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

- I% q: r( P4 [5 n. jThe question is unclear?
4 V! ]/ V9 W# {9 A% sFirstly, 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?
Firstly, the equipment or circuit is energized or not ?
4 G1 T8 y: ?( j: x& iIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
5 ]3 ^0 A* ^2 Y9 a: Cjack_lai 发表于 2010-2-15 22:24

0 R2 |3 I9 r) N“Firstly, the equipment or circuit is energized or not ?”------打得对：）