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

The question is unclear?
5 h% x; L% r! F& q& x5 LFirstly, the equipment or circuit is energized or not ?
+ d% |* e! C0 g; \. y5 SIf 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?
Firstly, 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…. ...
- C6 `! a2 d; Cjack_lai 发表于 2010-2-15 22:24

# {  c; x$ a% s. _8 N* w“Firstly, the equipment or circuit is energized or not ?”------打得对：）