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200kw380v用多大电缆_家居日记
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200kw380v用多大电缆

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200kw380v用多大电缆 可以使用120平的铜芯电缆，或者是使用185平的铝芯电缆。若要计算所需使用的电缆规格的话，则应该根据公式I=P÷(√3UcosΦ)


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