Stripping NM-B For Use In Wiremold. No Can Do, Right?

[Marilyn Manson]

You are not allowed to pull the individual conductors from a length of
NM-B cable and use them inside surface mounted Wiremold, correct?

The individual conductors aren't labeled, so I believe this violates 310.11.

Any way around this, other than leaving all my extra NM-B on the shelf and
buying THHN?

What code section would be violated if the sheathing was stripped only
at the turns so that the Wiremold 90's could be used? The rest of the cable
would still be marked. ;-)

[gfre...@aol.com]

It is a violation seldom called unless the inspector just wants to be
a prick.
Yeah there are a few.
Most inspectors understand NM-B contains THHN and the lack of writing
is not killing babies.
I would be far more likely to give a homeowner a huss tho than a
contractor because they should have the right materials for the job.

[Marilyn Manson]

Thanks.

By "huss" I assume you mean "pass".

And I assume you'd prefer the full strip vs. just at the bends.

Can the ground be bare?

Does plastic vs metal Wiremold matter?

[gfre...@aol.com]

On Fri, 15 Oct 2021 05:47:54 -0700 (PDT), Marilyn Manson

<comawhit...@gmail.com> wrote:

>On Thursday, October 14, 2021 at 10:41:27 PM UTC-4, gfre...@aol.com wrote:
>> On Thu, 14 Oct 2021 12:36:56 -0700 (PDT), Marilyn Manson
>> <comawhit...@gmail.com> wrote:
>>
>> >You are not allowed to pull the individual conductors from a length of
>> >NM-B cable and use them inside surface mounted Wiremold, correct?
>> >
>> >The individual conductors aren't labeled, so I believe this violates 310.11.
>> >
>> >Any way around this, other than leaving all my extra NM-B on the shelf and
>> >buying THHN?
>> >
>> >What code section would be violated if the sheathing was stripped only
>> >at the turns so that the Wiremold 90's could be used? The rest of the cable
>> >would still be marked. ;-)
>> It is a violation seldom called unless the inspector just wants to be
>> a prick.
>> Yeah there are a few.
>> Most inspectors understand NM-B contains THHN and the lack of writing
>> is not killing babies.
>> I would be far more likely to give a homeowner a huss tho than a
>> contractor because they should have the right materials for the job.
>
>Thanks.
>
>By "huss" I assume you mean "pass".

Sorry, old USMC thing, yes

>
>And I assume you'd prefer the full strip vs. just at the bends.

I would prefer THHN but if you are doing it, why not strip the whole
run? Less chance of nicking a wire and less chance of attracting
attention to the violation.

>
>Can the ground be bare?

Green, Green and Yellow stripe or Bare.

>
>Does plastic vs metal Wiremold matter?

No

[Marilyn Manson]

Complete stripping was my plan, but since I mentioned both methods
in my OP, I just wanted to be sure about which one you were "approving".

Nicking was also something I had thought of. I'm pretty good with a
circular saw though, so it wouldn't really be a problem. ;-)

It may end being THHN anyway. I'm branching off an existing circuit
that might be 12g. I have more than enough 14g lying around, but
probably not enough 12g. I'll know tomorrow.