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?
Firstly, the equipment or circuit is energized or not ?
' ]3 j8 t2 B/ \3 F6 r% V! NIf 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 ?
! H7 y" }$ _% o- GIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
  |7 s( L% E/ H# _/ x6 Zjack_lai 发表于 2010-2-15 22:24

“Firstly, the equipment or circuit is energized or not ?”------打得对：）