#14 AWG Commercial or Not

[adaptable]

I,m going to finishing wiring on a modular factory built commercial building that has multiple home runs of 14 gauge NM cable (in the crawl space). I,m trying to find the code article for this so I can make my case to the modular building Manufacturer.

 

[iwire]

There is nothing in the NEC that prohibits the use of 14 AWG. Why would there be?

 

[jwjrw]

Commercial here has to be a minimum of 12 but I think it is a local code.

 

[ceb58]

Commercial here has to be a minimum of 12 but I think it is a local code.

Local amendment or design issue is the only reason to not use #14 and 15amp circuits

I think it is a local code.

Is it a local code or local myth?

 

[jwjrw]

Local amendment or design issue is the only reason to not use #14 and 15amp circuits



Is it a local code or local myth?

How about this I know its a local code not sure if its a NC amendment.
Is that better?

 

[roger]

How about this I know its a local code not sure if its a NC amendment.
Is that better?

It is not an NC amendment and if I were you, I'd ask the local inspector where I could find it in writing.

Roger

 

[jwjrw]

It is not an NC amendment and if I were you, I'd ask the local inspector where I could find it in writing.

Roger

Im on the web site looking now..... Mythbusters here I come!!!!!

 

[roger]

Im on the web site looking now..... Mythbusters here I come!!!!!

Sometimes it does become a search for the truth. :grin:


Roger

 

[jwjrw]

Sometimes it does become a search for the truth. :grin:


Roger

OK Ive been told by several inspectors in the past it is not legal.......
I thought it was on web site.........havent found it....
Called one said it is.....told him I dont see it....says he will find it monday for me to call him.......I thought this was fact...you dont see 14 in comm here....
But if it is a myth I will admit and post.......I was spreading myths

 

[dana1028]

It is section 310.5 & Table 310.5 that allows #14 copper conductors...it's up to your inspector to find his [local] code section that disallows it.

 

[jimman]

Another question to ask is NM acceptable in a commercial application in a crawl space. (15 minute finish rating see 334.10):-?