30:15

电压忽高忽低烧了不少东西，故障原因很低级，我这跑了二百多公里，这费用收多少合适呢？【城阳电工电路】

11:34

The customer said that the touch screen did not display, and the PLC controller was repaired as a r

9:25

查到一户高明的偷电户，一直没被发现，他是怎么做到的？

9:10

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

13:36

Broken 2yrs tripped for repair shocking on-site test severe leakage! [Chen Yang Elec.]

10:47

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？

32:16

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

1:08:29

How cruel! The kettle has more than 180 volts of electricity which is really rare! Chengyang Elect