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?
2 z! N  r' D/ d# g+ UFirstly, the equipment or circuit is energized or not ?
1 O9 k  x- {; ]9 P. K7 H2 ~, |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?
) Z1 F' ~" r3 R; U; k4 L' WFirstly, the equipment or circuit is energized or not ?
6 c; r5 {, q# r4 q& H- |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

“Firstly, the equipment or circuit is energized or not ?”------打得对：）