I use SJ cord. 16/3 for extensions, 12/2 for subs and 10/3 for main power. Rated 300V severe duty portable use. It's got a high strand count which makes it more flexible than cords that use less, thicker strands. If it's UL listed, your good. The whole copper quality, o2 free crap is for the birds. Annealed copper 99%.
I even have a 6/3 SO cord 150' long I "saved" from a machine tearout. I put heavy duty 30A 240V plugs on it, and use it with my genset on "out there", outdoor shows.
I even have a 6/3 SO cord 150' long I "saved" from a machine tearout. I put heavy duty 30A 240V plugs on it, and use it with my genset on "out there", outdoor shows.