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

, K4 y- _  K5 }' [. X; z
# ?5 W( ?/ R1 |  o2 BThe question is unclear?
Firstly, the equipment or circuit is energized or not ?
$ b+ ^' ~2 T6 n) G; \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 ?
8 R5 E' e! A( mIf 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

9 h! t; F: v# }: y1 s! A' c“Firstly, the equipment or circuit is energized or not ?”------打得对：）