I am building a Tiny house on top of a steel trailer. My tiny house on wheels will be mobile and off grid with batteries charged by PV array. Will have the occasional plugin to a Generator for extra charging if need be.
My question is how does the ground circuit work in this scenario.
- Does the earth wire from the inverter, MPPT, PV panels grounds, battery casing, AC power outlets, lights, trailer frame, etc all join to a copper steak that I can drive into the ground when I park the trailer?
- Should the battery negative also be joined to the earth buss bar?
I have attached a rough diagram of how I think the earth circuit would go (earths in green). Could someone please let me know if this looks right. I quickly drew this diagram mainly for to show the earth circuit so I do apologise about the rough nature and any symbols that aren't quite right.