Can anybody tell me the code re reference for color coding of 120/208-240 and 480v systems. And proper phase order by color code? Only thing I have ever seen is orange for a high leg. And grounding conductor, and grounded conductor id. Just got a spanking for B-O-Y on 480. I know some use purple, he says orange is a code violation. I know AHJ has the right. Not questioning that. Purple - L1. Brown - L2. Yellow - L3. Maybe, I just need to study up, but I have never seen this. I'm used to good ole "BOY"