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如何换电闸
更新时间: 2020-09-16 00:00:00  

1、断开开关,先拆除开关电源端的火线,在拆除零线。最后拆除开关下端的线;

2、把新的开关安装到配电箱中;

3、接线先接开关下端的线,后接电源端零线,最后接电源端火线。

关键词: 如何 电闸

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