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brookny 11-11-2011 10:15 AM

Conductors in Raceway
 
I am thinking of using raceway to add an outlet to an existing circuit. Can I run THHN wires through the raceway or must I use Romex? And what would be the maximum fill for 1/2" raceway? Would 3 12 AWG THHN wires, or 12/3 Romex, fit safely?

J. V. 11-11-2011 11:11 AM

THHN for raceway (conduit). Romex requires no raceway and is considered a cable. 3, #12 wires in a 1/2" conduit is just fine. You could add more if needed. THHN must be in a raceway/conduit.

rjniles 11-11-2011 11:23 AM

The raceway must be in a dry location to use THHN. For conduit in wet locations use THWN or dual rated THHN/THWN

brookny 11-11-2011 01:25 PM

It is indoors, but terminating within 2' of a kitchen sink, at a GFCI receptacle. That's still considered dry, right?

rjniles 11-11-2011 01:32 PM

Quote:

Originally Posted by brookny (Post 768601)
It is indoors, but terminating within 2' of a kitchen sink, at a GFCI receptacle. That's still considered dry, right?


That is dry.

Missouri Bound 11-11-2011 11:45 PM

Quote:

Originally Posted by brookny (Post 768506)
I am thinking of using raceway to add an outlet to an existing circuit. Can I run THHN wires through the raceway or must I use Romex? And what would be the maximum fill for 1/2" raceway? Would 3 12 AWG THHN wires, or 12/3 Romex, fit safely?

What is it that you are calling a raceway? Are you referring to a surface mount moulding?

kbsparky 11-12-2011 06:30 AM

Quote:

Originally Posted by Missouri Bound (Post 769116)
What is it that you are calling a raceway? Are you referring to a surface mount moulding?

Wiremold is a UL listed raceway....

brookny 11-12-2011 01:02 PM

I'm using wiremold

Missouri Bound 11-12-2011 01:38 PM

Quote:

Originally Posted by brookny (Post 769456)
I'm using wiremold

The wiremold should have fill capacity listed somewhere in the packaging or paperwork.


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