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澧縣電氣自動(dòng)化
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樓主  發(fā)表于: 2008-11-26 20:53
我廠(chǎng)有一臺小沖床，由于馬達裝了減震膠卷，它與沖床機身絕緣，沖床機身接了地，馬達絕緣正常。我看到馬達與機身有個(gè)地方只有約四個(gè)MM的間隙處跳火。（就像燃燒機的火花塞一樣。）用手摸馬達會(huì )被觸電。沒(méi)有幾千伏的電壓是不會(huì )把空氣擊穿的。這個(gè)電壓是怎樣產(chǎn)生的？
wsandlqj
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1樓  發(fā)表于: 2008-11-27 21:14
我贊同8樓的說(shuō)法，我就常遇到這樣的問(wèn)題，加個(gè)電機的地線(xiàn)就可以了

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