搜索
1国家电网公司企业标准QQQQ////GDWGDWGDWGDW1896—2013SFSFSFSF6666气体分解产物检测技术现场应用导则FieldFieldFieldFieldApplicationApplicationApplicationApplicationGuideGuideGuideGuideforforforforDetectionDetectionDetectionDetectionTechnologyTechnologyTechnologyTechnologyofofofofSFSFSFSF6666DecompositionDecompositionDecompositionDecompositionProductsProductsProductsProducts2014-01-10发布2014-01-10实施国家电网公司发布Q/GDWICSICSICSICS29.240.240备案号：CECCECCECCEC668-2012QQQQ////GDWGDWGDWGDW1896—2013I目次前言········································································································································································Ⅱ1范围····································································································································································12规范性引用文件················································································································································13术语和定义························································································································································14检测项目····························································································································································25检测方法····························································································································································25.1电化学传感器检测法········································································································································25.2气体检测管检测法···········································································································································35.3气相色谱检测法···············································································································································46检测周期····························································································································································67评价标准····························································································································································68安全防护····························································································································································7附录A（规范性附录）现场检测报告··············································································································8编制说明··································································································································································9QQQQ////GDWGDWGDWGDW1896—2013II前言为加强对SF6气体绝缘设备的监督与管理，确保设备安全运行，根据国家电网公司提出的设备检测有关规定、要求及状态检修工作的需求，本标准对气体绝缘设备中SF6气体分解产物的现场检测提供指导。本标准由国家电网公司运维检修部提出并解释；本标准由国家电网公司科技部归口；本标准起草单位：中国电力科学研究院、陕西电力科学研究院，安徽省电力科学研究院，重庆市电力公司电力科学研究院，黑龙江省电力科学研究院，江苏省电力公司电力科学研究院；本标准主要起草人：宋杲、王承玉、刘明、焦飞、杨韧、颜湘莲、苏镇西、季严松、鲁钢、刘汉梅、姚强、余翔。本标准首次发布。QQQQ////GDWGDWGDWGDW1896—20131SFSFSFSF6666气体分解产物检测技术现场应用导则1范围本标准对设备中SF6气体分解产物现场检测项目、检测方法、检测周期、评价标准及安全防护提出了要求和规定。本标准适用于国家电网公司所属SF6气体绝缘设备的监督和管理，对气体绝缘设备中SF6气体分解产物的现场检测提供指导。本标准为SF6气体分解产物现场检测导则，可与现行SF6气体检测和管理的规定及标准同时实施。2规范性引用文件下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。GB/T7230气体检测管装置GB/T8905六氟化硫电气设备中气体管理和检测导则3术语和定义下列术语和定义适用于本文件。3.1SFSFSFSF6666气体绝缘设备SFSFSFSF6666gasgasgasgasinsulatedinsulatedinsulatedinsulatedequipmentequipmentequipmentequipment任何使用SF6气体作为绝缘介质的电气设备，以下简称设备。3.2SFSFSFSF6666气体分解产物SFSFSFSF6666decompositiondecompositiondecompositiondecompositionproductsproductsproductsproducts设备中SF6气体发生反应生成的气体杂质。3.3电化学传感器electrochemicalelectrochemicalelectrochemicalelectrochemicalsensorsensorsensorsensor基于被测气体的电化学性质，将被测气体含量转换为检测电信号的一种传感器。3.4SFSFSFSF6666气体分解产物检测仪（（（（电化学传感器原理））））detectiondetectiondetectiondetectioninstrumentinstrumentinstrumentinstrumentofofofofSFSFSFSF6666decompositiondecompositiondecompositiondecompositionproductsproductsproductsproducts利用电化学传感器检测设备中SF6气体分解产物的仪器，以下简称检测仪。3.5响应时间responseresponseresponseresponsetimetimetimetime在通常条件下，检测仪从进气达到稳定示值的时间，规定达到最大量程90%的时间作为响应时间。3.6最小检测量minimumminimumminimumminimumdetectabledetectabledetectabledetectablequantityquantityquantityquantity在通常条件下，检测仪能够准确检测出的气体最小含量。3.7气体检测管gaseousgaseousgaseousgaseousdetectiondetectiondetectiondetectiontubetubetubetubeQQQQ////GDWGDWGDWGDW1896—20132填充涂有化学试剂的载体（以上两者合称指示剂）的透明管，利用指示剂在化学反应中产生的颜色变化测定气体的成分和含量。3.8气体采集装置gasgasgasgassamplingsamplingsamplingsamplingdevicedevicedevicedevice具有气体流量控制功能，连接检测管直接检测设备中气体含量的装置。3.9采样器samplingsamplingsamplingsamplingdevicedevicedevicedevice与气体检测管配套使用的手动或自动采集气体样品的装置。3.10便携式气相色谱仪portableportableportableportablegasgasgasgaschromatographchromatographchromatographchromatograph便于携带至现场检测设备中SF6气体分解产物的气相色谱仪，以下简称色谱仪。4检测项目4.1SF6气体的检测项目有：二氧化硫气体（SO2）、硫化氢气体（H2S）、一氧化碳气体（CO）和四氟化碳气体（CF4）的含量检测。4.2设备中SF6气体的不同组分适用的现场检测方法列于表1。表1SFSFSFSF6666气体组分及其现场检测方法5检测方法5.1电化学传感器检测法本方法规定了设备中SF6气体分解产物SO2、H2S和CO的电化学传感器检测方法，适用于设备进行交接试验、例行试验、诊断性试验和设备故障时对SF6气体中SO2、H2S和CO的含量检测。5.1.1检测原理根据被测气体中的不同组分改变电化