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电热水器排污口螺丝拧不开可以用出水口排污吗

现在电热水器购买使用的新标准是无垢、安全、健康。

  • 万用表测量交流、直流电压,区分火线和零线,就是这么简单
  • 判断空开和漏保的好坏,电笔比万用表还好用,可算长见识了
  • 空开和漏保:A、B、C、D系列有什么区别?跟着老电工长长见识
  • 电线接头一受潮就漏电,电工胶布这样缠,就算泡水里也不会漏电
  • 插座一用电就跳闸,原来是零线共用惹的祸,老电工轻松解决了