是感应电。1.火线没关断（%99）2 零线跟地线有压差

来源: 味苦于 2017-12-26 08:13:49 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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是感应电。1.火线没关断 （%99）2 零线跟地线有压差