Topic: How far back does 210.5 - color coding - go?

User: Ragin Cajun, Location: Upstate S.C.

Asked on: Wednesday, March 23, 2011 at 2:36 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:10 am EDT

Question: My code books go back only to 1993. When did the NEC start requiring phase identification by separate color coding?Thanks,RC