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如何检测墙中电线的断点
更新时间: 2021-02-27 16:12:41  

1、首先要找到有断点的电线,然后接通220V的电源,一定要注意安全,如果通不上电这种方法就不能使用。

2、将万用表调至交流2V那档,聪接线端开始沿墙面查找,一只手捏住黑表笔,另一只手将红表笔沿墙内电线走向移动,这时显示屏显示的数值大约是0.4V左右。

3、当红表笔移到某处数值突然变为0V左右,那么该位置附近就是电线的断点。

关键词: 如何 检测 电线 断点

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