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二根线怎么接三插头_家居日记
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二根线怎么接三插头

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二根线怎么接三插头 先把电线内的零线以及火线区分开来，并用字母进行标记。我们可以给火线标注L，而零线标注N。接着把三相插头拆开，然后按照左零右火上接地的原则，把


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