shader
Jul 19, 2012, 02:44 PM
Is the THHN and THNN designation equivalent, or is there even a THNN designation?
Due to convience I ordered wire over the internet- THHN. The lable indicates THHN but the wire marking indicates it is THNN. It also has the usual THWN-2 marking. I can't find the THNN designation in NEC table C.1. The wire is Southwire produced on 4/8/11, the Southwire site makes no reference to THNN, and a web search reveals nothing. Any ideas?
Due to convience I ordered wire over the internet- THHN. The lable indicates THHN but the wire marking indicates it is THNN. It also has the usual THWN-2 marking. I can't find the THNN designation in NEC table C.1. The wire is Southwire produced on 4/8/11, the Southwire site makes no reference to THNN, and a web search reveals nothing. Any ideas?