Hi Terry:
Be careful with the colors green, green/yellow, and yellow.
All three colors are reserved for safety-earth wiring:
Green: North America
Yellow: Europe
Green/yellow: International (compromise)
You can use these colors within your equipment where you
don't interface with the outside world, and where the wires
are clearly not used for safety-earth wiring.
Do not use these colors for signal earthing. This is because
the circuit would then need to meet the constructional and
performance requirements for safety-earthing. (By definition,
such colors are reserved for safety-earthing; any wiring using
these colors is therefore safety-earth wiring and the circuits
must comply with safety-earthing requirements.)
Also, be aware of the following uses:
Brown: Live (Europe)
Black: Live (North America)
Blue: Neutral (Europe)
White: Neutral (North America)
The same advice applies: Don't use these colors where they
could be confused with building mains wires.
Best regards,
Rich
+===========================================================+
|Richard Nute |Quality Department |
|Hewlett-Packard Company |Product Regulations Group |
|San Diego Division (SDD) |Tel : 619 655 3329 |
|16399 West Bernardo Drive |FAX : 619 655 4979 |
|San Diego, California 92127 |e-mail: [email protected] |
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