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' X3 F% _0 T
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…. 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?
" L" [# `4 k0 X4 `0 kFirstly, the equipment or circuit is energized or not ?
, U$ ~: W' v9 M" f3 vIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
9 Z0 @1 B; i' ]' B5 g  Sjack_lai 发表于 2010-2-15 22:24

  X! a0 t+ p' b. }4 P' S, [“Firstly, the equipment or circuit is energized or not ?”------打得对：）