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

- o  N' d5 I& D# Y
The question is unclear?
! q, ~3 ]. h2 j5 o; F! LFirstly, the equipment or circuit is energized or not ?
: I' Q! F& \+ |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 ?
If yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
, K4 S$ o+ b- i( p3 Cjack_lai 发表于 2010-2-15 22:24

% a# K1 H3 ~- V0 {$ c. y“Firstly, the equipment or circuit is energized or not ?”------打得对：）