婷婷激情久久,婷婷丁香四月,午夜高清国产拍精品福利,观看亚洲色欲色欲色欲www,日韩字幕一中文在线综合,日韩在线观看视频网站,手机看片精品高清国产日韩

Hello, welcome to visit here is all your wenzhou website to create electrical technology co., LTD.
0577-62783977
13757772677
溫州凡創(chuàng)電氣科技有限公司【官網(wǎng)】
Position:主頁 > English > News > Industry news >
Contact us

Wenzhou every gen electrical technology co., LTD

Add:Zhejiang yueqing willow town road no. 33
Tel:13757772677

Hotline0577-62783977

Home inspection method of trip distribution box

Release time:2022-11-08 22:51Sentiment:

  Using household distribution box, a trip, so we can look at home have "socket" loop "soft breakdown" phenomenon. After such judgment method is in power, with 500 v shake table check "zero line" and "fire" between the insulation, the insulation resistance shall not be less than 0.5 ohms. There is, will you home "socket" loop "zero line" and "fire" get off, then access the same arbitrary distribution in another capacity switch, if after closing the switch trip, no longer "outlet" is your home circuit have the slight leakage phenomenon. If the switch is trip after closing, that is "outlet" loop in the home has "soft breakdown" phenomenon. Then, would be "socket" loop check home if there is a problem of leakage protection switch.

Recommend information

0577-62783977