Loop_check回路测试方案

仪表回路检查方案

Loop Check Scheme

1.编制说明

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本方案适用于宁波爱思开合成橡胶仪表测试项目，包括回路检查的各项规定及相应要求。同时列出回路检查的方法及标准，在回路检查过程主要负责现场模拟信号及接点信号的输入工作，DCS操作站上操作主要由厂家及现场操作人员负责；同时要求有其他相关专业的协调与配合。

2.编制依据

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GB50093 2002《自动化仪表工程施工及验收规范》

GB50093 2002《Automation Instrument Engineering Construction and Acceptance Specifications》

SH3521-2007 《石油化工仪表施工规程》

SH3521-2007《Petrochemical Instrument Construction Regulations》

SH3503-2007 《石油化工建设工程项目交工技术文件规定》

SH3503-2007《Petrochemical Construction Project Hand Over Technical and Document Rules》

GB50168-2006 《电缆线路施工及验收规范》

GB50168-2006《Cable Run Construction and Acceptance Specification》

SY4031-93 《石油建设工程质量检验评定标准自动化仪表安装工程》

SY4031-93《Petrochemical Engineering Quality Inspection Assessment Standard Automation Instrument Installation project》

GB50131-2007《自动化仪表工程施工质量验收规范》

GB50131-2007《Automation Instrument Project Construction Quality Acceptance Specification》

SH3543-2007 石油化工建设工程项目施工过程技术文件规定(通用电气仪表)

SH3543-2007 Petrochemical Construction Project Construction Process Technical Document Specification (General Electric/Instrument)

69817-01-0850001Lurgi Specification《General Instrument Specification》

69817-01-0850071Lurgi Specification《Loop Check Project Specification》

3．回路检查的一般规定

General provision on Loop Check

3.1回路检查应在系统投入运行前进行，试验前系统应具备下列条件：

Loop check should be carried out before the system put into operation, the following conditions should be available.

3.1.1回路检查文件夹已准备完整，符合规范要求；

Loop check document folder have been prepared and fulfilled specification requirements;

3.1.2 回路中的仪表设备、装置和仪表线路、仪表管道应安装完毕；

The instruments, devices and instrument line, instrument pipeline in the loop should be completely installed; 3.1.3 仪表配线和配管经检查确认正确完整，配件附件齐全；符合试验要求；

Instrument wiring and piping should be checked and confirmed completely, fittings and accessory is complete in accordance with test requirements;

3.1.4 回路中的电源、气源已能正常供给并符合仪表运行的要求；

Power and gas resource in the loop should be supplied normally and in accordance with operating requirement;

3.1.5气源管道经吹扫、气密性试验合格，已通入压力稳定的仪表空气；

Air source pipeline has been purged and air test qualified, instrument air with stable pressure has been put into the system;

3.1.6电气回路已进行校线及绝缘检查，接线正确、端子牢固、接触良好、标识正确；

Electric loop has been tested, insulation checked , wiring correct, terminal fastness, contact in good condition, proper label;

3.2 参加系统试验的施工人员应熟悉图纸及仪表系统工作原理，并具有熟练的调试技术。

Constructors involve with the system test should familiar with the drawing and instrument system operating principle and with skill debugging technical.

3.3 回路检查应根据现场情况和回路的复杂程度，按回路位号和信号类型合理安排，回路试验应做好相应的

试验记录；

Loop check should be reasonably arranged according to site condition and loop complexity level, and loop position number and signal type. Loop check should be recorded accordingly;

3.4 仪表试验用的标准仪器仪表应具备有效的计量检定合格证，其基本误差的绝对值不超过被校准仪表基本

误差绝对值的1/3;

The standard instrument using in instrument test should equipped with measure calibration certification, the absolute intrinsic error data should not over than 1/3 to the instrument to be tested;

3.5 仪表校试验的条件、项目、方法应符合产品技术文件的规定和设计文件要求；

The instrument test condition、item、method should be accordance with product technical specification and design requirements;

4. 回路检查的方法及要求

Loop Test Method and Requirement

4.1 回路检查文件夹的准备：

Loop check folder prepare: