TMON,

I've been using the brown, yellow & purple myself for some time. It might avoid the confusion if there is also a lower voltage system on the premises.

I wish someone would figure out how to keep electricity from flowing through a green colored wire (except under fault conditions) I've lost count of how many times I've found green to be one leg of a 480 system. Like one of my buddies sez "electricity don't care what color the insulation is."

At the power plant up the road from me, the hot conductors are black, red and white, NEC does not apply in this case. This scheme also seems popular at aboveground facilities of coal mines where the NEC is supposed to apply.

[This message has been edited by Tom (edited 08-20-2001).]

Few things are harder to put up with than the annoyance of a good example.