wire color [RE-wrenches]

[Ray Walters]

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Hi All;

Color coding is definitely a problem. Consider that both Xantrex and 
Outback use Red for positive and black for neg. We use a meter to check, 
never assume polarity. I use red for positive that's legal for all 
instances. We use black for neg for lower voltage and when the negative is 
left ungrounded. If it is an ungrounded conductor then it is NOT required 
to be  white or grey. It should be black.
If its grounded we use white, or black with white tape stripes. I think 
black wire with a white stripe might be a good compromise. It is available 
in automotive wire.

Ray


>This could be problematic... if you go to work on a system you don't know what
>the wire colors mean until you determine if the system is grounded or not. I
>think this stems from AC wiring standards and colors being applied to DC
>systems. IMO someone needs to think this through and come up with a color code
>for DC that is the same regardless of the grounding or system voltage.
>
>Todd

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