said by Mr Matt:
I appreciate your help. I spent about an hour looking for the specifications on jacketed 4 Conductor so I can figure out what type by letter code I should purchase. There are so many letter codes for cable and wire I need help determining the letter codes for the cable which would meet the electrical code for my application. The devil is in the details.
Let Nunya and Whizkid give advices on that.
Though NMD90 isn't going to be recommended for conduit.
TW90 or RW90 would be best, but I dont know how those are "viewed" when not in conduit (in the attic).
Plus, the attic... super hot ambient temperature in there! So many factors involved!