ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
AreMetal Ladders Ever OK For Electrical Work?
by HotLine1. 01/22/18 07:31 PM
Photocell
by twh. 01/22/18 05:06 PM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 24 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
12-2-2? #82894
12/21/02 12:02 AM
12/21/02 12:02 AM
G
ga.sparky56  Offline OP
Member
Joined: Nov 2002
Posts: 558
young harris georgia usa
Saw some some of the new 12-2-2 nmb today. One of the white wires has a red stripe or tracer on it, can this be used as agrounded conductor or neutral whichever term you prefer.

2017 / 2014 NEC & Related Books and Study Guides
Re: 12-2-2? #82895
12/21/02 07:40 AM
12/21/02 07:40 AM
E
Electricmanscott  Offline
Member
Joined: Jan 2002
Posts: 1,457
Holden, MA USA
I don't see anything ragarding a red stripe but the point is not to use the stripe to identify it as a neutral but to distinguish it from the other neutral within the cable. I don't see a problem with it. The reason for this cable is to provide two circuits.

Re: 12-2-2? #82896
12/21/02 05:35 PM
12/21/02 05:35 PM
R
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
Although this new product seems to be, technically, a violation of 200.6(A), I believe it will eventually be recognized by the NEC. I doubt an inspector would shoot down an installation utilizing this cable.

Now, as far as the term "neutral"... [Linked Image]

[This message has been edited by Redsy (edited 12-21-2002).]

Re: 12-2-2? #82897
12/21/02 09:30 PM
12/21/02 09:30 PM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
Seems a bit odd because the assembly would require an 80% adjustment factor, right? [99 NEC] Table 310-15(b)(2)(a). "...More than Three Current-Carrying Conductors in a...Cable".

Re: 12-2-2? #82898
12/21/02 10:33 PM
12/21/02 10:33 PM
R
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
Bjarney,
You are correct, but NM cable uses 90°C conductors and an #12 with an 80% derating is still over 20 amps. With 2 of these cables bundled together we would have 8 current carrying conductors and 70% derating. The ampacity would be 21 amps.
Don


Don(resqcapt19)
Re: 12-2-2? #82899
12/21/02 10:45 PM
12/21/02 10:45 PM
G
ga.sparky56  Offline OP
Member
Joined: Nov 2002
Posts: 558
young harris georgia usa
Redsy,200.6(a)is what I thought of,but now Bjarney says I have to derate it,Wonder how many ahjs will allow it without derating?

Re: 12-2-2? #82900
12/21/02 11:02 PM
12/21/02 11:02 PM
G
ga.sparky56  Offline OP
Member
Joined: Nov 2002
Posts: 558
young harris georgia usa
Thanks guys,I pulled several runs of it today in an old farmhouse renovation. I feel abit better about it now.


Featured:

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

 

Member Spotlight
RH1
RH1
California
Posts: 22
Joined: August 2009
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
sparky 15
Potseal 15
Popular Topics(Views)
243,602 Are you busy
180,416 Re: Forum
170,873 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.026s Queries: 14 (0.004s) Memory: 0.9821 MB (Peak: 1.1360 MB) Zlib enabled. Server Time: 2018-01-23 21:17:03 UTC