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

5 a( ]2 D; Q) L
The question is unclear?
* A4 v1 |: J4 e4 M) D5 U7 jFirstly, 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…. 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?
0 E$ e/ y' i6 e& J% B% w' G! n" jFirstly, the equipment or circuit is energized or not ?
1 A( n) Y- w/ @: oIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
* ?7 `# B: Y9 \% [jack_lai 发表于 2010-2-15 22:24

4 J0 k% L( j: s  P, h2 U“Firstly, the equipment or circuit is energized or not ?”------打得对：）