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

0 N0 H* C) y* ^2 M
- ~* I8 c. K& s* K# X# eThe question is unclear?
Firstly, the equipment or circuit is energized or not ?
/ _; c! d  N) d, w, [0 O# ^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?
/ _+ S4 f' P6 s: D+ PFirstly, 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…. ...
jack_lai 发表于 2010-2-15 22:24

# e% q; A. ]' Z, t4 T, B' H“Firstly, the equipment or circuit is energized or not ?”------打得对：）