How many wires in a conduit?
I get called by the inspectors here in the small city of Seattle, if I run more than three current carrying cond for more than 24″ in any conduit, they must all be de-rated by table 310.15(B)(2)(a) The de-rating of your conductors can range from 80% of capacity to 65% of capacity. Hope this saves you a big headache later. Good luck…..