Regarding the article HotLine posted above, does this mean we can still us the 90C column for derating purposes for NM cables or must we now start at 60C.
"The temperature correction and adjustment factors shall
be permitted to be applied to the ampacity for the temperature
rating of the conductor, if the corrected and adjusted
ampacity does not exceed the ampacity for the temperature
rating of the termination in accordance with the provisions
of 110.14(C)."
