IEC60950-1报告模板

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60950-1安规测试

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2.1.1.1
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2.1.1.1 (2.1.1.1d) : TNV
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IEC-6050中文版

適用否? Ye s Ye s Ye s Ye s YES Ye s Ye s
IEC 60950-1:2001介紹
- Electric shock
電殛的發生情形是因為有電流通過人體,只要有數毫安培的電流,即可對正常健康人造成影響,並且有可能因不自覺地反應而造成間接性危險。當然,更大的電流會造成更危險的情形。一般而言,在乾燥情形下,小於40Vpeak或60Vdc的電壓,通常視為不具危險的電壓。但是,可被觸碰的零件或是提把皆應接至大地或是將其適當地隔離之。
下述危險的傷害, 人體泛指使用者及服務人員此二種類
型的人:
危險的種類電殛 ( El ect r i c s hock) 危險能量 ( Ener gy hazar ds ) 火災 ( Fi r e) 機械及熱的危險 ( Mechani cal and heat hazar ds ) 幅射危險 ( Radi at i on hazar ds ) 化學的危險 ( Chemi cal hazar ds ) 材料及零件 ( Mat er i al s and component s )
IEC60950-1:2001介紹
4.3 功能接地(Functional Earthing)規定;若可觸及或其他的導體零件必須要功能接地者，下列的所有要求可提供:
a.) 功能接地電路與危險電壓電路的電性隔離，須使用下列至少一種的方法來達到: － _____雙_重__或__加_強____絕緣－ _基__本_絕緣及使用保護罩(Protective screen)連接到PE端子 b.) 功能接地電路允許接到__P_E_端_子__或 _P_r_o_te_c_t_iv_e_B_o_n_d_i_ng__c_o_n_d_u_ct_o_r c.) 只作功能接地的接線端子不可標示IEC 60417 No.___5_0_1_7_，或 ___5_0_19__的符號，除非該功能接地的接線端子是由如 terminal block 零件，或半成品所提供，則用IEC 60417 No._5_0_1_7___的符號標示是可接受的。Note: d.) 設備內的功能接地的導線不能用__黃__綠_色___線。 e.) 若電源線使用__黃__綠__色__絕緣線僅作為功能接地連接，則設備不能標示___C__la_s_s_I_I 的符號。

60950-1_2ndEd_Analysis_rev_May 21 2010

CERTIFICATION IMPACT ANALYSIS:UL/IEC 60950-1, SECOND EDITION -Safety of Information Technology EquipmentTechnical Editor: Thomas M. BurkePrincipal Engineer – ITE/HT Business SectorUnderwriters Laboratories Inc.This analysis is intended to identify and analyze the impact of notable differences between the latest versions of the UL and IEC Standards for Safety of Information Technology Equipment (ITE) and their predecessors. In particular, IEC 60950-1 Second Edition and UL 60950-1 Second Edition are being analyzed and compared to their predecessors, IEC 60950-1 First Edition and UL 60950-1 First Edition, respectively.This analysis will permit persons already familiar with IEC 60950-1 and UL 60950-1 to become familiar with the impact on ITE of the latest IEC and UL ITE Safety Standards. Other select observations are included that may be of interest to the reader. This analysis may be updated periodically as additional information on the application of the new Standards becomes known.See informative Annex BB (Changes in Second Edition) of IEC 60950-1 for additional information on changes associated with IEC 60950-1, Second Edition.BackgroundIEC 60950-1 is the International Standard for Safety of Information Technology Equipment. It encompasses under its scope information technology equipment, communications equipment, office appliances and multi-media equipment for use in the home, office, business, school, computer room (data center) and similar locations.The latest version of IEC 60950-1, its Second Edition, was published in December 2005. It supersedes its predecessor, IEC 60950-1, First Edition, originally published in 2001.IEC 60950-1 was developed by IEC Technical Committee (TC) 108 (previously TC74), MT2: Safety and Energy Efficiency of Information Technology Equipment. IEC TC 108 MT2 also developed/maintains IEC 60950-21, Information technology equipment – Safety – Part 21: Remote power feeding; IEC 60950-22, Safety of Information Technology Equipment – Part 22: Equipment Installed Outdoors; IEC 60950-23, Safety of Information Technology Equipment – Part 23: Large Data Storage Equipment; IEC 60990, Methods of Measurement of Touch Current and Protective Conductor Current; IEC TR 62102, Electrical Safety - Classification of Interfaces for Equipment to be Connected to Information Technology and Communications Technology Networks; and IEC 62151, Safety of Equipment Electrically Connected to a Telecommunication Network.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.In the U.S. and Canada the ITE Bi-National Standard (BNS), formally designated CSA C22.2 No. 60950-1/UL 60950-1, Second Edition, is based on the Second Edition of IEC 60950-1, and like its predecessors includes U.S./Canadian National Differences to address National requirements not in the base IEC document. This Standard was published on March 27, 2007.The technical content of the BNS is developed and maintained by the Technical Harmonization Committee (THC), Maintenance Team 2 (MT2), which consists of representation from UL, CSA, and the key U.S. and Canadian IT and communications equipment industry groups.The Effective Dates for formal implementation of UL 60950-x Standards are outlined on the UL website –/global/eng/pages/offerings/industries/hightech/informationtechnology/dates/ .Note - Subsequent to the Second Edition of IEC 60950-1, a First Amendment to the Second Edition has been issued as of December 2009. A separate Certification Impact Analysis will be issued to cover Amendment No. 1.Summary of key changes associated with Revision set dated May 21, 2010Below are the key updates to this Analysis associated with the latest revision. (Additional editorial changes/updates also were incorporated into the document.)• 5.1.2.3: Revised analysis of application of simultaneous multiple connections to anA.C. Mains Supply.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Notes to this Analysis:• Unless otherwise noted, all Sub-clause/Annex references are to IEC 60950-1, Second Edition.• Discussion of changes and differences associated with IEC 60950-1, Second Edition is in plain text.• Discussion of changes and differences associated with the Bi-National Standard, CSA C22.2 No. 60950-1/UL 60950-1, Second Edition is in bold.Explanation of Impact Statements:Statement ImpactNone Virtually no impact on the presentcertification practice of most ITE due to thechange.Minor* Limited impact on the present certificationpractice of some, or all ITE due to thechange.Considerable* Potentially considerable impact on thepresent certification practice for some, or allITE due to the change, as indicated.For new/revised requirements that are more onerous than existing requirements, the Impact Statement (Minor, Considerable) will be followed by a (+). For new/revised requirements that are less onerous than existing requirements, the Impact Statement (Minor, Considerable) will be followed by a (-). No symbol next to a Minor statement indicates that although there could be impact, it is indeterminate whether it will be slightly more or less.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Clause 0 (Principles of Safety) Sub-clause DiscussionImpact0.1General Principles of SafetyNew statement added to General Principles of Safety that dimensioning ofinsulation spacings should take into account possible reductions of spacings by manufacturing tolerances, or deformation by handling,manufacturing, transport and normal use.None. Principle of Safety. The principle already isincorporated into the level of requirements in thisminimum safety standard or is assumed to have been considered by manufacturer based on qualitymanufacturing processes typically associated with the Industry.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Clause 1 (General) Sub-clauseDiscussionImpact1.1.1Equipment Covered by this StandardFor the first time theStandard explicitly covers under its scope ITE components andsubassemblies, such as component switch modepower supplies. Scope states that such components and subassemblies may notcomply with “every aspect of the standard, provided that the complete information technology equipment, incorporating such components andsubassemblies, does comply.”This same consideration is inherent to UL’s Recognized Component Conditions of Acceptability. None. Scope. Generally reflects present practice since ITE components and subassemblies have been investigated to IEC 60950-based standards and theirpredecessors for many years.However, this addition provides justification for allowing more ITEcomponents to be provided with an IECEE CBReport/Certificate associated with IEC 60950-1.The previousrequirements for Acoustic Pressure Limiting have been revised andrelocated. Now, instead of being located in 6.5, they are located in Annex NAD, Acoustic Tests. A reference to therequirements has been added into 1.1.1, which also states that the requirements apply to acoustic outputs atcommunication receivers and similar devices used for voicetelecommunication,regardless of transmission medium (e.g.,telecommunication network, cabledistribution network, wireless network, etc.).Minor (+). Potentially, there could be someimpact on manufacturers of ITE with acousticoutputs and intended for connection totransmission mediums other thantelecommunication (like cable and wireless) since the Standard was not explicit before fortransmission media other than telecommunication networks.However, industrypractice generally has been to design ITE with acoustic outputsassociated with voice communication to the appropriate acoustic requirements, even ifCopyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clauseDiscussionImpactThere have been some other modifications of the actual requirements (mainly reintroducing legacy test methods), although the acoustic limits remain the same. See Annex NAD for more discussion.[Note – For Europe, the Second Edition of EN 60950-1 in its 1.3.Z1 (Exposure to excessive sound pressure) now requires ITE to bedesigned and constructed as to present no danger under normal or faultconditions with regards to protection againstexposure to excessive sound pressures fromheadphones or earphones. It references EN 50332-1 and -1, Sound System Equipment: Headphones and earphones associated with portable audio equipment. The fullimplementation/impact of this requirement isunknown at this time, i.e., range of applicability to ITE.]these other transmission mediums are used, so the true impact likely will be relatively minor. See Annex NAD.1.2.2.1Normal LoadReworked definition of“Normal Load” emphasizing that the definition is used for testing purposes, and ifconditions of actual use can be reasonably expected to exceed those recommended by the manufacturer, the more severe conditions are applicable. None. Definition.Clarification, and generally consistent with present practice.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clauseDiscussionImpactAlso, clarifies definition with respect to ITE intended for non-continuous operation. Associated revisions related to non-continuous operation also made to 1.2.2.2, 1.2.2.3, 1.7.3, 4.5.2 and 5.3.8.None. Definition. Revisions made in other areas of the Standard with respect to ITE intended for non-continuous operation (1.2.2.2, 1.2.2.3, 1.7.3, 4.5.2, 5.3.8) and to align with the reviseddefinition result in a similar level of requirements, but should simplify application. 1.2.2.2Rated Operating TimeClarifies that the Rated Operating Time is the“maximum operating time assigned to the equipment by the manufacturer.” None. Definition.Clarification, and generally consistent with present practice.1.2.2.3Rated Resting TimeNew term/definition for “Rating Resting Time” to complement the existing definition of “RatedOperating Time” and to correlate with reviseddefinition of Normal Load, 1.2.2.1.None. Definition.Clarification, and generally consistent with present practice.1.2.5.3Pluggable EquipmentNew higher level term/ definition above Pluggable Equipment Type A andPluggable Equipment Type B. None. Definition. Editorial.1.2.8.3Mains SupplyNew higher-level term/ definition above AC Mains Supply and DC Mains Supply. None. Definition. Editorial.1.2.9.7RMS Working VoltageNew term/definition for “RMS Working Voltage” to complement existing definitions of WorkingVoltage and Peak Working Voltage.None. Definition.Clarification, and generally consistent with present practice.1.2.10.4Solid InsulationNew term/ definition for“Solid Insulation,” defined as “material that provideselectrical insulation between two opposite surfaces, not along an outer surface.” None. Definition.Clarification, and generally consistent with present practice.1.2.13.15 Cheesecloth New term/definition for “Cheesecloth.”None. Definition. Consistent with present practice.1.2.13.16Wrapping TissueNew term/definition for “Wrapping Tissue.”None. Definition. Consistent with present practice.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clauseDiscussionImpact1.2.13.17Protective Current RatingNew term/definition for“Protective Current Rating,” which is defined as “the rating of an overcurrent protective device that is known or assumed to be in place to protect a circuit.”See 2.6.3.3 for associated requirements.None. Definition. Consistent with present practice.1.4.14Simulated Faults and Abnormal ConditionsNew clarification added that “The failure of Functional Insulation is simulated only when required by 5.3.4 c).”Note - For the FirstAmendment to IEC 60950-1 2nd Edition, revisions have been made to 2.8, Safety Interlocks, to clarify the requirements for such fault testing in safety interlock circuits.Minor (-). Clarification.Attempts to limit the amount of short circuit testing between trace-trace on printed circuits boardsassociated with Functional Insulation and concentrate on component faults, unless the Functional insulation does not comply with 5.3.4 a) or b).However, this change and its reference to 5.3.4 c) points out a current deficiency in the Standard. Basic/Double/ Reinforced insulation are only associated with risk of electric shock, and 5.3.4 c) only mentions risk of fire and risk of electric shock, but other circuits involving‘insulation’ could result in a hazard if compromised (e.g., within a safety interlock system circuit (e.g., printed circuit board) protectingagainst ‘mechanical’ hazards, ‘radiation’ hazards, etc.).1.5.6Capacitors Bridging InsulationComplete rework of 1.5.6 to clarify its intent and practical application, including addition of a table that summarizes IEC 60384-14 capacitor ratings and an informative table that provides examples of the None. Clarification, and generally reflects present practice. When using X & Y capacitors in ITE, revised 1.5.6 should reduce time needed to determine appropriate X & YCopyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clauseDiscussionImpactapplication of capacitors.The First Amendment to IEC 60950-1 2nd Edition, includes revisions correcting some minor errors in the Tables. capacitors for the application.1.5.7Resistors Bridging InsulationComplete rework of 1.5.7 to clarify its intent and practical application to resistors bridging Functional, Basic, Supplementary, Double, or Reinforced Insulation.Single resistors are required to pass a new resistor test, and a group of resistors is required to comply with either the specifiedClearance and CreepageDistance requirements or the new resistor test.The new resistor testing consists of the damp heat test per IEC 60068-2-78, followed by impulse testing per Annex N, Table N.1, depending on the type of circuit involved.Minor (+), if a group of resistors is used, and the Clearances and Creepage Distances are assessed as if each resistor was short-circuited in turn. Generally consistent with present practice.Considerable (+), when the new resistor test is required/ chosen since it is a new test.1.5.9Surge SuppressorsNew sub-clause on Surge Suppressors.For surge suppression devices used in Primary Circuits, these devices are required to be a Voltage Dependent Resistor (VDR) type, like a MOV/Varistor and to be subjected to new requirements in Annex Q,Voltage Dependent Resistors.Also, defines specificrequirements when VDR is bridging Functional, Basic, Supplementary, Double, or Reinforced Insulation.Considerable (+). For the first time the Standard explicitly addresses the general use of surgesuppressors, which likely will have some impact as different practices bydifferent manufacturers, and NCBs will now be driven to be more closely aligned.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clauseDiscussionImpactAn ‘interrupting means’ (e.g., fuse) is required in series with VDR to protect against overvoltage, thermal overload, or burning/bursting in the event of a short-circuit.There are no newrequirements for suchdevices used in Secondary Circuits.Note- A Gas Discharge Tube (GDT) is not included in the definition of a VDR. However, the FirstAmendment to IEC 60950-1 2nd Edition, clarifies thatVDRs & GDTs may be used in series when bridging Basic insulation only.It is noted that 1.5.9continues to need additional work to clarify the intended application of some of the requirements discussed above.1.5.9.2Protection of VDRsSpecifies an "interrupting means" is required in series with VDR to protect against overvoltage, thermaloverload, or burning/bursting in the event of a short-circuit.It is not clear yet was it the intent of IEC TC108 to allow a single device, or require multiple devices to meet this requirement. Considerable (+). WhenVDRs were used in ITE in the past, typically there was not review/analysis of the types of protective devices used to protect the VDRs in case of overvoltage, thermaloverload or burning/bursting.This new requirement should help promote consistency, although there likely will be some impact as different practices by differentmanufacturers and NCBs are driven to closer alignment.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Clause 1 (General) Sub-clauseDiscussionImpact1.7.2.3Overcurrent Protective DevicesNew sub-clause provides User Instructionrequirements associated with overcurrent protectivedevices. Aligned with second paragraph of 2.7.1.None. Clarification, and generally reflects present practice because of existing requirement in 2.7.1.1.7.3Short Duty CyclesRevised sub-clause reworks requirements for ITE not intended for continuous operation, and adds new term/definition “RatedResting Time” to complement existing term/definition “Rated Operating Time.”None. Clarification, and generally reflects present practice. A very small percentage of ITEinvestigated to IEC 60950-1 is affected by this sub-clause because most ITE is intended for continuous operation.See comments on 1.2.2.1, 1.2.2.2 and 1.2.2.3.1.7.11 DurabilityAdds alternative solvent that may be used for Durability testing, which is a type that is easier to identify andlocate in North America and some other regions. This was an important change since during factory and test lab audits it was becomingincreasingly difficult to prove to auditors the solvent used for durability testing was that specified in the First Edition of IEC 60950-1.Minor (-). Provides practical solution to previous material sourcing difficulties.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Clause 2 (Protection from Hazards) Sub-clause DiscussionImpact2.1.1.1Access to Energized PartsConnectors withconfigurations that comply with IEC 60309, IEC 60320, and IEC 60906-1 & –2 have been added as being exempt from test finger accessibility requirement.Minor (-). Relaxation, and generally reflects present practice.2.1.1.7Discharge of Capacitors in EquipmentNew compliance requirement instructs that when taking voltage decaymeasurements, “the result is referred to an instrument having an input impedance consisting of a resistance of 100 M ohms ± 5 M Ω in parallel with an inputcapacitance of 20 pF ± 5pf.”It appears the wording “the result is referred to…” is intended to allow formeasurements with other specifications than indicated, as long as the results are accurately adjusted accordingly.Note - The First Amendment to IEC 60950-1 2nd Edition, allows the input capacitance to be “25 pF or less.”Minor. Positive development because there has been significant inconsistency making voltage decaymeasurements due to lack of direction in the Standard.This new requirement should help promote consistency, although there likely will be some impact as different practices by differentmanufacturers and NCBs are driven to closer alignment.2.1.1.8Energy Hazards – d.c. Mains SuppliesAs a parallel requirement to existing requirements in 2.1.1.7 for ITE connected to a.c. mains supplies, ITE connected to a d.c. mains supply also is required to have at its point ofdisconnection energy levels that are not considered aHazardous Energy Level, or if hazardous, a HazardousEnergy Level that is removed within 2 seconds of disconnection.Minor (+). This is a newrequirement for ITE intended to be connected to a d.c. mains supply.However, it is expected that most manufacturers are already designing their d.c. mains-connected ITE to consider a similar level of requirements based on general safety principles. Also, most NCBs probably have either directly orCopyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clause DiscussionImpactRequirements forapplications that involve both internal capacitors and internal batteries are specified.indirectly assessed such equipment to a similar level of requirements due toconcerns with ‘backfeed’.2.1.1.9 Audio Amplifiers in ITE New requirement allows accessibility of audioamplifiers in ITE to comply with either the existing2.1.1.1 or, as an alternative, the accessibilityrequirements in 9.1.1 IEC 60065.Minor (-). Generally reflects present practice, and can be considered a relaxation in a sense since the accessibility requirements for audioamplifiers in IEC 60065 are somewhat less onerous than 2.1.1.2.1.2 Protection in Service Access Area Requirements now clarify, the Capacitance Discharge requirements of 2.1.1.7 alsoapply to PermanentlyConnected Equipment, and the time constant to be used is 10 seconds.For DC applications of permanently connectedequipment, 2.1.1.8 applies.Considerable (+). The Capacitance Dischargerequirements per 2.1.1.7 or 2.1.1.8, as applicable, have not been consistently applied to Permanently Connected Equipment in the past. However, since the time constant allowed is 10seconds, it is expected that most constructions will comply.2.2.3 Voltages Under Fault Conditions New requirement that is a clarification on the application of SELV circuitrequirements and voltage limits for power supplies and similar constructions that involve repetitive pulses (e.g., hiccup mode).Helps clarify and now discount a more onerous position sometimes taken in the past that any “repetitive” voltage peak above 42.4 Vp or 60 Vd.c. is a hazardous voltage.Minor (-). Considered a relaxation for mostconstructions that involve this circuit/performance characteristic.Generally reflects present practice due to theawareness of most NCBs with this pending change for several years.2.3.2 Separation of TNV Circuits From Other Circuits and from Accessible Parts Complete rewrite and rework of separation requirements for TNV circuits from other circuits and accessible parts.Minor (-). Most of the changes are clarifications, and generally reflect present practice. Some of theCopyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clause DiscussionImpactThe key takeaway is that itprovides more practical “separation” options that apply to modern designsinvolving telecommunication circuits, including ITE that is not earthed and ITE without isolation between SELV and TNV circuits (e.g., using SLIC chips).Sub-clause 2.3.2.4, Protection by OtherConstructions, is particularly important.revisions can be viewed as a relaxation of the technical and strict application of the published requirements in the earlier versions of 2.3.2, which were not feasible to apply to modern ITE with TNV circuits. Most NCBs have been aware of this pending change for several years and have allowed similar provisions.2.5Limited Power SourcesSub-clause was reworked to make intended application of the requirements clearer. Noteworthy is the change in classification of LPSprotection schemes from “inherently” or “not inherently” limited, to “without an overcurrentprotection device” and “with an overcurrent protection device.”Previous five (5) example constructions (e.g., output inherently limited incompliance with table 2B) have been reduced to four (4), which should help simplify the LPS determination.For sources without anovercurrent protective device (Table 2B), all max VA limits are now 100 VA, i.e., output voltages equal or less than 20 V no longer have a VA limit of 5xUoc.For such sources (Table 2B), the requirements also now clarify that measurements ofMinor (+). Generally reflects present practice. Some of the revisions can be viewed as minor relaxation of the technical and strictapplication of the previous requirements.Regarding the Isc & S measurements, formeasurements of circuits protected by electroniccircuits or PTC devices, since the previous measurement typically was made at 60 s, there could be someconstructions not designed to the new criteria. Thus the impact may be Considerable (+). However, since NEC Article 725 and Table 11, and UL 1310 Class 2 measurements for these circuits already are a 5 s measurement, the impact is not expected to be problematic to most manufacturers.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clause DiscussionImpactIsc & S are made after 5 s ifprotection is by an electronic circuit or PTC, and 60 s in all other cases.Note - The First Amendment to IEC 60950-1 2nd Ed, contains additionalrequirements addressing Integrated Circuits (ICs) used as a power-limiting function in an LPS. New Annex CC includesrequirements for ICs in order for them not to be subjected to single faults of their power limiting function. Theperformance requirements are based on existingrequirements being applied by some NCBs, including UL’s component certifications under QVGS2, Protectors, Low-Voltage Solid-State Overcurrent – Component.2.6.3.3Size of Protective Bonding ConductorsRework of sub-clause to clarify its intendedapplication. New Note 1 clarifies in the U.S./Canada the Protective Current Rating of a circuit associated with Pluggable Equipment Type A is 20A.None. Clarification. Reflects present practice.2.6.3.4Resistance of Earthing Conductors and Their TerminationsFurther revision and rework of this sub-clause to provide additional clarification of the intent of the requirements.Clarifies application ofresistance and voltage drop limits to (a) SELV and TNV circuits that are earthed, and (b) transformer secondary windings that are earthed.Also, incorporates much of what was previously aMinor (+). Technically, the revisions to IEC 60950-1 2nd Edition result in a relatively more onerous set ofrequirements. However, for manufacturers whopreviously had designed for a North American market, since this level ofrequirements has been part of CSA/UL 60950-1 for several years as National Differences, the true impact likely will be relatively minor.Copyright © 2010 Underwriters Laboratories IncAll Rights Reserved. Do Not Reproduce without Permission.Sub-clause DiscussionImpactNational Difference in theU.S./Canada Standard based on the trip characteristics of overcurrent protection devices used in the U.S./Canada, e.g., test duration is 120 seconds at 200% of the Protective Current Rating for circuits protected by devices with a Protective Current Rating up to 30 A.Also, provides specific, new compliance criteria for Protective BondingConductors associated with TNV and cable distribution system circuits and used to comply with separation requirements.2.9.4Separation from Hazardous VoltagesFormer 2.2.3.1 (Separation by Double/Reinforced Insulation - Method 1), 2.2.3.2 (Separation byEarthed Screen - Method 2), and 2.2.3.3 (Protection by Earthing of the SELV Circuit - Method 3) have beenreorganized into new 2.9.4, Separation from Hazardous Voltages.Clarification is provided that other constructions can be used that provide equivalent separation.None. Editorial and Clarification.2.10.1.7Insulation in CircuitsGenerating Starting PulsesNew clarification on the application of insulation requirements to circuits associated with thegeneration of starting pulses used to ignite discharge lamps.If the circuit is a Limited Current Circuit (LCC), Functional Insulation isMinor. Generally reflects present practice, although there could be some impact as different practices bydifferent manufacturers and NCBs are driven to closer alignment. Most NCBs have been aware of the pending changes for several years and have allowed similar provisions.。

IEC609501安规要求介绍

IEC 60950-1:2001介紹
•4.2 操作人員不可碰觸下列電路或零件:
•－ __•__E_L_V__電路的裸露零件， •－具_•__危_險__電_壓__的裸露零件， •－ ELV電路內只有_• _功__能_絕緣或_• _基_本__絕緣的零件或線材，但符合規章條款2.1.1.3規定除外 •－危險電壓電路內只有•_功__能__絕緣或•_基__本__絕緣的零件或線材 •－ __• _未_接__地__的導電零件與在危險電壓電路或ELV電路內的零件，只有•__功_能__絕緣或_• _基__本_絕緣隔離
•－避免高溫零件置放在__•_可__燃__液_體___上方
•－當無法避免高溫零件暴露在__• _使__用__者_可__接___的區域時，須
提供標示以警告使用者
觸
IEC60950-1:2001介紹
•- Radiation hazards
•輻射的形式可能為音頻、無線電頻率、紅外線、高強度可見光、凝聚光、紫外線、離子化輻射等。 •如果設備內會釋出某種型式的輻射，則針對使用者及維修者所能接受程度的輻射值,訂有規定。 • •降低輻射危險的方式有: •－限制幅射源的_•__能__量__值 •－提供_•__安_全__內__鎖__裝置 •－當無法避免使用者可接觸可造成幅射危險的區域時,須提供_•_標__示___以警告使用者
•一般降低能量危險的方式，如•_隔_____，• _屏____或• _安_全__內__鎖____
的防護。
離
蔽
IEC 60950-1:2001介紹
•- Fire • 在過載、零件失誤、絕緣崩潰、高阻抗或是連接器鬆脫的情形下,其所造成的異常溫度有可能形成火災危險。然而,設備內起火後不可散佈到起火點之鄰近區域及對設備外的區域造

IEC_UL_60950-1_电气间隙详解

想了解 IEC/ UL 60950-1:2000 安全标准如何影响电源供电或电池供电的信息类产品的设计吗？需要变更设计，但却没把握 IEC/ UL 60950-1:2000 的规定对于变更的设计有何影响？本文的问答内容旨在协助您符合 IEC/ UL 60950-1:2000 的安全要求。

第一部分沿面距离 (Creepage Distance)IEC/ UL 60950-1:2000 最小沿面距离的规定载录于 2.10.4 条款中。

敬请参考表 2L 以了解各产品应有的沿面距离要求。

若您的产品所测出的工作电压介于表中指定的两个工作电压值之间，您可利用线性内插法 (Linear Interpolation) 计算出所需要的沿面距离。

请参见表 2L 之附注2。

现在就由以下的举例，示范线性插入法的计算运用。

范例 = 电路信息输入电压：100-240V AC测出的工作电压：365 Vms, 890 V peak污染等级：2材料类别：IIIa 或 IIIbQ1a：如何计算基本绝缘需要的沿面距离？300V 需要的沿面距离 = 3.2mm400V 需要的沿面距离 = 4.0mm(4.0－3.2)÷(400－300)×65＝0.523.2＋0.52＝3.72A1a. 基本绝缘需要的的最小沿面距离 = 3.8mm注意事项：须根据表 2L 之附注2，以无条件进入的方式算到最接近的 0.1 mm 单位。

Q1b. 如何计算加强绝缘 (Reinforced Insulation) 需要的沿面距离？公式：(基本绝缘需要的沿面距离) ×2==== > 3.72×2=7.44A1b. 加强绝缘需要的的最小沿面距离 = 7.5 mm注意事项：须根据表 2L 之附注2，以无条件进入的方式算到最接近的 0.1 mm 单位。

须先将基本绝缘所需的最小沿面距离加倍后，再用无条件进入的方式算到最接近的 0.1 mm 单位。

IEC60950-1_2ED_A2_2013

®
INTERNATIONAL STANDARD
NORME INTERNATIONALE
IEC 60950-1
Edition 2.0 2013-05
AMENDMENT 2 AMENDEMENT 2
Information technology equipment – Safety – Part 1: General requirements
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欧盟警告信EN60950

EN60950-1ＥＣ警告信２００５－２００８Year- Week No.Ref.NotifyingcountryProduct(Click on the photo toenlarge)Danger Measuresadoptedbynotifyingcountry2008 - 3470930/08SlovakiaCategory: ElectricalappliancesProduct: Mobile phone chargerBrand: MOBILNETType/number of model: EANcode 8588002657290Description:. Black mobile phonemains charger for SE K750, soldseparately, packed in acardboard box marked:´mobilnet , mobile phoneaccessories, Sietova nabijackana mobilny telefon, CE, K 750,www.mobilnet.sk, Made inChina´, EAN code, user'sinstructions in various languages.Marking on the product :Mobilnet, siet(ová nabíjac(ka,vstup: AC 230 V, 50 Hz, výstupDC 5V- 12V, symbol triedy II, CE,Made in China, ERI K750, K750i,W850, W800, K800i, W950iCountry of origin: ChinaElectric shockThe product poses a riskof electric shockbecause :- construction of converterdoes not comply with therequirements on distancebetween primary andsecondary windings forreinforced insulation,- the product failed to passthe voltage test betweenoutput connector andmains plugs for doubleinsulation. Therefore,interference may occuramong clearances,creepage distances andinsulation resulting inappearance of line voltageon the output connector,which might lead to anelectric shock in case ofincidental contact.The product does notcomply with the LowVoltage Directive and therelevant Europeanstandard EN 60950.Sales banandwithdrawalfrom themarket andrecall fromconsumersordered bytheauthorities.2008 - 3212 0876/08SlovakiaCategory: Electrical appliancesProduct: Travel chargerBrand: Unknown Type/number of model: CLT-760ADescription: Black switching travel charger packed in a box with names of importer and producer.Country of origin: ChinaElectric shockThe product poses a risk of electric shock because there is no sufficient insulation between primary and secondary windings. Clearances, creepage distances and insulation between the mains part and the output connector do not comply with the requirements for double insulation.The product does not comply with the Low Voltage Directive and the relevant European standard EN 60950.Withdrawal from themarket and recall from consumers by the importer ordered by theauthorities2008 - 3214 0878/08SlovakiaCategory: Electrical appliancesProduct: Travel charger MT Siemens C25Brand: BESTType/number of model: EAN code: 5901313130703,Electric shockThe product poses a risk of electric shock because :- construction of converter does not comply with theSales ban, withdrawalfrom the market and recall from consumers ordered by theauthorities.LAD000531/C25/C35/M35Description: The product is a black charger for mobile phone withmarking : input AC 100V- 240V, 200 mA, 47- 63 Hz, output 4,5V- 9,5, max 800 mA, Indoor use only, Made in China, CE, symbol of class II, Best, SIE C25. The product is packed in a cardboard with marking Best, charger service, for mobile phone, highquality, www.gsmbest.pl, 12 months warranty, input AC 100V- 240V, 47- 63 Hz, output 4,5 V- 9,5, CE and others.Country of origin: Chinarequirements for distance between primary and secondary windings for reinforcedinsulation,- clearances and creepage distances do not comply with requirements even for a basic insulation,- length ofconductors enablesbypassing of double insulation in case of connector release and a possibility of presence of mains voltage on exit connector,- part of cover in a form of mains plug carrying a live part does not pass the ball test by 125 C,- no compliance with the requirement on reinforced insulation between output connector and mains plugs,- power supply name-plate does notcontain data about its type and its producer.The product does not comply with the LowVoltage Directive and the relevant European standard EN 60950.2008 - 32150879/08SlovakiaCategory: ElectricalappliancesProduct: Travel charger -Charger for mobile phoneBrand: GT GLOBALTECHNOLOGYType/number of model:GTIC85545 (on product),NOK. 6610 (on packaging)Description:.The productis black, sold separately,packed in a cardboard withmarking GlobalTechnology, charger formobile phone, NOK 6610and user’s manual on theback. Marking on theproduct - Globaltechnology, ProfessionalIC inside, model:GTIC85545, input:220V/240V, output: 6V,600 mAh, Made in P.R.C,CE.Country of origin: ChinaElectric shockThe product poses arisk of electric shockbecause :- construction ofconverter does notcomply with therequirements fordistance betweenprimary andsecondary windingsfor reinforcedinsulation,- clearances andcreepage distancesdo not comply withrequirements evenfor a basic insulation,- length ofconductors enablesbypassing of doubleinsulation in case ofconnector releaseand a possibility ofpresence of mainsvoltage on exitconnector,- no compliance withthe requirement onreinforced insulationbetween outputconnector and mainsplugs,Voluntarywithdrawalfrom themarket andrecall fromconsumersby theimporter.Sales banandwithdrawalfrom themarketordered bytheauthorities.- power supplyname-plate does notcontain data aboutmark of class II,frequency, inputpower and its outputparameters.The product does notcomply with the LowVoltage Directiveand the relevantEuropean standardEN 60950.2008- 31290850/08SlovakiaCategory: ElectricalappliancesProduct: Travel chargerBrand: CPAType/number of model:- on packaging: ATCER28MIINBK ERICT28/T610, na výrobku:TC98A,- on label on the product:CPAE-08/2005Description: The productis black packed inindividual red cardboardbox with marking CPA®,cellular phoneaccessories, ATCER28MIINBK ERIC T28/T610and the name of theproduct in four languages.On the back - informationin various languages.Country of origin: ChinaElectric shockThe product poses arisk of electric shockbecause:- construction ofconverter does notcomply with therequirements forsafe isolation ofprimary windingfrom secondary one;- length ofconductors enablesbypassing of doubleinsulation in case ofconnector releasewhich may result inoccurrence of mainsvoltage on exitconnector;- parameters ofmains plugs do notcomply with thestandard;Voluntarywithdrawalfrom themarket andrecall fromconsumersby thedistributor.- there is nopossibility to set upoutput name-plateparameters;- the product doesnot pass the voltagetest even on basicinsulation betweenoutput connectorand mains plugs.The product does notcomply with the LowVoltage Directiveand the relevantEuropean standardEN 60950.2008- 29150798/08GermanyCategory: ElectricalappliancesProduct: Baby monitoringdeviceBrand: REVType/number of model:DBS 1850, Art.- n°85994,EAN 4006341665690Description: The productis a baby monitor with anemitter, a receiver and apower supply plug.Country of origin: ChinaElectric shockThe product poses arisk of electric shockbecause to reset thebaby monitor, abutton must bepressed. This buttonis locatedunderneath theantenna cavity in ahollow and can onlybe pressed using afine-tippedinstrument. If themonitor is resetwhile connected tothe power supply,the tip used to resetit can reachdangerous activecomponents.Nothing is suppliedwith the test deviceVoluntarystop ofsales bytheimporter.for the purpose ofresetting it: theinstructionsrecommend using afine-tippedinstrument. If thisinstrument is madefrom a conductivematerial (e.g. paperclip), the user of thebaby monitor cancome into contactwith dangerousvoltage levels.The product does notcomply with the LowVoltage Directiveand with the relevantEuropean standardsEN 60950 and EN61558.2008- 27290755/08SlovakiaCategory: ElectricalappliancesProduct: Travel chargerfor NK-6101Brand: CPAType/number of model:On pack:ATCNK6101MCBK, EANcode: 8595097748451, onproduct: CPA E-08/2005Description: Black travelcharger with marking"Travel charger forNK-6101, input: AC100-240V, 0,2A, 50/60Hz, output: DC 5,0V, 400mA MAX, made in China".Packed in a red cardboardbox with transparentElectric shockThe product poses arisk of electric shockbecause:- the convertor doesnot comply with therequirements ondistance betweenprimary andsecondary windingsand reinforcedinsulation;- part of the cover ofthe mains plug doesnot pass the ball testby 12,50 C;- the product doesVoluntarywithdrawalfrom themarket andrecall fromconsumersby theimporter.Sales banordered bytheauthoritiesplastic opening in the front.Country of origin: Chinanot comply with the requirement on reinforced insulation between output connector (circuit SELV) and the mains plug.The product does not comply with the Low Voltage Directive and the relevant European standard EN 60950. .2008 - 2312 0622/08SwedenCategory: Communication and media equipmentProduct: Fibre optic device "Fast Ethernet converter"Brand: N-NET TECHNOLOGYType/number of model: NT-S1200Description: Fibre optic device. Grey box marked with "N-net" in orange and red. "10/100 Base-TX to100 Base-FX Fast Ethernet Electric shockThe product poses a risk of electric shock because :(i) Model Class I :- the creepage and clearance distances are too short on the power supply : Primary foil– Secondary foil =1.7mm (min. req.Withdrawal from themarket and recall from consumers ordered by theauthorities.Converter" in white.Country of origin: China5.0mm), Primary foil – Earth foil = 1.3mm (min. req. 2.5mm).- Class II plug connected to Class I outlet without safety earth wire in the Cable.(ii) Model Class II :- the creepage and clearance distances are too short on the power supply: Primary foil – Secondary foil= 1.2mm (min. req. 5.0mm), Primary – Chassis = 0.2mm (min. req. 5.0mm) (between capacitor CX2 – chassis).- electrical strength test Pri-Chassis / 3000V (Failed at 600V).The product does not comply with the Low Voltage Directive and the relevant European standards EN 60950 and EN 60065.2008 - 1132 0362/08GermanyCategory: Toys Product:Remote-controlled helicopter Brand: AeolusType/number of model:Electric shockThe product poses a risk of electric shock because:Voluntary withdrawalfrom the market6010-1Description: Radio-controlled helicopter with mains adapter. In cardboard box with window.Country of origin: China- the dimensions of the europlug do not meet the requirements of standard,- the insulating sleeves on the pins are only approx. 5.0 mm long; this is inadequate, as they should be at least 10 mm long.The product does not comply with the Low Voltage Directive and the relevant European standard EN 60950.2008 - 101 0295/08NetherlandsCategory: Electrical appliancesProduct: Mobile phone (travel) chargerBrand: A.I.&EType/number of model: Model: TC-01 EAN-code: 8711252108599Description: Charger for mobile phone. Package: Blister.Country of origin: ChinaElectric shockThe product poses a risk of electric shock because :- creepages and clearance distances are too small.- the charger did not withstand the high voltage test.The product does not comply with the Low Voltage Directive and the relevant European standard EN 60950.Sales ban andwithdrawal from the market ordered by theauthorities.2008 - 924 0289/08United KingdomCategory: Electrical appliancesProduct: Mobile phone chargerBrand: FS Accessories Type/number of model: Various travel chargers marked with GX30, or MYC-2, or NOK, or CST13, as if compatible with various mobile phonesDescription: Mobile phone battery chargers (various) in individual cardboard boxes. All marked ‘FS Accessories High Quality Travel Charger’.Country of origin: UnknownElectric shockThe product poses a risk of electric shock due to :- lack of double insulation.- live and neutralparts are only 0.9 mm apart (standard requires min 2 mm).- insufficient wiring and non-secured soldering likely to cause a short circuit.- inadequate construction.One catastrophic failure reported.The product does not comply with the Low Voltage Directive and the relevant European standardEN 60950. Withdrawal from themarket ordered by theauthorities.2007 - 4729 1248/07FranceCategory: Electrical appliancesProduct: AC adaptor - Voltage inverterBrand: XDOMType/number of model: Mobile Power UD 5215Description: Grey striated housing bearing the words "Mobile Power" in green.Electric shockThe product poses a serious risk of electric shock because:- the reinforced insulation betweencircuits carrying dangerous voltages (230 v ac) and theVoluntary withdrawal from themarket by the importer.White electrical socket and red switch on one end. The product is supplied with two crocodile clips. 150W/15Hz.Country of origin: Taiwan12 v dc of the converter is less than required (1mm measured required 5mm),- the socket outlet isnot equipped with acover plate.The product does not comply with the Low Voltage Directive and the relevant European standard EN 60950.2007 - 451 1167/07FinlandCategory: Electrical appliances. Product: Battery chargerBrand: CYBER NOK-3310. Type/number of model: Type: BML 162 089 R1A 402 0038-UK, EAN: 6 430014 820556.Description: Battery charger for a mobile phone, plug-in type product. Black plastic enclosure.Country of origin: China.Electric shock.The product poses a serious risk ofelectric shockbecause there is not sufficient electrical insulation between the primary circuit connected to the mains and the secondary circuit that can be touched. The secondary circuit can be touched via the output cable.Clearances/creepagedistances in transformer TR1 between the primary and the secondary windings are less than 4 mm / 5 mm; measured aWithdrawal from the market and recall from consumers ordered bythe authority. Press release has been issued.minimum of 0.45mm / between theoutput of thesecondary windingand primarywinding; measured aminimum of 0.2 mm.The product does notcomply with the LowVoltage Directiveand Europeanstandard EN 60950.2007- 2530596/07SpainCategory: ElectricalappliancesProduct: Mobile phonebattery chargerBrand: ContactType/number of model:9XX/3020/36/V65/X. REF.HH-TC001ADescription: Mobile phonebattery charger.Blister-packed with thefollowing label: CONTACT.CO SAGEM9XX/3020/36/V65/XCountry of origin: TaiwanElectric shockThis product poses aserious risk ofelectric shockbecause:- it did not pass theelectric strength testof 3000 Vac primaryto secondary;- safety clearancesbetween primaryand secondary areless than those laiddown in thestandard;- there are noinstructions in thelanguage of thecountry in which theproduct is sold.The product does notcomply with the LowVoltage Directiveand with the relevantEuropean standardWithdrawalfrom themarketordered bytheauthoritiesEN-60950-1.2007- 11170271/07FinlandCategory: ElectricalappliancesProduct: Power supplyunitsBrand: PrescottType/number of model:Type: LC-D500EXPCountry of origin:UnknownElectric shockThis product poses arisk of electric shockbecause- there is notsufficient electricalinsulation betweenthe primary circuitconnected to themains and thesecondary circuitthat can be touched.The secondarycircuit can betouched via theproduct connected tothe output of thepower supply unit. Inparticular:-clearances/creepagedistances intransformer T2between the primaryand the secondarywindings are lessthan 4 mm/5 mm; aminimum of 0.2 mmbetween the primarywinding and theoutput wires of thesecondary windingand 0.5mm betweenthe secondarywinding and theoutput wires of theprimary winding aremeasured; on theoutput wires thereare not insulationtubes;Recall fromconsumersordered bytheauthorities-clearances/creepage distances in transformer T3 between the primary and the secondary windings are less than 4 mm/5 mm; a minimum of 0.3 mm between the primary winding and the output wires of the secondary winding and 0.3 mm between the secondary winding and the output wires of the primary winding are measured; on the output wires there are not insulation tubes.This product does not comply with the Low Voltage Directive and the relevant European standard EN 60950.2007 - 150024/07TheNetherlandsCategory: ElectricalappliancesProduct: Car inverterBrand: QmotionType/number of model:Model CI-175Country of origin: TaiwanElectric shockThe product poses aserious risk ofelectric shockbecause it is possibleto come into contactwith livecomponents. It ispossible to insertonly one pin of aeuroplug into theinverter. The productdoes not comply withthe Low VoltageWithdrawalfrom themarket andpenaltyordered bytheauthorityDirective and therelevant Europeanstandard EN 60950.2006- 3610568/06FinlandElectric power supply unitfor building-in “GEMBIRD”Type/number of model:Type: CCC-PSU4 (on thepackage), EAN: 8 716309025973.Remark: Consumers maybuild personal computersthemselves. Instructionshow to build your ownpersonal computer areavailable on the internet.In this case the consumersbuy computer componentsand install e.g. amotherboard, a harddrive, CD/DVD drives anda power supply unit to thecomputer casing.Country of origin: China.Risk of electricshock.There is a risk ofelectric shock due tothe fact that there isnot sufficientelectrical insulationin the mainstransformer betweenthe primary and thesecondary windings.Secondary circuit ofa computer istouched when, e.g.,connectingperipheral devicessuch as a printer, amonitor andmultimedia speakersand also whentouching theseperipheral devices.While the electricalinsulation in themains transformer ofthe power supplyunit between theprimary and thesecondary windingsis insufficient, themains voltage mayexist in thesecondary circuit incase of a single faultcondition. Thiscauses a risk ofelectric shock.Recall fromconsumersordered bytheauthority.This product doesnot comply with theLow VoltageDirective and theEuropean StandardEN 60950.2006- 1770245/06GermanyComputer hard disk drive"Ultron"(mains unit of an externalHDD drive)Type/model: UHD 3500,EAN 4040895184153.Country of origin: China.Risk of electricshock.Product poses a riskof electric shockbecause:-there is aheightened risk offlashover of the240V supply to thelow-voltage sidewhich would exposethe user to a lethalvoltage;-the insulationseparating theprimary andsecondary coils ofthe transformer isinadequate;and -the groundconductorconnection is toosmall and notsecured againstcoming loose.Product does notcomply with the LVDand the relevantEuropean standardEN 60950.Voluntaryrecall ofthe productfrom themarket bytheproducer.。

IEC 60950-1

60950-1 ¤ IEC:2005 – 49 –Circuitry connected to a DC MAINS SUPPLY is considered to be a SECONDARY CIRCUIT (for example, an SELV CIRCUIT , a TNV CIRCUIT or a HAZARDOUS VOLTAGE SECONDARY CIRCUIT ) in the meaning of this standard.NOTE ȀSee ITU-T Recommendation K.27 for bonding configurations and earthing inside a telecommunication building.1.2.8.3MAINS SUPPLYpower distribution system that is either an AC MAINS SUPPLY or a DC MAINS SUPPLY1.2.8.4PRIMARY CIRCUITcircuit that is directly connected to the AC MAINS SUPPLYIt includes, for example, the means for connection to theAC MAINS SUPPLY , the primary windings of transformers, motors and other loading devices. NOTE ȀConductive parts of an INTERCONNECTING CABLE may be part of a PRIMARY CIRCUIT as stated in 1.2.11.6.1.2.8.5SECONDARY CIRCUITcircuit that has no direct connection to a PRIMARY CIRCUIT and derives its power from a transformer, converter or equivalent isolation device, or from a batteryNOTE ȀConductive parts of an INTERCONNECTING CABLE may be part of a SECONDARY CIRCUIT as stated in 1.2.11.6.1.2.8.6HAZARDOUS VOLTAGEvoltage exceeding 42,4 V peak, or 60 V d.c., existing in a circuit that does not meet the requirements for either a LIMITED CURRENT CIRCUIT or a TNV CIRCUIT1.2.8.7ELV CIRCUITSECONDARY CIRCUIT with voltages between any two conductors of the circuit, and between any one such conductor and earth (see 1.4.9), not exceeding 42,4 V peak, or 60 V d.c., under normal operating conditions, which is separated from HAZARDOUS VOLTAGE by BASIC INSULATION , and which neither meets all of the requirements for an SELV CIRCUIT nor meets all of the requirements for a LIMITED CURRENT CIRCUIT1.2.8.8SELV CIRCUITSECONDARY CIRCUIT that is so designed and protected that under normal operating conditions and single fault conditions, its voltages do not exceed a safe valueNOTE 1 The limit values of voltages under normal operating conditions and single fault conditions (see 1.4.14) are specified in 2.2. See also Table 1A.NOTE 2 This definition of an SELV CIRCUIT differs from the term "SELV system" as used in IEC 61140.1.2.8.9LIMITED CURRENT CIRCUITcircuit that is so designed and protected that, under both normal operating conditions and single fault conditions, the current that can be drawn is not hazardousNOTE The limit values of currents under normal operating conditions and single fault conditions (see 1.4.14) are specified in 2.4.IEC 60950-1, CEI 60950-1 : 2005-12Standards WebPort pour client SCHNEIDER le 04/12/2009 à 07:43。

IEC 60950-1 标准介绍

關閉或停歇的時間 (製造商制定)
9 TÜV Rheinland (Shanghai) Co., Ltd.
2019/10/22
重要定義 (裝置的移動性)
• 可移動式設備 (MOVABLE) • ≦18kg 且未加以固定或
• 設備提供便於移動的方法讓操作者執行使用
• 手持式設備 (HAND-HELD) – 正常使用下用於手持(握)的可移動式設備或任何設備的一部件
電力系統屋內配線無需電力裝置
5 TÜV Rheinland (Shanghai) Co., Ltd.
2019/10/22
安全的原理
• 安全設計的優先考慮順序 • 明定設計的準則用來將危險消除,減少或隔離 • 針對危險加以標示或指示
• 保護的對象 • 使用者(操作者) – 無能力識別危險, 但不故意製造危險狀況 • 維護/維修人員 – 針對顯著的危險, 具有預防危害自身及他人安全的能力, 但無法預防非預期的危險
擊風險所應用附加於基本絕緣的獨立絕緣
• 雙重絕緣 (DOUBLE INSULATION) – 基本絕緣 + 補充絕緣 • 加強絕緣 (REINFORCED INSULATION) – 提供與雙重絕緣同等級的單一絕
緣系統以防護電擊
• 工作電壓 (WORKING VOLTAGE) – 零件或絕緣在正常使用狀況下的操作電壓 • 均方根值工作電壓 (RMS WORKING VOLTAGE) (含d.c.成分) • 峰值工作電壓 (PEAK WORKING VOLTAGE) (含d.c.成分及設備內部重複性產
7 TÜV Rheinland (Shanghai) Co., Ltd.
2019/10/22
重要定義 (裝置的電氣額定)

EN60950-1(GB4943)电源测试等内容陈)

设备:测试硬木
二、测试内容
2.17 外壳热硬力测试(4.2.7)
测试条件: 一定温度下(正常温升时外壳的最高温度+10K) 至少70度 ;运行7小时
二、测试内容
2.18 插头扭力 (4.3.6)
判断:< 0.25Nm
二、测试内容
2.19热要求 (4.5)
测试点 1)关键元件 2)接触外壳
开关电源符合EN /IEC 60950-1(GB 4943) 测试项目简介
主讲：陈付雁
主要内容
一、开关电源组成二、测试内容（重点）三、样品需求四、资料的准备
一开关电源组成
直插式
桌面式
一开关电源组成
一开关电源组成
一开关电源组成
二、测试内容
假设
2.1 输入电流(1.6.2条EN 60950-1)
结果: 满足标准防触电要求
二、测试内容
2.12 线拉力(3.2.6)
设备:电子称卡尺
结果: 线(线芯)位移≤2mm
二、测试内容
2.13稳定性测试(4.1)
适合的产品: 1 产品≥7Kg 倾斜10°角(注意:可移动件的严酷性) 2 地面产品≥25Kg (25% 重量但不超过250N的力) 3地面产品, 向下施加 800N的力
判断:小于0.25mA
二、测试内容
2.22 电气强度(5.2) 测试: 输入/输出输入/外壳(塑料壳需要包裹10X20CM的锡箔)
判断:仪器未报警为合格
二、测试内容
2.23 附录 C 变压器输出过载和输出短路
三、样品需求
样品需求: 成品10件(不超声) 成品5件(超声) 变压器(不浸油)3个;浸油2个空板 2片

Power supply 安规认证 IEC60950-1

质量部/DQA
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电源类产品安规认证要求 IEC 60950-1
• 能量有关的危险 (Energy related hazards)
• 危险能量：超过240VA的能量或潜在的不稳定的化学能量（Li-ion battery） • 防护措施： • 1，隔离&屏蔽，防止有危险能量的端子被导体桥接到，产生高温或火的危险 • 2，提供一个安全互锁装置
• •
UL：UL是美国保险商实验室（Underwriter Laboratories Inc定的较大的民间机构。它是一个独立的、非营利的、为公共安全做试验的专业机构。
•
CCC：中国强制认证（China Compulsory Certification）。目前被列入强制实施的产品有19类，132个品
质量部/DQA
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电源类产品安规认证要求 IEC 60950-1
• • • • •
1. 安规认证的目的、意义及重要性产品能安全，可靠，稳定的供消费者使用，是一个成功产品的前提。安全认证是进入市场的必备条件之一。消费者的选择决定了安规认证的必要性。针对产品的自我检讨。
质量部/DQA
3
电源类产品安规认证要求 IEC 60950-1
质量部/DQA
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电源类产品安规认证要求 IEC 60950-1
• 热的危险 (Heat related hazards)
• • • • • • • 烫伤降低元件绝缘特性或损害功能而产生的电气危害或机械损伤温度过高导致的火灾防护措施： 1，开孔或增加Fan或heat-sink散热。 2，选用温度等级高的元件。 3，设置挡板隔离高温区。
质量部/DQA
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电源类产品安规认证要求 IEC 60950-1

IEC60950-1 2005安规标准

Page 1 of 12 Report No. 30880025.007 Myricom, Inc., 325 N. Santa Anita Ave., Arcadia CA 91006Page 2 of 12 Report No. 30880025.00710G-12U-SPINE-ENCL, 10G-7U-CLOS-ENCL, 10G-7U-SPINE-ENCL Ratings....................................................: Input: 100-240V, 50/60 Hz, 10A-5A (rating per input, up to 4 inputs)Page 3 of 12 Report No. 30880025.007General remarks:The test results presented in this report relate only to the object tested.This report shall not be reproduced, except in full, without the written approval of the Issuing testinglaboratory."(See Enclosure #)" refers to additional information appended to the report."(See appended table)" refers to a table appended to the report.Note: This TRF includes EN Group Differences together with National Differences and SpecialNational Conditions, if any. All Differences are located in the Appendix to the main body of this TRF. Throughout this report a comma (point) is used as the decimal separator.General product information:This test report is Amendment 2 to the original CB-report with document number 30880025.001 and the first amendmentCB report 30880025.004 and covers the addition of new line cards 10G-THRU-16Q, 10G-THRU-8M8ER, 10G-THRU-16WQP, 10G-SW32LC-16QP, 10G-S SW32LC-16ES, 10G-SW32LC-16EM. Each line card uses less power than linecards that have already been evaluated for the original report and subsequent amendment so no testing was performed as part of this investigation and the new line cards have been evaluated on a constructional basis only. Critical components within the line cards being added include Certified Class 1 lasers only.The product covered in this test report are LAN Switches with the model numbers: 10G-21U-CLOS-ENCL, 10G-21U-EDGE-ENCL, 10G-12U-CLOS-ENCL, 10G-12U-SPINE-ENCL, 10G-7U-CLOS-ENCL and 10G-7U-SPINE-ENCL. TheLAN Switch product comes with six different configuration codes: 10G-21U-CLOS-ENCL has the CLOS backplane boards, which accept eight 10G-2SW32LC line cards in the middle, one 10G-MONITOR-B in the top, and nearly any combination of the other line cards in the other slots. The 10G-21U-EDGE-ENCL has one 10G-MONITOR-B in the top,and the other slots accepts nearly any combination of the other line cards, excluding the 10G-2SW32LC line card (For details of line cards, see critical components list table 1.5.1). The 12U and 7U configurations are similar in functional configuration with the differences being the 12U is a smaller chassis intended for use with 2-4 power supplies and the7U is a still smaller chassis intended for use with 1-2 power supplies. The 12U configuration was tested per this investigation and it was determined via the test results and inspection that the data taken for the 21U is representativeof the 12U and 7U and as such the previously-measured 21 test results are applied to this report amendment.The enclosures contain a metal chassis, up four approved power supplies (different for each model), approved DC fans, a backplane, AC-Inlet/Filter and interface cards, which are all interchangeable. Model No. 10G-21U-CLOS-ENCL is a ‘21U high, 41-slot enclosure for switch networks up to 512 ports’ located on the rear panel of the unit. These ports areconnected to copper and fiber cables and there is no power available on these ports. All signals are AC coupled through470pF capacitorsDuring the testing the maximum power was generated by using resistive loads. Due to the expenses of each individualcard, a low-cost test configuration with these resistive loads cards generating 200W of power was used for thetemperature rise measurement and abnormal fault conditions.It should be noted that for the final configuration of the LAN Switches each individual card has two redundant temperature sensors which control the power to a card (thermal cut-out / power off at 60˚C). Also, the four DC fans at the back-side ofthe products are speed-adjustable depending on the temperature inside the LAN Switch enclosure. Individual temperature sensors are located on each line card and each fan controller PCBModel 10G-21U-CLOS-ENCL is intended to be fully operational with a minimum of three power supplies only. However,the four power supply configuration is intended for triple-AC systems( where there are three different sources of ACPage 4 of 12 Report No. 30880025.007 power), and the enclosure will continue to run will continue to run with one AC off and one power supply down. The unit contains; four fans, four power supplies and thirty cards – mixed.There are no connections to a Telecommunication Network (TNV).CDRH-Report for Optical Transceiver has to be provided by customer for US Approval.During the testing the maximum power was generated by using resistive loads. Due to the expenses ofeach individual card a low-cost test configuration with these resistive load cards, generating 200W ofpower, was used for the temperature rise measurements and abnormal fault conditions.Conditions of Acceptability:1.This unit is considered to operate under the conditions of:– Pollution Degree 2: Not sealed, not subjected to dust, dirt, and condensation– Equipment mobility: Rack mounted / fixed2. Rated ambient of 40°C at maximum rated loadPage 5 of 12 Report No. 30880025.007Page 6 of 12 Report No. 30880025.007 Summary of testing:Tests performed (name of test and test clause): = no testing performed for this amendment =Testing location:TUV Rheinland of North America, Inc.1279 Quarry Lane, Ste. A, Pleasanton, CA 94566Summary of compliance with National Differences:Comments:Summary of compliance with National Differences (for explanation of codes see below):AT, CA (temporary differences), DE, DK, FI, FR, GB, IT, JP, KR, NL, NO, PL, SE, SI, US (temporary differences).and Group Differences as listed at the end of this test reportExplanation of Codes:AT=Austria, CA-Canada, DE=Germany, DK=Denmark, FI=Finland, FR=France, GB=United Kingdom, IT=Italy,JP=Japan, KR=Korea, NL=The Netherlands, NO=Norway, PL=Poland, SE=Sweden, SI=Slovenia, US=United StatesThe following Attachments are integral part of this test report:= no attachments for this amendment =Page 7 of 12 Report No. 30880025.007Test item particulars..................................................:Equipment mobility....................................................: [] movable [] hand-held [] transportable[X] stationary [] for building-in [] direct plug-in Connection to the mains............................................: [] pluggable equipment [] type A [] type B[] permanent connection[X] detachable power supply cord[] non-detachable power supply cord[] not directly connected to the mainsOperating condition...................................................: [X] continuous[] rated operating / resting time:Access location .........................................................: [X] operator accessible[] restricted access locationOver voltage category (OVC) ...................................: [] OVC I [X] OVC II [] OVC III [] OVC IV[] other:Mains supply tolerance (%) or absolute mains supplyvalues .......................................................................:Tested for IT power systems ....................................: [X] Yes [] NoIT testing, phase-phase voltage (V) .........................: 230VClass of equipment ...................................................: [X] Class I [] Class II [] Class III[] Not classifiedConsidered current rating (A) ...................................:Pollution degree (PD) ...............................................: [] PD 1 [X] PD 2 [] PD 3IP protection class ....................................................: IPX0Altitude during operation (m) ....................................: 2000 mAltitude of test laboratory (m) ...................................: 2000 mMass of equipment (kg) ............................................: 98kgPossible test case verdicts:- test case does not apply to the test object.................:N/A- test object does meet the requirement.......................:P (Pass)- test object does not meet the requirement.................: F (Fail) Testing..........................................................................:Date of receipt of test item............................................:N/ADate(s) of performance of tests....................................:N/A[constructional check only, all test data is based onpreviously issued reports 30880025.001 and30880025.004, all changes per this amendment are eithernon-safety critical or editorial in nature only]Page 8 of 12 Report No. 30880025.007 1 GENERAL P1.5 Components P1.5.1 General Complies PComply with IEC 60950-1 or relevant component standard Refer to appended table 1.5.1(list of critical components)P1.5.2 Evaluation and testing of components All safety critical componentsare certified. All componentsare used within their specifiedratings, plastic materials,PCBs and wiring materialsare UL listed, non-certifiedcomponents were testedaccording to this standard.P 1.5.1 TABLE: List of critical components PObject/part No. Manufacturer/trademark Type/model Technical data Standard (Edition/ year)Mark(s) ofconformity1)1.) Power Supply (up to 4 each) Astec DS850-3 Input:100-240,50/60Hz, 10A;Output: +12V/70A,+3.3V/6AIEC/EN/UL60950-1UL 1449 (VDR’s)CSA, cULus, TUV2.) DC Fan (up to 8 each) Delta FFB1212EHE-F0012VDC3.0A –5.38 m3/minIEC/EN/UL 60950-1 VDE, CE, UL,CSA3.) DC Fan Controller board Myricom 05-2896 Minimumflammability rating:V-0,UL94 ULPage 9 of 12 Report No. 30880025.0074.) Internal wiring Various Various Rated 600V,105˚C,flammability ratingminimum VW-1 4wire gage type10070 from outputpower distributionboard to the powerback plane busbars (2 cables;3feet long) +/-12V.Wire gages forline/neutral/safetyground: type“1015” wire , 18gafor +12/- Backplane tosignal/power/fansto backplane 18ga to 24 ga .-- UL5.) Cards Myricom 10G-Monitor –B Minimumflammabilityrating:V-0UL94 UL6.) Cards Myricom 10G-SW32LC-16M Minimumflammabilityrating:V-0UL94 UL7.) Cards Myricom 10G-THRU-16M Minimumflammabilityrating:V-0UL94 UL8.) Cards Myricom 10G-SW32LC-16Q Minimumflammabilityrating:V-0UL94 UL9.) Cards Myricom 10G-THRU-16Q Minimumflammabilityrating;V-0UL94 UL10.) Cards Myricom 10G-SW32LC-8Q8ER Minimumflammabilityrating:V-0UL94 UL11.) Cards Myricom 10G-THRU-8Q8ER Minimumflammabilityrating:V-0UL94 UL12.) Cards Myricom 10G-SW32LC-8M8ER Minimumflammabilityrating:V-0UL94 UL13.) Cards Myricom 10G-THRU-8M8ER Minimumflammabilityrating:V-0UL94 UL14.) Cards Myricom 10G-SW32LC-8M8EM Minimumflammabilityrating:V-0UL94 UL15.) Cards Myricom 10G-THRU-8M8EM Minimumflammabilityrating:V-0UL94 UL16.) Cards Myricom 10G-SW32LC-16QP Minimumflammabilityrating:V-0UL94 ULPage 10 of 12 Report No. 30880025.007 17.) Cards Myricom 10G-THRU-16QP Minimumflammabilityrating:V-0UL94 UL18.) Cards Myricom 10G-SW32LC-8QP8ER Minimumflammabilityrating:V-0UL94 UL19.) Cards Myricom 10G-SW32LC-16ES Minimumflammabilityrating:V-0UL94 UL20.) Cards Myricom 10G-SW32LC-16EM Minimumflammabilityrating:V-0UL94 UL21.) Cards Myricom 10G-2SW32LC Minimumflammabilityrating:V-0UL94 UL22.) Cards Myricom 10G-FAN v1.0 Minimumflammabilityrating:V-0UL94 UL23.) Backplane left Myricom 10G-21U-CLOSMinimumflammabilityrating:V-0UL94 UL24.) Backplane right Myricom 10G-21U-CLOSMinimumflammabilityrating:V-0UL94 UL25.) Backplane left Myricom 10G-21U-EDGEMinimumflammabilityrating:V-0UL94 UL26.) Backplane right Myricom 10G-21U-EDGEMinimumflammabilityrating:V-0UL94 UL27.) Backplane left Myricom 10G-12U-CLOSMinimumflammabilityrating:V-0UL94 UL28.) Backplane right Myricom 10G-12U-CLOSMinimumflammabilityrating:V-0UL94 UL29.) Backplane left Myricom 10G-12U-EDGEMinimumflammabilityrating:V-0UL94 UL30.) Backplane right Myricom 10G-12U-EDGEMinimumflammabilityrating:V-0UL94 UL31.) Backplane left Myricom 10G-7U-CLOSMinimumflammabilityrating:V-0UL94 UL32.) Backplane right Myricom 10G-7U-CLOSMinimumflammabilityrating:V-0UL94 UL33.) Backplane left Myricom 10G-7U-EDGEMinimumflammabilityrating:V-0UL94 UL34.) Backplane right Myricom 10G-7U-EDGEMinimumflammabilityrating:V-0UL94 UL35.)Power Cord (U.K.) Volex 2922 250V, 10A, 13Afuse, 1mm2-- ASTA,BSIPage 11 of 12 Report No. 30880025.00736.) Power Cord (Germany / Europe) Volex orequivalent17850or equivalentRating: 300V, 10A,1.0mm2-- VDE, N, FI, S, D, I37.) Power Cord (U.S.) Volex 17504 125V, 15A, 14AWG-- UL,CSA38.) Power Cord (Japan) Feller 5330-440 125V,15A,2.0mm2-- DENTORI39.) Transceiver (10G-SW32LC-16Q/10G-THRU-16Q/10G-SW32LC-8Q8ER/10G-THRU-8Q8ER)Zarlink ZL60304-MKDA Class I M laser IEC/EN 60825-1 TUV, UL40.) Transceiver (10G-SW32LC-8Q8ER/10G-THRU-8Q8ER/10G-SW32LC-16Q/10G-THRU-16Q)Avago HFBR-7934EHZ Class I M laser IEC/EN 60825-1 TUV, UL41.) Transceiver (10G-SW32LC-8M8ER/10G-THRU-8M8ER/10G-SW32LC-8Q8ER/10G-THRU-8Q8ER/10G-SW32LC-8QP8ER)Finisar FLTX8511D3 Class I M laser IEC/EN 60825-1 TUV, UL42.) Transceiver (10G-SW32LC-8M8ER/10G-THRU-8M8ER/10G-SW32LC-8Q8ER/10G-THRU-8Q8ER/10G-SW32LC-8QP8ER)Finisar FTLX1411D3 Class I M laser IEC/EN 60825-1 TUV, ULPage 12 of 12 Report No. 30880025.00743.) Transceiver ( 10G-SW32LC-8M8ER/10G-THRU-8M8ER/10G-SW32LC-8Q8ER/10G-THRU-8Q8ER/10G-SW32LC-8QP8ER) Finisar FTLX1412D3BCL Class I laser EN 60825-1EN 60825-2EN 60950-1CSA 60950-1-03CDRHTUV, CSA, FDA44.) Transceiver (10G-SW32LC-8QP8ER/10G-SW32LC-16QP/10G-THRU-16QP)Zarlink ZL60505MJDA Class I M laser IEC/EN 60825-1 TUV, UL45.) Transceiver ( 10G-SW32LC-16ES) Finisar FTLX8571D3BCL Class I laser EN 60825-1EN 60825-2EN 60950-1CDRHTUV, FDA46.) Transceiver ( 10G-SW32LC-16ES) Finisar FTLX1471D3BCL Class I laser EN 60825-1EN 60825-2EN 60950-1CDRHTUV, FDA47.) Transceiver ( 10G-SW32LC-8QP8ER/10G-SW32LC-16QP/10G-THRU-16QP) Tyco Electronics 1985554-x1985861-x1-198554-01-1985861-01-1985861-1Class I M laser EN 60825-1EN 60825-2EN 60950-1CSA 60950-1-03CDRHTUV, CSA, FDA48.) InsulationTape/ used on theinternal chassisadjacent to metalbus bar3M Type 1206 Rated 155˚C UL510 UL49.) Temperature Sensor NationalSemiconductorLM74 3.0V/2.65V to5.5V, -10˚C to65˚C- -50.) Power Distribution Board Myricom 10G-POWERv1.1.Minimumflammabilityrating:V-0UL94 UL END of TEST REPORT。

IEC60950-1 安规要求简介

手持：－－在正常使用时要用手握持的移动式设备、
或任何类型设备的一个部件
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设备级别
固定：Stationary equipment which is fastened or otherwise secured at a specific location.
直插式：预定使用中不使用电源线，电源插头和设备外壳构成一整体、其重量是靠墙上插座来承载的设备。
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IEC 60950-1:2001介紹
- Electric shock
電殛的發生情形是因為有電流通過人體,只要有數毫安培的電流,即可對正常健康人造成影響,並且有可能因不自覺地反應而造成間接性危險。當然,更大的電流會造成更危險的情形。一般而言,在乾燥情形下,小於40Vpeak或60Vdc的電壓,通常視為不具危險的電壓。但是,可被觸碰的零件或是提把皆應接至大地或是將其適當地隔離之。
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IEC 60950-1:2001介紹
- Mechanical hazards 機械的危險是因下列原因而產生: －設備的機構穩定度及結構穩固－避免結構上銳邊尖角－受危險可動零件所傷－受陰極射線管或高壓燈泡爆裂的碎片所傷降低機械的危險的方式有: －設備的銳邊或銳角___圓__弧_化__ －提供___安_全__內__鎖___裝置－提供___防__護_罩___ －適當的____穩_定__度____設計－選用陰極射線管及高壓燈泡具___防__爆___功能－當無法避免使用者會因接觸而造成機械危險的區域時須提供___標_示___以警告使用者
• （短时工作）：正常负载下，在一段规定的时间内进行工作，这种工作是从设备处在冷态条件下开始，在每一段工作时间之间相隔有足够的时间使设备冷却到室温。

IEC60950-1

IEC 60950-1:2001介绍
Materials and components hazards
在设备内所使用的材料及零件，须给予适当的选择及安置，故其不会在正常或异常工作时，导致上述的危险。
Scope:
IEC 60950规章主要是适用于mains-powered or battery –powered 信息产品(含商业电子设备)及其外围产品,请额定电压低于600V.
1. 一般安全原理
在IEC/EN 60950-1的条文内，主要是在防止人体受到
下述危险的伤害, 人体泛指使用者及服务人员此二种类
型的人:
危險的種類電殛(Electric shock) 危險能量(Energy hazards) 火災(Fi re) 機械及熱的危險(Mechanical and heat hazards) 幅射危險(Radiation hazards) 化學的危險(Chemical hazards) 材料及零件(Materials and components)
IEC60950-1
IEC 60950-1:2001介绍
IEC60950-1 安规要求介绍讲师
Amy Lin 林丽芬
IEC 60950-1:2001介绍本讲义主要内容: 1.一般安全原理 2.定义 3.General Requirements 4.危险的防护 5.物理特性的要求
IEC 60950-1:2001介绍
降低火灾危险的方式有: －提供__过__电__流___保护－结构使用的材料具有适当的__燃__烧____等级－选用不会因__过__热___导致燃烧的零件及易燃材料－限制易燃材料的使用__数__量__ －将易燃材料与燃烧源_隔__离___ －使用_壳__罩____或__挡__墙___抑制火焰扩散至设备外－使用具适当的__燃__烧__等级壳罩,以抑制火焰扩散至设备外