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如何测量接地电阻
更新时间: 2020-10-13 00:00:00  

测量接地电阻如下

1、在E-E两个接线柱测量接地电阻时,用镀铬铜板短接,并接在随仪表配来的5m长纯铜导线上,导线的另一端接在待测的接地体测试点上;

2、测量屏蔽体电阻时,应松开镀铬铜板,一个E接线柱接接地体,另一个E接线柱接屏蔽;

3、P柱接随仪表配来的20m纯铜导线,导线另一端接插针;

4、C柱接随仪表配来的40m纯铜导线,导线的另一端接插针2;

5、电压钳在被测回路中激励出一个感应电势E,并在被测回路产生电流I,

6、仪表通过电流钳可以测得I值;

7、通过对E、I的测量,由欧姆定律R=E/I,即可求得R的值。

关键词: 如何 测量 接地 电阻

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