DaveInDenver
Middle Income Semi-Redneck
There are many standards for low voltage wiring and even some that specify the color used. As far as I know, though, there's not a unified SAE for vehicles. But the convention for accessories is red is +12V and black is battery return.
The British BS-AU7 depreciates red to a switched use (side marker lights or something I think) in favor of purple and brown for mains, but I don't know if this has any adherence. Boats generally follow the automotive standard for red being mains, black or yellow as return, green would be grounding.
My question here is what color do people use for derived voltages? In my specific case I'm wondering if anyone has selected a common for +5V rails on trucks and motorcycles. I'm trying to select a Powerpole housing color to use for a GPS power lead on my motorcycle and my inclination is to select grey or white. The wire itself will be red but the connector being odd should at least give a visual warning not to do something dumb.
The British BS-AU7 depreciates red to a switched use (side marker lights or something I think) in favor of purple and brown for mains, but I don't know if this has any adherence. Boats generally follow the automotive standard for red being mains, black or yellow as return, green would be grounding.
My question here is what color do people use for derived voltages? In my specific case I'm wondering if anyone has selected a common for +5V rails on trucks and motorcycles. I'm trying to select a Powerpole housing color to use for a GPS power lead on my motorcycle and my inclination is to select grey or white. The wire itself will be red but the connector being odd should at least give a visual warning not to do something dumb.