Originally Posted by lewster
After working on many large RVs with 50 amp service and that nasty, semi-solid THHN 'stranded' 6AWG cable (it is usually comprised 7 large strands, vs. several hundred 30AWG strands found in marine grade cable) over the last 16 years, the flexibility and ease of bending and working quality marine cable far outweighs any cost savings for big-box wire purchases.
I run thru thousands of feet of cable a year and would never dream of using anything but fine, multi-strand marine cable or similar welding cable.
Lewster recommended the marine grade wire for my restore. It is so nice to work with!
You won't be sorry.