old dryer only has 3-wire cable, newer one uses 4-wire cable

来源: 比花花还花 于 2012-12-07 12:50:33 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (62 bytes)
回答: Dryer needs neutral to seperate 110/220V. 由 易木 于 2012-12-07 09:33:58

Old dryer use dryer itself for green-ground wire. 

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• The 4th wire is the metal cover:) -易木- ♂ 给 易木 发送悄悄话 易木 的博客首页 (61 bytes) () 12/07/2012 postreply 12:55:12

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