DL506-1992六氟化硫气体绝缘设备中水分含量现场测量方法.pdf

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1、六氟化硫气体绝缘设备中水分含量现场测量方法DL506-1992目次1适用范围·················································，···············.······················⋯⋯11512引用标准··················································································.······⋯⋯11513名词术语··································

2、···················，····································⋯⋯11514对测量仪器的要求············································································⋯⋯11525测量方法·················································.·········，····························⋯⋯11526测量管路与测量接头·········

3、······························，·······························⋯⋯11547测量注意事项·······························，··，·····，，，，，··，························一11558测量结果报告··············，·····································································⋯⋯1155附录A微量水分测量仪校验数据的处理·····

4、············································⋯⋯1155附录B气体中水分含量测量计算公式····················································⋯⋯1156附录C冰面上的饱和蒸汽压···········································......···⋯⋯，.......⋯⋯11571150中华人民共和国电力行业标准六氟化硫气体绝缘设备中DL506-1992水分含a现场测A方法适用范围本标准适用于六氟化硫气体绝缘设

5、备在交接试验及运行中的预防性试验时绝缘气体中水分含量的测量。2引用标准GB8905-1988六氟化硫电气设备中气体管理和检测导则GB5832.1-5832.2-1986气体中微量水分的测定JJG1012-1987常用计量名词术语及其定义3名词术语3.1水蒸气(watervapour)亦称水气。水的气体，由水汽化或冰升华而成。3.2湿度(humidity)气体中水蒸气的含量。3.3湿气(wetges)干气和水蒸气组成的混合物。3.4露点温度(dew-pointtemperature)在一定的压力下，湿气被水面饱和时的温度。3.5霜点温度(

6、frost-pointtempetature)在一定压力下，湿气被冰面所饱和时的温度。3.6水蒸气压力(watervapourpressure)湿气(体积为v,温度为T)中的水蒸气于相同体积v,温度T条件下单独存在时的压力，称为水蒸气分压力。3.7饱和水燕气压(saturationwatervapourpressure)水蒸气与水(或冰)面共处于相平衡时的水蒸气压。3.8质量混合比(mixingratio)湿气中水蒸气的质量与千气的质量之比。3.9重量比(weightratio)质量混合比乘以101.中华人民共和国能源部1992-12-

7、31批准1993-07-01实施11513.10体积比(volumeratio)湿气中水蒸气分体积与干气的分体积之比值的10“倍。3.11测量的重复性(repeatabilityofmeasurement)在实际相同的测量条件下(如同一方法、同一观测者、同一计量器具，在同一实验室内，于很短的时间间隔内)，对同一被测量进行连续多次测量时，其测量结果的一致程度。4对测t仪器的要求4.1用于气体中微量水分测量的仪器需要定期校验，校验结果证书的有效期为一年。校验数据的处理方法见附录Ao4.2微量水分测量仪器应设有专人保管，由专人操作。4.3电解

8、式微量水分分析仪测量范围应满足0一1000x10一“(体积比)。4.4电解式微量水分分析仪在30x10-'-1000x10“范围的引用误差不得超过士5.0%.4.5冷凝式露点水分测量仪和阻容式露点水分分析仪