天气预报 > 财经 > 插头三根线什么颜色是保险线
插头三根线什么颜色是保险线
更新时间: 2021-04-29 19:25:48  

1、火线为红色,零线为蓝,地线为黄绿,三脚插头的三根电线就是:L——相线(火线) ;N——零线; GND——保护接地线 (它与电器的金属外壳连通的。

2、万一外壳碰到相线而带电,这泄漏电就流到保护接地线里,从而引发断路器(空气开关)跳闸或熔断器断路或漏电保护器动作等保护动作,从而保护我们不被触电)。而真正的三相插头,里面的三根电线就是A B C三相电源线了。

关键词: 插头 什么 颜色 保险

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