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ldbboy
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樓主  發(fā)表于: 2012-07-08 09:58
在工作中！碰到少數的設備！+24V直接接地！當時(shí)不敢認同！后來(lái)發(fā)現這樣做確實(shí)有道理！
你認為+24V要接地嗎？你的理由！



問(wèn)題解答：15樓
[ 此帖被ldbboy在2012-07-09 00:12重新編輯 ]
liulungao
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1樓  發(fā)表于: 2012-07-08 19:24
有什么作用？

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