JJG（冀）169-2020
大地网接地电阻测试仪
Ground Resistance Tester for Grounding Grid
2020-05-31 实施
2020-04-16 发布
目 录
引言..................................1
1范围....................................................1
2 引用文件........................................................1
4.1 最大允许误差.......................................................1
4.3 测量范围.............................................2
4.4 辅助接地电阻的影响................................2
4.4 地电压的影响..........................................................2
5.1 外观结构。............................................................3
5.2 通电检查.................................................3
5.3绝缘电阻...................................................3
5.4介电强度.....................................................3
6 计量器具控制.......................................................3
6.1 检定条件.....................................................3
6.2 检定项目...............................................4
6.3 检定方法...................................................4
7 检定结果处理.....................................................9
8 检定周期.................................................9
附录A检定原始记录格式......................................................10
附录B 检定证书内页格式....................................................12
附录C检定结果通知书检定结果格式.....................................14