I get to 400.8 (not permitted) "(6) Where installed in raceways, except as otherwise permitted in this Code" ... and I am trying to find out where it is permitted.
Physical damage? 400.14?
BTW Reno, there are plenty of inspectors who would write a 110.3(B) for loose conductors from a cable or cord in a raceway. "What kind of wire is that? It doesn't say on the insulation"