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薛名海強
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樓主  發(fā)表于: 2009-07-28 21:36
各位大哥，我宿舍的三相四線(xiàn)，相線(xiàn)１５０mm2,為什么零線(xiàn)卻用２４０mm2��？
急！急！急！
[ 此帖被sjm213在2009-07-30 21:30重新編輯 ]
楊漾
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1樓  發(fā)表于: 2009-07-31 14:17
這個(gè)我還真的沒(méi)有碰到。我也不知道是出于什么考慮，我認為就是在怎么不平衡，也不用把零線(xiàn)做到240mm。

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