内容简介
JJG（冀）3007-2019钳形泄漏电流表
Clamp Ammeters for Measurement of Leakage Currents
2019-04-29实施
2019-03-29发布
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 钳形泄漏电流表泄漏电流的最大允许误差...................................................... 1
4.2 外磁场影响.......................................................................................................... 2
4.3 电流位置影响...................................................................................................... 2
4.4 电流角度影响...................................................................................................... 2
4.5 负载电流影响...................................................................................................... 2
5 通用技术要求 ........................................................................................................... 3
5.1 外观...................................................................................................................... 3
5.2 通电检查.............................................................................................................. 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.............................................................................................................. 5
6.4 检定结果的处理.................................................................................................. 8
6.5 检定周期.............................................................................................................. 9
附录 A 钳形泄漏电流表检定原始记录格式............................................................ 10
附录 B 钳形泄漏电流表检定证书/检定结果通知书内页格式（第 2 页）.......... 13
附录 C 钳形泄漏电流表检定证书/检定结果通知书检定结果页式样(第 3 页) .. 14
C.1 检定证书第 3 页................................................................................................. 14
C.2 检定结果通知书第 3 页..................................................................................... 16