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Arc Fault #74128 01/13/07 10:55 AM
Joined: Mar 2002
Posts: 125
S
Sparks30 Offline OP
Member
I know it been a while since I logged in, but I browse almost every night. I would like some input on a question that came up at the supply house. They are telling me the local inspector it requiring us to install 14-2-2 romex for the bedrooms. Now I have installed many Arc fault with regular 14-2 romex. Has anyone else hear of this. The 14-2-2 has two nuetrals going to it. One on the breaker and the other to the bar. Thanks

Work Gear for Electricians and the Trades
Re: Arc Fault #74129 01/13/07 11:21 AM
Joined: Feb 2003
Posts: 687
A
Active 1 Offline
Member
The only person that has the corect answer is the inspector or you could try and ask for the amendments/electrical code. Many places here have their building code online.

We don't use Romex here but the first thing I thought of was what if you only had a 1 BR home. Or a 2 BR you wanted to put on 1 circuit. What if the 2 BR home had the BR's on different floors or sids of the house.

My guess is just another code mith. Probibly came about by an apprentace saying why do we need to use this stuff and an owner not wanting to explain just saying bucause it's code now.

Re: Arc Fault #74130 01/13/07 11:48 AM
Joined: Jul 2004
Posts: 9,541
G
gfretwell Offline
Member
What would you do with the second neutral?
You need two current carrying conductors with balanced current on each. Any connection to another neutral would trip the breaker.


Greg Fretwell
Re: Arc Fault #74131 01/13/07 11:57 AM
Joined: May 2003
Posts: 2,876
E
e57 Offline
Member
Considering that you are getting this information 3rd hand at the supply house counter, I would pay little head to it.

Active 1's advice about checking the local codes is a wise idea. Although there in no physical difference electricaly speaking in having 2 circuits in either (2) 12/2 cables, or a single 12/2/2 cable, there may be some other factor. For instance, localy I am required to have all conductors identified by the phase they are on, and not 'technically' the way the local code is written to phase tape them for identification, they need to have the color in the pigment of the insulation. So that means I would either have to get red/white conductor romex, or use 12/2/2. (Or 14/2/2 depending on the circuit.) FYI CH makes a 3-wire AFCI breaker....

Quote
One on the breaker and the other to the bar.
I have no idea what purpose that would serve or why it would need to be done.... Sounds BOGUS......


Mark Heller
"Well - I oughta....." -Jackie Gleason
Re: Arc Fault #74132 01/13/07 02:56 PM
Joined: May 2002
Posts: 1,716
R
Roger Offline
Member
Sounds to me as though the guys at the supply house get a commission on their sales.

Roger

Re: Arc Fault #74133 01/14/07 09:57 AM
Joined: Mar 2002
Posts: 125
S
Sparks30 Offline OP
Member
I'll check with the inspector on Monday. Just wondering what everyone else uses or has heard of this. Thanks

Re: Arc Fault #74134 01/14/07 10:52 AM
Joined: Jan 2007
Posts: 59
D
dilydalyer Offline
Member
Never heard of any of this throughout the Florida romex panhandle...

Re: Arc Fault #74135 01/14/07 01:14 PM
Joined: Feb 2003
Posts: 231
R
RobbieD Offline
Member
This is from-

http://www.mikeholt.com/mojonewsarchive/AFCI-HTML/HTML/AFCI_Update~20030320.htm


12-2-2 NM “Romex” was introduced to allow home runs for two AFCI circuits, as an AFCI can not have a shared neutral (due to ground fault protection). However, at least one manufacturer (Cutler Hammer) offers a 2-pole AFCI for home runs. Standard 12-2-1 NM “Romex” can be used. The 2-pole AFCIs are available with/without common trip for overcurrent and overload conditions; the trip is always common for an arcing or ground fault.

Re: Arc Fault #74136 01/14/07 01:27 PM
Joined: May 2002
Posts: 1,716
R
Roger Offline
Member
Robbie, that makes sense.

Roger

Re: Arc Fault #74137 01/14/07 08:11 PM
Joined: Jul 2004
Posts: 9,541
G
gfretwell Offline
Member
All this to save a ground wire?
I can't imagine you are saving that much money.


Greg Fretwell
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