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

+ k) C1 ~* ^: B/ w2 m. y& b# x8 n
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?
8 g* w  p  f+ Q& F& C" R) KFirstly, the equipment or circuit is energized or not ?
: x' F# C0 O3 [7 qIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
8 D; \, O1 L* W5 f' \1 q* a5 Jjack_lai 发表于 2010-2-15 22:24

“Firstly, the equipment or circuit is energized or not ?”------打得对：）