New member, first post - hope I don't balls it up! First off, I'm no expert here, just have an understanding of the basics. Hoping for help from someone that knows more than me.
So I've been looking into motorhome wiring (self-conversion, Renault Master van) and have been looking at ways to avoid voltage drops. Voltage drop calculations is of course done by taking into account both positive & negative wires.
I've checked, and most of the time it seems there'd be LESS of a voltage drop risk over longer distances (say, 8 meters or so, allowing for going up walls, along ceiling, down walls etc) if used the vehicle body as an negative return. This would be a return to a leisure battery, and the leisure battery would be grounded to the vehicle, too.
There's some info I found on the difference in voltage drops using a wire return, vs. using a vehicle chassis as a return. Not quite the same scenario as me, though - but some interesting calcs: https://mechanics.stackexchange.com/...attery-neutral
BUT - I'm imagining there's some issues with this (using the vehicle body as an earth return)? Things like alternator noise risk of course, but anything else? What about if the inverter was grounded (not as a neutral return, but application-grounded from the inverter body to the van body) - any risks here?
Hoping someone that knows more than me can let me know what's that
Thanks in advance!