Earthing lifepo4 campervan

[LifeIsADeam]

Edit- found my answer. Better to ground to bus bar which goes straight to neg battery terminal. Earth to chassis not needed.

Hi, any advise is appreciated. Do i need to earth the negative bus bar to the chassis with a lifepo4 system in campervan?

 

[HRTKD]

I put in a separate ground bus bar. Those devices that call for a ground get wired to the ground bus bar and then the ground bus bar is wired to the RV's frame.

 

[LifeIsADeam]

Thank you for the reply. If i have a twin cable for all devices which all negatives get run to the negative bus bar, which then goes to bms negative, is this not sufficient? Im just confused as i never see mention of earth to chassis in Will's info.

 

[HRTKD]

Very few devices in an RV use a (dedicated) ground wire. Only the major items like maybe a furnace, water heater, the main power distribution panel and other big items use a dedicated ground wire. In my trailer I followed that same pattern. My inverter, MPPT and converter all have dedicated ground wires going to the frame.