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scw威偉
互幫互助，共建美好社會(huì )。給他人方便就等于方便了自己。
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樓主  發(fā)表于: 2011-07-05 22:49
我用接觸器接220V電熱管Y型接法，ABC每一相上接4根管子，如果A相上壞了2根管子，或A相4根全壞了，會(huì )出現什么情況呢，會(huì )不會(huì )因為三相不平衡而產(chǎn)生電氣火災��？？？
困難像彈簧，你強它就弱，你弱它就強！
胡驕陽(yáng)
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1樓  發(fā)表于: 2011-07-06 15:17
不用接零線(xiàn)，但為了安全起見(jiàn)，最好要裝漏電保護開(kāi)關(guān)，地線(xiàn)一定要接好。不會(huì )有什么問(wèn)題的，如果燒了一組，加熱的功率減少而已。另外兩相還是會(huì )繼續加熱，要是每相安裝電流表監測，壞了一組馬上就知道了。

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