jsmith05
Member
- Location
- Dallas, TX
Does the NEC allow mulitconductor cable 4/0 in larger in ventiliated cable tray without having to space the cable one cable diameter or greater, that is assume the multiconductor cables are installed in a single layer side by side with no spacing and do not exceed the tray widith? If so is the ampacity table 310.16 and no derating is required? Does the grounding conductor required to be single layer or can it be on top of the cables?