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1553122298
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樓主  發(fā)表于: 2014-09-09 18:21
           請教給位；開(kāi)關(guān)電源，供電220伏交流，出來(lái)變成24伏直流，供電端子分火線(xiàn)L，零線(xiàn)N，如果供電源火線(xiàn)接到N，零線(xiàn)接到L,就是供電源火線(xiàn)和零線(xiàn)接倒了，會(huì )出現什么情況，
我就去旅游
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1樓  發(fā)表于: 2014-09-18 22:34
一樣的用.但有隱患:開(kāi)關(guān)電源內L端有一有一保險管.過(guò)流燒保險時(shí),正確接法時(shí)斷火線(xiàn).反接斷零線(xiàn),

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