We used to do construction and had a lot of really heavy duty exterior cords that we stretched out from the far away temp power pole and ran table saws, planers, compressors and various other tools (sometimes all at the same time). We invested a lot of money into our extension cords as they were very important to our job and we could not afford the down time from burning out a cord or tool. There are many levels of "heavy duty" cords. After Christmas is a very good time to buy those Christmas exterior heavy duty cords. I used to post on a coach forum where I got a lot of info from some pro coach converters. One of these was Fred Hobe of North Florida Coach Conversion. Back when we had the Eagle 05, I exchanged a lot of PMs with him, asking a lot of newbie questions. He was very generous with his advise.
He wired up his coach (and many others) using 12/3 heavy duty extension cords. We did too. They make a nice neat job of the wiring. We also supplimented with the wiring we salvaged from the Eagle (marine quality). So the Blue Bird has a little Eagle in her.
We used good quality crimp on connectors where we wired to the outlets and the panel box. Several here object to how we wired up our bus. I will take the advise of Fred Hobe. I know him, his reputation and his work far better than anyone posting here. Most of the info I have gained comes from adapting what I learned on the coach conversion forums and from our decades in residential construction. It's why we call our bus a Residential Vehicle
not a Recreational Vehicle
. And there is a difference between the two.
Lots of good info here. Aimed towards highway coaches in general and MCI's in particular. Most of the info can be adapted to skoolies.