Kinda a suggestion that if he is using a cable method to look in each Article called out in T. 396.10(A) but if it's single strands of wire as identified in T. 310.3 or T. 310.6 he would not be able to comply with the (B) part of 396.10 and not be able to use it in residential. And, Yes tom triplex probably would be the best approach. IMHO
