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

+ M$ Q2 e. P+ ]& N2 \, j4 F  H: ?
- f+ v0 @, o. h' V# {The question is unclear?
% K1 P* l! H) J1 yFirstly, the equipment or circuit is energized or not ?
( ]! ]7 I' p/ f2 \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?
, ]/ Z# [; q3 b7 ?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…. ...
jack_lai 发表于 2010-2-15 22:24

/ _" b4 W# X; s“Firstly, the equipment or circuit is energized or not ?”------打得对：）