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

% C+ G5 ?6 \5 W. A: Y9 ?' w5 f
The question is unclear?
Firstly, 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?
" B- m3 \7 a* G4 F+ wFirstly, the equipment or circuit is energized or not ?
8 {0 Z* ^7 @) o2 e( E* dIf 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

# X0 ?8 X; W  x9 C9 H“Firstly, the equipment or circuit is energized or not ?”------打得对：）