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

/ ]+ Q  v3 z; a. k3 a$ qThe question is unclear?
5 w6 ^3 W, _* b: `3 ^+ J' gFirstly, the equipment or circuit is energized or not ?
$ N9 q/ W- b! E. NIf 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 ?
+ Y$ ]- u7 Z1 w7 j0 p. W+ aIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
. ~8 j* _4 g% @5 cjack_lai 发表于 2010-2-15 22:24

  ~5 s: U' H  a“Firstly, the equipment or circuit is energized or not ?”------打得对：）