Since the cord is going to be fixed wiring I don't think the cord
would fall under 590 Temporary installations even though it is for
temporary power so
400.8 seems like it would apply.
(1)"flexible cords and cables shall not be used for the fixed
wiring of a structure."
(2)"where run through holes in walls"
(4)"where attached to building surfaces."
Also, as I understand it, the ampacities listed in table 400.4 and 400.5
are the cord ampacity ratings. You can use these figures when derating
but for the termination requirements of 110.14(C)(1)you will ultimately need to comply with
table 310.15(B)(16) Even with 90 degree terminations #4
is still not sufficient for a 100 amp load.
Feedback on this appreciated.
