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

* u7 K, P! j7 u9 l4 @The question is unclear?
; Y% t4 s! \; O5 d0 H# g" k. e# GFirstly, 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?
4 c' k& R7 {% S( k5 u' fFirstly, the equipment or circuit is energized or not ?
2 J4 q7 o. J7 X5 \. q/ {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

' q4 L5 L2 n9 @9 |, c“Firstly, the equipment or circuit is energized or not ?”------打得对：）