Is it legal to use a 4 conductor cord in place of 4 individual wires to run a circuit in EMT from the 3 phase distribution panel to a 3 phase air compressor? The cord has Red/Black/White/Green wires. At either end of the cord where the outer sheath is skinned back, can the white wire be wrapped with blue tape to indicate it is one of the hot leads instead of a neutral?
Has anyone encountered cable that is listed both as a flexible cord (one of the cable types in table 400.4) and which is _also_ listed as a cable assembly suitable for fixed wiring (eg. type NM, TC or one of the others)?