Forum Discussion
TreeSeeker
Jul 12, 2017Explorer
Griff wrote:
Color-coding for residential and commercial 120/240VAC wiring is different from what little standards exist for motor vehicle wiring. (And both are often different from ABYC standards for boats.)
Yes, I knew that but I assumed that since vehicles always use a black battery cable to ground that black was ground in general.
Well, I just found that that was an incorrect assumption. I went out to my RV (79 Fleetwood), and took off a light fixture. Well, the white wire goes to ground and the black is positive. So it seems this is "standard." Who dreams this stuff up? I guess I never really paid attention. My bad.
Oh, and then I looked at my house battery and there are three cables to the negative terminal--one black, one red, and one white! Ok, these don't look stock so who knows when that happened. I wonder why no purple?
Maya, make a note: White to negative, black to positive--unless it is a battery cable. Always check with a meter too.
Maybe on Tuesdays everything is different...
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