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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 ]
proface448
有時(shí)間就多學(xué)學(xué)
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1樓  發(fā)表于: 2009-08-05 23:00
這個(gè)是不正確的做法.可能是舊物再利用吧!

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