TWHN Wire

[petersonra]

I got a project that specs the use of TWHN wire. Is there such a beast? I've heard of THWN, but not TWHN. maybe a typo. But its repeated at least a dozen times.

 

[bphgravity]

Re: TWHN Wire

I don't see that type in Section 310.13, so I would guess that it is indeed a typo.