Using much 12/2/2 NM cable?

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stickboy1375 said:
Yes, just about all my feeders requiring AFCI protection are fed by 14-2-2. I love the stuff, I also use it for GFI protection as well, All depends on what I'm doing, it saves labor in many ways, drilling holes, actually pulling the wire, termination, etc... I just use 4" sq boxes with mudrings for the conductor fill problem.
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What he said. Been using it since the AFCI requirements began. Definitely cost-effective, IMO.
 
fisbn said:
should these circuits still be on a common trip(2-pole)breaker?
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Nope. They're just in the same cable. No different than if you ran two circuits in pipe. Using 12/2/2 is not a multi-wire branch circuit. Just two circuits in one handy jacket. I started using it as more of a curiosity, but I really like it now.
 
quogueelectric said:
Ill get you my pretty/ and your little dog too.
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You're obviously a movie nut like I am. :) You need to drop in and see the HT next time you're in this neck of the woods.
 
fisbn said:
should these circuits still be on a common trip(2-pole)breaker?
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Notice the two neutrals... hence no 2 pole breakers required


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quogueelectric said:
I have been using it for years now it is great when you pull one wire out to ac compressors and you have your receptacle ckt right in the same jacket.
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Now, that's an application I like: two circuits intended for a single enclosure.

I haven't used any 2-2 cable yet, but I can picture it fairly well. I have read the thread through, so bear with me.

For afci ckts it clearly separates the neutral with only one homerun.
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Well, it's one jacket, but otherwise, I agree with Lou's comments in post #13. There is one fewer EGC in the panel, and you may even get two of these in a single connector. It doesn't seem especially better or worse than two 2-conductor cables.

The biggest detriment I see is that, when it lands in the first (24.75cu.in. or bigger) box, you then need to make connections to the second circuit's outgoing 12-2. That's a pair of splices you wouldn't otherwise have to make; the second home run would just run to the first box on its circuit as usual.

Now, I do see several good points with it. Let's say we're fishing a pair of new circuits in existing residential construction. Whether using a conduit sleeve or drilled holes, the single round cable is easier to pull through than two flat NM's, and even through a smaller diameter.

It sounds like something I'd like to have a roll of each gauge of in the van, but I doubt I'd use it for most work. It is definitely more expensive than twice the cost of 2-conductor here. It also makes Sharpie-ing :)rolleyes:) the jackets with the circuit names more confusing.


"Captain Kirk! I shall consider it!"
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LarryFine said:
You're obviously a movie nut like I am. :) You need to drop in and see the HT next time you're in this neck of the woods.
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Got a 2 and 4 yr old not easy to keep up at 50(Almost) I Still have the mind of a child so my wife says. What is HT?? Light just went off Home Theatre oh yeah thats my favorite install. Happy crazy customers that will part with sheckles and smile when you are done. The plasma king himself. Component or composite thier ears will flap when I am done. I love happy customers.
 
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Minuteman said:
Two other uses for 12-2-2.

H/V/L switch legs and a neutral.

Adding a 4-way to an existing 3-way circuit.
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Does that white/red condcutor still have to be made a solid color when used as a hot?
 
LarryFine said:
Does that white/red condcutor still have to be made a solid color when used as a hot?
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I going to tempting say oui .,, but however it possbilty but with the XX-2-2 NM's i think they used the same rules as standard XX-3 nm's are

but i will wait and see what other chime on this one sencie i did see it but myself i never get a chance to use it yet but one of the days i will.

Merci,Marc
 
Saves labor. Wonderful. Once the GCs realize this they'll want to know how much you'll be lopping off the Sq. Ft. And if you don't see fit to pass the savings onto the GC, another residential roper will. Those savings will never reach the homebuyer. So now, another bullet in the chamber pointed at residential electricians, and everyone is scratching their heads wondering why they can't make money wiring homes...
 
stickboy1375 said:
I use 14-4 or 12-4 for those applications, not 14-2-2, or 12-2-2.
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This may be a stupid question, but what is the difference in a 12-4wg and a 12-2-2.

Does the 12-4 only have 1 white wire?:confused:
 
C3PO said:
This may be a stupid question, but what is the difference in a 12-4wg and a 12-2-2.

Does the 12-4 only have 1 white wire?:confused:
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That is correct.

12-2-2 has two whites, 12/4 has one white.
 
This wire would be useful for the bath fan/light/heat since all conductors would be contained within the same cable. :) Oops, I notice this has already been pointed out.
 
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LarryFine said:
Does that white/red condcutor still have to be made a solid color when used as a hot?
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Larry
I am sure you know the code section [200.7(C)(1)&(2)]. The wording there is for cable assemblies.
So, the conductors (white, white-with stripes) has come as an identified grounded/neutral conductor. It would need to be re-identified as a ungrounded/phase conductor by the means permitted in the above mentioned section.
 
Wow! I learned something on this post. That's not easy for an old dog like me.2-2 NM sounds like the way to go.
 
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