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泰山之石
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樓主  發(fā)表于: 2017-12-28 08:30
當交流電零線(xiàn)與直流電零線(xiàn)（負極）連接接地會(huì )出現什么結果？
bg4igy
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1樓  發(fā)表于: 2017-12-28 09:04
見(jiàn)過(guò)一臺進(jìn)口的舊設備是這樣的，不知道問(wèn)什么這樣設計。

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