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

# f9 u- ?3 W  T* h- Q" p. p% BThe question is unclear?
Firstly, the equipment or circuit is energized or not ?
) k' m6 Z# M6 IIf 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?
% c( B9 F; \0 z7 _) G2 `! yFirstly, the equipment or circuit is energized or not ?
  I! F/ P0 [  T6 m+ w' B# ^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

& m3 S, y. u3 I7 M“Firstly, the equipment or circuit is energized or not ?”------打得对：）