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auqght
LJ為幸福奮斗
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樓主  發(fā)表于: 2018-01-12 09:01
圖片:
這個(gè)接地合理安全嗎
1992sd
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1樓  發(fā)表于: 2018-01-17 08:09
隔離變壓器次級不能接地,隔離的目的就是斷開(kāi)與地之間的電位聯(lián)系。
1992sd
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2樓  發(fā)表于: 2018-02-05 08:23
在接地的情況下,如果100線(xiàn)斷了會(huì )有什么后果?PE是保護接地,按道理來(lái)說(shuō),是與大地接通的,假設變壓器的絕緣除了問(wèn)題,殼體或鐵芯帶電,會(huì )有什么結果?初次機變比大體在1:1的,才叫隔離變壓器,隔離變壓器次級不能接地。保護接地,說(shuō)白了,還是保護人身安全的,PE接在導線(xiàn)上?誰(shuí)會(huì )有事沒(méi)事往導線(xiàn)上摸??

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