- Location
- Bremerton, Washington
IMO, there should be a standard color code for 120/208v and 277/480v systems ( black, red, blue, brown, orange, yellow) . I guess the NEC thinks it is more important for them to design circuitry and pull neutrals to switches that may never be used.
There used to be a color code requirement and it was removed in mid 70's. The CMP does not want you to assume a red wire is 120 volts when its acutually 277. This is due to what I call the truck answer:
4 Answers to a Code Question
1. Code Answer
2. AHJ Answer
3. Toms Answer (me)
4. Truck Answer