江苏春晨电缆有限公司生产电机引接线电机引出线电机绕组线，使用厂商的电流钳接到相应的插口上，将两钳卡在接地导体上，两钳间的间隔要大于0.25米。
The current clamp is designated by the manufacturer to receive the corresponding sockets. The two clamps are clamped on the grounding conductor, and the interval between the two tongs is greater than 0.25 meters.
二、接地电阻测试仪使用方法电机引接线电机引出线电机绕组线​
Two. Method of using ground resistance tester
1、使用接地电阻测试仪准备工作电机引接线电机引出线电机绕组线

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1. Use the grounding resistance tester to prepare for work
①熟读接地电阻测量仪的使用说明书，应全面了解仪器的结构、性能及使用方法。
Familiar with the grounding resistance measuring instrument for use, structure, performance and operation methods should be a comprehensive understanding of the instrument.
②备齐测量时所必须的工具及全部仪器附件，并将仪器和接地探针擦拭干净，特别是接地探针，一定要将其表面影响导电能力的污垢及锈渍清理干净。电机引接线电机引出线电机绕组线​


(2) the tools and all the instrument accessories necessary to be measured, and clean the instrument and ground probe, especially the grounding probe, must be cleaned up on the dirt and rust stains on the surface that affect the electrical conductivity.
③将接地干线与接地体的连接点或接地干线上所有接地支线的连接点断开，使接地体脱离任何连接关系成为独立体。
(3) break the connection point between the grounding line and the connection point of the grounding body or all grounding lines on the grounding trunk, so that the grounding body is separated from any connection.
2、使用接地电阻测试仪测量步骤


2. Measure steps of using grounding resistance tester
（1）、将两个接地探针沿接地体辐射方向分别插入距接地体20m、40m的地下，插入深度为400mm，如下图所示。
(1) two grounding probes are inserted into the ground of 20m and 40m from the grounding body respectively. The insertion depth is 400mm, as shown below.