Wire color & codes question

[jlewinski]

I've been searching everywhere for information and so far, it appears that anyone with any knowledge is here in this forum! Therefore, I registered without hesitation! However, after searching through the archives, I'm still unable to locate what I'm looking for, although it's still early and I'm probably not awake yet.

It's common knowledge that BLACK=hot, WHITE=neutral & GREEN=ground and that they're attached to BRASS, SILVER & GREEN/BRASS terminals respectively (at least here in the States). The Europeans use BROWN=hot, BLUE=neutral and GREEN w/YELLOW stripe=ground.

Can anyone tell me if there is an actual CODE somewhere that actually defines this? Where can I get a copy of it if it actually exsists?

Any help that can be supplied is GREATLY APPRECIATED! :D

[imported_Ron]

The only regular code-reserved colors are white, gray, and green (for neutrals and grounding).

Generally most follow below, but it is not a code:
For 208/120V systems: Black, Red, Blue for A,B,C phases
For 480/277V systems: Brown, Orange, Yellow for A,B,C phases

No code for most conductors except ground, neutral (as stated) and then some other "oddball" applications.

For an isolated power system in a health care facility, orange, brown and yellow are required for the isolated conductors. Article 517

110.15 High-Leg Marking.
On a 4-wire, delta-connected system where the midpoint of one phase winding is grounded to supply lighting and similar loads, the conductor or busbar having the higher phase voltage to ground shall be durably and permanently marked by an outer finish that is orange in color or by other effective means.

[jlewinski]

Thanks Ron, that's kinda what I figured. It's interesting how something like this becomes an "unwritten rule". You'd think that an actual code would be adopted after all these years of common usage.

Have a great weekend.