国家电网公司变电检测管理规定（试行）第39分册SF6密度表（继电器）校验细则国家电网公司二〇一七年三月目录前言...................................................................................................................................................II1校验条件...............................................................................................................................................11.1环境要求................................................................................................................................................11.2待校表计本体设备要求.......................................................................................................................11.3人员要求................................................................................................................................................11.4安全要求................................................................................................................................................11.5校验仪器要求.......................................................................................................................................12校验准备...............................................................................................................................................23校验方法...............................................................................................................................................23.1校验管路连接及接线...........................................................................................................................23.2校验项目................................................................................................................................................33.3校验步骤................................................................................................................................................33.4校验操作................................................................................................................................................33.5注意事项................................................................................................................................................43.6校验验收................................................................................................................................................44校验数据分析和处理............................................................................................................................44.1SF6密度表（继电器）的准确度等级和允许误差（表体温度20±2℃条件下）........................54.2回程误差................................................................................................................................................54.3轻敲位移................................................................................................................................................54.4接点设定值误差及切换差（表体温度20±2℃条件下）.................................................................54.5表体温度偏离（20±2）℃范围时最大允许误差计算......................................................................55校验报告...........................................................................................................................................
