I was thinking about color codes again and looking through my one & only U.S. wiring book.
Two questions:
#1. Cases where a switch is at the end of a run with 14-2 or 12-2 Romex. All the examples in the book show the black wire run switch to light and the white wire, tagged black, for the hot feed to the switch. Is this the usual arrangement, or is it sometimes done the other way around?
#2. 277/480V services again. If the neutral is gray and the 3 phases are brown, orange, yellow (or brown, purple, yellow), what colors are used for a single-phase branch to, say, 277V lighting? Brown & gray?
