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lhwo9958
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12樓  發(fā)表于: 2013-12-13 11:40
引用
引用第8樓etdssdabb于2013-12-10 12:52發(fā)表的  :
三相四線(xiàn)和三相五線(xiàn)都統稱(chēng)TN系統,但它們又分TN-C也叫三相四線(xiàn)也叫保護接零。TN-S也叫三相五線(xiàn)和TN-C-S,三相四線(xiàn)中性線(xiàn)直接接地整個(gè)系統中有一部分中性線(xiàn)與保護零線(xiàn)是合一的,而末端是分開(kāi)的。你能否安TN-C-S去做。

要看你各地區的接線(xiàn)方法的。上海跟無(wú)錫的就不一樣。
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13樓  發(fā)表于: 2013-12-13 12:09
這問(wèn)題簡(jiǎn)單啊,要不接地線(xiàn)別接了,要不直接機器旁邊打個(gè)接地。零線(xiàn)和接地連接容易引起零線(xiàn)帶電,不接地最多你那1臺機器外殼帶電,接地接零了就說(shuō)不定了!
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