Here is my adapter kit. Each extension cord is 20' of SOOW (6-6-6) and weighs 13 lbs. I keep one end bare so that I'm able to connect to a circuit breaker, although I carry a spare NEMA 14-50P that I can quickly connect to make another 20' extension cord to gain my 40' of extension cord. With the 20' mobile UMC I'm able to reach almost 60'. I built these adapters myself but it would not have been possible without the fine guide provided by
@Cosmacelf.
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I'll insert two anecdotes here. First, while waiting for delivery of my MS, I completed all of the cables I felt I would need. When delivery was delayed and I was bored, I decided to make a TT-30 adapter just for the fun of it because, of course, I would never need it. Turns out, it was the first adapter I used -- in a very old campground along the California coast.
Second, I bought the Quick 220, just in case, and I ended up using it more than any other adapter.
You may also notice that I built an adapter for a NEMA SS2-50P marine plug (
Furrion 50 Amp 125 / 250 Volt Locking Male Plug). I found that marina's are an excellent source of 50a/250v power and I often made use of their facilities.
As for electrical panels, I learned from folks in the wilds of northern Minnesota, northern Wisconsin, and the UP of Michigan who tap directly into electrical panels since many older homes, B&B's, fish camps, etc. have their electrical panel outdoors near the garage. Let me caution that this is a
dangerous practice and many posters here will lambaste me for exposing this practice. You have been warned.