BV2010_IAS02_PART A
布奥士视觉管理系统(BVMS)时间配置指南说明书
BVMS - Configure time servicesAuthor: Verhaeg Mario (BT-SC/PAS4-MKP)Date: 2 August, 2019BVMS - Configure time services 2 of 101Document information 3 1.1Version history 3 2Introduction 4 2.1Time: what is the challenge? 4 2.2Synchronizing time4 2.3Windows Time Service4 2.4Summary4 3Management server configuration 6 3.1Operating system configuration 6 3.2BVMS Management Server configuration 8 4Workstation configuration 9 5Camera configuration 101 Document informationProject BVMS 10.0Reference n/aVersion13Last modified02 August 20191.1 Version historyVersion Date Author Comment 132019-08-02Verhaeg Mario (BT-SC/PAS4-MKP)2 IntroductionTime is everything: meetings, public transportation, religion, transactions: the whole world is working because the concept of “time” exists. Within a security (or any other) system this is not different: recording schedules, logging, authorizations, encryption keys, timelines, all of these concepts can exist because of time. As a result, time can either make or break a system: problems can appear only due to a time difference of a couple of seconds between two system components. 2.1 Time: what is the challenge?Each device has its own internal clock, which is based on a hardware mechanism. This mechanism acts like a watch: try to put two watches together and synchronize them on the millisecond. A security system consists out of more than two devices, it can consist of thousands of devices. Synchronizing the time of all these devices by hand is a very time consuming task. Additionally, due to small differences in electronic components, devices can have deviations from one another. These deviations cannot be detected by the human eye, but can result in considerable time differences when a device is running for months.2.2 Synchronizing timeThe Network Time Protocol (NTP) was created to solve these challenges. The Network Time Protocol is a network-based protocol for clock synchronization between system components. The protocol utilizes a standard IP network to communicate and can maintain a time difference (considering a local area network) of less than one millisecond between components. The Network Time Protocol is a standard protocol and documented in RFC 5905.The operation and configuration of the Network Time Protocol are complex: a hierarchical architecture needs to be set-up including several layers of systems which are able to run the Network Time Protocol. To reduce complexity the Simple Network Time Protocol (SNTP) was created. The Simple Network Time Protocol is mainly used when less accuracy (deviations of 1-2 seconds are acceptable).2.3 Windows Time ServiceThe Bosch Video Management System is running on Microsoft Windows Server operating systems. Windows includes an internal time service, which is explained on Microsoft Technet:“The Windows Time service, also known as W32Time, synchronizes the date and time for all computers running in an AD DS domain. Time synchronization is critical for the proper operation of many Windows services and line-of-business applications. The Windows Time service uses the Network Time Protocol (NTP) to synchronize computer clocks on the network so that an accurate clock value, or time stamp, can be assigned to network validation and resource access requests. The service integrates NTP and time providers, making it a reliable and scalable time service for enterprise administrators.The W32Time service is not a full-featured NTP solution that meets time-sensitive application needs and is not supported by Microsoft as such. For more information, see Microsoft Knowledge Base article 939322, Support boundary to configure the Windows Time service for high-accuracy environments (/fwlink/?LinkID=179459).”Source: Windows Time Service Technical Reference - Microsoft TechnetThe Windows Time service is based on the Simple Network Time Protocol.2.4 SummaryThe Network Time Protocol requires a very complex infrastructure, which impacts the total installation and configuration effort of the system. The Simple Network Time Protocol (also used for the Windows Time Service) reduces the complexity, but at the same time also reduces the accuracy.•For most security applications the Simple Network Time Protocol provides sufficient accuracy. Bosch recommends to use the Windows Time service, based on the Simple Network Time Protocol, as basis for time synchronization ina security network. This document provides best-practices on how to configure the Bosch Video ManagementSystem and related components in a time synchronization environment based the Windows Time service.•…Alternatively, the Network Time Protocol can be used whenever it is already existing inside an infrastructure or when event accuracy with a deviation less than one second is required. Due to the complexity of the infrastructure Bosch does not make any recommendations related to the Network Time Protocol.3 Management server configuration3.1 Operating system configurationThis section also applies for the Video Recording Manager and Mobile Video Service when these are not running on the management server.Microsoft has prepared a lot of documentation related to time configuration Go to the Microsoft Support: How to configure an authoritative time server in Windows Server page and scroll down to the section “Configuring the Windows Time service to use an external time source”. Click the download button under the “Here’s an easy fix” section.Figure: Download the Microsoft Windows Time service configuration utilityThe utility will configure external time servers. To select these, browse to and select two servers which are related to the geographical location of the system, for example “” and “”, referring to Germany and the Netherlands. Another (local or external) (S)NTP server can also be chosen.Start the Microsoft configuration utility and configure it as indicated and shown in the figure below. Administrative access is required to run the utility.Figure: locationsFigure: Windows Time service configurationAlternatively the configuration can be done from the command-line, using the command shown below.net stop w32timew32tm /config /syncfromflags:manual /manualpeerlist:", "net start w32timeThe configuration can be verified by starting the Windows Command prompt and issuing the command “w32tm /query /status”, as shown in the figure below. Notice the time source, this should point towards the configured servers.Figure: verifying configurationIt can take up to one minute before the correct time source is displayed.When there is a problem, the configured (S)NTP server can be tested by issuing the “w32tm /stripchart /computer:”, which should result in the output displayed in the figure below.Figure: test the (S)NTP serviceWhen an unexpected result is returned, it is recommended to check access to the specific (S)NTP server. A firewall might prevent the communication between the (S)NTP server and the management server.3.2 BVMS Management Server configurationBVMS automatically points devices to its own time-server. This can be changed by editing theBvmsCenterlServer.exe.config file, located in C:\Program Files\Bosch\VMS\bin\. Find the key "TimeServerIPAddress" and adjust the value, as shown in the example below (192.168.0.1).<!-- Ip address of the time server for VRM/NVR encoders(defaults to the Central-Server IP if not set). --><add key="TimeServerIPAddress"value="192.168.0.1" />Activate the configuration in the BVMS Configuration Client after changing this value!4 Workstation configurationThe Bosch Video Management System Operator client runs on a Windows workstation. When the workstation and server are part of the same Microsoft Active Directory service domain, no manual time synchronization needs to be configured.Figure: workstation configuration, "192.168.0.200" needs to be replaced by the IP address or Fully Qualified Domain Name of the management server.When the Bosch Video Management System workstation and management Server are not joined in a domain, or into the same domain, the workstation(s) need to be manually configured to use the management server as a time server. To achieve this, the description in Chapter 2 can be used. Instead of using the as a server, the management server is now entered.5 Camera configurationIf a camera is connected to a BVMS system the time server will be automatically configured.。
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BVMS - 版特斯商业汽车维修系统用户手册说明书
BVMS - Deployment guideAuthor: Verhaeg Mario (BT-SC/PAS4-MKP)Date: 18 February, 2020BVMS - Deployment guide 2 of 161Document information 3 1.1Version history 3 2Introduction 4 2.1General 4 3BVMS Functionality 5 4System requirements 7 5Content of the installation package 8 6Setup process 9 6.1Installation of the logbook 9 6.2Firewall configuration10 6.3Repair / Modify / Remove 10 6.4No-touch deployment package 10 7Patches11 8Languages 12 9Logfiles 13 10Commandline options 14 11Examples 161 Document informationProject BVMS 10.0Reference n/aVersion13Last modified18 February 20201.1 Version historyDate Version Description2020-02-18BVMS 10.0.1Added automatic firewall configuration.2 IntroductionThis document describes the installation package for BVMS and is version independent. Operating system support of the specific BVMS version is listed in the BVMS release notes.2.1 GeneralThe BVMS installation package is distributed by ZIP file from our product download web page and comes with all components that are required to deploy the BVMS on the target system. The installation package is based on InstallShield technology.Windows Installer V.4.5 or later is required. The setup requires administrative rights.••••••••••••••3 BVMS FunctionalityThe BVMS installation consists of the following installable components:The normal installation process, using the graphical user interface, the following components can be selected:Management Server (including Enterprise functionality)SSH ServiceConfiguration Client Operator Client Cameo SDKCameo SDK manual and samplesBVMS SDKMobile Video Service (MVS)Video Recording Manager (VRM)Secondary Video Recording Manager (SEC_VRM)Video Streaming Gateway (VSG)Components that are not selectable and visible during the installation process are implicitly required to run the program and are installed automatically:The Core component is required by the Management Server, Operator Client, Configuration Client, NVR and Cameo SDK.VSDK (Video SDK) is required by Client, ConfigClient, Server, MVS and Cameo SDK.The ExportPlayer is installed when Server or OpClient is selected. It installs the binaries for the native video player for exported video. The binaries can be exported together with the exported video. No further installation is required to run the Export Player, it can run directly from the exported folder.Components can be dependent on each other and will be automatically selected (for example, the BVMS SDK feature is required by Server, Operator Client, Configuration Client, and Cameo SDK) when running the setup in interactive mode with user interface. Please note that all components (also dependent components) must be specified when running insilent mode from command line by using the "ADDLOCAL" property (find examples at the end of the document).WarningInstalling a VRM and MVS on the same system is not possible and will not be supported.When updating the system, the feature selection dialogue can be skipped by using the “Update now” button on the welcome dialogue. All existing features will be updated then.WarningWhen upgrading the system silently by command line without changing the existing features, the ADDLOCAL property should not be used. Otherwise features not specified in the ADDLOCAL property will get un-installed.4 System requirementsTo run BVMS the following 3rd party prerequisites are required per component. All prerequisites are checked and installed on demand when running the Setup.exe.Feature/Prerequisite Purpose All Server SQL_Server OpClientCameoSDKConfigClientMVSService Handler Stops all BVMS Servicesbefore installation/upgradeXLogging Directory Creates loggingdirectoryX.NET Framework 4.7.2Support for managedcodeX*DWF Viewer (AutodeskDesign Review 2009)Display DWF maps X XVC++ RuntimeVC80/90/110/120/140Support for C/C++ code XOPC Core Components BIS ConnectionXSQL Server 2017 SP1ExpressLogbook Database XWindows Desktop Experience Video Features forWindows Server 2008X XMedia Foundation for Server 2012Windows features forimage decodingX XInstall and configure IIS Web server for MVS X•••••••••••••5 Content of the installation packageThe following folder structure and content can be found on the BVMS installation media:Root:Setup.exeSetup.ini: keeps information to control the setup (e.g. command line for the msi)Language specific .ini files BVMS folder:BVMS.msi: the Microsoft installer packageSeveral compressed installation files (.cab) used by the msiSeveral .mst files (transform files) to support different languages for the setupISSetupPrerequisites folder:All prerequisites required to install BVMS organized by sub-folders.NoTouchDeployment folder:Setup.exeContains a reduced installation package to update BVMS Clients only via No-Touch-Deployment. This package is used to update clients automatically when an update is required. It is available on the server and will be automatically uploaded to clients and started when the server version has changed.The No-Touch-Deployment package only contains the following features:CoreConfig Collector Operator ClientConfiguration Client BVMS SDK VSDKThe execution of the setup requires administrative rights.•••••••••••••6 Setup processThe setup process requires administrative rights and will be started by the “Setup.exe”. The so called bootstrapper wraps the installer package (MSI), checks system conditions and installs prerequisites that are required by all features (refer to the table above). Before any system changes are performed, all BVMS related services and applications are shutdown as the very first action. Next the Windows Installer Package “BVMS.msi” is called by the Setup.exe and additional system checks are performed:Is the setup started on a supported operating system?Is DiBos installed?Is the CameoSDK installed?Is the NVR Archive Player installed?When a system check fails, the installation will be aborted with a corresponding error message.A graphical user interface (GUI) will lead the user through the setup process:License agreementSelection of destination folder SNMP activation Feature selection IIS configurationFirewall configurationDependent on the feature selection additional feature prerequisites are installed. Finally the installer copies/replace files and performs custom actions to deploy the BVMS. Upon a successful installation the system needs to be re-booted. In case of a setup error a rollback is performed and the initial installation state is restored depending on the actual progress. The installation of prerequisites cannot be reverted and must be un-installed automatically.6.1 Installation of the logbookThe logbook feature is automatically installed together with the server feature. It is hosted in an SQL database and therefore requires SQL server installed as prerequisite. The database schema is created during the setup by a custom action. In case of an issue with the database creation (for example, SQL server not installed, service stopped, busy etc.) the following dialogue with a specific error text is displayed:The user can select how to proceed:Abort: Cancel the setup.Retry: Retry the logbook schema creation. If an issue with the SQL server can be fixed immediately, the logbook creation can be retried.Ignore: Ignore failed logbook schema creation and proceed with the setup. The setup can be re-started in repairmode at a later point in time when e.g. SQL server is fixed.NoteThe BVMS server can be operated without running SQL logbook. No event information will be stored, starting the management server may take longer then expected, and activating the configuration may take longer then expected.6.2 Firewall configurationThe firewall configuration dialog is a fixed step in the setup process and will allow automatic configuration of all required firewall settings to run BVMS.The applied rules and settings can be found in the readable command script file "C:\ProgramFiles\Bosch\VMS\bin\FirewallConfig.cmd".A warning message will be displayed if the configuration fails:NoteThe firewall rules that have been applied with the setup cannot be reverted and must be manually changed/removed if required.6.3 Repair / Modify / RemoveRemoval of the product of the can be accessed through the Control Panel > Programs and Features. Modifying and repairing the installation requires the original setup media by starting the Setup.exe.6.4 No-touch deployment packageThe execution of the No-Touch-Deployment package during an automatic update of clients, is performed with a reduced user interface. It will also update the prerequisites, if required. No user interaction is required.NoteIt is not recommended to run the BVMS.msi directly, since system requirements are not checked andprerequisites will not be installed or updated. This may lead to unpredictable results.7 PatchesBug fixes and small updates are usually distributed as Microsoft patches and can be downloaded from the website. The patch package must be installed according to the Microsoft patch process (just double click if no further options are required). A read-me file that comes with the patch will give detailed information.••••••••••••••••••••••••8 LanguagesThe Bosch VMS Setup supports the following languages:English Arabic Chinese (traditional, simplified)Czech Danish Dutch Finnish French German Greek Hungarian Italian Japanese Korean Norwegian Polish Portuguese (Portugal)Russian Spanish Swedish Thai Turkish Vietnamese Hebrew (on request)Based on the operating system language, the setup language is automatically selected.9 LogfilesThe Windows Installer package (MSI) writes a logfile by default:“%PROGRAMDATA%\Bosch\VMS\Log \BVMS_Setup_V.w.x.y.z.log”(e.g. C:\ProgramData\ Bosch\VMS\Log\ BVMS_Setup_V.7.5.0.123.log)This logfile keeps all information from the Windows Installer (msiexec.exe) in debug mode. Logging for the Setup.exe is not active by default, but can be activated by command line:Setup.exe /debuglog<logfile name>(e.g. Setup.exe /debuglog"C:\<Path>\setupexe.log")10 Commandline optionsThe Setup.exe and BVMS.msi support various command line arguments./s: silent modeThe command Setup.exe /s runs the installation in silent mode, by default based on the responses contained in a response file called Setup.iss in the same directory. (Response files are created by running Setup.exe with the /r option). The command Setup.exe /s also suppresses the Setup.exe initialization window for a Basic MSI installation program, but it does not read a response file. To run a Basic MSI product silently, run the command line Setup.exe /s /v/qn. To specify the values of public properties for a silent Basic MSI installation, you can use a command such as:Setup.exe /s /v"/qn INSTALLDIR=D:\Destination"./a: administrative installationThe /a option causes Setup.exe to perform an administrative installation. An administrative installation copies (and uncompresses) your data files to a directory specified by the user, but it does not create shortcuts, register COM servers, or create an uninstallation log./v: pass arguments to MSIExecThe /v option is used to pass command-line options and values of public properties through to Msiexec.exe./x: Uninstall modeThe /x option causes Setup.exe to uninstall a previously installed product./j: Advertise modeThe /j option causes Setup.exe to perform an advertised installation. An advertised installation creates shortcuts, registers COM servers, and registers file types, but does not install your product's files until the user invokes one of these "entry points."/debuglog: Installation loggingTo specify the name and location of the log file, pass the path and name, as in the following example:Setup.exe /debuglog"C:\PathToLog\setupexe.log"To generate a log file for the feature prerequisites in the installation, use the /v parameter to set the ISDEBUGLOG property to the full path and file name for the log file, as follows:Setup.exe /debuglog"C:\PathToSetupLogFile\setup.log" /v"ISDEBUGLOG=prereq.log"You can use directory properties and environment variables in the path for the feature prerequisite log file./hide_progress: Suppress all progress dialogsSuppresses the display of any small and standard progress dialogs that might be shown during initialization.The small progress dialog is usually used for installations that display a splash screen during initialization, since a standard-size progress dialog does not leave any space for the splash screen. Specifying the /hide_progress option hides the small progress dialog for those installations, so end users would see just the splash screen without any progress indication.For command line arguments of the MSI package please refer to Microsoft’s documentation for Windows Installer.NoteThe Setup.exe and the .msi package support different command line arguments. When running the setup silently the appropriate argument has to be specified for both setup.exe and .msi.NoteWhen running the setup silent from command line, all features and dependent have to be specified manually in the ADDLOCAL property. The dependent features are automatically selected when using the setup with userinterface.NoteThere are different user interface levels for running the msi:/qn: Displays no user interface./qb: Displays a basic user interface./qr: Displays a reduced user interface with a modal dialog box displayed at the end of the installation./qf: Displays the full user interface with a modal dialog box displayed at the end./qn+: Displays no user interface, except for a modal dialog box displayed at the end./qb+: Displays a basic user interface with a modal dialog box displayed at the end./qb-: Displays a basic user interface with no modal dialog boxes.If the UI sequence of the main installation's .msi package is skipped by using “/qn”, the setup launcher evaluates Windows Installer properties such as ADDLOCAL,NoteIf the UI sequence of the main installation's .msi package is skipped by using “/qn”, the setup launcher evaluates Windows Installer properties such as ADDLOCAL, ADDSOURCE, ADDDEFAULT, and ADVERTISE to determine if any feature prerequisites should be installed, and it installs feature prerequisites accordingly.NoteWhen running the setup completely silent, the system reboots unasked at the end of the installation.NoteSome prerequisite installations (e.g. .NET framework) may also reboot the system unasked. The setup will usually resume after restart.11 ExamplesThe following examples can be used to install the related components silently. The texts can be copied into a batch file for re-use.Operator Client silent setupSetup.exe /s /v"/qn ADDLOCAL=Core,Client,BVMSSDK,ConfigCollector,VSDK,ExportPlayer"BVMS SDK silent setupSetup.exe /s /v"/qn ADDLOCAL=BVMSSDK,ConfigCollector"All-in-one silent setupSetup.exe /s /v"/qn ADDLOCAL=Core,Client,BVMSSDK,ConfigCollector,VSDK,ExportPlayer"CameoSDK silent setupSetup.exe /s /v"/qn ADDLOCAL=Core,CameoSDK,CameoSDKManuals,BVMSSDK,ConfigCollector,VSDK"VSG silent setupSetup.exe /s /v"/qn ADDLOCAL=VSG"MVS silent setupSetup.exe /s /v"/qn ADDLOCAL=Core,MVS,BVMSSDK,ConfigCollector,VSDK CONFIGUREIIS=1"Management server silent setupSetup.exe /s /v"/qn ADDLOCAL=Core,Server,SQL_Server,BVMSSDK,ConfigCollector,VSDK,ExportPlayer" Configuration Client silent setupSetup.exe /s /v"/qn ADDLOCAL=Core,ConfigClient,BVMSSDK,ConfigCollector,VSDK"。
微软消息分析器:一款高级网络包分析器说明书
Neil B MartinT est Manager WSSC-Interop and T oolsMicrosoft CorporationMicrosoft Message Analyzer Packet Analysis at a Higher LevelContent•Packet Analyzer -review •Abstracting views of protocols •Alternative data sources •ETW•Remote Capture•Bluetooth•USB•Evtx•Logs filesMessage Analyzer –What is it?• A packet analyzer is a computer program or a piece of computer hardware that can intercept and log traffic passing over all or part of a network•Packet analyzers capture network packets in real time and display them in human-readable format•WireShark, Microsoft NetMon3.4•These tools are dissectors•If they recognize a packet they dissect it and display the inner fields of the packet•The parsers are written based on the protocol specifications or in some cases through reverse engineering of the protocols whenno specification is available•Dissection and Abstraction•We want to allow a higher level of abstraction view of protcols•Pattern Matching•Match up request/response pairs where possible•Called an operation•Different Viewers and Charts•Addressing many of the challenges of diagnosing modern networks •Protocol Validation•Identify packets that do not match the specification•Data capture from multiple sources•NDIS, Bluetooth, USB, Windows Firewall Layer, Web Proxy•Header only network capture•Reduce data in volume scenarios•Correlation of data across multiple data sources and logs•Load and display multiple data source•Message Analyzer captures ETW •ETW -Event Trace for Windows •Message Capture from:•Traditional NDIS traffic from the Network Adapter •Windows Filtering Platform 9aka Firewall)•Web proxy•USB ports•Bluetooth•Windows SMB Client•Windows SMB Server ……•E vent T racing for W indows ETW•High-resolution (<<100µs)logging infrastructure allows any component to tell the outside world what it is currently doing by firing ETW events.• A powerful diagnostic tool to log every methods/lines inside the code with reasonable performance fordebugging/troubleshooting.•MSDN on ETW/en-us/library/bb968803(VS.85).aspxAll Windows ETW Sources are available to Message Analyzer•Capability to perform remote capture •Select machine and give credentials•Collect data via ETW from NIC on remote machine•Powerful, extensible viewing and analysis •Browse, Select, View•Browse for messages from various sources (live, or stored)•Select a set of messages from those sources by characteristic(s)•View messages in a provided viewer, configure or build your own • A new high-level grid view•High level “Operations” view with automatic re-assembly•“Bubbling up” of errors in the stack to the top level•Ability to drill down the stack to underlying messages and/or packets•On the fly grouping, filtering, finding, or sorting by any message property •Payload rendering•V alidation of message structures, behavior, and architecture•Does the protocol comply with the specifications?•Over 450 published specifications for Windows Protocols(as of Windows 8.1)(/en-us/library/gg685446.aspx)Available online and as PDFContinue to publish new documents with each release of Windows •Continue to develop tools and technology to aid with the development of protocol documents, parsers and test technologyHow to get MA: /en-us/download/details.aspx?id=40308 How to get help: Blog,Operating Guide, T echnet Forum for Message Analyzer •We invite you to Explore Message Analyzer•Connect Community•https:///site216/。
布斯曼系列E评级中断型中等电压保险丝说明书
Description:Bussmann™ series E-Rated, current-limiting, medium voltage fuses for feeder circuit, switchgear and transformer protection.Features and benefits• Current-limiting E-Rated medium voltagefuses are defined by their melting time-current characteristic that permit their electrical interchangeability with other fuses of the same E Rating.• E-Rated fuses must have a defined current response time specified by ANSI C37.46.E-Rated fuse of 100 amps and below must melt in 300 seconds at an RMS current within the range of 200% to 240% of the fuse’s nameplate current rating. E-Rated fuses greater than 100 amps must melt in 600 seconds at an RMS current within the range of 220% to 264% of the fuse’s nameplate current rating.• E-Rated fuses are physically dimensioned for easy installation in existing hardware.• Current-limiting fuses provide positive interruption even on low fault currents. The fuse limits the magnitude of electromechanical stresses in the protected apparatus.• Constructions available in ferrule, bolt-onand clip-lock, and specialty mount fuses for AMPGARD motor starters.• Outdoor rating available on select catalog numbers (requires installation in a suitable enclosure).• Open fuse indicator easily integratesinto automation schemes and speeds troubleshooting by providing a positive visual indication of fuse operation.• Optional remote contact signaling microswitch available.• 50/60Hz operating frequency for worldwide application.• Mountings are available in disconnect and non-disconnect versions with porcelain or glass poly-ester insulators.• Live parts and end fittings available.T ypical applications:• Medium voltage transformer primaryprotection• Medium voltage feeder circuit protection • Medium voltage switches• Medium voltage metal-enclosed switchgear5.5kV E-Rated medium voltage fuses for feedercircuit, switchgear and transformer protection2Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protectionE-Rated medium voltage ferrule fusesCatalog symbols:•General purpose:• 5CLE-_E-D (10-25A)• 5CLE-_E (10-1350A)• 5HLE-_E (10-450A)•JCY-_E (1-25A)•Full range (per ANSI C37.40)•MV055F_ (10-450A)Ratings*:• Volts — 5.5kV • Amps — 1 to 1350A•Interrupting ratings — 40 to 65 kA RMS Sym* See catalog number tables for voltages, ampacities and interrupting ratings by catalog number.Agency information:•E-Rated fuses meet the performance characteristics of ANSI C37.46•UL Listed, Guide JEEG, File E240398. See catalog numbers.Dimensions (see catalog number tables for values)Recommended CLE and HLE holders:10E-D–250E Single barrel 3.0 (76.2)12.0 (304.8)15.9 (403.9)Disconnect 605HLE-PDM-D 5HLE-GDM-D CLE-DL-D CLE-DF-D300E–450E Double barrelNon-disconnect 60 3.0 (76.2)12.0 (304.8)15.9 (403.9)5HLE-PNM-E 5HLE-GNM-E CLE-NL-E —Disconnect605HLE-PDM-E5HLE-GDM-ECLE-DL-ECLE-DF-E* See page 12 for illustrations and dimensions** End fittings supplied only when required.† Disconnect mountings provide a means for fuse extraction only. Do not use a disconnect mounting for load switching or fuse removal while energized.3Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protectionCLE, HLE and JCY general purpose11.2 (284) 2 (51)9 (229)401Indoor/outdoor2JCY-2E 3JCY-3E 5JCY-5E 7JCY-7E 10JCY-10E 1017.9 (455) 3 (76)14 (356)635CLE-10E-D 1015.9 (404)12 (305)5HLE-10E 1511.2 (284) 2 (51)9 (229)40JCY-15E 1512.9 (328)11.5 (292)50Indoor 5CLE-15E*1517.9 (455) 3 (76)14 (356)63Indoor/outdoor5CLE-15E-D 1515.9 (404)12 (305)5HLE-15E 2011.2 (284) 2 (51)9 (229)40JCY-20E 2012.9 (328)11.5 (292)50Indoor 5CLE-20E*2017.9 (455) 3 (76)14 (356)63Indoor/outdoor5CLE-20E-D 2015.9 (404)12 (305)5HLE-20E 2511.2 (284) 2 (51)2 (51)9 (229)40JCY-25E 2512.9 (328)11.5 (292)50Indoor5CLE-25E*2517.9 (455) 3 (76)14 (356)63Indoor/outdoor5CLE-25E-D 2515.9 (404)12 (305)5HLE-25E 3017.9 (455)14 (356)5CLE-30E 3015.9 (404)12 (305)5HLE-30E 4017.9 (455)14 (356)655CLE-40E †4015.9 (404)12 (305)5HLE-40E †5017.9 (455)14 (356)5CLE-50E †5015.9 (404)12 (305)5HLE-50E †6517.9 (455)14 (356)5CLE-65E †6515.9 (404)12 (305)5HLE-65E †8017.9 (455)14 (356)5CLE-80E †8015.9 (404)12 (305)5HLE-80E †10017.9 (455)14 (356)5CLE-100E †10015.9 (404)12 (305)5HLE-100E †12517.9 (455)14 (356)5CLE-125E †12515.9 (404)12 (305)5HLE-125E †15017.9 (455)14 (356)5CLE-150E †15015.9 (404)12 (305)5HLE-150E †17517.9 (455)14 (356)5CLE-175E †17515.9 (404)12 (305)5HLE-175E †20017.9 (455)14 (356)5CLE-200E †20015.9 (404)12 (305)5HLE-200E †25017.9 (455)14 (356)5CLE-250E †25015.9 (404)12 (305)5HLE-250E †30017.9 (455)14 (356)25CLE-300E †30015.9 (404)12 (305)5HLE-300E †35017.9 (455)14 (356)5CLE-350E †35015.9 (404)12 (305)5HLE-350E †40017.9 (455)14 (356)5CLE-400E †40015.9 (404)12 (305)5HLE-400E †45017.9 (455)14 (356)5CLE-450E †45015.9 (404)12 (305)5HLE-450E †* Fuses conform to dimensional standards established by Westinghouse.† UL Listed, Guide JEEG, File E240398.4Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection5.5kV Time-current curves — minimum melt for JCY-_E fuses5Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection 5.5kV Time-current curves — total clear for JCY-_E fuses6Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protectionFigure 2Figure 3Figure 1MV055 full range15.7 (399)2 (51)12 (305)501Indoor7MV055F1CAX7E 10MV055F1CAX10E 10 3 (76)MV055F1DAX10E 15 2 (51)MV055F1CAX15E 15 3 (76)MV055F1DAX15E 20 2 (51)MV055F1CAX20E 20 3 (76)MV055F1DAX20E 25 2 (51)MV055F1CAX25E 25 3 (76)MV055F1DAX25E 30 2 (51)MV055F1CAX30E 30 3 (76)MV055F1DAX30E 40 2 (51)MV055F1CAX40E 40 3 (76)MV055F1DAX40E 50 2 (51)MV055F1CAX50E 50 3 (76)MV055F1DAX50E 65 2 (51)MV055F1CAX65E 65 3 (76)MV055F1DAX65E 80MV055F1DAX80E 100MV055F1DAX100E 125MV055F1DAX125E 150MV055F1DAX150E 175MV055F1DAX175E 200MV055F1DAX200E 2502MV055F2DAX250E 300MV055F2DAX300E 350MV055F2DAX350E 400MV055F2DAX400E 450MV055F2DAX450ERecommended CLE, HLE and MV055 fuseclips1Enclosed fuseclip 3 (76)4.14 (105)2.45 (62)3.01 (76)1.19 (30)5.64 (143)1.51 (38)0.4 (10)A3354730*Open fuseclip2See dimensions drawing1A0065Spring loaded open fuseclip39078A67G04*For single barrel applications only. Not sold in pairs.7Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection 5.5kV Time-current curves — minimum melt for MV055_ 2 inch diameter fuses.1101001000100010100.0111000005A 07A65A50A40A 30A 25A 20A 15A10AT I M E I N S E C O N D SCURRENT IN AMPERESMV055_ (2 inch diameter)8Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection5.5kV Time-current curves — total clear for MV055_ 2 inch diameter fuses1.01100101000100010010.110000CURRENT IN AMPEREST I M E I N S E C O N D S07A 05A65A50A40A 30A25A 20A 15A 10A MV055_ (2 inch diameter)9Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection 5.5kV Time-current curves — minimum melt for MV055_ 3 inch diameter fusesT I M E I N S E C O N D SCURRENT IN AMPERES.1101001000.0111000001000010001010010A15A20A 25A 30A40A 50A65A 80A 100A125A 150A 175A 200A 250A 300A 350A 400A 450AMV055_ (3 inch diameter)10Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection5.5kV Time-current curves — total clear for MV055_ 3 inch diameter fusesT I M E I N S E C O N D SCURRENT IN AMPERES.1101001000.0111000001000010001001010A15A20A25A 30A40A50A65A80A100A125A 150A 175A 200A 250A 300A 350A 400A 450AMV055_ (3 inch diameter)11Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection 5.5kV Peak let-through for MV055_ 2 and 3 inch diameter fuses1AVAILABLE CURRENT IN KILOAMPERES (RMS Symmetrical)M A X I M U M L E T -T H R U (P e a k K i l o a m p e r e s )10010.1.1110015A 20A 25A 40A 50A 65A 80A 100A 07&10A 05A125A 175A 450A 400A 300A 150A350A30A 200A 250A ABMV055_ (2 and 3 inch diameter)12Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protectionCLE and HLE Type mountings - in (mm)5CLE-PDM-C 12.74 (323.6) 6 (152.4)25.5 (647.7)0.75 (19)1.75 (44.4) 4.5 (114.3)9.75 (247.6)605CLE-GDM-D 15.24 (387.1) 6 (152.4)25 (635)0.62 (15.7)1.75 (44.4) 4.5 (114.3)11.72 (297.7)605CLE-PDM-D 15.24 (387.1) 6 (152.4)25 (635)0.62 (15.7)1.75 (44.4) 4.5 (114.3)11.72 (297.7)605HLE-GDM-D 16.25 (412.8) 6 (152.4)23 (584.2)0.62 (15.7)1.75 (44.4) 4.5 (114.3)11.72 (297.7)605CLE-PNM-E 15.24 (387.1) 6 (152.4)25 (635)0.62 (15.7)1.42 (36.1) 4.5 (114.3)12.48 (317)605HLE-GNM-E 16.25 (412.7) 6 (152.4)23 (584.2)0.62 (15.7)1.75 (44.4) 4.5 (114.3)12.48 (317)605HLE-PNM-E16.25 (412.7)6 (152.4)23 (584.2)0.62 (15.7)1.75 (44.4)4.5 (114.3)12.48 (317)60CLE and HLE T ype disconnect mounting †CLE and HLE Type non-disconnect mounting† Disconnect mountings provide a means for fuse extraction only. Do not use a disconnect mounting for load switching or fuse removal while energized.13Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection• • •• • Amps — 10 to 900A•Interrupting ratings — 31 to 65 kA RMS Sym•0.250.38X.XX (XX.X)HCL clip-lockIndicator to be (53.8)Indicator to be (53.8)CLE four barrel bolt-onNote: 1100E and 1350E fuses require two double barrel fuses (4 total barrels) customer to parallel.14Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protectionAHLE for Eaton AMPGARD motor starting assemblies651155AHLE-15E 205AHLE-20E 255AHLE-25E 305AHLE-30E 405AHLE-40E †505AHLE-50E †655AHLE-65E †805AHLE-80E †1005AHLE-100E †1255AHLE-125E †1505AHLE-150E †1755AHLE-175E †2005AHLE-200E †2505AHLE-250E †30025AHLE-300E †3505AHLE-350E †4005AHLE-400E †4505AHLE-450E †† UL Listed, Guide JEEG, File E240398.HCL clip-lock versions16.8 (427)3 (76)N/A651Indoor155HCL-15E 205HCL-20E 255HCL-25E 305HCL-30E 405HCL-40E †505HCL-50E †655HCL-65E †805HCL-80E †1005HCL-100E †1255HCL-125E †1505HCL-150E †20022.8 (579)5HCL-200E †2505HCL-250E †30025HCL-300E †4005HCL-400E †4505HCL-450E †5005HCL-500E 6005HCL-600E† UL Listed, Guide JEEG, File E240398.15Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protectionCLE, BHLE and BHCL bolt-on versions19.2 (488) 3 (76)17.9 (455)651Indoor155BHLE-15E 205BHLE-20E 255BHLE-25E 305BHLE-30E 405BHLE-40E †505BHLE-50E †655BHLE-65E †805BHLE-80E †1005BHLE-100E †1255BHLE-125E †1505BHLE-150E †1755BHLE-175E †2005BHLE-200E †20025.1 (637)23.7 (602)5BHCL-200E 25019.2 (488)17.9 (455)5BHLE-250E †25025.1 (637)23.7 (602)5BHCL-250E 30019.2 (488)17.9 (455)25BHLE-300E †30025.1 (637)23.7 (602)5BHCL-300E 35019.2 (488)17.9 (455)5BHLE-350E †4005BHLE-400E †40025.1 (637)23.7 (602)5BHCL-400E 45019.2 (488)17.9 (455)5BHLE-450E †45025.1 (637)23.7 (602)5BHCL-450E 5005BHCL-500E 6005BHCL-600E 60028.9 (734) 4 (102)18.4 (467)405CLE-600E 75025.1 (637) 3 (76)23.7 (602)6335BHCL-750E 75028.9 (734) 4 (102)18.4 (467)4025CLE-750E 90025.1 (637) 3 (76)23.7 (602)6335BHCL-900E 110019.8 (503)4 (102)18.4 (467)3145CLE-1100E 13505CLE-1350E† UL Listed, Guide JEEG, File E240398.16Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection5.5kV Time-current curves — minimum melt for 5CLE-_E and 5CLE-_-D5CLE-_Curve 70548501April 16, 1999Reference # 563532Curve 70545801April 16, 1999Reference # 705458Curve 70546001April 20, 1999Reference # 705460Curve 62908902April 1999Reference # 62908917Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection5.5kV Time-current curves — total clear for 5CLE-_E and 5CLE-_-D5CLE-_Curve 70548702April 16, 1999Reference # 563533Curve 70545901April 20, 1999Reference # 705459Curve 70546101April 20, 1999Reference # 705461Curve 62908903April 1999Reference # 62908918Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection5.5kV Peak let-through for 5CLE-_E and 5CLE-_-D5CLE-_Curve 70548701April 1999Reference # 705487Curve 70547601April 1999Reference # 705476Curve 62908904April 1999Reference # 62908919Technical Data 10351Effective September 20185.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection5.5kV Time-current curves — minimum melt for 5HLE-_E, 5AHLE-_E and 5BHLE-_E5HLE-_, 5BHLE-_, 5AHLE-_Curve 70548507April 16, 1999Reference # 563532Curve 70545805April 16, 1999Reference # 705458Curve 70546005April 20, 1999Reference # 70546020Technical Data 10351Effective September 2018 5.5kV E-Rated medium voltage fuses forfeeder circuit, switchgear and transformer protection5.5kV Time-current curves — total clear for 5HLE-_E, 5AHLE-_E and 5BHLE-_E5HLE-_, 5BHLE-_, 5AHLE-_Curve 70548607April 16, 1999Reference # 563533Curve 70545905April 20, 1999Reference # 705459Curve 70546105April 20, 1999Reference # 7054615.5kV Peak let-through for 5HLE-_E, 5AHLE-_E and 5BHLE-_E5HLE-_, 5BHLE-_, 5AHLE-_Curve 70548703 April 1999Reference # 705487Curve 70547603April 1999Reference # 70547621 5.5kV Time-current curves — minimum melt for 5HCL-_E5HCL-_Curve 70548505Janaury 2001Curve 70545803January 2001Curve 70546003April 2001Curve 66703401 Janaury 20015.5kV Time-current curves — total clear for 5HCL-_E5HCL-_Curve 70548605Janaury 2001Curve 70545903Janaury 2001Curve 70516103Janaury 2001Curve 66703501Janaury 200123 Effective September 201824The only controlled copy of this Data Sheet is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.Eaton and Bussmann are valuable trademarks of Eaton in the U.S. and other countries. Y ou are not permitted to use the Eaton trademarks without prior written consent of Eaton.ANSI is a registered trademark of the American National Standards AssociationIEEE is a registered trademark of the Institute of Electrical and Electronics Engineers NEMA is a registered trademark of the National Electrical Mfgrs. AssociationNFPA is a registered trademark of the National Fire Protection AssociationUL is a registered trademark of the Underwriters Laboratories, Inc.Eaton1000 Eaton Boulevard Cleveland, OH Bussmann Division 114 Old State Road Ellisville, MO 63021United States/bussmannseries © 2018 EatonAll Rights Reserved Printed in USAPublication No. 10351 - BU-SB15151September 20185.5kV Peak let-through for 5HCL -_E5HCL-_Curve 70548702January 2001Curve 70547602January 2001Curve 66703701January 2001。
Adobe Flash Catalyst - Lisez-moi
Fichier Lisez-moid’Adobe® Flash® Catalyst™Bienvenue dans Adobe® Flash® Catalyst™ CS5. Ce document contient des informations, des mises à jour et des conseils de dépannage qui ne figurent pas dans la documentation Flash Catalyst.Configuration minimale requiseInstallation du logicielDésinstallation du logicielLogiciel d’évaluationLicence électroniqueInformations d’enregistrementInstallation des policesProblèmes connusAssistance clientèleAutres ressourcesConfiguration minimale requiseWindows®•Processeur Intel® Pentium® 4 ou AMD Athlon® 64•Microsoft® Windows XP avec Service Pack 2, Windows Vista® Édition Familiale Premium, Professionnel, Intégrale ou Entreprise avec Service Pack 1 ou Windows 7 • 1 Go de RAM (2 Go recommandés)• 1 Go d’espace disponible sur le disque dur pour l’installation ; espace supplémentaire requis pendant l’installation (ne peut pas être installé sur des périphériques de stockageamovibles à mémoire flash)•Ecran 1024 x 768 (1280 x 800 conseillé) avec carte vidéo 16 bits•Lecteur de DVD-ROM•Java™ Runtime Environment 1.5 (32 bit) ou 1.6•Connexion Internet haut débit requise pour les services en ligneMac OS•Processeur Intel®•Mac OS X v10.5.7 ou v10.6• 1 Go de RAM (2 Go recommandés)• 1 Go d’espace disque disponible pour l’installation ; espace supplémentaire requis pendant l’installation (ne peut pas être installé sur un volume qui utilise un système defichiers sensible à la casse ou sur des périphériques de stockage amovibles à mémoireflash)•Ecran 1024 x 768 (1280 x 800 conseillé) avec carte vidéo 16 bits•Lecteur de DVD-ROM•Java Runtime Environment 1.5 ou 1.6•Connexion Internet haut débit requise pour les services en ligne*Pour une liste mise à jour de la configuration requise, consultez la configuration requise. Installation du logiciel1. Désinstallez toute version antérieure du produit. Avant d’installer le logiciel, fermez toutes les applications en cours d’exécution sur le système, y compris les autres applications Adobe, les applications Microsoft Office et les fenêtres de navigateur. Il est également conseillé dedésactiver temporairement la protection antivirus lors du processus d’installation.2. Vous devez disposer des droits d’administration ou être en mesure de valider des opérations en tant qu’administrateur.3. Procédez de l’une des façons suivantes :Windows :o Insérez le DVD dans le lecteur et suivez les instructions qui s’affichent à l’écran.Si le programme d’installation ne se lance pas automatiquement, accédez audossier Flash Catalyst CS5 situé à la racine du DVD, puis double-cliquez sur Set-up.exe pour commencer l’installation.o Si vous avez téléchargé le logiciel sur Internet, le programme d’installation est extrait et se lance automatiquement. Si le programme d’installation ne se lancepas automatiquement, accédez au dossier Flash Catalyst CS5, double-cliquez surSet-up.exe puis suivez les instructions qui s’affichent à l’écran.Macintosh :o Insérez le DVD dans votre lecteur, accédez au dossier de l’application se trouvant à la racine du disque, double-cliquez sur Install.app, puis suivez les instructionsqui s’affichent à l’écran.o Si vous avez téléchargé le logiciel sur le Web, accédez au dossier de l’application, double-cliquez sur Install.app, puis suivez les instructions qui s’affichent àl’écran.4. Pour plus d’informations sur l’installation de Flash Catalyst CS5, allezà/go/flashcatalyst_releasenotes_fr.Désinstallation du logiciel1.Avant de désinstaller le logiciel, fermez toutes les applications en cours d’exécution surle système, y compris les autres applications Adobe, les applications Microsoft Office et les fenêtres de navigateur.2.Procédez de l’une des façons suivantes :o Sous Windows XP, ouvrez le Panneau de configuration et cliquez deux fois sur Ajout/Suppression de programmes. Sélectionnez le produit à désinstaller, cliquezsur Modifier/Supprimer, puis suivez les instructions qui s’affichent à l’écran.o Sous Windows Vista et Windows 7, ouvrez le Panneau de configuration et double-cliquez sur Programmes et fonctionnalités. Sélectionnez le produit àdésinstaller, cliquez sur Désinstaller/Modifier, puis suivez les instructions quis’affichent à l’écran.o IMPORTANT : Mac OS dispose d’une nouvelle fonctionnalité de désinstallation.NE faites PAS glisser les applications vers la corbeille pour les désinstaller. Pourdésinstaller en toute sécurité le logiciel sous Mac OS X, cliquez deux fois sur leprogramme d’installation du produit dans Applications/Utilities/Adobe Installersou cliquez deux fois sur le raccourci Désinstaller dans le dossier Application.Sélectionnez Supprimer des préférences, puis identifiez-vous en tantqu’administrateur et suivez les instructions qui s’affichent à l’écran.Remarque : si vous souhaitez installer le produit sur un autre ordinateur, vous devez ledésactiver au préalable sur l’ordinateur source. Pour ce faire, choisissez la commande Aide > Désactiver.Logiciel d’évaluationSaisie d’un numéro de sérieSaisissez le numéro de série du logiciel que vous avez acheté dans l’écran correspondant. Cetécran se charge au premier démarrage de l’application. Vous pouvez saisir le numéro de série propre à l’application ou un numéro de série de la suite Creative Suite contenant l’application.Si vous avez acheté un produit de la suite Creative Suite, vous pouvez saisir le numéro de série dans l’une des applications appartenant à la suite Creative Suite. Les autres applicationsinstallées dans le cadre de Creative Suite reconnaîtront le nouveau numéro de série lors de leur prochain démarrage.Seules les applications qui utilisent une version d’essai reconnaîtront le nouveau numéro desérie. Si l’une des applications a déjà été installée avec un numéro de série différent, elle continuera d’utiliser ce numéro jusqu’à ce que vous supprimiez l’ancien en sélectionnant l’option appropriée dans le menu Aide > Désactiver. Le nouveau numéro de série sera ensuite reconnu au lancement suivant de l’application.Le numéro de série que vous avez acheté permet l’utilisation du logiciel dans une languespécifique et sera reconnu par un produit installé dans cette langue uniquement.Licences en volumeLes clients qui souhaitent acheter des licences en volume ne peuvent pas les obtenir directement à partir d’une version d’évaluation. Toutefois, un numéro de série de licence en volume peut être utilisé avec toutes les applications Creative Suite, à l’exception des versions d’évaluation ou commerciales d’Acrobat 9 livrées avec Creative Suite. Le logiciel Acrobat 9 pour licences en volume doit être acheté auprès d’un centre d’achat de licences agréé Adobe. Contactez votre revendeur ou le centre de licence agréé par Adobe pour commander une licence en volume. Pour rechercher un revendeur dans votre région, accédez au site Web :/resellerfinder/na/reseller.jsp.Licence électroniqueVous devez accepter les termes du contrat de licence et de garantie pour utiliser ceproduit. Consultez le site /go/eulas_fr pour plus de détails. Ce produit peut tenter de s’activer automatiquement via Internet. Consultez le site/go/activation_fr pour plus de détails.Informations d’enregistrementLa création d’un ID Adobe permet d’enregistrer le logiciel. Enregistrez le logiciel pourbénéficier d’informations actualisées, de formations, de bulletins d’information et d’invitations aux événements et séminaires Adobe.Installation des policesToute la documentation liée aux polices est disponible en ligne. Visitez la page/type/browser/landing/creativesuite/creativesuite5.html pour consulter notre guide de l’utilisateur OpenType (OpenType User Guide), notre fichier Lisez-moi OpenType (OpenType ReadMe), les liens vers des fichiers Lisez-moi sur les polices, des listes de polices installées par les divers produits CS5 et des listes de polices incluses sur le DVD pour chaque produit CS5.Le programme d’installation Flash Catalyst CS5 installe les polices dans un répertoire de polices système par défaut. Parmi ces polices, plusieurs sont de nouvelles versions de polices installées par des versions antérieures de Creative Suite 4. Si le programme d’installation détected’anciennes versions de ces polices dans le répertoire de polices par défaut, il désinstalle ces anciennes versions et les enregistre dans un nouveau répertoire. Vous trouverez ci-dessous lerépertoire de polices par défaut :Apple Macintosh : <Disque système>/Bibliothèque/FontsWindows : <Disque système>:\Windows\FontsLes anciennes polices sont enregistrées dans un nouveau répertoire :Apple Macintosh : <Disquesystème>/Bibliothèque/Application Support/Adobe/SavedFonts/currentWindows : <Disque système>:\Program Files\Fichiers communs\Adobe\SavedFonts\currentCe nouveau répertoire contient également un fichier « Lisez-moi.html » qui répertorie les polices enregistrées et les numéros de version du nouveau et de l’ancien fichier de polices.Vous pouvez réinstaller les anciennes polices en supprimant les nouveaux fichiers de polices du répertoire de polices par défaut et en déplaçant les anciens fichiers dans ce répertoire.Problèmes connusReportez-vous à /go/flashcatalyst_releasenotes_fr pour obtenir des informations de dernière minute et consulter les problèmes connus de Flash Catalyst CS5.Prise en charge de la norme GB18030 pour Windows XPPour garantir l’affichage de tous les caractères de la norme chinoise GB18030 sur les systèmes Windows XP, Adobe recommande l’installation du package de prise en chargeMicrosoft GB18030. Ce package de prise en charge a pour fonction de mettre à jour unsystème XP, notamment ses polices et ses éditeurs de méthodes d’entrée (IME, input-method-editor) de sorte qu’il exploite correctement le jeu de caractères GB18030. Vous pouveztélécharger ce package de prise en charge depuis le site Web de Microsoft. (#BG061690) Assistance clientèleService clientèleLe service clientèle d’Adobe propose une assistance sur les produits, la vente, l’enregistrement et d’autres sujets non techniques. Pour contacter le service clientèle d’Adobe, consultez la page du site correspondant à votre région ou pays et cliquez sur Contact.Options du programme de support et ressources techniquesSi vous avez besoin d’une assistance technique pour votre produit, notamment des informations sur l’assistance gratuite et prépayée, ainsi que les ressources de dépannage, vous trouverez plus de détails sur /go/support_fr. 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Nous vous proposons en permanence desoutils et des informations supplémentaires accessibles en ligne afin que vous disposiez des moyens adaptés pour résoudre vos problèmes dans les meilleurs délais.Si vous rencontrez un problème lors de l’installation ou la désinstallation d’une application Creative Suite 5, essayez de redémarrer votre ordinateur avant de contacter notre assistance. Pour obtenir de l’aide sur l’installation de la CS5, consultez le site/go/cs5install_fr.Autres ressourcesPour obtenir de l’aide, de l’assistance et des conseils, allez à/go/learn_FlashCatalyst_support_fr.Site Web d’AdobeAdobe TVPôle de création AdobePôle de développementForums d’utilisateursGroupes d’utilisateurs AdobeAdobe Marketplace & ExchangeFormationsProgramme de certification AdobeProgrammes de partenariat AdobeTrouver un centre de formation agréé Adobe© 2010 Adobe Systems Incorporated. Tous droits réservés.。
BVA303 305评估套件用户手册说明书
P r e l i m i n a r y M a n u a lEvaluation Kit User’s ManualDigital Variable Gain Amplifier(DVGA)BVA 303/305P r e l i m i n a r y M a n u a lTable of contentsIntroduction .................................................................................................................. 3 Applications Support ................................................................................................ 3 Evaluation Kit Contents and Requirements .................................................... 3 Kit Contents ................................................................................................................. 3 Software Requirements ................................................................................................. 3 Hardware Requirements ................................................................................................ 4 MCM BVA303/305 Evaluation Board Assembly ........................................... 5 Overview ..................................................................................................................... 5 Outline showing functional overview .............................................................................. 6 Hardware Operation ................................................................................................. 7 USB Interface Board .................................................................................................. 9 USB Interface Board Overview ........................................................................................ 9 Connection of the USB Interface Board to the Evaluation Board ......................................... 9 USB Driver Installation ................................................................................................... 9 EVK Software Installation ....................................................................................... 10 Using the Application Software Graphical User Interface ....................... 13 Evaluation Board Overview ..................................................................................... 16 Technical Resources .. (17)P r e l i m i n a r y M a n u a lIntroductionThe BVA303/305 is a gain amplifier with enhanced 6-bit RF Digital Step Attenuator(DVGA) designed for use in 3G/4G wireless infrastructure and other high performance RF applications. An integrated digital control interface supports both serial and parallel programming of the attenuation, including the capa-bility to program an initial attenuation state at power -up. Covering a 31.5 dB attenuation range in 0.5 dB steps, it maintains high linearity and low power consumption from 30~40MHz through 4 GHz. BVA-303/305 also features an external negative supply option, and is offered in a 24-lead 4x4 mm QFN package.The BVA303/305 Evaluation Kit (EVK) includes the application software and hardware required to con-trol and evaluate the functionality of the DVGA using a PC running the Windows operating system to control the USB interface boardApplication supportFor any technical inquiries regarding the evaluation kit or software, please visit applications support at (fastest response) or call (82)-2-568-2754.Evaluation Kit Contents and RequirementsKit ContentsThe BVA303/305 Evaluation Kit (EVK) includes all of the specific software and hardware required to evaluate the DVGA. Included in the EVK are:Software RequirementsThe application software will need to be installed on a computer with the following minimum require-ments:∙ PC compatible with Windows™ XP, Vista, 7, or 8 ∙ Mouse ∙ USB port∙ HTML browser with internet access ∙ Administrative privilegesP r e l i m i n a r y M a n u a lHardware RequirementsIn order to evaluate the DVGA(Digital Variable Gain Amplifier) performance of the evaluation board, the following equipment is required:DC power supplies and DC cables Signal Generator Spectrum AnalyzerVector network analyzerCAUTION: The BVA303/305 DVGA EVK contains components that might be damaged by exposure to voltages in excess of the specified voltage,including voltages produced by electrostatic discharges. Handle the board in accordance with procedures for handling static -sensitive components. Avoid applying excessive voltages to the power supply terminals or signal inputs or outputs.P r e l i m i n a r y M a n u a lMCM BVA303/305 Evaluation Board AssemblyOverviewThe Evaluation Board is assembled with a BVA303/305 DVGA, SP2T mechanical switch (P/S), Parallel Programming switches (D1~D6,LE), several headers, and SMA connectors. The P/S switch is used for Parallel or Serial mode selection. The D1~D6,LE switches are used for setting the control bits in Direct Parallel programming mode.Figure 1. MCM BVA303/305 Evaluation Board AssemblyP r e l i m i n a r y M a n u a lFigure 2. MCM BVA303/305 Evaluation Board Outline Showing Functional OverviewRF In(DSA Input)RF out(Amp output)P r e l i m i n a r y M a n u a lHardware Operation1. Verify that all DC power supplies are turned off before proceeding2. Connect the jumper on JP1, JP23. Position the P/S switch to Parallel or Serial mode4. Set jumpers of PUP1 (J7) and PUP2 (J8) to be “HIGH” at upper position and “LOW” at down position5. Set the D1~D6 and LE mechanical programming switches on board to support Direct Parallel, Latched Parallel, or Serial mode a. Place D1~D6 and LE at the middle position to support Latched Parallel and Serial modes with GUI application software and proper position of P/S switchb. In Direct Parallel mode , D1~D6 can be set to “HIGH” or “LOW” to manually program the attenuation state while LE is connected to “HIGH” without using the Mini USB Interface and GUI application software Table 1. SP3T Switch Descriptions6. Provide external power supply to the J4 connector (refer to the Operating Ranges table in the datasheet for the voltage range) a. VDD is the positive power supply with 3.0V typicalb. VDD_DIG is the positive power supply for control signals with 1.8V typical, and it can be connected to VDD with jumper on JP1 to simplify the test set -upc. VSS is the external negative power supply with –3.3V typical. To simplify the test set -up, it can also be shorted to GND with jumper on JP2 to enable using the internal negative voltage generatorRemark : In order to evaluate the DVGA of the evaluation board on parallel or serial mode, You should connect the USB cable to a PC. And then to supply an External power VDD or VDD_DIG to the evalua-tion board .P r e l i m i n a r y M a n u a lHOW to set the PUP1. Position the Parallel/Serial switch to Parallel mode2. Set the “LE” Switch to “Low”3. Set jumpers of PUP1 (J7) and PUP2 (J8) to be “HIGH” at upper position and “LOW” at down position as you need(refer to Table 2)Table 2. Parallel PUP Truth Table4. Provide external power supply(3.0V)P r e l i m i n a r y M a n u a lUSB Interface Board OverviewA USB interface board (Figure 3) is included in the Evaluation Kit. This board allows the user to send SPI commands to the device under test by using a PC running the Windows™ operating system. To install the software, extract the zip file to a temporary directory and follow the installation procedure included.USB Interface BoardConnection of the USB Interface Board to the Evaluation BoardThe Evaluation Board and the USB interfaceboard contain the 15 pin D -sub connector. This feature allows the USB interface board (socket) to connect directly to the Evaluation Board (pin) on the front -side as shown in Figure 4.Figure 3. USB interface boardFigure 4. DVGA USB Interface Board Connected to the BVA303/305 Evaluation Board for Latched Parallel and Serial ProgrammingUSB Driver InstallationThe latest USB interface board drivers areavailable via Microsoft Windows update. Internet connectivity is required to download the drivers. Connect the USB interface board to the PC and select the Windows Update option to obtain and install the drivers.If the USB board drivers are not installed,it will not be possible to run the program correctly. A USB interface board (Figure 5) is included in the Evaluation Kit. This software is available directly from FTDI’s website at/Drivers/VCP.htmFigure 5. USB Driver InstallationP r e l i m i n a r y M a n u a lEVK Software InstallationTo install the DVGA evaluation software, unzip the archive and execute the “setup.exe.”Figures 6(a-c). Application Software Installation ProcedureIn order to evaluate the BVA303/305 performance, the Application Software has to be installed on your computer.The USB interface and DVGA application software is compatible with computers running Windows™ XP, Vista, 7, or 8. This software is available directly from Berex’s website at/Products/Documents/Installers/DVGA%20Evaluation%20Software%20Installer%20R2.3.1.zipAfter the setup.exe file has been executed, a welcome screen will appear. It is stronglyrecommended that all programs be closed prior to running the install program. Click the “Next>” button to proceedP r e l i m i n a r y M a n u a lFor most users the default install location for the program files is sufficient. If a different location is desired, the install program can be directed to place the program files in an alternate location. The software is installed for “Everyone” by default. Once the desired location is selected click “Next >.”Figures 7(d-f). Application Software Installation ProcedureAs the software files are installed, a progress indicator will be displayed. On slower computers, installation of the software may proceed for a few moments.The Confirm Installation is ready to install theDVGA evaluation software on your computer, then click “Next>” to proceed with the software installation.P r e l i m i n a r y M a n u a lOnce the evaluation software is installed, click “Close” to exit.A new Start Menu item under PeregrineSemiconductor will appear in the start menu of your computer. Select “DVGA Evaluation Software” to launch the GUI.Figures 8(g). Application Software Installation ProcedureP r e l i m i n a r y M a n u a lFigure 9 displays the DVGA application software graphical user interface (GUI), which has the USB in-terface board plugged into the computer. If the USB interface board is not connected when the appli-cation software is launched, the message “No interface board connected! Please connect USB -SPI Interface #101-0695.” will appear at the bottom of the screen.In the upper left corner, under the Peregrine Logo there is a drop down menu item to select the part for evaluation and the part description is right below the part number box.Using the Application Software Graphical User InterfaceFigure 9. DVGA Application Software Graphical User Interface (GUI)P r e l i m i n a r y M a n u a lThe DVGA application software GUI supports Latched Parallel and Serial modes, and shows the control bit waveform at the right side of the GUI when the mode is selected.The Send button changes functionality based on the control interface mode. Send Latch in Latched Par-allel mode and Send Signal in Serial mode is provided to resend the programming bits to the device at the same attenuation state.Figure 10. Latched Parallel or Serial ModeContinuous Pattern Loop can be selected to automatically step through each of the attenuation states.The Attenuation Value box displays the attenuation value the DVGA is currently programmed. The user can enter the desired attenuation value followed by the “Enter” key to program the DVGA.P r e l i m i n a r y M a n u a lThe center of the GUI is the attenuation slide bar that allows the user to quickly select the desiredattenuation. The arrows at the top and bottom can be clicked to increase or decrease attenuation state at the minimum step size.P r e l i m i n a r y M a n u a lFigure 11. BVA303/305 Evaluation Board SchematicEvaluation Board OverviewP r e l i m i n a r y M a n u a lAdditional technical resources are available for download in the Products section at . These include the Product Specification datasheet, Evaluation Kit schematic and Bill of Materials, Mate-rial Declaration form, and PC -compatible software file.Trademarks are subject to trademark claims.Technical Resources。
IFRS 9_PART B
IFRS 9 IASB documents published to accompanyInternational Financial Reporting Standard 9Financial InstrumentsThe text of the unaccompanied IFRS 9 is contained in Part A of this edition. Its effective date is 1 January 2013. This part presents the following accompanying documents:page APPROVAL BY THE BOARD OF IFRS 9 ISSUED IN NOVEMBER 2009B604 BASIS FOR CONCLUSIONS B605 APPENDIXAmendments to the Basis for Conclusions on other IFRSs B637 DISSENTING OPINIONS B638 AMENDMENTS TO GUIDANCE ON OTHER IFRSs B643© IASCF B603IFRS 9Approval by the Board of IFRS 9 issued in November 2009 International Financial Reporting Standard 9 Financial Instruments was approved for issue by thirteen of the fifteen members of the International Accounting Standards Board. Mr Leisenring and Ms McConnell dissented from the issue of the IFRS. Their dissenting opinions are set out after the Basis for Conclusions.Sir David Tweedie ChairmanStephen CooperPhilippe DanjouJan EngströmPatrick FinneganRobert P GarnettGilbert GélardAmaro Luiz de Oliveira GomesPrabhakar KalavacherlaJames J LeisenringPatricia McConnellWarren J McGregorJohn T SmithTatsumi YamadaWei-Guo ZhangB604© IASCFIFRS 9 BC © IASCF B605C ONTENTSparagraphs BASIS FOR CONCLUSIONS ON IFRS 9 FINANCIAL INSTRUMENTSINTRODUCTIONBC1–BC4SCOPEBC5–BC7CLASSIFICATIONBC8–BC74Measurement categoriesBC10–BC18Approach to classificationBC19–BC52Embedded derivativesBC53–BC60Option to designate a financial asset at fair valueBC61–BC64Reclassification between fair value and amortised cost categoriesBC65–BC74MEASUREMENTBC75–BC89Gains and lossesBC82–BC89EFFECTIVE DATEBC90–BC95TRANSITIONBC96–BC117Transition reliefBC100–BC109Transitional disclosuresBC110–BC111Transition for future phasesBC112Transitional insurance issuesBC113–BC117SUMMARY OF MAIN CHANGES FROM THE EXPOSURE DRAFTBC118COST-BENEFIT CONSIDERATIONSBC119–BC123APPENDIXAmendments to the Basis for Conclusions on other IFRSsDISSENTING OPINIONSIFRS 9 BCBasis for Conclusions onIFRS 9 Financial InstrumentsThis Basis for Conclusions accompanies, but is not part of, IFRS 9.IntroductionBC1This Basis for Conclusions summarises the International Accounting Standards Board’s considerations in developing IFRS 9 Financial Instruments. Individual Board members gave greater weight to some factors than to others.BC2The Board has long acknowledged the need to improve the requirements for financial reporting of financial instruments to make it easier for users of financial statements to understand financial reporting information. To meet the heightened urgency of that need in the light of the financial crisis, the Board proposes to replace IAS 39 Financial Instruments: Recognition and Measurement by the end of 2010. To make progress as quickly as possible the Board has divided the project into several phases. In adopting this approach, the Board acknowledged the difficulties that might be created by differences in timing between this project and others, in particular phase II of the project on insurance contracts.(Paragraphs BC91(b), BC93 and BC113–BC117 discuss issues relating to insurance contracts.)BC3IFRS 9 is a new standard dealing with the accounting for financial instruments.In developing IFRS 9, the Board considered the responses to its exposure draft Financial Instruments: Cl assification and Measurement, published in July 2009. As a result, in November 2009 the Board finalised the first part of IFRS 9, dealing with classification and measurement of financial assets. In the Board’s view, requirements on classification and measurement are the foundation for any financial reporting standard, and requirements on associated matters (for example, on impairment and hedge accounting) have to reflect those requirements. In addition, the Board noted that many of the application issues that have arisen in the financial crisis are related to the classification and measurement of financial assets in accordance with IAS 39.BC4The Board sees this first phase of the project to replace IAS 39 as a stepping stone to future improvements in the financial reporting of financial instruments and is committed to completing its project on financial instruments expeditiously.The Board is also committed to the convergence of IFRSs and US GAAP requirements for financial instruments. There are many detailed differences between them, making it impossible to achieve convergence on the basis of existing requirements. The Board will consider publishing for comment any proposals that the US Financial Accounting Standards Board (FASB) may publish, to the extent that they are different from IFRSs or proposed IFRSs.ScopeBC5The Board has not yet considered the scope of IFRS 9. The scope of IAS 39 and its interaction with other IFRSs have resulted in some application and interpretation issues. However, the Board believes that it should address the issue of scope comprehensively rather than only in the context of classification and B606© IASCFIFRS 9 BC measurement. The scope of IAS 39 has not been raised as a matter of concern during the financial crisis and, hence, the Board believes that the scope of IFRS 9 should be based on that of IAS 39 until it considers the scope more generally in a later phase of the project to replace IAS 39.BC6The exposure draft contained proposals for all items within the scope of IAS 39.However, some respondents to the exposure draft said that the Board should restrict its proposals on classification and measurement to financial assets and retain the existing requirements for financial liabilities (including the requirements for embedded derivatives and the fair value option) until the Board has more fully considered and debated the issues relating to financial liabilities.Those respondents pointed out that the Board accelerated its project on financial instruments because of the global financial crisis, which placed more emphasis on issues in the accounting for financial assets than for financial liabilities. They suggested that the Board should consider issues that arise from its projects on own credit risk and other related projects more fully before finalising the requirements for classification and measurement of financial liabilities.BC7The Board noted those concerns and decided that IFRS 9 should at this stage apply only to assets within the scope of IAS 39. Thus, financial liabilities, including derivative liabilities, remain within the scope of IAS 39. Accordingly, this Basis for Conclusions discusses the responses to the exposure draft as they apply to the classification and measurement of financial assets. Taking this course will enable the Board to obtain further feedback on the accounting for financial liabilities, including how best to address accounting for changes in own credit risk. ClassificationBC8In IFRS 9 the Board aimed to improve the ability of users to understand the financial reporting of financial assets by:(a)reducing the number of classification categories and providing a clearerrationale for measuring financial assets in a particular way that replacesthe numerous categories in IAS 39, each of which has specific rulesdictating how an asset can or must be classified;(b)applying a single impairment method to all financial assets not measuredat fair value, which replaces the many different impairment methods thatare associated with the numerous classification categories in IAS 39; and(c)aligning the measurement attribute of financial assets to the way theentity manages its financial assets (‘business model’) and their contractualcash flow characteristics, thus providing relevant and useful informationto users for their assessment of the amounts, timing and uncertainty of theentity’s future cash flows.BC9The Board believes that IFRS 9 both improves the ability of users to understand and use the financial reporting of financial assets and eliminates much of the complexity in IAS 39. The Board disagrees with the assertion made by a dissenting Board member that IFRS 9 does not meet the objective of reducing the number of classification categories for financial assets and eliminating the specific rules associated with those categories. Unlike IAS 39, IFRS 9 provides a clear rationale for© IASCF B607IFRS 9 BCmeasuring a financial asset at either amortised cost or fair value, and hence improves the ability of users to understand the financial reporting of financial assets. IFRS 9 aligns the measurement attribute of financial assets to the way the entity manages its financial assets (‘business model’) and their contractual cash flow characteristics. In so doing, IFRS 9 significantly reduces complexity by eliminating the numerous rules associated with each classification category in IAS39. Consistently with all other financial assets, hybrid contracts with financial asset hosts are classified and measured in their entirety, thereby eliminating the complex and rule-based requirements in IAS 39 for embedded derivatives.Furthermore, IFRS 9 requires a single impairment method, which replaces the different impairment methods associated with the many classification categories in IAS 39. The Board believes that these changes will improve the ability of users to understand the financial reporting of financial assets and to better assess the amounts, timing and uncertainty of future cash flows.Measurement categoriesBC10Some users of financial statements support a single measurement method—fair value—for all financial assets. They view fair value as more relevant than other measurements in helping them to assess the effect of current economic events on an entity. They assert that having one measurement attribute for all financial assets promotes consistency in valuation, presentation and disclosure and improves the usefulness of financial statements.BC11However, many users and others, including many preparers and auditors of financial statements and regulators, do not support the recognition in the statement of comprehensive income of changes in fair value for financial assets that are not held for trading or are not managed on a fair value basis. Some users say that they often value an entity on the basis of its business model and that in some circumstances cost-based information provides relevant information that can be used to predict likely actual cash flows.BC12Some, including some of those who generally support the broad application of fair value for financial assets, raise concerns about the use of fair value when fair value cannot be determined within a narrow range. Those views were consistent with the general concerns raised during the financial crisis. Many also believe that other issues, including financial statement presentation, need to be addressed before a comprehensive fair value measurement requirement would be feasible.BC13In response to those views, the Board decided that measuring all financial assets at fair value is not the most appropriate approach to improving the financial reporting for financial instruments. Accordingly, the exposure draft proposed that entities should classify financial assets into two primary measurement categories: amortised cost and fair value (the ‘mixed attribute approach’).The Board noted that both of those measurement methods can provide useful information to users of financial statements for particular types of financial assets in particular circumstances.BC14Almost all respondents to the exposure draft supported the mixed attribute approach, stating that amortised cost provides relevant and useful information about particular financial assets in particular circumstances because it provides information about the entity’s likely actual cash flows. Some respondents said B608© IASCFIFRS 9 BC that fair value does not provide such information because it assumes that thefinancial asset is sold or transferred on the measurement date.BC15Accordingly, IFRS 9 requires some financial assets to be measured at amortised cost if particular conditions are met.Fair value information in the statements of financial position andfinancial performanceBC16Some respondents to the exposure draft proposed that fair value information should be presented in the statement of financial position for financial assetsmeasured at amortised cost. Some of those supporting such presentation said thatthe information provided would be more reliable and timely if it were required tobe presented in the statement of financial position rather than in the notes.BC17The Board also considered whether the total gains and losses for the period related to fair value measurements in Level 3 of the fair value measurementhierarchy (paragraph 27A of IFRS 7 Financial Instruments: Disclosures describes thelevels in the fair value hierarchy) should be presented separately in the statementof comprehensive income. Those supporting such presentation said that itsprominence would draw attention to how much of the total fair value gain or lossfor the period was attributable to fair value measurements that are subject tomore measurement uncertainty.BC18The Board decided that it would reconsider both issues at a future date. The Board noted that the Level 3 gains or losses for the period are required to be disclosed inthe notes to the financial statements in accordance with IFRS 7. The Board alsonoted that neither proposal had been exposed for public comment and furtherconsultation was required. The Board decided that these two issues should formpart of convergence discussions with the FASB.Approach to classificationBC19The exposure draft proposed that an entity should classify its financial assets into two primary measurement categories on the basis of the financial assets’characteristics and the entity’s business model for managing them. Thus, afinancial asset would be measured at amortised cost if two conditions were met:(a)the financial asset has only basic loan features; and(b)the financial asset is managed on a contractual yield basis.A financial asset that did not meet both conditions would be measured at fair value. BC20Most respondents supported classification based on the contractual terms of the financial asset and how an entity manages groups of financial assets. Althoughthey agreed with the principles proposed in the exposure draft, some did notagree with the way the approach was described and said that more applicationguidance was needed, in particular to address the following issues:(a)the order in which the two conditions are considered;(b)how the ‘managed on a contractual yield basis’ condition should beapplied; and(c)how the ‘basic loan features’ condition should be applied.© IASCF B609IFRS 9 BCBC21Most respondents agreed that the two conditions for determining how financial assets are measured were necessary. However, many questioned the order in which the two conditions should be considered. The Board agreed with those comment letters that stated that it would be more efficient for an entity to consider the business model condition first. Therefore, the Board clarified that entities would consider the business model first. However, the Board noted that the contractual cash flow characteristics of any financial asset within a business model that has the objective of collecting contractual cash flows must also be assessed to ensure that amortised cost provides relevant information to users.The entity’s business modelBC22The Board concluded that an entity’s business model affects the predictive quality of contractual cash flows—ie whether the likely actual cash flows will result primarily from the collection of contractual cash flows. Accordingly, the exposure draft proposed that a financial asset should be measured at amortised cost only if it is ‘managed on a contractual yield basis’. This condition was intended to ensure that the measurement of a financial asset provides information that is useful to users of financial statements in predicting likely actual cash flows.BC23Almost all respondents to the exposure draft agreed that classification and measurement should reflect how an entity manages its financial assets. However, most expressed concern that the term ‘managed on a contractual yield basis’would not adequately describe that principle and that more guidance was needed.BC24In August 2009 the FASB posted on its website a description of its tentative approach to classification and measurement of financial instruments. That approach also considers the entity’s business model. Under that approach, financial instruments would be measured at fair value through profit or loss unless:... an entity’s business strategy is to hold debt instruments with principal amounts forcollection or payment(s) of contractual cash flows rather than to sell or settle thefinancial instruments with a third party ...The FASB also provided explanatory text:... an entity’s business strategy for a financial instrument would be evaluated basedon how the entity manages its financial instruments rather than based on the entity’sintent for an individual financial instrument. The entity also would demonstrate thatit holds a high proportion of similar instruments for long periods of time relative totheir contractual terms.BC25The Board had intended ‘managed on a contractual yield basis’ to describe a similar condition. However, it decided not to use the FASB’s proposed guidance because the additional guidance included would still necessitate significant judgement. In addition, the Board noted that the FASB’s proposed approach might be viewed as very similar to the notion of ‘held to maturity’ in IAS 39, which could result in ‘bright line’ guidance on how to apply it. Most respondents believed the Board should avoid such bright lines and that an entity should be required to exercise judgement.B610© IASCFIFRS 9 BC BC26Therefore, in response to the concerns noted in paragraph BC23, the Board clarified the condition by requiring an entity to measure a financial asset at amortised cost only if the objective of the entity’s business model is to hold the financial asset to collect the contractual cash flows. The Board also clarified in the application guidance that:(a)it is expected that an entity may sell some financial assets that it holdswith an objective of collecting the contractual cash flows. Very fewbusiness models entail holding all instruments until maturity. However,frequent buying and selling of financial assets is not consistent with abusiness model of holding financial assets to collect contractual cash flows.(b)an entity needs to use judgement to determine at what level this conditionshould be applied. That determination is made on the basis of how anentity manages its business. It is not made at the level of an individualfinancial asset.BC27The Board noted that an entity’s business model does not relate to a choice (ie it is not a voluntary designation) but rather it is a matter of fact that can be observed by the way an entity is managed and information is provided to its management. BC28For example, if an investment bank uses a trading business model, it could not easily become a savings bank that uses an ‘originate and hold’ business model.Therefore, a business model is very different from ‘management intentions’which can relate to a single instrument. The Board concluded that sales or transfers of financial instruments before maturity would not be inconsistent witha business model with an objective of collecting contractual cash flows, as long assuch transactions were consistent with that business model, rather than with a business model that has the objective of realising changes in fair values.Contractual cash flow characteristicsBC29The exposure draft proposed that only financial instruments with basic loan features could be measured at amortised cost. It specified that a financial instrument has basic loan features if its contractual terms give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. For the purposes of this condition, interest is consideration for the time value of money and the credit risk associated with the principal amount outstanding during a particular period of time, which may include a premium for liquidity risk.BC30The objective of the effective interest method for financial instruments measured at amortised cost is to allocate interest revenue or expense to the relevant period.Cash flows that are interest always have a close relation to the amount advanced to the debtor (the ‘funded’ amount) because interest is consideration for the time value of money and the credit risk associated with the issuer of the instrument and with the instrument itself. The Board noted that the effective interest method is not an appropriate method to allocate cash flows that are not principal or interest on the principal amount outstanding. The Board concluded that if a financial asset contains contractual cash flows that are not principal or interest on the principal amount outstanding then a valuation overlay to contractual cash flows (fair value) is required to ensure that the reported financial information provides useful information.© IASCF B611IFRS 9 BCBC31Most respondents to the exposure draft agreed with the principle that classification should reflect the contractual terms of the financial asset. However, many objected to the label ‘basic loan features’ and requested more guidance to apply the principle to particular financial assets. Respondents were also concerned that the exposure draft did not discuss ‘immaterial’ or ‘insignificant’features that they believed ought not to affect classification.BC32The Board decided to clarify how contractual cash flow characteristics should affect classification and improve the examples that illustrate how the condition should be applied. It decided not to add application guidance clarifying that the notion of materiality applies to this condition, because that notion applies to every item in the financial statements. However, it did add application guidance that a contractual cash flow characteristic does not affect the classification of a financial asset if it is ‘not genuine’.Application of the two classification conditions to particular financial assetsInvestments in contractually linked instruments (tranches)BC33 A structured investment vehicle may issue different tranches to create a ‘waterfall’ structure that prioritises the payments by the issuer to the holders of the different tranches. In typical waterfall structures, multiple contractually linked instruments effect concentrations of credit risk in which payments to holders are prioritised. Such structures specify the order in which any losses that the issuer incurs are allocated to the tranches. The exposure draft concluded that tranches providing credit protection (albeit on a contingent basis) to other tranches are leveraged because they expose themselves to higher credit risk by writing credit protection to other tranches. Hence their cash flows do not represent solely payments of principal and interest on the principal amount outstanding. Thus, only the most senior tranche could have basic loan features and might qualify for measurement at amortised cost, because only the most senior tranche would receive credit protection in all situations.BC34The exposure draft proposed that the classification principle should be based on whether a tranche could provide credit protection to any other tranches in any possible scenario. In the Board’s view, a contract that contains credit concentration features that create ongoing subordination (not only in a liquidation scenario) would include contractual cash flows that represent a premium for providing credit protection to other tranches. Only the most senior tranche does not receive such a premium.BC35In proposing this approach, the Board concluded that subordination in itself should not preclude amortised cost measurement. The ranking of an entity’s instruments is a common form of subordination that affects almost all lending transactions. Commercial law (including bankruptcy law) typically sets out a basic ranking for creditors. This is required because not all creditors’ claims are contractual (eg claims regarding damages for unlawful behaviour and for tax liabilities or social insurance contributions). Although it is often difficult to determine exactly the degree of leverage resulting from this subordination, the Board believes that it is reasonable to assume that commercial law does not intend to create leveraged credit exposure for general creditors such as trade B612© IASCFIFRS 9 BC creditors. Thus, the Board believes that the credit risk associated with general creditors does not preclude the contractual cash flows representing the payments of principal and interest on the principal amount outstanding. Consequently, the credit risk associated with any secured or senior liabilities ranking above general creditors should also not preclude the contractual cash flows from representing payments of principal and interest on the principal amount outstanding.BC36Almost all respondents disagreed with the approach in the exposure draft for investments in contractually linked instruments for the following reasons:(a)It focused on form and legal structure rather than the economiccharacteristics of the financial instruments.(b)It would create structuring opportunities because of the focus on theexistence of a waterfall structure, without consideration of thecharacteristics of the underlying instruments.(c)It would be an exception to the overall classification model, driven byanti-abuse considerations.BC37In particular, respondents argued that the proposals in the exposure draft would conclude that some tranches provide credit protection and therefore were ineligible for measurement at amortised cost, even though that tranche might have a lower credit risk than the underlying pool of instruments that would themselves be eligible for measurement at amortised cost.BC38The Board did not agree that the proposals in the exposure draft were an exception to the overall classification model. In the Board’s view, those proposals were consistent with many respondents’ view that any financial instrument that creates contractual subordination should be subject to the proposed classification criteria and no specific guidance should be required to apply the classification approach to these instruments. However, it noted that, for contractually linked instruments that effect concentrations of credit risk, many respondents did not agree that the contractual cash flow characteristics determined by the terms and conditions of the financial asset in isolation best reflected the economic characteristics of that financial asset.BC39Respondents proposed other approaches in which an investor ‘looks through’ to the underlying pool of instruments of a waterfall structure and measures the instruments at fair value if looking through is not possible. They made the following points:(a)Practicability: The securitisation transactions intended to be addressed weregenerally over-the-counter transactions in which the parties involved hadsufficient information about the assets to perform an analysis of theunderlying pool of instruments.(b)Complexity: Complex accounting judgement was appropriate to reflect thecomplex economic characteristics of the instrument. In particular, in orderto obtain an understanding of the effects of the contractual terms andconditions, an investor would have to understand the underlying pool ofinstruments. Also, requiring fair value measurement if it were notpracticable to look through to the underlying pool of instruments wouldallow an entity to avoid such complexity.© IASCF B613。
ANSI ISA RP12.06.01-2003 Recommended Practice for Wiring Methods-Part 1
Recommended Practice forWiring Methods forR E C O M M E N D E D P R A C T I C EANSI/ISA-RP12.06.01-2003Recommended Practice for Wiring Methods for Hazardous (Classified) Locations Instrumentation Part 1: Intrinsic SafetyISBN: 1-55617-865-4Copyright © 2003 by ISA —The Instrumentation, Systems, and Automation Society. All rights reserved. Not for resale. Printed in the United States of America. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means (electronic mechanical, photocopying, recording, or otherwise), without the prior written permission of the Publisher.ISA67 Alexander DriveP.O. Box 12277Research Triangle Park, North Carolina 27709ANSI/ISA-RP12.06.01-2003 ——3PrefaceThis preface, as well as all footnotes and annexes, is included for information purposes and is not part of ANSI/ISA-RP12.06.01-2003.This document has been prepared as part of the service of ISA⎯the Instrumentation, Systems, and Automation Society⎯toward a goal of uniformity in the field of instrumentation. To be of real value, this document should not be static but should be subject to periodic review. Toward this end, the Society welcomes all comments and criticisms and asks that they be addressed to the Secretary, Standards and Practices Board; ISA; 67 Alexander Drive; P. O. Box 12277; Research Triangle Park, NC 27709; Telephone (919) 549-8411; Fax (919) 549-8288; E-mail: standards@.The ISA Standards and Practices Department is aware of the growing need for attention to the metric system of units in general, and the International System of Units (SI) in particular, in the preparation of instrumentation standards. The Department is further aware of the benefits to USA users of ISAstandards of incorporating suitable references to the SI (and the metric system) in their business and professional dealings with other countries. Toward this end, this Department will endeavor to introduceSI-acceptable metric units in all new and revised standards, recommended practices, and technicalreports to the greatest extent possible. Standard for Use of the International System of Units (SI): The Modern Metric System, published by the American Society for Testing & Materials as IEEE/ASTM SI 10-97, and future revisions, will be the reference guide for definitions, symbols, abbreviations, andconversion factors.It is the policy of ISA to encourage and welcome the participation of all concerned individuals andinterests in the development of ISA standards, recommended practices, and technical reports. Participation in the ISA standards-making process by an individual in no way constitutes endorsement bythe employer of that individual, of ISA, or of any of the standards, recommended practices, and technical reports that ISA develops.CAUTION — ISA ADHERES TO THE POLICY OF THE AMERICAN NATIONAL STANDARDS INSTITUTE WITH REGARD TO PATENTS. IF ISA IS INFORMED OF AN EXISTING PATENT THAT IS REQUIRED FOR USE OF THE DOCUMENT, IT WILL REQUIRE THE OWNER OF THE PATENT TO EITHER GRANT A ROYALTY-FREE LICENSE FOR USE OF THE PATENT BY USERS COMPLYING WITH THE DOCUMENT OR A LICENSE ON REASONABLE TERMS AND CONDITIONS THAT ARE FREE FROM UNFAIR DISCRIMINATION.EVEN IF ISA IS UNAWARE OF ANY PATENT COVERING THIS DOCUMENT, THE USER IS CAUTIONED THAT IMPLEMENTATION OF THE DOCUMENT MAY REQUIRE USE OF TECHNIQUES, PROCESSES, OR MATERIALS COVERED BY PATENT RIGHTS. ISA TAKES NO POSITION ON THE EXISTENCE OR VALIDITY OF ANY PATENT RIGHTS THAT MAY BE INVOLVED IN IMPLEMENTING THE DOCUMENT. ISA IS NOT RESPONSIBLE FOR IDENTIFYING ALL PATENTS THAT MAY REQUIRE A LICENSE BEFORE IMPLEMENTATION OF THE DOCUMENT OR FOR INVESTIGATING THE VALIDITY OR SCOPE OF ANY PATENTS BROUGHT TO ITS ATTENTION. THE USER SHOULD CAREFULLY INVESTIGATE RELEVANT PATENTS BEFORE USING THE DOCUMENT FOR THE USER’S INTENDED APPLICATION.HOWEVER, ISA ASKS THAT ANYONE REVIEWING THIS DOCUMENT WHO IS AWARE OF ANY PATENTS THAT MAY IMPACT IMPLEMENTATION OF THE DOCUMENT NOTIFY THE ISA STANDARDS AND PRACTICES DEPARTMENT OF THE PATENT AND ITS OWNER.ADDITIONALLY, THE USE OF THIS DOCUMENT MAY INVOLVE HAZARDOUS MATERIALS, OPERATIONS OR EQUIPMENT. THE DOCUMENT CANNOT ANTICIPATE ALL POSSIBLE APPLICATIONS OR ADDRESS ALL POSSIBLE SAFETY ISSUES ASSOCIATED WITH USE IN HAZARDOUS CONDITIONS. THE USER OF THIS DOCUMENT MUST EXERCISE SOUND PROFESSIONAL JUDGMENT CONCERNING ITS USE AND APPLICABILITY UNDER THE USER’SANSI/ISA-RP12.06.01-2003 — 4 —PARTICULAR CIRCUMSTANCES. THE USER MUST ALSO CONSIDER THE APPLICABILITY OF ANY GOVERNMENTAL REGULATORY LIMITATIONS AND ESTABLISHED SAFETY AND HEALTH PRACTICES BEFORE IMPLEMENTING THIS DOCUMENT.THE USER OF THIS DOCUMENT SHOULD BE AWARE THAT THIS DOCUMENT MAY BE IMPACTED BY ELECTRONIC SECURITY ISSUES. THE COMMITTEE HAS NOT YET ADDRESSED THE POTENTIAL ISSUES IN THIS VERSION.The following people served as voting members of ISA Subcommittee SP12.6:NAME COMPANY D. Bishop, Managing Director ConsultantR. Masek, Chair CSA InternationalN. Abbatiello Eastman Kodak Co.R. Allen Honeywell Inc.W. Bennett Pepperl + Fuchs Inc.K. Boegli Phoenix Contact Inc.C. Bombria ConsultantJ. Bossert Hazloc Inc.R. Cardinal Bently Nevada LLCA. Engler EGS Electrical GroupT. Feindel R. Stahl Inc.W. Fiske Intertek Testing ServicesL Goettsche ConsultantB. Larson Turck Inc.J. Miller Detector Electronics Corp.A. Mobley 3M Co.O. Murphy Brooks InstrumentsE. Olson Ellis Engineering Co.J. Oudar ExLoc Corp.A. Page MSHA Approval & Certification CenterB. Schaefer Underwriters Laboratories Inc.P. Schimmoeller CSA InternationalT. Schnaare Rosemount Inc.D. Wechsler Dow Chemical Co.C. Wellman DuPont EngineeringThe following people served as voting members of ISA Committee SP12:NAME COMPANY T. Schnaare, Chair Rosemount Inc.W. Lawrence, Vice Chair FM ApprovalsD. Bishop, Managing Director ConsultantN. Abbatiello Eastman Kodak CompanyD. Ankele Underwriters Laboratories Inc.B. Apel MSA InstrumentA. Ballard Crouse Hinds Division of Cooper IndustriesW. Bennett Pepperl + Fuchs Inc.K. Boegli Phoenix Contact Inc.R. Brodin Fisher Controls Intl. Inc.R. Buschart PC & E Inc.R. Cardinal Bently Nevada Corp.C. Casso Schlumberger Oilfield ServicesM. Coppler Ametek Inc.J. Cospolich Waldemar S. Nelson & Company Inc.ANSI/ISA-RP12.06.01-2003 ——5J. Costello Henkel CorporationS. Czaniecki Intrinsic Safety Concepts Inc.T. Dubaniewicz NIOSHU. Dugar Mobil Chemical CompanyA Engler EGS Electrical GroupT. Feindel R. Stahl Inc.W. Fiske Intertek Testing ServicesG. Garcha GE Power SystemsD. Jagger 9 Darnton GardensF. Kent Honeywell Inc.J. Kuczka KillarkB. Larson Turck Inc.E. Magison ConsultantR. Masek ABB AutomationA. Mobley 3M CompanyA. Page MSHA Approval & Certification CenterJ. Propst Equilon EnterprisesP. Schimmoeller CSA InternationalD. Wechsler Dow Chemical CompanyC. Wellman DuPont EngineeringThis document was approved for publication by the ISA Standards and Practices Board on 22 October 2002.NAME COMPANYM. Zielinski, Chair Emerson Process ManagementD. Bishop David N Bishop, ConsultantD. Bouchard PapricanM. Cohen ConsultantM. Coppler Ametek, Inc.B. Dumortier Schneider ElectricW. Holland Southern CompanyE. Icayan ACES IncA. Iverson Ivy OptiksR. Jones Dow Chemical CompanyV. Maggioli Feltronics CorporationT. McAvinew ForeRunner CorporationA. McCauley, Jr. Chagrin Valley Controls, Inc.G. McFarland Westinghouse Process Control Inc.R. Reimer Rockwell AutomationJ. Rennie Factory Mutual Research CorporationH. Sasajima Yamatake CorporationI. Verhappen Syncrude Canada Ltd.R. Webb POWER EngineersW. Weidman Parsons Energy & Chemicals GroupJ. Weiss KEMA ConsultingM. Widmeyer Stanford Linear Accelerator CenterC. Williams Eastman Kodak CompanyG. Wood Graeme Wood ConsultingThis page intentionally left blank.——ANSI/ISA-RP12.06.01-20037Table of Contents Preface (3)1 Purpose (9)2 Scope (9)3 Definitions (9)4 Article 504 and 505 of the NEC (ANSI/NFPA 70-2002) with explanation (14)5 Guidelines for combinations of apparatus under the entity concept (44)andinspection (46)6 MaintenanceAnnex A — Explanatory notes (49)Annex B — Wiring in hazardous (classified) locations (53)Annex C — Marking for the zone classification system (55)Annex D — References (57)This page intentionally left blank.ANSI/ISA-RP12.06.01-2003—9—1 Purpose1.1 This recommended practice is intended to promote the uniform installation of intrinsically safe systems for hazardous (classified) locations. Information is provided to clarify and explain the requirements of Articles 504 and 505 of the National Electrical Code ®(NEC ®) ANSI/NFPA 70. (For further information, see Annex A.)NOTE ⎯ Throughout clause 3 and 4, text that has been excerpted from the National Electrical Code ® (NEC ® ) is distinguished from the main body of text as follows:• NEC® Article 500, 504 and 505 text is shaded and indented at the left and right margins.excerptedNEC®text (such as articles on sealing) is shaded but not indented.• OtherText from the National Electrical Code ® (NEC ®) is reprinted with permission from NFPA 70-2002, the National Electrical Code ®, Copyright© 2001, National Fire Protection Association, Quincy, MA 02269.National Electrical Code ® and NEC ® are registered trademarks of the National Fire Protection Association, Inc., Quincy, MA 02269.1.2 This recommended practice applies to the installation of intrinsically safe systems for use in hazardous (classified) locations.2 Scope2.1 This recommended practice provides guidance to those who design, install, and maintain intrinsically safe systems for hazardous (classified) locations.2.2 This recommended practice should be used in conjunction with nationally recognized codes that cover wiring practices — such as the National Electrical Code ®(NEC ®), ANSI/NFPA 70, and the Canadian Electrical Code (CEC) Part I, CSA C22.1.2.3 This recommended practice is not intended to:a) include guidance for designing, testing, or repairing intrinsically safe or associated apparatus; orb) apply to the use of portable equipment, except as shown on the control drawing.3 DefinitionsFor purposes of this recommended practice, the following definitions apply:3.1 approved:acceptable to the authority having jurisdiction (for additional information, see NEC ® Article 100).3.2 associated apparatus:Associated Apparatus: Apparatus in which the circuits are not necessarily intrinsicallysafe themselves, but that affect the energy in the intrinsically safe circuits and are reliedon to maintain intrinsic safety. Associated apparatus may be either of the following:—10ANSI/ISA-RP12.06.01-2003 —1. Electrical apparatus that has an alternative-type protection for use in the appropriatehazardous (classified) location, or2. Electrical apparatus not so protected that shall not be used within a hazardous(classified) location.FPN No. 1: Associated apparatus has identified intrinsically safe connections forintrinsically safe apparatus and also may have connections for nonintrinsically safeapparatus.FPN No. 2: An example of associated apparatus is an intrinsic safety barrier, which is anetwork designed to limit the energy (voltage and current) available to the protectedcircuit in the hazardous (classified) location, under specified fault conditions.3.3 authority having jurisdiction (AHJ):the organization, office, or individual responsible for approving equipment, materials, an installation, or a procedure.3.4 channel:an ungrounded conductor in a grounded intrinsically safe circuit, or a conductor and its reference in a galvanically isolated intrinsically safe circuit.3.5 controldrawing:Control Drawing: A drawing or other document provided by the manufacturer of theintrinsically safe or associated apparatus, or of the nonincendive field wiring apparatus orassociated nonincendive field wiring apparatus, that details the allowed interconnectionsbetween the intrinsically safe and associated apparatus or between the nonincendivefield wiring apparatus or associated nonincendive field wiring apparatus.3.6 corrective maintenance:any maintenance activity that is not normal in the operation of equipment and requires access to the equipment's interior. Such activities are expected to be performed by qualified personnel who are aware of the hazards involved. Such activities typically include locating causes of faulty performance, replacement of defective components (see 6.2.1), adjustment of internal controls, and the like. Corrective maintenance is referred to simply as maintenance in clause 6.3.7 different intrinsically safe circuits:Different Intrinsically Safe Circuits: Intrinsically safe circuits in which the possibleinterconnections have not been evaluated and identified as intrinsically safe.3.8 entity evaluation:a method used to determine acceptable combinations of intrinsically safe apparatus and connected associated apparatus that have not been investigated in such combination.3.8.1 Entity parameters for intrinsically safe apparatus:C i : Total equivalent internal capacitance of the apparatus that is considered as appearingacross the connection facilities of the apparatus.I i or I max : Maximum current (peak a.c. or d.c.) that can be applied to the connection facilities of theintrinsically safe apparatus circuits without invalidating intrinsic safety. The maximuminput current may be different for different terminals.L i : Total equivalent internal inductance of the apparatus that is considered as appearing across the connection facilities of the apparatus.L i/R i: The maximum value of ratio of inductance to resistance that is considered as appearing across the terminals of the intrinsically safe apparatus.P i: Maximum power in an external intrinsically safe circuit that can be applied to the connection facilities of the apparatus. The maximum input power may be different fordifferent terminals.U i or V max : Maximum voltage (peak a.c. or d.c.) that can be applied to the connection facilities of the apparatus without invalidating the type of protection. The maximum input voltage may bedifferent for different terminals.3.8.2 Entity parameters for associated apparatus:C o or C a : Maximum capacitance in an intrinsically safe circuit that can be connected to theconnection facilities of the apparatus.I o. or I sc : Maximum current (peak a.c. or d.c.) in an intrinsically safe circuit that can be taken fromthe connection facilities of the apparatus.L o or L a : Maximum inductance in an intrinsically safe circuit that can be connected to the connection facilities of the apparatus.L o/R o or L a/R a: The maximum value of ratio of inductance to resistance that may be connected to the intrinsically safe circuit of the associated apparatus.P o : Maximum electrical power in an intrinsically safe circuit that can be taken from the apparatus.U o or V oc : Maximum output voltage (peak a.c. or d.c.) in an intrinsically safe circuit that can appear under open-circuit conditions at the connection facilities of the apparatus.3.8.3 Additional entity parameters for associated apparatus with multiple channels may include the following:I t : The maximum DC or peak AC current that can be drawn from any combination ofterminals of a multiple-channel associated apparatus configuration.V t : The maximum DC or peak AC open circuit voltage that can appear across anycombination of terminals of a multiple-channel associated apparatus configuration.3.9 galvanic isolation:the transfer of electrical power or signal from one circuit to another by means that do not include a direct electrical connection (e.g., through an isolating transformer or optical coupler).3.10 hazardous (classified) location:a location in which fire or explosion hazards may exist due to flammable gases or vapors, flammable liquids, combustible dust, or ignitable fibers or flyings.3.11 identified:Identified (as applied to equipment). Recognizable as suitable for the specificpurpose, function, use, environment, application, and so forth, where described in aparticular Code requirement.FPN: Some examples of ways to determine suitability of equipment for a specificpurpose, environment, or application include investigations by a qualified testinglaboratory (listing and labeling), an inspection agency, or other organizationsconcerned with product evaluation.3.12 intrinsic safety:a type of protection in which a portion of the electrical system contains only intrinsically safe equipment (apparatus, circuits, and wiring) that is incapable of causing ignition in the surrounding atmosphere. No single device or wiring is intrinsically safe by itself (except for battery-operated, self-contained apparatus such as portable pagers, transceivers, gas detectors, etc., which are specifically designed as intrinsically safe, self-contained devices), but is intrinsically safe only when employed in a properly designed intrinsically safe system. Also see "associated apparatus."3.13 intrinsic safety barrier:a network designed to limit the energy (voltage and current) available to the protected circuit in the hazardous (classified) location, under specified fault conditions (see ISA 12.01.01).3.14 intrinsic safety ground system:a grounding system that has a dedicated conductor isolated from the power system, except at one point, so that ground currents will not normally flow, and that is reliably connected to a grounding electrode in accordance with Article 250 of the NEC ®.3.15 intrinsically safe apparatus:Intrinsically Safe Apparatus: Apparatus in which all the circuits are intrinsically safe.3.16 intrinsically safe circuit:Intrinsically Safe Circuit: A circuit in which any spark or thermal effect is incapable ofcausing ignition of a mixture of flammable or combustible material in air under prescribedtest conditions.FPN: Test conditions are described in ANSI/UL 913-1997 Standard for Safety,Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III,Division 1, Hazardous (Classified) Locations.3.17 intrinsically safe systems:Intrinsically Safe System: An assembly of interconnected intrinsically safe apparatus,associated apparatus, and interconnecting cables in that those parts of the system thatmay be used in hazardous (classified) locations are intrinsically safe circuits.FPN: An intrinsically safe system may include more than one intrinsically safe circuit.3.18 labeled:equipment or materials to which has been attached a label, symbol, or other identifying mark of an organization that is acceptable to the authority having jurisdiction and concerned with product evaluation, that maintains periodic inspection of production of labeled equipment or materials, and by whose labeling the manufacturer indicates compliance with appropriate standards or performance in a specified manner (for additional information, see NEC ® Article 100).3.19 listed:equipment, materials or services included in a list published by an organization acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of services, and whose listing states that the equipment, material or services either meets appropriate designated standards or has been tested and found suitable for a specified purpose. (See NEC ® Article 100.)3.20 qualified person:one who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training on the hazards involved.3.21 simple apparatus:Simple Apparatus. An electrical component or combination of components of simpleconstruction with well-defined electrical parameters which does not generate more than1.5 volt, 100 milliamps and 25 milliwatts, or a passive component which does notdissipate more than 1.3 watts and which is compatible with the intrinsic safety of thecircuit in which it is used.FPN: The following apparatus are examples of simple apparatus:a) Passive components, for example switches, junction boxes, resistance temperaturedevices and simple semiconductor devices such as LEDs;b) Sources of generated energy, for example thermocouples and photocells, which do notgenerate more than 1.5 V, 100 mA and 25 mW.3.22 unclassified locationsUnclassified Location:Locations determined to be neither Class I, Division 1; Class I, Division 2; Class I,Zone 0; Class I, Zone 1; Class I, Zone 2; Class II, Division 1; Class II, Division 2;Class III, Division 1; Class III, Division 2; or any combination thereof.3.23 wiring drawing:a drawing or other document created by the user based upon the relevant control drawings. The wiring drawing is used by the installer to determine the type, color, and size of the wire used to connect each terminal of the equipment used in the intrinsically safe circuit.4 Article 504 and 505 of the NEC (ANSI/NFPA 70-2002) with explanation504.1 Scope. This article covers the installation of intrinsically safe (I.S.) apparatus,wiring, and systems for Class I, II, and III locations.504.2 Definitions.Associated Apparatus: Apparatus in which the circuits are not necessarily intrinsicallysafe themselves, but that affect the energy in the intrinsically safe circuits and are reliedon to maintain intrinsic safety. Associated apparatus may be either of the following:Intrinsic safety barriers are a common form of associated apparatus. These barriers are connected between the intrinsically safe apparatus and the control equipment. Their primary purpose is to limit the energy to the hazardous location under fault conditions. They may also provide isolation, signal conditioning, or both. There are also many types of associated apparatus that normally are not referred to as intrinsic safety barriers, but have energy-limiting circuits suitable for connection directly to intrinsically safe apparatus. An example of this type of associated apparatus is a controller that is not itself intrinsically safe, but has connections for intrinsically safe sensors.504.3 Application of Other Articles. Except as modified by this article, all applicablearticles of this Code shall apply.Although intrinsically safe circuits are inherently low-energy circuits, they may still be shock hazards because of the operating voltage.Clause 500.7 (E) provides an exception for intrinsically safe apparatus and wiring from the requirements of Articles 501 through 503 and 510 through 516. All other articles of the Code apply to intrinsically safe wiring, except as exempted by specific articles.If the rated voltage of the circuit exceeds 60 volts DC or 30 volts AC, the wiring requirements for Class 3 circuits apply. (See NEC ®Article 725.)Other articles may apply, depending on the functional application — e.g., Article 725 for cables installed in ducts, plenums, risers, and other air-handling spaces, Article 760 for fire protective signaling systems, and Article 800 for communications circuits.504.4 Equipment Approval. All intrinsically safe apparatus and associated apparatusshall be listed.Exception: Simple apparatus, as described on the control drawing, shall not be requiredto be listed.Electrical equipment that is listed or labeled by a nationally recognized testing laboratory (NRTL) normally will be accepted by the AHJ. The AHJ may also accept specialized equipment not listed or labeled by a NRTL, with appropriate technical justification. A written report of the investigation and conclusion should be kept on file, and the markings on the equipment should identify the report. For additional information see NEC 90.7.504.10 Equipment Installation.(A) Control Drawing. Intrinsically safe apparatus, associated apparatus, and otherequipment shall be installed in accordance with the control drawing(s).Exception: A simple apparatus that does not interconnect intrinsically safe circuits.FPN: The control drawing identification is marked on the apparatus.There are three basic types of control drawings:a) Intrinsically safe apparatus and associated apparatus are both specified by manufacturer and modelnumber. (See figure 4.1 for an example.)b) Intrinsically safe apparatus is specified by manufacturer and model number for connection toassociated apparatus specified by entity parameters. (See figures 4.2a and 4.2b for an example.) c) Associated apparatus is specified by manufacturer and model number for connection to intrinsicallysafe apparatus that is specified by entity parameters or to simple apparatus. (See figures 4.3a and4.3b for an example.)Control drawings that are combinations of the above types are also possible. For example, control drawings for intrinsically safe apparatus often specify permissible connections to specific associated apparatus and also specify entity parameters to allow additional flexibility in selecting associated apparatus. (See figure 4.3c for an example.)To ensure that a given interconnection forms an intrinsically safe system, it is necessary to obtain control drawings that specify each intrinsically safe apparatus and associated apparatus to be interconnected. If a control drawing of the type shown in figure 4.1 that correctly describes the interconnection is available, only that control drawing is necessary.If the intrinsic safety of the system is to be based on the comparison of entity parameters, it is necessary to obtain a control drawing for each intrinsically safe apparatus and associated apparatus. Care should be taken to ensure that the entity parameters used in the comparison apply to the specific set(s) of terminals to be interconnected.If the system includes only simple apparatus connected to an associated apparatus, only the associated apparatus control drawing is necessary. Multiple channels of associated apparatus should not be connected to a single simple apparatus unless specifically permitted by the control drawing.Frequently, the user creates a wiring drawing based on the control drawings provided by the manufacturers of the intrinsically safe apparatus and associated apparatus or other specification sheets that provide information such as terminal identification.NOTE — Figures 4.1, 4.2a, 4.2b, 4.3a, 4.3b and 4.3.c were provided by the SP12.02 subcommittee.Figure 4.1 — Example of a control drawing for an intrinsically safe systemFigure 4.2a — Example of a control drawing for an intrinsically safe apparatus with entity parameters for Division 1 and Zone 0Figure 4.2b— Example of control drawing for an intrinsically safe apparatus with entity parameters for Zone 1Figure 4.3a — Example of a control drawing for an associated apparatus with entity parameters for Division 1 and Zone 0。
[zh-cn]SharePoint_2010_Overview_Evaluation_Guide
内容提要
这个评估指南的目的是让您对Microsoft SharePoint 2010的设计目标和功能集有一个深刻的了解,对 产品的应用进行性掌握。它提供了SharePoint 2010的解决方案及其优势概述介绍,同时,在 SharePoint网站、社会网络、搜索技术、商业智能、企业内容管理和复合应用程序等领域的全新与 改进功能方面,将进行说明。它还为管理人员和开发人员提供了产品主要功能领域的有用信息。 本指南的最终目标是协助读者全面掌握和有效评估SharePoint 2010。本指南意在让任何一个对 SharePoint 2010感兴趣的人可以了解更多。 要获取有关SharePoint 2010的最新信息,请访问.其他的产 品信息和相关资源,参见本指南中的―适用于SharePoint 2010评估的相关资源‖ 部分。
这些协作功能是创建丰富的商业产品应用程序的重要因素;Microsoft SharePoint 2010 采用、扩展 这些功能的同时,在建立丰富的企业产品解决方案中添加了许多功能水平。这些附加功能正是本文 的重点。
6
当考虑企业业务协作解决方案的SharePoint 2010 时,有6个主要功能领域可供探索:
SharePoint 2010
SharePoint 2010是企业和Web的商业合作平台。这个版本的SharePoint 在尽可能广泛的意识中促进 了业务合作,利用其丰富的集成功能设置,让同事、合作伙伴、客户以全新的、更有效的 方式共同协作。SharePoint 2010的功能进一步增强甚至更加深入,目的是使用 Microsoft Office 2010和其他产品,比如Project Server 2010、 Visio 2010 等等,可以更好地工作。 SharePoint Foundation SharePoint Foundation 2010是Microsoft Windows SharePoint Services (WSS)的新版本。它采用操作系 统和数据库服务来支持从一个工作组的团队网站到大企业为数以万计的雇工及工作人员提供的门户 解决方案,再到一个支持上百万观众的企业互联网网站。 Microsoft SharePoint 2010 是基于SharePoint Foundation 2010 建立起来的,提供一个企业级规模功能 的综合解决方案来满足紧要需求,比如管理内容和业务流程,简化人们跨边界查找、共享信息的途 径。
IRF640B(中英文)
72
Gate-Source Voltage Single Pulsed Avalanche Energy Avalanche Current Repetitive Avalanche Energy Peak Diode Recovery dv/dt Power Dissipation (TC = 25°C)
Cres =Cgd
---(Note 4, 5)
20 145 145 110 45 6.5 22
50 300 300 230 58 ---
ns ns ns ns nC nC nC
----
(Note 4, 5)
--
Drain-Source Diode Characteristics and Maximum Ratings
测试条件
VGS = 0 V, ID = 250 µA ID = 250 µA, Referenced to 25°C VDS = 200 V, VGS = 0 V VDS = 160 V, TC = 125°C VGS = 30 V, VDS = 0 V VGS = -30 V, VDS = 0 V
漏源二极管特性和最大值乯
----(Note 4)
---195 1.47
18 72 1.5 ---
A A V ns µC
漏源二极管正向压降 反向恢复时间 反向恢复电荷
--
Notes: 1. Repetitive Rating : Pulse width limited by maximum junction temperature 2. L = 1.16mH, IAS = 18A, VDD = 50V, RG = 25 Ω, Starting TJ = 25°C 3. ISD ≤ 18A, di/dt ≤ 300A/µs, VDD ≤ BVDSS, Starting TJ = 25°C 4. Pulse Test : Pulse width ≤ 300µs, Duty cycle ≤ 2% 5. Essentially independent of operating temperature
JESD22-A102D Nov 2010 Accelerated Moisture Resistance - Unbiased Autoclave
PLEASE! DON’T VIOLATE THE LAW!
This document is copyrighted by JEDEC and may not be reproduced without permission. Organizations may obtain permission to reproduce a limited number of copies through entering into a license agreement. For information, contact:
JEDEC STANDARD
Accelerated Moisture Resistance Unbiased Autoclave
JESD22-A102D
(Revision of JESD22-A102-C, December 2000)
NOVEMBER 2010
JEDEC SOLID STATE TECHNOLOGY ASSOCIATION
2
Apparatus
The test requires a pressure chamber capable of maintaining a specified temperature, and relative humidity. 2.1 Records
A permanent record of the temperature profile for each test cycle is recommended, so the stress conditions can be verified. 2.2 Devices under stress
NOTICE JEDEC standards and publications contain mate
IAS2
IAS 2 International Accounting Standard 2InventoriesThis version includes amendments resulting from IFRSs issued up to 31 December 2009 with an effective date no later than 1 January 2010.IAS 2 Inventories was issued by the International Accounting Standards Committee in December 1993. It replaced IAS 2 Valuation and Presentation of Inventories in the Context of the Historical Cost System (originally issued in October 1975).The Standing Interpretations Committee developed SIC-1 Consistency—Different Cost Formulas for Inventories, which was issued in December 1997.Limited amendments to IAS 2 were made in 1999 and 2000.In April 2001 the International Accounting Standards Board (IASB) resolved that all Standards and Interpretations issued under previous Constitutions continued to be applicable unless and until they were amended or withdrawn.In December 2003 the IASB issued a revised IAS 2, which also replaced SIC-1.Since then IAS 2 has been amended by the following IFRSs:•IFRS8Operating Segments (issued November 2006)*•Improvements to IFRSs (issued May 2008).*Amendment with an effective date later than 1 January 2010IAS 2 has been amended by IFRS 9 Financial Instruments (issued November 2009). That amendment has an effective date of 1 January 2013 and is therefore not included in this edition.The following Interpretation refers to IAS 2:•SIC-32 Intangible Assets—Web Site Costs (issued March 2002 and subsequently amended).*Effective date 1 January 2009© IASCF1009IAS 21010© IASCF C ONTENTSparagraphs INTRODUCTIONIN1–IN17INTERNATIONAL ACCOUNTING STANDARD 2INVENTORIESOBJECTIVE1SCOPE2–5DEFINITIONS6–8MEASUREMENT OF INVENTORIES9–33Cost of inventories10–22Costs of purchase11Costs of conversion12–14Other costs15–18Cost of inventories of a service provider19Cost of agricultural produce harvested from biological assets20Techniques for the measurement of cost21–22Cost formulas23–27Net realisable value28–33RECOGNITION AS AN EXPENSE34–35DISCLOSURE36–39EFFECTIVE DATE40WITHDRAWAL OF OTHER PRONOUNCEMENTS41–42APPENDIXAmendments to other pronouncementsAPPROVAL BY THE BOARD OF IAS 2 ISSUED IN DECEMBER 2003BASIS FOR CONCLUSIONSIAS 2 International Accounting Standard 2 Inventories (IAS 2) is set out in paragraphs 1–42 and the Appendix. All the paragraphs have equal authority but retain the IASC format of the Standard when it was adopted by the IASB. IAS 2 should be read in the context of its objective and the Basis for Conclusions, the Pref ace to International Financial Reporting Standards and the Framework f or the Preparation and Presentation of Financial Statements. IAS8Accounting Policies, Changes in Accounting Estimates and Errors provides a basis for selecting and applying accounting policies in the absence of explicit guidance.© IASCF1011IAS 2IntroductionIN1International Accounting Standard 2 Inventories (IAS 2) replaces IAS 2 Inventories (revised in 1993) and should be applied for annual periods beginning on or after 1January 2005. Earlier application is encouraged. The Standard also supersedes SIC-1 Consistency—Different Cost Formulas for Inventories.Reasons for revising IAS 2IN2The International Accounting Standards Board developed this revised IAS 2 as part of its project on Improvements to International Accounting Standards.The project was undertaken in the light of queries and criticisms raised in relation to the Standards by securities regulators, professional accountants and other interested parties. The objectives of the project were to reduce or eliminate alternatives, redundancies and conflicts within the Standards, to deal with some convergence issues and to make other improvements.IN3For IAS 2 the Board’s main objective was a limited revision to reduce alternatives for the measurement of inventories. The Board did not reconsider the fundamental approach to accounting for inventories contained in IAS2.The main changesIN4The main changes from the previous version of IAS 2 are described below.Objective and scopeIN5The objective and scope paragraphs of IAS 2 were amended by removing the words ‘held under the historical cost system’, to clarify that the Standard applies to all inventories that are not specifically excluded from its scope.Scope clarificationIN6The Standard clarifies that some types of inventories are outside its scope while certain other types of inventories are exempted only from the measurement requirements in the Standard.IN7Paragraph 3 establishes a clear distinction between those inventories that are entirely outside the scope of the Standard (described in paragraph 2) and those inventories that are outside the scope of the measurement requirements but within the scope of the other requirements in the Standard.1012© IASCFIAS 2Scope exemptionsProducers of agricultural and forest products, agricultural produceafter harvest and minerals and mineral productsIN8The Standard does not apply to the measurement of inventories of producers of agricultural and forest products, agricultural produce after harvest, and minerals and mineral products, to the extent that they are measured at net realisable value in accordance with well-established industry practices. The previous version of IAS 2 was amended to replace the words ‘mineral ores’ with ‘minerals and mineral products’ to clarify that the scope exemption is not limited to the early stage of extraction of mineral ores.Inventories of commodity broker-tradersIN9The Standard does not apply to the measurement of inventories of commodity broker-traders to the extent that they are measured at fair value less costs to sell.Cost of inventoriesCosts of purchaseIN10IAS 2 does not permit exchange differences arising directly on the recent acquisition of inventories invoiced in a foreign currency to be included in the costs of purchase of inventories. This change from the previous version of IAS 2 resulted from the elimination of the allowed alternative treatment of capitalising certain exchange differences in IAS 21 The Effects of Changes in Foreign Exchange Rates.That alternative had already been largely restricted in its application by SIC-11 Foreign Exchange—Capitalisation of Losses from Severe Currency Devaluations. SIC-11 has been superseded as a result of the revision of IAS21 in 2003.Other costsIN11Paragraph 18 was inserted to clarify that when inventories are purchased with deferred settlement terms, the difference between the purchase price for normal credit terms and the amount paid is recognised as interest expense over the period of financing.Cost formulasConsistencyIN12The Standard incorporates the requirements of SIC-1 Consistency—Dif erent Cost Formulas for Inventories that an entity use the same cost formula for all inventories having a similar nature and use to the entity. SIC-1 is superseded.Prohibition of LIFO as a cost formulaIN13The Standard does not permit the use of the last-in, first-out (LIFO) formula to measure the cost of inventories.© IASCF1013IAS 2Recognition as an expenseIN14The Standard eliminates the reference to the matching principle.IN15The Standard describes the circumstances that would trigger a reversal of a write-down of inventories recognised in a prior period.DisclosureInventories carried at fair value less costs to sellIN16The Standard requires disclosure of the carrying amount of inventories carried at fair value less costs to sell.Write-down of inventoriesIN17The Standard requires disclosure of the amount of any write-down of inventories recognised as an expense in the period and eliminates the requirement to disclose the amount of inventories carried at net realisable value.1014© IASCFIAS 2 International Accounting Standard 2InventoriesObjective1The objective of this Standard is to prescribe the accounting treatment for inventories. A primary issue in accounting for inventories is the amount of cost to be recognised as an asset and carried forward until the related revenues are recognised. This Standard provides guidance on the determination of cost and its subsequent recognition as an expense, including any write-down to net realisable value. It also provides guidance on the cost formulas that are used to assign costs to inventories.Scope2This Standard applies to all inventories, except:(a)work in progress arising under construction contracts, including directlyrelated service contracts (see IAS 11 Construction Contracts);(b)financial instruments (see IAS 32 Financial Instruments: Presentation andIAS39 Financial Instruments: Recognition and Measurement); and(c)biological assets related to agricultural activity and agricultural produce atthe point of harvest (see IAS 41 Agriculture).3This Standard does not apply to the measurement of inventories held by:(a)producers of agricultural and forest products, agricultural produce afterh arvest, and minerals and mineral products, to th e extent th at th ey aremeasured at net realisable value in accordance with well-establish edpractices in those industries. When such inventories are measured at netrealisable value, changes in that value are recognised in profit or loss in theperiod of the change.(b)commodity broker-traders who measure their inventories at fair value lesscosts to sell. When such inventories are measured at fair value less costs tosell, changes in fair value less costs to sell are recognised in profit or loss inthe period of the change.4The inventories referred to in paragraph 3(a) are measured at net realisable value at certain stages of production. This occurs, for example, when agricultural crops have been harvested or minerals have been extracted and sale is assured under a forward contract or a government guarantee, or when an active market exists and there is a negligible risk of failure to sell. These inventories are excluded from only the measurement requirements of this Standard.5Broker-traders are those who buy or sell commodities for others or on their own account. The inventories referred to in paragraph 3(b) are principally acquired with the purpose of selling in the near future and generating a profit from© IASCF1015IAS 2fluctuations in price or broker-traders’ margin. When these inventories are measured at fair value less costs to sell, they are excluded from only the measurement requirements of this Standard.Definitions6The following terms are used in this Standard with the meanings specified: Inventories are assets:(a)held for sale in the ordinary course of business;(b)in the process of production for such sale; or(c)in the form of materials or supplies to be consumed in the productionprocess or in the rendering of services.Net realisable value is the estimated selling price in the ordinary course of business less the estimated costs of completion and the estimated costs necessary to make the sale.Fair value is th e amount for wh ich an asset could be exch anged, or a liability settled, between knowledgeable, willing parties in an arm’s length transaction.7Net realisable value refers to the net amount that an entity expects to realise from the sale of inventory in the ordinary course of business. Fair value reflects the amount for which the same inventory could be exchanged between knowledgeable and willing buyers and sellers in the marketplace. The former is an entity-specific value; the latter is not. Net realisable value for inventories may not equal fair value less costs to sell.8Inventories encompass goods purchased and held for resale including, for example, merchandise purchased by a retailer and held for resale, or land and other property held for resale. Inventories also encompass finished goods produced, or work in progress being produced, by the entity and include materials and supplies awaiting use in the production process. In the case of a service provider, inventories include the costs of the service, as described in paragraph 19, for which the entity has not yet recognised the related revenue (see IAS18 Revenue).Measurement of inventories9Inventories shall be measured at the lower of cost and net realisable value.Cost of inventories10The cost of inventories shall comprise all costs of purchase, costs of conversion and other costs incurred in bringing the inventories to their present location and condition.1016© IASCFIAS 2Costs of purchase11The costs of purchase of inventories comprise the purchase price, import duties and other taxes (other than those subsequently recoverable by the entity from the taxing authorities), and transport, handling and other costs directly attributable to the acquisition of finished goods, materials and services. Trade discounts, rebates and other similar items are deducted in determining the costs of purchase.Costs of conversion12The costs of conversion of inventories include costs directly related to the units of production, such as direct labour. They also include a systematic allocation of fixed and variable production overheads that are incurred in converting materials into finished goods. Fixed production overheads are those indirect costs of production that remain relatively constant regardless of the volume of production, such as depreciation and maintenance of factory buildings and equipment, and the cost of factory management and administration. Variable production overheads are those indirect costs of production that vary directly, or nearly directly, with the volume of production, such as indirect materials and indirect labour.13The allocation of fixed production overheads to the costs of conversion is based on the normal capacity of the production facilities. Normal capacity is the production expected to be achieved on average over a number of periods or seasons under normal circumstances, taking into account the loss of capacity resulting from planned maintenance. The actual level of production may be used if it approximates normal capacity. The amount of fixed overhead allocated to each unit of production is not increased as a consequence of low production or idle plant. Unallocated overheads are recognised as an expense in the period in which they are incurred. In periods of abnormally high production, the amount of fixed overhead allocated to each unit of production is decreased so that inventories are not measured above cost. Variable production overheads are allocated to each unit of production on the basis of the actual use of the production facilities.14 A production process may result in more than one product being producedsimultaneously. This is the case, for example, when joint products are produced or when there is a main product and a by-product. When the costs of conversion of each product are not separately identifiable, they are allocated between the products on a rational and consistent basis. The allocation may be based, for example, on the relative sales value of each product either at the stage in the production process when the products become separately identifiable, or at the completion of production. Most by-products, by their nature, are immaterial.When this is the case, they are often measured at net realisable value and this value is deducted from the cost of the main product. As a result, the carrying amount of the main product is not materially different from its cost.© IASCF1017IAS 2Other costs15Other costs are included in the cost of inventories only to the extent that they are incurred in bringing the inventories to their present location and condition.For example, it may be appropriate to include non-production overheads or the costs of designing products for specific customers in the cost of inventories.16Examples of costs excluded from the cost of inventories and recognised as expenses in the period in which they are incurred are:(a)abnormal amounts of wasted materials, labour or other production costs;(b)storage costs, unless those costs are necessary in the production processbefore a further production stage;(c)administrative overheads that do not contribute to bringing inventories totheir present location and condition; and(d)selling costs.17IAS23 Borrowing Costs identifies limited circumstances where borrowing costs are included in the cost of inventories.18An entity may purchase inventories on deferred settlement terms. When the arrangement effectively contains a financing element, that element, for examplea difference between the purchase price for normal credit terms and the amountpaid, is recognised as interest expense over the period of the financing.Cost of inventories of a service provider19To the extent that service providers have inventories, they measure them at the costs of their production. These costs consist primarily of the labour and other costs of personnel directly engaged in providing the service, including supervisory personnel, and attributable overheads. L abour and other costs relating to sales and general administrative personnel are not included but are recognised as expenses in the period in which they are incurred. The cost of inventories of a service provider does not include profit margins or non-attributable overheads that are often factored into prices charged by service providers.Cost of agricultural produce harvested from biological assets20In accordance with IAS 41 Agriculture inventories comprising agricultural produce that an entity has harvested from its biological assets are measured on initial recognition at their fair value less costs to sell at the point of harvest. This is the cost of the inventories at that date for application of this Standard.Techniques for the measurement of cost21Techniques for the measurement of the cost of inventories, such as the standard cost method or the retail method, may be used for convenience if the results approximate cost. Standard costs take into account normal levels of materials and supplies, labour, efficiency and capacity utilisation. They are regularly reviewed and, if necessary, revised in the light of current conditions.1018© IASCFIAS 2 22The retail method is often used in the retail industry for measuring inventories of large numbers of rapidly changing items with similar margins for which it is impracticable to use other costing methods. The cost of the inventory is determined by reducing the sales value of the inventory by the appropriate percentage gross margin. The percentage used takes into consideration inventory that has been marked down to below its original selling price. An average percentage for each retail department is often used.Cost formulas23The cost of inventories of items that are not ordinarily interchangeable and goods or services produced and segregated for specific projects sh all be assigned by using specific identification of their individual costs.24Specific identification of cost means that specific costs are attributed to identified items of inventory. This is the appropriate treatment for items that are segregated for a specific project, regardless of whether they have been bought or produced. However, specific identification of costs is inappropriate when there are large numbers of items of inventory that are ordinarily interchangeable.In such circumstances, the method of selecting those items that remain in inventories could be used to obtain predetermined effects on profit or loss.25Th e cost of inventories, oth er th an th ose dealt with in paragraph 23, sh all be assigned by using the first-in, first-out (FIFO) or weighted average cost formula.An entity sh all use th e same cost formula for all inventories h aving a similar nature and use to th e entity. For inventories with a different nature or use, different cost formulas may be justified.26For example, inventories used in one operating segment may have a use to the entity different from the same type of inventories used in another operating segment. However, a difference in geographical location of inventories (or in the respective tax rules), by itself, is not sufficient to justify the use of different cost formulas.27The FIFO formula assumes that the items of inventory that were purchased or produced first are sold first, and consequently the items remaining in inventory at the end of the period are those most recently purchased or produced. Under the weighted average cost formula, the cost of each item is determined from the weighted average of the cost of similar items at the beginning of a period and the cost of similar items purchased or produced during the period. The average may be calculated on a periodic basis, or as each additional shipment is received, depending upon the circumstances of the entity.Net realisable value28The cost of inventories may not be recoverable if those inventories are damaged, if they have become wholly or partially obsolete, or if their selling prices have declined. The cost of inventories may also not be recoverable if the estimated costs of completion or the estimated costs to be incurred to make the sale have increased. The practice of writing inventories down below cost to net realisable value is consistent with the view that assets should not be carried in excess of amounts expected to be realised from their sale or use.© IASCF1019IAS 229Inventories are usually written down to net realisable value item by item. In some circumstances, however, it may be appropriate to group similar or related items.This may be the case with items of inventory relating to the same product line that have similar purposes or end uses, are produced and marketed in the same geographical area, and cannot be practicably evaluated separately from other items in that product line. It is not appropriate to write inventories down on the basis of a classification of inventory, for example, finished goods, or all the inventories in a particular operating segment. Service providers generally accumulate costs in respect of each service for which a separate selling price is charged. Therefore, each such service is treated as a separate item.30Estimates of net realisable value are based on the most reliable evidence available at the time the estimates are made, of the amount the inventories are expected to realise. These estimates take into consideration fluctuations of price or cost directly relating to events occurring after the end of the period to the extent that such events confirm conditions existing at the end of the period.31Estimates of net realisable value also take into consideration the purpose for which the inventory is held. For example, the net realisable value of the quantity of inventory held to satisfy firm sales or service contracts is based on the contract price. If the sales contracts are for less than the inventory quantities held, the net realisable value of the excess is based on general selling prices. Provisions may arise from firm sales contracts in excess of inventory quantities held or from firm purchase contracts. Such provisions are dealt with under IAS 37 Provisions, Contingent Liabilities and Contingent Assets.32Materials and other supplies held for use in the production of inventories are not written down below cost if the finished products in which they will be incorporated are expected to be sold at or above cost. However, when a decline in the price of materials indicates that the cost of the finished products exceeds net realisable value, the materials are written down to net realisable value. In such circumstances, the replacement cost of the materials may be the best available measure of their net realisable value.33 A new assessment is made of net realisable value in each subsequent period.When the circumstances that previously caused inventories to be written down below cost no longer exist or when there is clear evidence of an increase in net realisable value because of changed economic circumstances, the amount of the write-down is reversed (ie the reversal is limited to the amount of the original write-down) so that the new carrying amount is the lower of the cost and the revised net realisable value. This occurs, for example, when an item of inventory that is carried at net realisable value, because its selling price has declined, is still on hand in a subsequent period and its selling price has increased. Recognition as an expense34Wh en inventories are sold, th e carrying amount of th ose inventories sh all be recognised as an expense in the period in which the related revenue is recognised.The amount of any write-down of inventories to net realisable value and all losses of inventories shall be recognised as an expense in the period the write-down or1020© IASCFIAS 2loss occurs. The amount of any reversal of any write-down of inventories, arising from an increase in net realisable value, shall be recognised as a reduction in the amount of inventories recognised as an expense in th e period in wh ich th e reversal occurs.35Some inventories may be allocated to other asset accounts, for example, inventory used as a component of self-constructed property, plant or equipment.Inventories allocated to another asset in this way are recognised as an expense during the useful life of that asset.Disclosure36The financial statements shall disclose:(a)th e accounting policies adopted in measuring inventories, including th ecost formula used;(b)th e total carrying amount of inventories and th e carrying amount inclassifications appropriate to the entity;(c)the carrying amount of inventories carried at fair value less costs to sell;(d)the amount of inventories recognised as an expense during the period;(e)the amount of any write-down of inventories recognised as an expense inthe period in accordance with paragraph 34;(f)th e amount of any reversal of any write-down th at is recognised as areduction in the amount of inventories recognised as expense in the periodin accordance with paragraph 34;(g)th e circumstances or events th at led to th e reversal of a write-down ofinventories in accordance with paragraph 34; and(h)the carrying amount of inventories pledged as security for liabilities.37Information about the carrying amounts held in different classifications of inventories and the extent of the changes in these assets is useful to financial statement users. Common classifications of inventories are merchandise, production supplies, materials, work in progress and finished goods.The inventories of a service provider may be described as work in progress.38The amount of inventories recognised as an expense during the period, which is often referred to as cost of sales, consists of those costs previously included in the measurement of inventory that has now been sold and unallocated production overheads and abnormal amounts of production costs of inventories.The circumstances of the entity may also warrant the inclusion of other amounts, such as distribution costs.© IASCF1021IAS 239Some entities adopt a format for profit or loss that results in amounts being disclosed other than the cost of inventories recognised as an expense during the period. Under this format, an entity presents an analysis of expenses using a classification based on the nature of expenses. In this case, the entity discloses the costs recognised as an expense for raw materials and consumables, labour costs and other costs together with the amount of the net change in inventories for the period.Effective date40An entity shall apply this Standard for annual periods beginning on or after 1January2005. Earlier application is encouraged. If an entity applies this Standard for a period beginning before 1 January 2005, it shall disclose that fact. Withdrawal of other pronouncements41This Standard supersedes IAS2 Inventories (revised in 1993).42This Standard supersedes SIC-1 Consistency—Different Cost Formulas for Inventories. 1022© IASCF。
Autodesk Revit Architecture 2010 认证准备指南.pdf_170211
Autodesk ® Certification Exam Guide Autodesk ®Revit ®ArchitecturePreparation Guide for Autodesk Revit Architecture 2010 Certified Associate and Autodesk Revit Architecture 2010 Certified Professional Certification Exams.This guide is intended as a resource in your preparation for the exams to become Autodesk certified. It will help you understand the structure and content of the exam, and to develop a personal strategy to successfully pass the Autodesk Revit Architecture 2010 Certified Associate and Certified Professional exams, and includes information on re-certifi c ation from Autodesk Revit Architecture 2009 Certified User.About Autodesk Professional Certification Autodesk certifications are industry-recognized credentials that can help you succeed in your design career – providing benefits to both you and your employer. Autodesk certifications are a reliable validation of skills and knowledge, and can lead to accelerated professional development, improved productivity, and enhanced credibility.Getting CertifiedTo earn Autodesk Certification, you must pass the required Autodesk Certification exams. Step through each of these areas to help ensure your success:• C hoose the Certification that’s right for you: Choose the level and the Autodesk application that best applies to you. Understand the requirements for the Certification you want to earn.• A ssess your readiness and take a practice test: Take an assessment test to assess your knowledge of the product. And then take a practice test for the Professional-level exam to gain experience using the testing system.• G et the training you need: Autodesk Official Training Guides, or take classes at an Autodesk Authorized Training Center (ATC ®).• A pply your training and practice your skills: Practice what you’ve learned to gain experience.• T ake the required exam: Register for your exam at an Autodesk Authorized Certification Center.Autodesk certification exams are delivered at Autodesk Authorized Certification Centers. All exams are computer-delivered in a proctored environment. You can find the locations of Autodesk Certification Centers near you using the Center Search function on Authorized Certification CenterAutodesk Revit Architecture 2010Certified Associate Exam Summary Information The Autodesk Revit Architecture 2010 Certified Associate exam is an on-line examination consisting of 30 questions that assess your know l edge of the tools, features, and common tasks in Autodesk Revit Architecture 2010.Question types include multiple choice, matching, and point and click (hotspot).The exam has a one hour time limit (in some countries the time limit may be extended). At the conclusion of the exam, you will receive a comprehensive score report which includes summary information on the questions you missed and where you can find information on that area in the corresponding Autodesk Official Training Guide.Autodesk Revit Architecture 2010 Certified Professional Exam Summary InformationThe Autodesk Revit Architecture 2010 Professional Certification exam is a performance based test. Performance based testing is defined as testing by doing. That means that rather than answer questions about how you might accomplish a task, you actually perform the task.The Autodesk Revit Architecture 2010 Certified Professional exam is comprised of 20 questions. Each question requires you to use the Autodesk application to create or modify a data file, and then to type your answer into an input box on the screen. The answer you enter will either be a text entry or a numeric value. The exam has a 90 minute time limit (in some countries the time limit may be extended).To earn the credential of Autodesk Revit Architecture Certified Professional, you must also pass the Autodesk Revit Architecture Certified Associate exam. You can pass the exams in any order.Autodesk ®Certification Exam Summary InformationExample of Certified Professional Test Item Open the drawing file Copy-Dining-Chair.dwg. 1. U sing the insertion point of Dining Chairs “A and “B”, copy the Dining Chairs, 712.8 units along the edge of the Dining Table as shown. Using the Distance command, what is the distance (to the nearest integer) from the corner of Dining Chair labeled “D” to the corner of Dining Chair labeled “E” as shown?The answer is: 1081Exam Preparation – Your Key to Success Autodesk highly recommends using a variety of resources to prepare for certification exams. In all cases, you should start with the exam objectives to determine which tasks will be covered on the exams. Equally as important, actual hands-on experience is required. From there, we recommend that you choose the preparation option that best fits your needs. Details on Autodesk recommended preparation solutions are available in this guide. During preparation, it is important that you review the exam objectives periodically to make sure that all of the material in the exam is covered in your choice of preparation methods. Please note that some material on the test maynot be covered in your choice of preparation materials. This is why it is critical that you refer to the list of exam objectives during your course of study. Recommended Experience Levels for AutodeskRevit Architecture 2010 Certification ExamsActual hands-on experience is a criticalcomponent in preparing for the exam. Directapplication of the skills learned cannot besubstituted by any one other learningresource. You must spend time using theproduct and applying the skills you havelearned.Because experience using the Autodeskapplication is so important, we recommenda minimum level of experience beforeattempting the exam. Note that even withthe recommended level of experience, youshould still use the exam objectives as abasis for your preparation. Even the mostknowledgeable and experienced users ofAutodesk applications will need to focus theirstudy specifically on the exam objectives.Exam ObjectivesReview the exam objectives to see the completelisting of topics for the exam. Use this as yourchecklist to determine your weaknessesand areas on which you will want to focus moreattention in your study and preparation.Autodesk® Certification Exam GuideExam PreparationRecommended Experience Levels2010 Certified Associate exam – LearningAutodesk Revit Architecture 2010 course(or equivalent) plus 100 hours of hands-onapplication2010 Certified Professional exam – LearningAutodesk Revit Architecture 2010 course(or equivalent) plus 400 hours of hands-onapplicationAutodesk Assessment TestsAutodesk assessment tests will help determine your general knowledge of the Autodesk application on which you are seeking certification. This will identify areas of knowledge that you should develop in order to prepare for the certification exam. At the completion of an Autodesk Assessment test you will receive a comprehensive score report and also be able to review the items you missed and their correct answers. 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This test can be taken inan Autodesk Certification Center or fromyour own computer. For more information onpurchasing Autodesk Professional Practicetests see .Test Taking StrategiesEach time you take a test, whether it is anassessment test, practice test, or thecertification exam, you will benefit from usingproven test taking strategies to increase yourodds of success. Some of these strategiesare general, but some are very specific to thetype of exam you may be taking.Time ManagementBecause Autodesk certification exams are timed,management of time during testing is anintegral part of a successful outcome. Autodeskrecommends that you use a strategy thatmaximizes the time available so that you willhave time to answer each exam question. TheAutodesk Online test system allows you to markquestions for review and return to them later.This allows you to work through the testquestions that are easy or quick for you, andmark the more difficult questions to return tolater if time permits. 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The certificate and logos are available in your certification profile.Once certified, you can also choose to have your contact information and certifications listed in Autodesk’s publicly available database. This is an excellent way to demonstrate your certification status to prospective employers. The database listing can be found on . In order to display your certification log into your Autodesk Online profile and select “yes” to the field “I would like my certification status published to the Autodesk website”. You may change this field at anytime to remove or display your certifications.Autodesk ®Certification Exam GuideExam Registration, Purchase, and SchedulingAutodesk Inventor 2010This number certifies that the recipient has successfully completed all programrequirements.Leveraging the Autodesk brand can help you in your career. Autodesk Certification provides you with an Autodesk logo that you candisplay on your resume and business card, and a beautiful e-certificate suitable for framing. This customized certificate gives instant recognition that your credential is issued by Autodesk.SampleAutodesk Certification Score reporttodesk ertifieshas succ program DateCarl BassPresident, Chief Executive OfficerAutodesk Revit Architecture 2010This number certifies that the recipient has successfully completed all programrequirements.todesk hitectu ertifieshas succ program DateCarl BassPresident, Chief Executive OfficerAutoCAD 2010This number certifies that the recipient has successfully completed all program requirements.In recognition of their commitment to achieving professional excellence, this certifies thathas successfully completed the program requirements ofDate Carl BassPresident, Chief Executive OfficerThe Autodesk Official Training Guide for this exam is Learning Autodesk Revit Architecture 2010. You can purchase this guide at or from your local ATC. Schools can also purchase from an Autodesk Academic Value Added Reseller at /education and select “locate a reseller”.Revit Architecture Basics - Describe the different types of building elements.Chapter 2: Revit Architecture Basics - Describe project templates.Starting a Design- Create a floor plan view and place building elements in it.Chapter3: Starting a Design- Describe levels and their uses.The Basics of the Building Model - Describe wall properties.Chapter4: The Basics of the Building Model - Describe compound walls.Loading Additional Building Components - Load component families and add components in a project.Chapter5: Loading Additional Building Com-ponentsViewing the Building Model - Describe view properties.- Describe object visibility settings.- Describe the characteristics of a section view. - Describe 3D view types.Using Dimensions - Describe permanent dimensions.Chapter7: Using Dimensions andand Constraints- Describe constraints and the types of constraints.ConstraintsDeveloping the - Describe floors.Chapter8: Developing the Building Model Building Model- Add and modify ceilings in a building model.- Describe roofs.- Create curtain walls and modify curtain grids.- Create stairs and railings.Detailing and Drafting- Describe callouts.Chapter9: Detailing and Drafting- Describe text.- Describe tags.- Create detail views.- Describe drafting views.Construction Documentation - Describe the properties of schedules.Chapter10: Construction Documentation - Describe rooms.- Describe legends.Presenting the Building Model - Describe drawing sheets.Chapter 11: Presenting the Building Model - Describe titleblocks.- Create revision clouds.- Describe renderings.The Autodesk Official Training Guide for this exam is Learning Autodesk Revit Architecture 2010. You can purchase this guide at or from your local ATC. Schools can also purchase from an Autodesk Academic Value Added Reseller at /education and select “locate a reseller”.Starting a Design - Create and modify levels.Chapter 3: Starting a DesignThe Basics of the Building Model- Create compound and vertically compound walls.Chapter 4: The Basics of the Building Model- Add and modify walls.- Add doors.Loading Additional Building Components - Load component families and add components in a project.Chapter 5: Loading Additional Building ComponentsViewing the Building Model - Control object visibility.Chapter 6: Viewing the Building Model - Create and modify section and elevation ing Dimensions and Constraints - Work with dimensions.Chapter 7: Using Dimensions and Constraints- Apply constraints.Developing the Building Model- Create and modify floors.Chapter 8: Developing the Building Model- Add and modify ceilings and ceiling components.- Add and modify roofs.- Create and modify stairs and railings.Detailing and Drafting - Create a callout view of a section.Chapter 9: Detailing and Drafting- Work with text and tags.- Add construction details to a detail view.Construction Documentation - Describe the characteristics of a section view.Chapter 10: Construction Documentation- Create a room and room schedule.Presenting the Building Model- Create, modify, and specify print options for drawing sheets.Chapter 11: Presenting the Building Model- Add and update titleblocks and edit titleblock families.Autodesk and Autodesk Revit are registered trademarks or trademarks of Autodesk, Inc., in the USA and/or other countries. All other brand names, product For further information: /certificationemail:**************************。
林肯电力Linc Feed 22M、24M和24M PRO电缆馈线产品说明书
IM302404/2011Rev. 2LINC FEED22M, 24M & 24M PROSpare Parts (1)LINC FEED 22M, 24M & 24M PRO (1)Figure A: Machine Assembly (2)Figure B: Panel Assembly (3)Figure C: Rear Panel Assembly (4)Figure D: Wire Drive Assembly LF 22M (4)Figure E: Wire Drive Assembly LF 24M / LF24M PRO (5)Electrical Schematic (6)LF-22M (6)LF-24M (6)LF-24M PRO (7)LF 22M code 50196 LF 24M code 50197 & LF 24M PRO code 50156 Connection Diagram (8)WEEE (9)Lincoln Electric Bester Sp. z.o.o.ul. Jana III Sobieskiego 19A, 58-260 Bielawa, Polandwww.lincolnelectric.euSpare PartsSP50156/50196/50197 Rev. 207/03LINC FEED 22M, 24M & 24M PROASSEMBLY PAGE NAMEM a c h i n e A s s e m b l yP a n e l A s s e m b l y R e a r P a n e l A s s e m b l y W i r e D r i v e A s s e m b l y L F 22M W i r e D r i v e A s s e m b l y L F 24M / L F 24M P R O CODE NO.:K NO.:FIGURE NO.:A B C D E 50196K14064-1LINC FEED 22M 1111-50197K14065-1W LINC FEED 24M222-150156K14066-1WLINC FEED 24M PRO333-1Figure AFigure A: Machine AssemblyItem Description Part Number QTY12345 1KNOB FI389ET10491R1X X X2LAMP0917-421-024R1X X X3QUICK COUPLING0744-000-152R2•X X4EURO SOCKET R-8040-140-3R1•X XEURO SOCKET R-8040-042-3R1X••5EURO SLEEVE1361-599-708R1X X X6FRONT PANEL R-3019-154-1/08R1••XFRONT PANEL R-3019-154-3/08R1•X•FRONT PANEL R-3019-154-2/08R1X••LABEL (22M)R-0010-247-1R1X••7LABEL (24M)R-0010-248-1R1•X•LABEL (24M PRO)R-0010-249-1R1••X8WASHER0744-200-041R1X X X9PC BOARD PD50918-432-073R1••XPOTENTIOMETR1158-113-304R1X X•10CASTER1029-660-003R2X X X11ROTARY BRACKET1361-598-180R1X X X12BOLT0654-610-004R1X X X13LABEL2719-107-732R1X X X14SIDE PANEL R-1019-224-1R1X X X15WHEEL PG801029-660-081R2X X X16RACK R-3019-156-1/08R1X X X17REEL HUB STANDARD0744-000-192R1X X X FASTENING CUP B11035-11X X X18SPOOL COVER0749-901-003R1X X X19COVER R-3019-162-1/02R1X X X20WARNING LABEL2719-107-728R1X X X21BRIDGE RECTIFIER1156-112-044R1••X22SOLENOID GAS SWITCH0972-423-002R1X X•22SOLENOID GAS SWITCH0972-423-038R1••X23PC BOARD G4560C-3731-399-3R1••XPC BOARD US-69-6Y024-6R1X••PC BOARD US-69 2Y024-2R1•X•24SIDE PANEL R-1019-225-1R1X X X PC BOARD US67C-3731-400-2R1••x25PC BOARD WAV10918-432-006R1•X•26CONTACT RAIL R-1010-038-1R1•X XCONTACT RAIL R-1010-008-1R1X••27SHUNT0941-712-026R1X X X28CONTACT RAIL R-1010-036-1R1•X XCONTACT RAIL R-1010-041-1R1X••29LABEL R-0010-341-1R1••XFigure BFigure B: Panel AssemblyItem Description Part Number QTY 12345KNOB FI259ET13639-3R 2X ••KNOB FI259ET13639-3R 3•X •1KNOB FI259ET13639-3R 5••X LABEL R-0010-278-1R 1X ••LABEL R-0010-277-1R 1•X •2LABEL R-0010-252-1R 1••X DIVIDER R-1019-209-1/08R 1X ••DIVIDER R-1019-208-1/08R 1•X •3DIVIDERR-1019-181-1/08R 1••X POTENTIOMETR 1158-113-304R 2X ••4POTENTIOMETR 1158-113-304R 3•X X 5SWITCH 2FA53-731158-650-021R 1X X X 6SWITCH 6FC53-731158-650-022R 1X X X 7SWITCH PRS D-4542-012-2R 2••X 8FUSE SOCKET 1158-632-032R 1X X •9CAP 1158-632-033R 1X X •10FUSE1158-660-084R1XX•Figure CFigure C: Rear Panel AssemblyItem Description Part Number QTY12345 1QUICK CONNECT COUPLING0744-000-149R1X X X2SOCKET X111158-641-129R1X X X3SOCKET X5D-2985-002-1R1X X X4QUICK CONNECT COUPLING0744-000-152R2 X X5LABEL R-0010-354-1R1X X XFigure DFigure D: Wire Drive Assembly LF 22MItem Description Part Number QTY12345 1WIRE FEEDER COMPLETE0744-000-166R1X2FEED PLATE0646-231-123R1X3PRESSURE ARM COMPLETE0646-231-096R1X4FIXING ARM COMPL.0646-231-097R1X5ADAPTER COPL.0744-000-194R1X6INLET GUIDE COMPLETE0744-000-193R1X7SPRING PRESSURE ARM0646-231-125R1X8AXIS PRESSURE ARM0646-231-120R1X9FIXING CAP0744-000-195R1X10METAL COVER0646-231-127R1X11 D.C. MOTOR1111-722-045R1X12FERRITE TUBE1158-290-036R1X13WIRE GUIDE TUBE D-1829-066-4R1X14WOODRUFF KEY0646-231-102R1XFigure EFigure E: Wire Drive Assembly LF 24M / LF24M PROItem Description Part Number OLD Part Number QTY12345 WIRE FEEDER COMPL.0744-000-241R1X1FEED PLATE0646-233-002R S51997-11X2FIXING ARM COMPL.0646-233-015R2X3INLET GUIDE0646-233-025R T511251X4AXIS PRESSURE ARM0646-233-003R S51997-22X5SPRING PRESSURE ARM0646-233-013R S51997-122X6PRESSURE ARM COMPL.L0646-233-007R S51997-51X7INTERMEDIATE GUIDE0646-233-023R T511261X8AXIS DRIVE ROLL0646-233-020R S51997-192X9GEAR WHEEL ROLL0646-231-090R S51889-22X10GEAR WHEEL MOTOR0646-233-028R S518881X11FIXING CAP0646-233-022R S51997-202X12METAL COVER0646-233-027R S51997-231X13PRESSURE ARM COMPL.R0646-233-005R S51997-41X14MOTOR -28V1111-722-047R L120731X15WOODRUFF KEY0646-231-102R1XElectrical Schematic LF-22MLF-24MLF-24M PROLF 22M code 50196 LF 24M code 50197 & LF 24M PRO code 50156 Connection DiagramWEEERecycleSTRef.F eA lC uB r a s sB o a r d sP l a s t i c sL i q u i d C r i s t a lE x t e r n a l E l e c t r i c C a b l e sC a p a c i t o r sFront Panel Assembly 1X Rack Assembly2X Right Side Access Panel 3X Left Side Panel4X Top Panel Assembly 5XBrake6X Colorless Lamp 7XXConductor Rail 8XCover9XEuro Connector Assembly 10XX Gas Heater Socket 11XKnob12,13,14XP.C.Board Assembly OP-1915XX P.C.Board Assembly 16, 17XX Potentiometers 18X X Rectifier Bridge 19XReinforced Hoses 20, 21X XRotary Bracket 22XShunt23X Solenoid Valve 24XXSpool Cover 25XSwitches26, 27, 28X X Terminal Blocks 29X X X Welding Socket 30XX Wheels31, 32XX。
System BV without the Equalities for Unit
System BV without the Equalities for UnitOzan Kahramano˘g ullarıComputer Science Institute,University of LeipzigInternational Center for Computational Logic,TU Dresdenozan@informatik.uni-leipzig.deAbstract.System BV is an extension of multiplicative linear logic witha non-commutative self-dual operator.In this paper we present systemsequivalent to system BV where equalities for unit are oriented from leftto right and new structural rules are introduced to preserve complete-ness.While thefirst system allows units to appear in the structures,thesecond system makes it possible to completely remove the units fromthe language of BV by proving the normal forms of the structures thatare provable in BV.The resulting systems provide a better performancein automated proof search by disabling redundant applications of infer-ence rules due to the unit.As evidence,we provide a comparison of theperformance of these systems in a Maude implementation.1IntroductionThe calculus of structures is a proof theoretical formalism,like natural deduction, the sequent calculus and proof nets,for specifying logical systems syntactically. It was conceived in[6]to introduce the logical system BV,which extends mul-tiplicative linear logic by a non-commutative self-dual logical operator.Then it turned out to yield systems with interesting and exciting properties for existing logics and new insights to proof theory[12,1].In[14],Tiu showed that BV is not definable in any sequent calculus system.Bruscoli showed in[2]that the non-commutative operator of BV captures precisely the sequentiality notion of process algebra,in particular CCS.In contrast to sequent calculus,the calculus of structures does not rely on the notion of main connective and,like in term rewriting,it permits the application of the inference rules deep inside a formula(structure)which are considered equivalent modulo different equational theories(associativity,commutativity, unit,etc.).This resemblance allows us to express systems in the calculus of structures as term rewriting systems modulo equational theories[8].In[9],we presented a Maude[3,4]implementation of system BV.The lan-guage Maude allows implementing term rewriting systems modulo equational theories due to the built in very fast matching algorithm that supports different combinations of associative,commutative equational theories,also with the pres-ence of units.However,we observed that,often,units cause redundant matchings of the inference rules where the premise and conclusion at the application of the inference rule are equivalent structures.In this paper we present systems equivalent to BV where rule applications with respect to the equalities for unit are made explicit.By orienting the equal-ities for unit,we disallow redundant applications of inference rules.Then,in order to preserve completeness,we add structural rules that are instances of the rules of system BV.This way,resulting systems,depending on the length of the derivations,perform much better in automated proof search in our Maude implementation.The rest of the paper is organized as follows:wefirst summarize the notions and notations of the calculus of structures and system BV.We then present the systems that result from removing the equalities for unit from system BV.After comparing the performance of these systems in our Maude implementation,we conclude with discussions and future work.2The Calculus of Structures and System BVIn this section,we shortly present the calculus of structures and the system BV, following[6].In the language of BV atoms are denoted by a,b,c,...Structures are denoted by R,S,T,...and generated byS::=◦|a| S;...;S>0 |[S,...,S>0]|(S,...,S>0)|S,where◦,the unit,is not an atom. S;...;S is called a seq structure,[S,...,S]is called a par structure,and(S,...,S)is called a copar structure,S is the negation of the structure S.Structures are considered equivalent modulo the relation≈, which is the smallest congruence relation induced by the equations shown in Figure1.1There R,T and U stand forfinite,non-empty sequence of structures.A structure context,denoted as in S{},is a structure with a hole that does not appear in the scope of negation.The structure R is a substructure of S{R} and S{}is its context.Context braces are omitted if no ambiguity is possible: for instance S[R,T]stands for S{[R,T]}.A structure,or a structure context, is in normal form when the only negated structures appearing in it are atoms, no unit◦appears in it.There is a straightforward correspondence between structures not involving seq and formulae of multiplicative linear logic(MLL).For example[(a,b),¯c,¯d] corresponds to((a b) c⊥ d⊥),and vice versa.Units1and⊥are mapped into◦,since1≡⊥,when the rules mix and mix0are added to MLL.For a more detailed discussion on the proof theory of BV and the precise relation between BV and MLL,the reader is referred to[6].In the calculus of structures,an inference rule is a scheme of the kindT ρR,whereρis the name of the rule,T is its premise and R is its conclusion.A 1In[6]axioms for context closure are added.However,because each equational system includes the axioms of equality context closure follows from the substitutivity axioms.AssociativityR ; T ;U ≈ R ;T ;U[R ,[T ]]≈[R ,T ](R ,(T ))≈(R ,T )SingletonR ≈[R ]≈(R )≈R Commutativity [R ,T ]≈[T ,R ](R ,T )≈(T ,R )Units ◦;R ≈ R ;◦ ≈ R [◦,R ]≈[R ](◦,R )≈(R )Negation ◦≈◦ R ;T ≈ R ;T [R,T ]≈(R,T )(R,T )≈[R,T ]R ≈RFig.1.The equational system underlying BV .typical (deep)inference rule has the shape S {T }ρS {R }and specifies the implication T ⇒R inside a generic context S {},which is the implication being modeled in the system 2.When premise and conclusion in an instance of an inference rule are equivalent,that instance is trivial ,otherwise it is non-trivial .An inference rule is called an axiom if its premise is empty.Rules with empty contexts correspond to the case of the sequent calculus.A (formal)system S is a set of inference rules.A derivation ∆in a certain formal system is a finite chain of instances of inference rules in the system.A derivation can consist of just one structure.The topmost structure in a deriva-tion,if present,is called the premise of the derivation,and the bottommost structure is called its conclusion .A derivation ∆whose premise is T ,conclusionis R ,and inference rules are in S will be written as T RS ∆.Similarly,R S Πwill denote a proof Πwhich is a finite derivation whose topmost inference rule is an axiom.The length of a derivation (proof)is the number of instances of inference rules appearing in it.A rule ρis derivable for a system S if for every instance of T ρRthere is a derivation T RS .Two systems S and S are strongly equivalent if for everyderivation T R S ∆there exists a derivation T R S ∆,and vice versa.Two systemsS and S are weakly equivalent if for every proof of a structure T in systemS ,there exists a proof of T in system S ,and vice versa.They are strongly (weakly)equivalent with respect to normal forms if the above statements hold for a normal form of T .2Due to duality between T ⇒R and ¯R⇒¯T ,rules come in pairs of dual rules:a down-version and an up-version.For instance,the dual of the ai ↓rule in Figure 2is the cut rule.In this paper we only consider the down rules which provide a sound and complete system.◦↓◦S{◦}ai↓S[a,¯a]S([R,T],U)sS[(R,U),T]S [R,U];[T,V]q↓S[ R;T , U;V ]Fig.2.System BVThe system{◦↓,ai↓,s,q↓},shown in Figure2,is denoted BV and called basic system V,where V stands for one non-commutative operator3.The rules of the system are called unit(◦↓),atomic interaction(ai↓),switch(s)and seq(q↓). 3System BVnThe system shown in Figure3is called BVn.Structures on which system BVn is defined are as in the previous section,with the only difference that the equalities for unit do not apply anymore.Proposition1.Every BV structure S can be transformed to one of its normal forms S by applying only the rules{u1↓,u2↓,u3↓,u4↓}in Figure3bottom-up and the equalities for negation in Figure1from left to right.Proof:Observe that applying the rules{u1↓,u2↓,u3↓,u4↓}bottom up corresponds to applying the equalities for unit in Figure1from left to right.The result follows from the fact that the corresponding term rewriting system is terminating and confluent, and applicability of these rules contradicts with a structure being in normal form.Proposition2.The rules q1↓,q2↓,q3↓,and q4↓are derivable for{q↓}.The rules s1and s2are derivable for{s}.Proof:–For the rule q1↓take the rule q↓.–For the rule q2↓,q2↓,q4↓,respectively,take the following derivations,respectively:R;T=[R,◦];[◦,T] q↓[ R;◦ , ◦;T ] =[R,T][R,T];U=[R,T];[◦,U]q↓[ R;◦ , T;U ]=[R, T;U ]T;[R,U]=[◦,T];[R,U]q↓[ ◦;R , T;U ]=[R, T;U ]–For the rule s1take the rule s.–For the rule s2take the following derivation:(R,T)=([◦,T],R)s[(◦,R),T]=.[R,T] 3This name is due to the intuition that W stands for two non-commutative operators.◦↓◦S {◦}ai ↓S [a,¯a ]S ([R,T ],U )s 1S [(R,U ),T ]S (R,T )s 2S [R,T ]S [R,T ];[U,V ] q 1↓S [ R ;U , T ;V ]S R ;Tq 2↓S [R,T ]S [R,T ];U q 3↓S [R, T ;U ]S T ;[R,U ] q 4↓S [R, T ;U ]S {R }u 1↓S [R,◦]S {R }u 2↓S (R,◦)S {R }u 3↓S R ;◦ S {R }u 4↓S ◦;R Fig.3.System BVnTheorem 1.For every derivation WQBV∆there exists a derivation W Q BVn ∆ whereW is a normal form of the structure W .Proof:Observe that every derivation ∆in BV can be equivalently written as a deriva-tion where all the structures are in normal form.Let us denote with ∆these derivations where there are only occurrences of structures in normal form.From Proposition 1we get a normal form Q of Q going up in a derivation.With structural induction on ∆we will construct the derivation ∆–If ∆is ◦↓◦then take ∆ =∆.–If,for an atom a ,S {◦}ai ↓S [a,¯a ]is the last rule applied in ∆,then by Proposition 1and by the induction hypothesis there is a derivation WTBVn where T is a normalform of S {◦}.The following cases exhaust the possibilities.•If S [a,¯a ]=S [P,[a,¯a ]]then take the following derivation.S {P }u 1↓S [P ,◦]ai ↓.S [P ,[a,¯a ]]•If S [a,¯a ]=S (P,[a,¯a ])then take the following derivation.S {P }u 2↓S (P ,◦)ai ↓.S (P ,[a,¯a ])•If S [a,¯a ]=S P ;[a,¯a ] then take the following derivation.S {P }u 3↓S P ;◦ ai ↓.S P ;[a,¯a ] •If S [a,¯a ]=S [a,¯a ];P then take the following derivation.S {P }u 4↓S ◦;P ai ↓.S [a,¯a ];P –If P s Q is the last rule applied in ∆where Q =S [(R,T ),U ]for a context S andstructures R ,T and U ,then by induction hypothesis there is a derivation WP BVn.The following cases exhaust the possibilities:•If R =◦,T =◦and U =◦,then apply the rule s 1to Q .•If R =◦,T =◦and U =◦then Q =S [T,U ]where S is a normal form of context S .Apply the rule s 2to Q .•Other 6cases are trivial instances of the s rule.Take P =Q .–If P q ↓Qis the last rule applied in ∆where Q =S [ R ;T , U ;V ]for a context S and structures R ,T ,U and V ,then by induction hypothesis there is a derivation WPBVn .The following cases exhaust the possibilities:•If R =◦,T =◦,U =◦and V =◦,then apply the rule q 1↓to Q .•If R =◦,T =◦,U =◦and V =◦then Q =S [T, U ;V ]where S is a normal form of context S .Apply the rule q 4↓to Q .•If R =◦,T =◦,U =◦and V =◦then Q =S [R, U ;V ]where S is a normal form of context S .Apply the rule q 3↓to Q .•If R =◦,T =◦,U =◦and V =◦then Q =S [[R ;T ],V ]where S is a normal form of context S .Apply the rule q 4↓to Q .•If R =◦,T =◦,U =◦and V =◦then Q =S [ R ;T ,U ]where S is a normal form of context S .Apply the rule q 3↓to Q .•If R =◦,T =◦,U =◦and V =◦then Q =S [R,V ]where S is a normal form of context S .Apply the rule q 2↓to Q .•Other 10cases are trivial instances of the q ↓rule.Take P =Q . Corollary 1.System BV and system BVn are strongly equivalent with respect to normal forms.Proof:From Proposition 2it follows that the derivations in BVn are also derivations in BV .Derivations in BV are translated to derivations in BVn by Theorem 1. Remark 1.From the view point of bottom-up proof search,rule s 2is a redun-dant rule since the structures in a copar structure can not interact with each other.Hence,it does not make any sense to disable the interaction between two structures by applying this rule in proof search.However,in order to preserve completeness for arbitrary derivations this rule is added to the system.4System BVuWith the light of the above remark and observations that we made while prov-ing Theorem1,it is possible to improve further on the rules of system BVn:the system BVu in Figure4,like system BVn,does not allow the application of the equalities for unit.Furthermore,in this system,we merge each one of the rules for unit{u1↓,u2↓,u3↓,u4↓}in Figure3with the rule ai↓since the rules for unit are used only after rule ai↓is applied in a bottom-up proof search.This way we get the rules{ai1↓,ai2↓,ai3↓,ai4↓}.ax[a,¯a]S([R,T],U) s1S[(R,U),T]S{R}ai1↓S[R,[a,¯a]]S{R}ai2↓S(R,[a,¯a])S{R}ai3↓S R;[a,¯a]S{R}ai4↓S [a,¯a];RS [R,T];[U,V] q1↓S[ R;U , T;V ]S R;Tq2↓S[R,T]S [R,T];Uq3↓S[R, T;U ]S T;[R,U]q4↓S[R, T;U ] Fig.4.System BVuCorollary2.System BV and system BVu are equivalent with respect to normal forms.Proof:It is immediate that the rules ai1↓,ai2↓,ai3↓,ai4↓and ax are derivable(sound) for system pleteness follows from the proof of Theorem1and Remark1.The following proposition helps to understand why BVu provides shorter proofs than BVn.Proposition3.Let R be a BV structure in normal form with n number of positive atoms.If R has a proof in BVn with length k,then R has a proof in BVu with length k−n.Proof:(Sketch)By induction on the number of positive atoms in R,together with the observation that while going up in the proof of R in BVn,each positive atom must be annihilated with its negation by an application of the rule ai↓and then the resulting structure must be transformed to a normal form by equivalently removing the unit◦with an application of one of the rules u1↓,u2↓,u3↓and u4↓.In BVn these two steps are replaced by a single application of one of the rules ai1↓,ai2↓,ai3↓and ai4↓.5Implementation and Performance ComparisonIn an implementation of the above systems,the structures must be matched modulo an equational theory.In the case of system BV this equational theory is the union of the AC1theory for par,the AC1theory for copar and A1theory for seq structures,where1denotes the unit◦shared by these structures.However,in the case of BVn the equalities for unit become redundant,since their role in the rules is made explicit.This way,in contrast to the BV structures,the equivalence class of BVn structures becomefinite and redundant matchings of structures with rules are disabled.This results in a significant gain in the performance in automated proof search and derivation search.In[8],we showed that systems in the calculus of structures can be expressed as term rewriting systems modulo equational theories.Exploiting the fact that the Maude System[3,4]allows implementing term rewriting systems modulo equational theories,in[9],we presented a Maude implementation of system BV. There we also provided a general recipe for implementing systems in the calculus of structures and described the use of the relevant Maude commands.Then,we implemented the systems BVn and BVu.All these modules are available for down-load at rmatik.uni-leipzig.de/~ozan/maude_cos.html.Below is a comparison of these systems in our implementation of these sys-tems on some examples of proof search and derivation search queries.(All the experiments below are performed on an Intel Pentium1400MHz Processor.) Consider the following example taken from[2]where we search for a proof of a process structure.search in BV:[a,[<a;[c,-a]>,<-a;-c>]]=>+o.search in BVn:[a,[<a;[c,-a]>,<-a;-c>]]=>+o.search in BVu:[a,[<a;[c,-a]>,<-a;-c>]]=>+[A,-A].finds a proof search terminatesin#millisec.after#rewrites in#millisec.after#rewrites BV137028166955301100629BVn5005973456065273BVu058114015244When we search for the proof of a similar query which involves also copar structures we get the following results.search[-c,[<a;{c,-b}>,<-a;b>]]=>o.finds a proof search terminatesin#millisec.after#rewrites in#millisec.after#rewrites BV9501968661490306179BVn1201261012012720BVu101416604691It is also possible to search for arbitrary derivations.For instance,consider the derivationd;eBVn[¯a, a;d;¯b , b;e;¯c ,c]with the query below,which results in the table below.search[-a,[<a;<d;-b>>,[<b;<e;-c>>,c]]]=>+<d;e>.finds a proof search terminatesin#millisec.after#rewrites in#millisec.after#rewrites BV4940306686573472153091997452BVn514104103138514104103152BVu1009080641710440822161In all the above experiments it is important to observe that,besides the increase in the speed of search,number of rewrites performed differ dramatically between the runs of the same search query on systems BV,BVn and BVu.6DiscussionWe presented two systems equivalent to system BV where equalities for unit become redundant.Within a Maude implementation of these systems,we also showed that,by disabling the redundant applications of the inference rules,these systems provide a better performance in automated proof search.Our resultsfind an immediate application for a fragment of CCS which was shown to be equivalent to BV in[2].Furthermore,we believe that the methods presented in this paper can be analogously applied to the existing systems in the calculus of structures for classical logic[1]and linear logic[12],which are readily expressed as Maude modules.However,termination of proof search in our implementation is a consequence of BV being a multiplicative logic.Although,the new systems presented in this paper improve the performance by making the rule applications explicit and shortening the proofs by merging rule steps,due to the exponential blow up in the search space,an implementation for practical purposes that allows“bigger structures”will require introduction of strategies at the Maude meta-level[5], in the lines of uniform proofs[11]and Guglielmi’s Splitting Theorem[6].System NEL[7]is a Turing-complete extension of BV[13]with the exponen-tials of linear logic.In[10],we employed system NEL for concurrent conjunctive planning problems.Future work includes carrying our results to NEL and linear logic systems in the calculus of structures[12].Acknowledgments This work has been supported by the DFG Graduierten-kolleg446.I would like to thank Alessio Guglielmi,Steffen H¨o lldobler,Roy Dy-ckhoffand anonymous referees for valuable remarks and improvements. References1.Kai Br¨u nnler.Deep Inference and Symmetry in Classical Proofs.PhD thesis,Technische Universit¨a t Dresden,2003.2.Paola Bruscoli.A purely logical account of sequentiality in proof search.In Peter J.Stuckey,editor,Logic Programming,18th International Conference,volume2401 of Lecture Notes in Computer Science,pages302–316.Springer-Verlag,2002.3.M.Clavel,F.Dur´a n,S.Eker,P.Lincoln,N.Mart´ı-Oliet,J.Meseguer,and C.Tal-cott.The Maude2.0system.In Robert Nieuwenhuis,editor,Rewriting Techniques and Applications,Proceedings of the14th International Conference,,volume2706.Springer,2003.4.M.Clavel,F.Dur´a n,S.Eker,P.Lincoln,N.Mart´ı-Oliet,J.Meseguer,and C.Tal-cott.Maude2.1manual.Technical report,Computer Science Laboratory,SRI International,2004./manual/.5.Manuel Clavel,Francisco Dur´a n,Steven Eker,Jos´e Meseguer,and Mark-OliverStehr.Maude as a formal meta-tool.In Jeannette M.Wing,Jim Woodcock, and Jim Davies,editors,FM’99—Formal Methods,World Congress on Formal Methods in the Development of Computing Systems,Toulouse,France,September 20–24,1999Proceedings,Volume II,volume1709of Lecture Notes in Computer Science,pages1684–1703.Springer,1999.6.Alessio Guglielmi.A system of interaction and structure.Technical Report WV-02-10,TU Dresden,2002.to appear in ACM Transactions on Computational Logic.7.Alessio Guglielmi and Lutz Straßburger.A non-commutative extension of MELL.In M.Baaz and A.Voronkov,editors,LPAR2002,volume2514of Lecture Notes in Artificial Intelligence,pages231–246.Springer-Verlag,2002.8.Steffen H¨o lldobler and Ozan Kahramano˘g ulları.From the calculus of structures toterm rewriting systems.Technical Report WV-04-03,TU Dresden,2004.9.Ozan Kahramano˘g ulları.Implementing system BV of the calculus of structuresin Maude.In Proceedings of the ESSLLI-2004Student Session,Universit´e Henri Poincar´e,Nancy,France.Kluwer Academic Publishers,2004.10.Ozan Kahramano˘g ulları.Plans as formulae with a non-commutative operator.Technical report,TU Dresden,2004.11.Dale Miller,Gopalan Nadathur,Frank Pfenning,and Andre Scedrov.Uniformproofs as a foundation for logic programming.In Annals of Pure and Applied Logic,volume51,pages125–157.1991.12.Lutz Straßburger.Linear Logic and Noncommutativity in the Calculus of Struc-tures.PhD thesis,TU Dresden,2003.13.Lutz Straßburger.System NEL is undecidable.In Ruy De Queiroz,Elaine Pi-mentel,and Luc´ılia Figueiredo,editors,10th Workshop on Logic,Language,Infor-mation and Computation(WoLLIC),volume84of Electronic Notes in Theoretical Computer Science,2003.14.Alwen Fernanto Tiu.Properties of a logical system in the calculus of structures.Technical Report WV-01-06,Technische Universit¨a t Dresden,2001.。
BVIBusinessCompaniesAct,2004(asamended,2006)
VIRGIN IS LANDSBVI BUS INE SS COMPANIE S ACT, 2004i(as amended, 2006)ARRANGEMENT OF S ECTIONSPART I - PRELIMINARY PROVIS IONS1. Short title and commencement.2. Interpretation.3. Meaning of “company” and “foreign company”.4. Meaning of “subsidiary” and “holding company”.PART II - INCORPORATION, CAPACITY AND POWERSDivision 1 - Incorporation5. Types of company.6. Application to incorporate a company.7. Incorporation of a company.8. Registration of company as restricted purposes company.Division 2 - Memorandum and Articles9. Memorandum.10. Additional matters to be stated in memorandum of restricted purposes company.11. Effect of memorandum and articles.12. Amendment of memorandum and articles.13. Filing of notice of amendment of memorandum or articles.14 Amendment of memorandum with respect to restricted purposes.15. Restated memorandum or articles.16. Provision of copies of memorandum and articles to members.Division 3 - Company Names17. Required part of company name.17A. Exemption from section 17.18. Restrictions on company names.19. Company number as company name.20. Foreign character name.21. Company may change name.22. Registrar may direct change of name.23. Effect of change of name.24. Re-use of company names.25. Reservation of name.26. Use of company name.Division 4 - Capacity and Powers27. Separate legal personality.28. Capacity and powers.29. Validity of acts of company.30. Personal liability.31. Dealings between company and other persons.32. Constructive notice.PART III - S HARESDivision 1 - General33. Legal nature of shares.34. Rights attaching to shares and classes of shares.35. Series of shares.36. Types of shares.37. Par value and no par value shares.38. Bearer shares.39. Fractional shares.40. Change in number of shares company authorised to issue.40A. Division and combination of shares.41. Register of members.42. Register of members as evidence of legal title.43. Ratification of register of members.44. Share certificates.Division 2 - Issue of Shares45. Issue of shares.46. Pre-emptive rights.47. Consideration for shares.48. Shares issued for consideration other than money.49. Consent to issue of shares.50. Time of issue.51. Forfeiture of shares.Division 3 - Transfer of Shares52. Transferability of shares.53. Transfer of shares by operation of law.54. Method of transfer of registered share.55. Transfer of bearer share.Division 4 - Distributions56. Meaning of solvency test and distribution.57. Distributions.58. Recovery of distribution made when company did not satisfy solvency test.59. Company may purchase, redeem or otherwise acquire its own shares.60. Process for purchase, redemption or other acquisition of own s hares.61. Offer to one or more shareholders.62. Shares redeemed otherwise than at option of company.63. Purchases, redemptions or other acquisitions deemed not to be a distribution.64. Treasury shares.65. Transfer of treasury shares.66. Mortgages and charges of shares.Division 5 - Immobilisation of Bearer Shares67. Interpretation for this Division.68. Meaning of disabled bearer share.69. Issue of bearer shares and conversion of registered shares.70. Bearer shares not held by custodian disabled.71. Information concerning beneficial owner of bearer share.72. Duties of authorised custodian holding bearer share.73. Transfer of bearer shares.74. Procedure on a person ceasing to be a custodian.75. Transfer of beneficial ownership of, or interest in, bearer share.76. Notification of person having right to entitlements carried by bearer share.77. Regulations.PART IV - MEMBERS78. Meaning of “shareholder”, “guarantee member” and “unlimited member”.79. Company to have one or more members.80. Liability of members.81. Members’ resolutions.82. Meetings of members.83. Notice of meetings of members.84. Quorum for meetings of members.85. Voting trusts.86. Court may call meeting of members.87. Proceedings at meetings of members.88. Written resolutions.89. Service of notice on members.PART V - COMPANY ADMINIS TRATIONDivision 1 - Registered Office and Registered Agent90. Registered office.91. Registered agent.92. Change of registered office or registered agent.93. Resignation of registered agent.94. Registered agent ceasing to be eligible to act.95. Register of Approved Registered Agents.Division 2 - Company Records96. Documents to be kept at office of registered agent.97. Other records to be maintained by company.98. Financial records.99. Form of records.100. Inspection of records.101. Service of process, etc. on company.102. Books, records and common seal.Division 3 - General Provisions103. Contracts generally.104. Contracts before incorporation.105. Notes and bills of exchange.106. Power of attorney.107. Authentication or attestation.108. Company without members.PART VI - DIRECTORSDivision 1 - Management by Directors109. Management by directors.110. Committees of directors.Division 2 - Appointment, Removal and Resignation of Directors 111. Persons di squalified for appointment as director.112. Consent to act as director.113. Appointment of directors.114. Removal of directors.115. Resignation of director.116. Liability of former directors.117. Validity of acts of director.118. Register of directors.118A. Annual return for unlimited company not authorised to issue shares.119. Emoluments of directors.Division 3 - Duties of Directors and Conflicts120. Duties of directors.iThis is an u nofficial consolidation of the BVI Business C ompanies Act and the amendments thereto. Whilst every effort has been made to ensure correctness, no responsibility is assumed for any errors which may appear.Harney, Westwood & RiegelsCraigmuir C hambersP.O. B ox 71Road TownTortolaBritish Virgin IslandsЗа полным текстом данного нормативного документа обращайтесь в компаниюG.S.L. Law & Consulting***********。
比雅斯biesseworks中文使用说明书
意大利比雅斯集团意大利比雅斯集团 Page 1Rover A 系列机器使用说明 机器型号:Rover A 机器序列号:运行软件:Biesseworks 手册:Rover 系列机器使用手册 手册版本号: 2.1客户名称:_______________________日 期:_______________________意大利比雅斯集团意大利比雅斯集团 Page 2目 录1 机器操作1.1 机器安全装置································································第 5 页 1.2 机器X,Y,Z 轴的描述······················································第 6 页 1.3 控制面板········································································第 8 页 1.4 开机步骤及复位操作····················································第 10页 1.5 点动X,Y,Z 轴··································································第 11页2 Biesseworks 界面介绍2.1 Biesseworks 软件主界面的描述····································第 12页 2.2 主要图标描述································································第 14 页 2.3 输入密码········································································第 16 页3 钻孔设置3.1 软件上卸载钻头·····························································第 17 页 3.2 镜像加工的定义·····························································第 18 页 3.3 镜像钻孔的设置·····························································第 19页 3.4 安装钻头········································································第 20 页 3.5 创建钻孔加工································································第21页意大利比雅斯集团意大利比雅斯集团 Page 33.6 钻头参数设置··································································第 23页 3.7 软件里装载钻头······························································第 26页4 镂铣加工的设置4.1 卸载铣刀·········································································第 28页 4.2 插入或创建新的铣刀···················································第 29页 4.3 镂铣刀具参数的说明·····················································第30页 4.4 装载镂铣刀具·································································第 34页5 Biesseworks 软件编程5.1 创建钻孔程序·································································第35页 5.2 创建镂铣程序·································································第38页 5.3 “重复数据”页面·························································第41页 5.4 “从几何图形的镂铣加工”的编程······························第42页 5.5 “袋型”加工的编程·····················································第45页 5.6 批量钻孔········································································第49页 5.7 镂铣文字的建立····························································第51页意大利比雅斯集团意大利比雅斯集团 Page 46 机器操作6.1 刀具长度调整·································································第55页 6.2 安装垫板·········································································第62页 6.3 托架式台面的设置·························································第64页7 机器保养章节7.1 机器的维护保养·····························································第68页 7.2 Biesseworks 软件备份‐‐‐备份机器数据操作·················第88页 7.3 Biesseworks 软件备份‐‐‐恢复机器数据操作·················第92页意大利比雅斯集团意大利比雅斯集团 Page 51.1机器安全装置如图:A :紧急停止开关(按动后机器立即切断控制电压,机器停止 运行)B :安全拉绳开关(拉动后立即切断控制电压,机器停止运行)C :安全防护罩(防止加工残屑飞出伤害操作人员)D :气压截止阀(关闭后立即切断机器气动部分的气压)E :防护栅栏(将操作人员隔离在危险区域外的安全装置)F :安全地毯(当机器在运动过程中,操作人员进入危险区域并踩踏到安全地毯时,机器会立即停止工作)意大利比雅斯集团意大利比雅斯集团 Page 61.2机器的X,Y,Z 轴描述机器的X,Y,Z 各轴的正,负方向按如图所示方式定义;机器原点的定义如图为ATS (分体)台面靠挡定义;意大利比雅斯集团意大利比雅斯集团 Page 7如图为FT (整体)台面的靠挡定义;意大利比雅斯集团意大利比雅斯集团 Page 81.3 操作面板如图为典型面板控制示例,具体解释如下:A1:紧急停止开关A2:关闭控制电源A3:启动控制电源A4:真空泵压力指示灯A5:锁定加工工件A6:手动换刀选择开关A7:正向点动按钮A8:加速移动键A9:负方向点动按钮A10:靠挡位选择软键A11:异型夹头启用键A12:废料传送带启动键A13:抬板器启动键意大利比雅斯集团意大利比雅斯集团 Page 9A14:刀具库仓盖开启按钮(选配)A15:主轴复位按钮A16:刀具库自检软键A17:启用垫板功能按钮A18:手动润滑按钮A19:EPS 台面复位软键(选配)A20:1,停止2,复位3,清除4,启动意大利比雅斯集团意大利比雅斯集团 Page 10 1.4机器开机步骤及复位操作开机步骤:1, 打开电柜箱上的主电源开关2, 等待操作系统及NC 的操作软件均已启动完毕3, 等待“Quote ”页面启动完毕4, 检查机器的急停开关是否被按下;检查所有的安全装置,气压及换刀选择开关是否被打到“换刀“模式5, 按下白色的“循环启动”的按钮,白色按钮应该会亮。
破冰等级
suggestions for the ice rules discussed.
Key words: ice strengthening; ice class; northern Baltic; polar region; first-year ice; multi-year ice
0 前言
近年来,世界冰级船队尤其是冰级油船队的发 展正处于一个快速上升期。冰区船舶需求量的上升 主要源于俄罗斯原油的强劲出口、北极地区油气资 源开采步伐的加快,以及“北方航线”(Northern Sea route,NSR)通航可能性的增加。
鉴于各船级社高等级冰区加强规范之间的不 一致性,IACS 制订了统一的极地船级,即 IACS PC1~PC7。这无疑是冰区规范发展史上具有里程碑 意义的重大事件。
各主要船级社、IACS 以及相关国家机构等都 已制定了一系列相关规范和法规条文,以保证冰区 船舶航行安全。此类规范、规定首先是依据各海区 冰情统计资料对其划分冰级,以便进一步对服务于 该航区内的冰区船舶划分船级,提出结构加强、推 进系统等方面的对应要求。其中,明确规定船舶冰 级的选择是船东责任。冰级定义是船舶冰区加强要 求制订与实施的先决条件,对船舶结构型式、结构 尺寸、功率需求等产生决定性影响。
等效冰厚/ m 均值 标准差
0.607 0.501 0.489 0.376
0.210 0.185 0.17 0.152
FSICR 之所以将 IA Super、IA、IB、IC 冰级对 应冰厚设定为 1.0 m、0.8 m、0.6 m、0.4 m,并规定 波罗的海区内 IA Super、IA 级船舶可全年航行,而 IB、IC 级船舶则只可季节性限制通航,即本于此。 2.2 冰级选择
表 3 ABS 极地水域破冰船冰级定义[5]
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IAS 2 International Accounting Standard 2InventoriesThis version includes amendments resulting from IFRSs issued up to 31 December 2009.IAS 2 Inventories was issued by the International Accounting Standards Committee in December 1993. It replaced IAS 2 Valuation and Presentation of Inventories in the Context of the Historical Cost System (originally issued in October 1975).The Standing Interpretations Committee developed SIC-1 Consistency—Different Cost Formulas for Inventories, which was issued in December 1997.Limited amendments to IAS 2 were made in 1999 and 2000.In April 2001 the International Accounting Standards Board (IASB) resolved that all Standards and Interpretations issued under previous Constitutions continued to be applicable unless and until they were amended or withdrawn.In December 2003 the IASB issued a revised IAS 2, which also replaced SIC-1.Since then IAS 2 has been amended by the following IFRSs:•IFRS8Operating Segments (issued November 2006)*•Improvements to IFRSs (issued May 2008)*•IFRS9 Financial Instruments (issued November 2009).†The following Interpretation refers to IAS 2:•SIC-32 Intangible Assets—Web Site Costs (issued March 2002 and subsequently amended).*effective date 1 January 2009†effective date 1 January 2013 (earlier application permitted)© IASCF A321IAS 2A322© IASCFC ONTENTSparagraphsINTRODUCTION IN1–IN17INTERNATIONAL ACCOUNTING STANDARD 2INVENTORIESOBJECTIVE1SCOPE2–5DEFINITIONS6–8MEASUREMENT OF INVENTORIES9–33Cost of inventories10–22Costs of purchase11Costs of conversion12–14Other costs15–18Cost of inventories of a service provider19Cost of agricultural produce harvested from biological assets20Techniques for the measurement of cost21–22Cost formulas23–27Net realisable value28–33RECOGNITION AS AN EXPENSE34–35DISCLOSURE36–39EFFECTIVE DATE40–40A WITHDRAWAL OF OTHER PRONOUNCEMENTS41–42APPENDIXAmendments to other pronouncementsAPPROVAL BY THE BOARD OF IAS 2 ISSUED IN DECEMBER 2003BASIS FOR CONCLUSIONS FOR THE ACCOMPANYING DOCUMENTS LISTED BELOW, SEE PART B OF THIS EDITIONIAS 2 International Accounting Standard 2 Inventories (IAS 2) is set out in paragraphs 1–42 and the Appendix. All the paragraphs have equal authority but retain the IASC format of the Standard when it was adopted by the IASB. IAS 2 should be read in the context of its objective and the Basis for Conclusions, the Pref ace to International Financial Reporting Standards and the Framework f or the Preparation and Presentation of Financial Statements. IAS8Accounting Policies, Changes in Accounting Estimates and Errors provides a basis for selecting and applying accounting policies in the absence of explicit guidance.© IASCF A323IAS 2IntroductionIN1International Accounting Standard 2 Inventories (IAS 2) replaces IAS 2 Inventories (revised in 1993) and should be applied for annual periods beginning on or after 1January 2005. Earlier application is encouraged. The Standard also supersedes SIC-1 Consistency—Different Cost Formulas for Inventories.Reasons for revising IAS 2IN2The International Accounting Standards Board developed this revised IAS 2 as part of its project on Improvements to International Accounting Standards.The project was undertaken in the light of queries and criticisms raised in relation to the Standards by securities regulators, professional accountants and other interested parties. The objectives of the project were to reduce or eliminate alternatives, redundancies and conflicts within the Standards, to deal with some convergence issues and to make other improvements.IN3For IAS 2 the Board’s main objective was a limited revision to reduce alternatives for the measurement of inventories. The Board did not reconsider the fundamental approach to accounting for inventories contained in IAS2.The main changesIN4The main changes from the previous version of IAS 2 are described below.Objective and scopeIN5The objective and scope paragraphs of IAS 2 were amended by removing the words ‘held under the historical cost system’, to clarify that the Standard applies to all inventories that are not specifically excluded from its scope.Scope clarificationIN6The Standard clarifies that some types of inventories are outside its scope while certain other types of inventories are exempted only from the measurement requirements in the Standard.IN7Paragraph 3 establishes a clear distinction between those inventories that are entirely outside the scope of the Standard (described in paragraph 2) and those inventories that are outside the scope of the measurement requirements but within the scope of the other requirements in the Standard.A324© IASCFIAS 2Scope exemptionsProducers of agricultural and forest products, agricultural produceafter harvest and minerals and mineral productsIN8The Standard does not apply to the measurement of inventories of producers of agricultural and forest products, agricultural produce after harvest, and minerals and mineral products, to the extent that they are measured at net realisable value in accordance with well-established industry practices. The previous version of IAS 2 was amended to replace the words ‘mineral ores’ with ‘minerals and mineral products’ to clarify that the scope exemption is not limited to the early stage of extraction of mineral ores.Inventories of commodity broker-tradersIN9The Standard does not apply to the measurement of inventories of commodity broker-traders to the extent that they are measured at fair value less costs to sell.Cost of inventoriesCosts of purchaseIN10IAS 2 does not permit exchange differences arising directly on the recent acquisition of inventories invoiced in a foreign currency to be included in the costs of purchase of inventories. This change from the previous version of IAS 2 resulted from the elimination of the allowed alternative treatment of capitalising certain exchange differences in IAS 21 The Effects of Changes in Foreign Exchange Rates.That alternative had already been largely restricted in its application by SIC-11 Foreign Exchange—Capitalisation of Losses from Severe Currency Devaluations. SIC-11 has been superseded as a result of the revision of IAS21 in 2003.Other costsIN11Paragraph 18 was inserted to clarify that when inventories are purchased with deferred settlement terms, the difference between the purchase price for normal credit terms and the amount paid is recognised as interest expense over the period of financing.Cost formulasConsistencyIN12The Standard incorporates the requirements of SIC-1 Consistency—Dif erent Cost Formulas for Inventories that an entity use the same cost formula for all inventories having a similar nature and use to the entity. SIC-1 is superseded.Prohibition of LIFO as a cost formulaIN13The Standard does not permit the use of the last-in, first-out (LIFO) formula to measure the cost of inventories.© IASCF A325IAS 2Recognition as an expenseIN14The Standard eliminates the reference to the matching principle.IN15The Standard describes the circumstances that would trigger a reversal of a write-down of inventories recognised in a prior period.DisclosureInventories carried at fair value less costs to sellIN16The Standard requires disclosure of the carrying amount of inventories carried at fair value less costs to sell.Write-down of inventoriesIN17The Standard requires disclosure of the amount of any write-down of inventories recognised as an expense in the period and eliminates the requirement to disclose the amount of inventories carried at net realisable value.A326© IASCFIAS 2 International Accounting Standard 2InventoriesObjective1The objective of this Standard is to prescribe the accounting treatment for inventories. A primary issue in accounting for inventories is the amount of cost to be recognised as an asset and carried forward until the related revenues are recognised. This Standard provides guidance on the determination of cost and its subsequent recognition as an expense, including any write-down to net realisable value. It also provides guidance on the cost formulas that are used to assign costs to inventories.Scope2This Standard applies to all inventories, except:(a)work in prog ress arising under construction contracts, including directlyrelated service contracts (see IAS 11 Construction Contracts);(b)financial instruments (see IAS 32 Financial Instruments: Presentation, IAS39Financial Instruments: Recognition and Measurement and IFRS 9 FinancialInstruments); and(c)biological assets related to agricultural activity and agricultural produce atthe point of harvest (see IAS 41 Agriculture).3This Standard does not apply to the measurement of inventories held by:(a)producers of ag ricultural and forest products, ag ricultural produce afterharvest, and minerals and mineral products, to the extent that they aremeasured at net realisable value in accordance with well-establishedpractices in those industries. When such inventories are measured at netrealisable value, changes in that value are recognised in profit or loss in theperiod of the change.(b)commodity broker-traders who measure their inventories at fair value lesscosts to sell. When such inventories are measured at fair value less costs tosell, changes in fair value less costs to sell are recognised in profit or loss inthe period of the change.4The inventories referred to in paragraph 3(a) are measured at net realisable value at certain stages of production. This occurs, for example, when agricultural crops have been harvested or minerals have been extracted and sale is assured under a forward contract or a government guarantee, or when an active market exists and there is a negligible risk of failure to sell. These inventories are excluded from only the measurement requirements of this Standard.5Broker-traders are those who buy or sell commodities for others or on their own account. The inventories referred to in paragraph 3(b) are principally acquired with the purpose of selling in the near future and generating a profit from© IASCF A327IAS 2fluctuations in price or broker-traders’ margin. When these inventories are measured at fair value less costs to sell, they are excluded from only the measurement requirements of this Standard.Definitions6The following terms are used in this Standard with the meanings specified: Inventories are assets:(a)held for sale in the ordinary course of business;(b)in the process of production for such sale; or(c)in the form of materials or supplies to be consumed in the productionprocess or in the rendering of services.Net realisable value is the estimated selling price in the ordinary course of business less the estimated costs of completion and the estimated costs necessary to make the sale.Fair value is the amount for which an asset could be exchang ed, or a liability settled, between knowledgeable, willing parties in an arm’s length transaction.7Net realisable value refers to the net amount that an entity expects to realise from the sale of inventory in the ordinary course of business. Fair value reflects the amount for which the same inventory could be exchanged between knowledgeable and willing buyers and sellers in the marketplace. The former is an entity-specific value; the latter is not. Net realisable value for inventories may not equal fair value less costs to sell.8Inventories encompass goods purchased and held for resale including, for example, merchandise purchased by a retailer and held for resale, or land and other property held for resale. Inventories also encompass finished goods produced, or work in progress being produced, by the entity and include materials and supplies awaiting use in the production process. In the case of a service provider, inventories include the costs of the service, as described in paragraph 19, for which the entity has not yet recognised the related revenue (see IAS18 Revenue).Measurement of inventories9Inventories shall be measured at the lower of cost and net realisable value.Cost of inventories10The cost of inventories shall comprise all costs of purchase, costs of conversion and other costs incurred in bringing the inventories to their present location and condition.A328© IASCFIAS 2Costs of purchase11The costs of purchase of inventories comprise the purchase price, import duties and other taxes (other than those subsequently recoverable by the entity from the taxing authorities), and transport, handling and other costs directly attributable to the acquisition of finished goods, materials and services. Trade discounts, rebates and other similar items are deducted in determining the costs of purchase.Costs of conversion12The costs of conversion of inventories include costs directly related to the units of production, such as direct labour. They also include a systematic allocation of fixed and variable production overheads that are incurred in converting materials into finished goods. Fixed production overheads are those indirect costs of production that remain relatively constant regardless of the volume of production, such as depreciation and maintenance of factory buildings and equipment, and the cost of factory management and administration. Variable production overheads are those indirect costs of production that vary directly, or nearly directly, with the volume of production, such as indirect materials and indirect labour.13The allocation of fixed production overheads to the costs of conversion is based on the normal capacity of the production facilities. Normal capacity is the production expected to be achieved on average over a number of periods or seasons under normal circumstances, taking into account the loss of capacity resulting from planned maintenance. The actual level of production may be used if it approximates normal capacity. The amount of fixed overhead allocated to each unit of production is not increased as a consequence of low production or idle plant. Unallocated overheads are recognised as an expense in the period in which they are incurred. In periods of abnormally high production, the amount of fixed overhead allocated to each unit of production is decreased so that inventories are not measured above cost. Variable production overheads are allocated to each unit of production on the basis of the actual use of the production facilities.14 A production process may result in more than one product being producedsimultaneously. This is the case, for example, when joint products are produced or when there is a main product and a by-product. When the costs of conversion of each product are not separately identifiable, they are allocated between the products on a rational and consistent basis. The allocation may be based, for example, on the relative sales value of each product either at the stage in the production process when the products become separately identifiable, or at the completion of production. Most by-products, by their nature, are immaterial.When this is the case, they are often measured at net realisable value and this value is deducted from the cost of the main product. As a result, the carrying amount of the main product is not materially different from its cost.© IASCF A329IAS 2Other costs15Other costs are included in the cost of inventories only to the extent that they are incurred in bringing the inventories to their present location and condition.For example, it may be appropriate to include non-production overheads or the costs of designing products for specific customers in the cost of inventories.16Examples of costs excluded from the cost of inventories and recognised as expenses in the period in which they are incurred are:(a)abnormal amounts of wasted materials, labour or other production costs;(b)storage costs, unless those costs are necessary in the production processbefore a further production stage;(c)administrative overheads that do not contribute to bringing inventories totheir present location and condition; and(d)selling costs.17IAS23 Borrowing Costs identifies limited circumstances where borrowing costs are included in the cost of inventories.18An entity may purchase inventories on deferred settlement terms. When the arrangement effectively contains a financing element, that element, for examplea difference between the purchase price for normal credit terms and the amountpaid, is recognised as interest expense over the period of the financing.Cost of inventories of a service provider19To the extent that service providers have inventories, they measure them at the costs of their production. These costs consist primarily of the labour and other costs of personnel directly engaged in providing the service, including supervisory personnel, and attributable overheads. Labour and other costs relating to sales and general administrative personnel are not included but are recognised as expenses in the period in which they are incurred. The cost of inventories of a service provider does not include profit margins or non-attributable overheads that are often factored into prices charged by service providers.Cost of agricultural produce harvested from biological assets20In accordance with IAS 41 Agriculture inventories comprising agricultural produce that an entity has harvested from its biological assets are measured on initial recognition at their fair value less costs to sell at the point of harvest. This is the cost of the inventories at that date for application of this Standard.Techniques for the measurement of cost21Techniques for the measurement of the cost of inventories, such as the standard cost method or the retail method, may be used for convenience if the results approximate cost. Standard costs take into account normal levels of materials and supplies, labour, efficiency and capacity utilisation. They are regularly reviewed and, if necessary, revised in the light of current conditions.A330© IASCFIAS 2 22The retail method is often used in the retail industry for measuring inventories of large numbers of rapidly changing items with similar margins for which it is impracticable to use other costing methods. The cost of the inventory is determined by reducing the sales value of the inventory by the appropriate percentage gross margin. The percentage used takes into consideration inventory that has been marked down to below its original selling price. An average percentage for each retail department is often used.Cost formulas23The cost of inventories of items that are not ordinarily interchangeable and goods or services produced and seg reg ated for specific projects shall be assig ned by using specific identification of their individual costs.24Specific identification of cost means that specific costs are attributed to identified items of inventory. This is the appropriate treatment for items that are segregated for a specific project, regardless of whether they have been bought or produced. However, specific identification of costs is inappropriate when there are large numbers of items of inventory that are ordinarily interchangeable.In such circumstances, the method of selecting those items that remain in inventories could be used to obtain predetermined effects on profit or loss.25The cost of inventories, other than those dealt with in parag raph 23, shall be assigned by using the first-in, first-out (FIFO) or weighted average cost formula.An entity shall use the same cost formula for all inventories having a similar nature and use to the entity. For inventories with a different nature or use, different cost formulas may be justified.26For example, inventories used in one operating segment may have a use to the entity different from the same type of inventories used in another operating segment. However, a difference in geographical location of inventories (or in the respective tax rules), by itself, is not sufficient to justify the use of different cost formulas.27The FIFO formula assumes that the items of inventory that were purchased or produced first are sold first, and consequently the items remaining in inventory at the end of the period are those most recently purchased or produced. Under the weighted average cost formula, the cost of each item is determined from the weighted average of the cost of similar items at the beginning of a period and the cost of similar items purchased or produced during the period. The average may be calculated on a periodic basis, or as each additional shipment is received, depending upon the circumstances of the entity.Net realisable value28The cost of inventories may not be recoverable if those inventories are damaged, if they have become wholly or partially obsolete, or if their selling prices have declined. The cost of inventories may also not be recoverable if the estimated costs of completion or the estimated costs to be incurred to make the sale have increased. The practice of writing inventories down below cost to net realisable value is consistent with the view that assets should not be carried in excess of amounts expected to be realised from their sale or use.© IASCF A331IAS 229Inventories are usually written down to net realisable value item by item. In some circumstances, however, it may be appropriate to group similar or related items.This may be the case with items of inventory relating to the same product line that have similar purposes or end uses, are produced and marketed in the same geographical area, and cannot be practicably evaluated separately from other items in that product line. It is not appropriate to write inventories down on the basis of a classification of inventory, for example, finished goods, or all the inventories in a particular operating segment. Service providers generally accumulate costs in respect of each service for which a separate selling price is charged. Therefore, each such service is treated as a separate item.30Estimates of net realisable value are based on the most reliable evidence available at the time the estimates are made, of the amount the inventories are expected to realise. These estimates take into consideration fluctuations of price or cost directly relating to events occurring after the end of the period to the extent that such events confirm conditions existing at the end of the period.31Estimates of net realisable value also take into consideration the purpose for which the inventory is held. For example, the net realisable value of the quantity of inventory held to satisfy firm sales or service contracts is based on the contract price. If the sales contracts are for less than the inventory quantities held, the net realisable value of the excess is based on general selling prices. Provisions may arise from firm sales contracts in excess of inventory quantities held or from firm purchase contracts. Such provisions are dealt with under IAS 37 Provisions, Contingent Liabilities and Contingent Assets.32Materials and other supplies held for use in the production of inventories are not written down below cost if the finished products in which they will be incorporated are expected to be sold at or above cost. However, when a decline in the price of materials indicates that the cost of the finished products exceeds net realisable value, the materials are written down to net realisable value. In such circumstances, the replacement cost of the materials may be the best available measure of their net realisable value.33 A new assessment is made of net realisable value in each subsequent period.When the circumstances that previously caused inventories to be written down below cost no longer exist or when there is clear evidence of an increase in net realisable value because of changed economic circumstances, the amount of the write-down is reversed (ie the reversal is limited to the amount of the original write-down) so that the new carrying amount is the lower of the cost and the revised net realisable value. This occurs, for example, when an item of inventory that is carried at net realisable value, because its selling price has declined, is still on hand in a subsequent period and its selling price has increased. Recognition as an expense34When inventories are sold, the carrying amount of those inventories shall be recognised as an expense in the period in which the related revenue is recognised.The amount of any write-down of inventories to net realisable value and all losses of inventories shall be recognised as an expense in the period the write-down orA332© IASCFIAS 2loss occurs. The amount of any reversal of any write-down of inventories, arising from an increase in net realisable value, shall be recognised as a reduction in the amount of inventories recog nised as an expense in the period in which the reversal occurs.35Some inventories may be allocated to other asset accounts, for example, inventory used as a component of self-constructed property, plant or equipment.Inventories allocated to another asset in this way are recognised as an expense during the useful life of that asset.Disclosure36The financial statements shall disclose:(a)the accounting policies adopted in measuring inventories, including thecost formula used;(b)the total carrying amount of inventories and the carrying amount inclassifications appropriate to the entity;(c)the carrying amount of inventories carried at fair value less costs to sell;(d)the amount of inventories recognised as an expense during the period;(e)the amount of any write-down of inventories recognised as an expense inthe period in accordance with paragraph 34;(f)the amount of any reversal of any write-down that is recog nised as areduction in the amount of inventories recognised as expense in the periodin accordance with paragraph 34;(g)the circumstances or events that led to the reversal of a write-down ofinventories in accordance with paragraph 34; and(h)the carrying amount of inventories pledged as security for liabilities.37Information about the carrying amounts held in different classifications of inventories and the extent of the changes in these assets is useful to financial statement users. Common classifications of inventories are merchandise, production supplies, materials, work in progress and finished goods.The inventories of a service provider may be described as work in progress.38The amount of inventories recognised as an expense during the period, which is often referred to as cost of sales, consists of those costs previously included in the measurement of inventory that has now been sold and unallocated production overheads and abnormal amounts of production costs of inventories.The circumstances of the entity may also warrant the inclusion of other amounts, such as distribution costs.© IASCF A333IAS 239Some entities adopt a format for profit or loss that results in amounts being disclosed other than the cost of inventories recognised as an expense during the period. Under this format, an entity presents an analysis of expenses using a classification based on the nature of expenses. In this case, the entity discloses the costs recognised as an expense for raw materials and consumables, labour costs and other costs together with the amount of the net change in inventories for the period.Effective date40An entity shall apply this Standard for annual periods beginning on or after 1January2005. Earlier application is encouraged. If an entity applies this Standard for a period beginning before 1 January 2005, it shall disclose that fact. 40A IFRS 9, issued in November 2009, amended paragraph 2(b). An entity shall apply that amendment when it applies IFRS 9.Withdrawal of other pronouncements41This Standard supersedes IAS2 Inventories (revised in 1993).42This Standard supersedes SIC-1 Consistency—Different Cost Formulas for Inventories.A334© IASCF。