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三相电空开怎么接_家居日记
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三相电空开怎么接

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三相电空开怎么接 先拿测电笔就电源做检测，搞清楚电线的性质并找到火线，再把开关的L1、L2、L3连接起来，接着连接到电源火线上，之后把它的三根线各自连到L11、


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