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

) k: E) e2 I& C% z+ n, m
4 H" S7 s8 `- A5 e) XThe question is unclear?
Firstly, the equipment or circuit is energized or not ?
) r1 Q' w7 w$ p# p9 HIf 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…. ...
3 t- Q5 ^- g" ijack_lai 发表于 2010-2-15 22:24

3 p9 F, W! p+ H& D# d4 t; l“Firstly, the equipment or circuit is energized or not ?”------打得对：）