Let's talk about grounding

[work2much]

As far as I can discern grounding on a camper (or car) is primarily a way to use the frame as a convenient way to reduce wiring back to the battery. My camper came with a battery ground wire which I assume is fastened to the campers aluminum framing structure. As such I have grounded my inverter back to the frame as well. I assume other manufacturers installed components are also grounded to the frame.

In a home grounding is a means to transfer energy to the earth as to release unwanted energy and protect the home and it's electrical components during an unwanted spike such as lightning.

This is my take anyway. Feedback welcome.

Subsequently when I camp I typically lower at least one jack leg to the ground to make minor leveling and add stability. In this process I assume that I am at least partially grounding my camper to the earth. As such I am wondering if it would be good practice to join the solar panels with a common ground wire and attach them as well to the camper frame (or directly to jack leg) to make a lesser path of resistance rather than through my solar controller/battery etc. (solar controller does have fuses between itself and panels and also batteries)

Any thoughts?

[jimh406]

I don't think putting the leg down will make any difference.

[BB_TX]

For 12 vdc, the ground carries the full current that the positive wire carries. For 120 vac "home grounding", the ground normally does not carry any current except stray small currents induced from voltages in random circuits. That ground is not intended to carry any operational current. Jacks sitting the ground do not provide safety grounding.