what is common


  #1  
Old 07-04-04, 10:00 AM
streetrodder
Visiting Guest
Posts: n/a
what is common

what is common in elctrical wiring and how is it used?
 
  #2  
Old 07-04-04, 10:56 AM
R
Member
Join Date: Sep 2003
Location: Central New York State
Posts: 13,246
Upvotes: 0
Received 0 Upvotes on 0 Posts
Whay do you ask? Have you seen it used in a certain way and want to know what it means?
 
  #3  
Old 07-04-04, 04:01 PM
Andrew's Avatar
Member
Join Date: Apr 2003
Location: USA
Posts: 952
Received 14 Upvotes on 10 Posts
I have heard the neutral referred to as the "common" wire. It's function is to return the electricity to it's source.
 
  #4  
Old 07-04-04, 04:33 PM
J
Member
Join Date: Sep 2000
Location: United States
Posts: 17,733
Upvotes: 0
Received 1 Upvote on 1 Post
"Common" is not a precisely defined term in electrical work. However, most people understand that, informally, it usually refers to what most people call the "neutral" wire, or the "return" wire. Officially, it's called a "grounded" wire, but only an electrician could love that term--most people would be confused by that term, thinking we're talking about the "grounding" wire.

Street, if you give us the larger context of your question, we can help more.
 
  #5  
Old 07-05-04, 06:44 AM
W
Member
Join Date: Jan 2004
Location: Oregon
Posts: 1,104
Upvotes: 0
Received 0 Upvotes on 0 Posts
Another way in which the term 'common' is used in electrical wiring is for three way switches. One of the terminals will be called the common terminal, and the other two terminals will be called the 'traveller' terminals. The common terminal is _always_ connected to the switch blade, and the traveller terminals are selectively connected to the switch blade by the position of the switch.

-Jon
 
  #6  
Old 07-05-04, 10:34 AM
J
Member
Join Date: Sep 2000
Location: United States
Posts: 17,733
Upvotes: 0
Received 1 Upvote on 1 Post
How could we have overlooked that? Thanks for pointing that out Jon.

As I say, context would be good.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: