Do you use white=negative, black=positive for DC in your RV?

westend wrote:
Heatshrink is your friend.

It is great stuff, but I don't keep multiple colors - just red and black. I have tape in a dozen colors. I mark my converter cables with blue (then red/black), my engine start cables with gray (then red/black) and my inverter cables with yellow (then red/black). I have three 12 volt systems (engine, RV and generator) and each has it sown color for sensing and control.)