jsr909203
Feb 15, 2011, 03:14 PM
I'm trying to power a 100 amp sub-panel and have a spool of "CAROLPRENE (R) WELDING CABLE - 600 VOLT - 4 GA " wire and was wondering if I can use this to reach my goal?
tkrussell
Feb 15, 2011, 03:23 PM
No, notice the marking on the cable states "Welding Cable".
First off, a "subpanel" must be fed by a wire fully rated 100 amps, either a #3 copper or a #2 aluminum.
Second, welding cable is considered as cord, and cannot be used as permanent wiring method.
#2 SER aluminum cable is very popular for what you need. Some areas require conduit, best to check with local codes to see what is allowed.
ma0641
Feb 15, 2011, 06:49 PM
I believe welding cable is considered "flexible" and as such is not permitted "as a substitute for the fixed wiring of a structure" NEC 400-8. The AWG may be the same but UL approval would not be the same.