JJG （冀）169-2020
大地网接地电阻测试仪
Ground Resistance Tester for Grounding Grid
2020-04-16 发布
2020-05-31 实施
目录
引言.................................1
1范围..................................1
2引用文件................................1
3概述..................................1
4计量性能要求..............................1
4.1最大允许误差............................1
4.2准确度等级.............................2
4.3测fit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通用技术要求..............................3
5.1外观结构..............................3
5.2通电检査..............................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