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?
/ {2 k7 M3 h* M9 `Firstly, the equipment or circuit is energized or not ?
: y( b. i+ g, j! {, A* B* LIf 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?
1 |4 d) @' }& d0 d) T* oFirstly, the equipment or circuit is energized or not ?
/ L  J1 A5 ]. ?% bIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
; l/ k3 E) Q- ~0 Rjack_lai 发表于 2010-2-15 22:24

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