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电线回收要明白颜色代表什么线

来源:废旧电缆回收 2020-7-22 15:38:36      点击:

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有时四线颜色区分不太明显时,三根截面一样的为火线,截面稍小的为零线。你说的变压器也许是控制回路的电源,如是380V,接到任意两根火线上;如是220V,则接一根火线,一根零线。

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