ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
High current GFI vs regular GFCI
by HotLine1. 11/15/18 02:32 PM
This anti-theist is priceless!!!
by djk. 11/14/18 07:19 AM
Single phase and what you call it.
by dsk. 11/12/18 11:10 AM
220/230/240V 60Hz Systems
by Albert. 11/07/18 12:48 AM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 29 guests, and 26 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
2002 nec changes #80833
06/01/02 11:19 PM
06/01/02 11:19 PM
R
rb  Offline OP
Junior Member
Joined: Jun 2002
Posts: 2
rossville indiana u.s.a
i have a question regarding sharing a neautral conductor,i have not seen the new code book but have heard prior to realese that you now could not share neautral conductors on branch circuits.is this correct? if anyone could answer this i would greatly appreciate it.....thanks

2017 / 2014 NEC & Related Books and Study Guides
Re: 2002 nec changes #80834
06/02/02 06:47 AM
06/02/02 06:47 AM
F
Frank Cinker  Offline
Member
Joined: Jul 2001
Posts: 311
Pennsylvania
rb,

NEC Article 100, Definitions. Branch circuit, multiwire. The definition describes a shared neutral. As far as I know the new Code does not prohibit the use of a shared neutral. In some cases, for branch circuits feeding computer equipment it's better to run two 2-wire circuits instead of one 3-wire circuit.

[This message has been edited by Frank Cinker (edited 06-02-2002).]

Re: 2002 nec changes #80835
06/02/02 07:27 AM
06/02/02 07:27 AM
R
rb  Offline OP
Junior Member
Joined: Jun 2002
Posts: 2
rossville indiana u.s.a
thankyou frank for your help,i apreciate it.no this is going to be for a room addition in wich i plan to run two 23/3 romex from the panel to feed the lighting and receps.i usually do industrial work and thought i had better chek before the inspestor does.thanks again.....

Re: 2002 nec changes #80836
06/02/02 09:27 AM
06/02/02 09:27 AM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,903
NY, USA
rb,

Is this for a bedroom?
If so, what you may have heard was in refererence to the new requirements for AFCI breaker protection. If this is the case you would have to locate a special 2 pole AFCI breaker that will work with 3 wire circuits. At the present time the only brand I know of is Cutler Hammer and they may even be difficult to locate.

23/3 -?

Bill

Re: 2002 nec changes #80837
06/02/02 03:54 PM
06/02/02 03:54 PM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,371
AFCI's are the death of multiwire circuits..

Re: 2002 nec changes #80838
06/03/02 06:42 AM
06/03/02 06:42 AM
R
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
Are you sure you are not referring to the rule (408.21) prohibiting a neutral or grounded conductor from "sharing" a terminal lug that is not designed for more than one conductor?

Re: 2002 nec changes #80839
06/06/02 09:32 AM
06/06/02 09:32 AM
D
DB  Offline
Member
Joined: Mar 2002
Posts: 18
St. Louis
Should the ckts that share a neutral be fed from different legs? This way the neutral would only carry the unbalanced load.


DB

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Bill Addiss
Bill Addiss
NY, USA
Posts: 3,903
Joined: October 2000
Show All Member Profiles 
Top Posters(30 Days)
Admin 8
Popular Topics(Views)
251,490 Are you busy
188,679 Re: Forum
178,379 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.024s Queries: 14 (0.004s) Memory: 0.9845 MB (Peak: 1.1367 MB) Zlib enabled. Server Time: 2018-11-16 03:25:28 UTC