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

) p; S6 J7 z5 s" e$ Q* l5 v# j% z" l
The question is unclear?
5 [/ Q) N4 E9 wFirstly, 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?
Firstly, the equipment or circuit is energized or not ?
  ~& t* ^8 m: N/ V5 u9 `If yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
3 g' V& s6 q, Ijack_lai 发表于 2010-2-15 22:24

8 q1 O: L3 H- a+ t5 ]  F4 A“Firstly, the equipment or circuit is energized or not ?”------打得对：）