Re: Simple distribution box
i would suggest that if you are going to use electric heaters in the winter that first you should get a real rv shore cord - like a 30 or 50' one. That will carry the load you require. After all, if you use heaters in the winter, you will want to run ac units in summer, and you will need more than 30 amps if ya run two of those.
you could purchase a used motorhome electrical panel that has the main and secondary circuit breakers, and the converter from a person scrapping a rv on craigslist, or something like that pretty cheaply. Then you could run normal house wiring like from lowes to wall recepticles on each side of the bus, which would make it handy to have electricity wherever you needed.
if you have done house wiring this will be pretty simple. you will also need to install either ground fault circuit breaker for the circuit that goes near any water supply line, and you need to be sure to properly ground your ground wire to the chassis... and of course, check your work as you go so that you don't run a hot wire to the chassis, or reverse a set of wires.
if you are planning on adding more and more stuff in the bus, it would be best to plan you wiring system and install the highest amperage rated system the first time so you dont have to tear out all the wiring and do it over again.. probably a 50 amp system would be best..
not always but in most cases. personally, i have a 30 amp system because i have all propane appliances, and a generator, and battery bank and inverter and am going to tie in a solar system pretty soon.
Jesus Christ... Conversion in progress.