看你的电工基础知识牢固吗？(4)

homestay

What is the first thing you need to do and need to know before working on an electrical cuicuit/equipment?

jack_lai

- v3 q& @+ U0 S
The question is unclear?
Firstly, the equipment or circuit is energized or not ?
4 e. l$ d( t! d1 m# K1 F4 p- ]If yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. You have turned the power off for this equipment or circut. After that , you can do what you want to do.

Allan2008

是否带电是很重要的。

homestay

The question is unclear?
; U5 M  |4 U& |% A/ q& C. NFirstly, the equipment or circuit is energized or not ?
If yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
* e3 ?% D# x3 i1 `jack_lai 发表于 2010-2-15 22:24

“Firstly, the equipment or circuit is energized or not ?”------打得对：）