220伏的设备电路变成了311伏，检查一看整片工业园都有问题，简直太难了【城阳电工电路】

I don't use much electricity at home and the electricity meter runs very fast. I found out the rea

查到一户高明的偷电户，一直没被发现，他是怎么做到的？

All the electrical enclosures in the home are electrified with 190 volts!

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勤學電工分享11

正反转互锁电路怎样接线？实物接线，详细讲解

Factory equipment buzzing some investigation found out the reason everyone collective laughter di

开关虚接导致设备不工作，零线带电这个好处理，这个设备真不懂

Large machinery leakage in the factory two minutes of the problem I adjusted for 10 minutes direc

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The ground wire of the socket was electrified and the last master cut it off directly. As a result

The circuit does not trip but does not use electricity?

测漏电案例：家里闸不跳，时不时跳外面大总闸，测又不短路不漏电【城阳电工电路】

使用大功率热水器，负荷大跳闸，前铺暗线已废走明线化矛盾如何？

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The customer found that the ceramic tile was hot and when he tested the wall nail he was even cha

All computers in the internet cafe suddenly lost power. what is the reason?

早知道這些 WD-40 妙用就好了，可以省下不少時間

电工不知怎么区分，感应电和漏电，差点造成巨大损失。