Running 110v underbody
What have folks seen from the OEMs for the 110v wiring when it is underbody? Our Roadtrek only had 110v from the generator to the transfer switch that was partly under the van, and they ran Sealtite conduit from the genny to floor, but then only THHN single wires in loom from there to the transfer switch. This just doesn't sound like a good idea to me, having unprotected 110v wires in the bolster with the pump and other stuff where it could be damaged or rub on something, even in loom.
When I do our upgraded charging, I need to upgrade the shore power to the charger, so I have to run 30a worth of power to it. I also want to put the whole van on the bigger inverter, so I will also need 30a wiring back to the main input wiring. The only reasonable way to do it is going under the van, it appears.
Right now, the thought is to use 10/3 underground feeder cable (waterproof in case of leaks) in Sealtite between the two floor connections, and then just the UF in loom from there, like the rest of the van wiring is done with Romex, on the inside of the van areas.
Does this sound reasonable--and even more--safe?