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

! g: Z* K# \; ]7 B( W/ S: o
# R. H2 b( \" v$ ^) ?The question is unclear?
Firstly, the equipment or circuit is energized or not ?
7 k5 S! d! {; {1 B7 g# v: k) kIf 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?
1 z* f2 g% H! v1 mFirstly, the equipment or circuit is energized or not ?
- {: ?9 J- N  k* K) ^4 x6 `; H* ?If yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
' I3 X: Z9 _3 z& S, B" B! A. `& gjack_lai 发表于 2010-2-15 22:24

( p" U% G% u9 a  v“Firstly, the equipment or circuit is energized or not ?”------打得对：）