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

The question is unclear?
8 Q& P, L1 U8 m1 T* W- @$ E) Z9 d) 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?
  k) e4 K) [! n  P4 z3 \# U5 UFirstly, the equipment or circuit is energized or not ?
+ e8 j' j5 |( K7 |( ?3 Q0 jIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
' T  M4 @! d# ijack_lai 发表于 2010-2-15 22:24

6 Z, _! j6 e" }8 Y" H' O+ V; e“Firstly, the equipment or circuit is energized or not ?”------打得对：）