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用电表测地线方法

更新时间: 2021-02-15 06:32:52     

1、将电表打动欧姆档最大档位上,然后将红笔和黑笔分别接在所测线路两端。

2、如果线路为通,你们电阻值一定很小,如果线路断路那么测出来的电阻非常大,电阻值为几百千欧甚至兆欧。

3、也可以将档位打到标有二极管的位置,如果电路接通则电表会发出蜂鸣声,否则为断开。

关键词: 电表 地线 方法

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