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?
8 v, u3 s( e6 e( E. q% qFirstly, the equipment or circuit is energized or not ?
5 a( R1 d% Z( b( b! ~  b+ k, A6 \5 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?
Firstly, the equipment or circuit is energized or not ?
% ]+ O# U% r0 @  ^, F& S( ~+ RIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
7 n- P7 N- k/ V8 Q. v& M8 tjack_lai 发表于 2010-2-15 22:24

2 H/ c4 _% `$ P+ s- v“Firstly, the equipment or circuit is energized or not ?”------打得对：）