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

% D: Z* J* H- s# _7 a# h( w
The question is unclear?
Firstly, the equipment or circuit is energized or not ?
) V& X# v. t0 [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?
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…. ...
jack_lai 发表于 2010-2-15 22:24

$ m8 @0 \8 \3 s$ p! n$ a“Firstly, the equipment or circuit is energized or not ?”------打得对：）