After a
battery charger had meltdown I carry one of those economical little outlet testers and check the campsite source before I plug in. I have found the camps wiring wrong on a couple of ocasions.
"Oh it's OK just go ahead and plug your trailer in.
Then You'll pay for any damage done to my trailer, Right?"
.
Now that you bring it to my attention, it would be a good idea to replace at least the original household type outlet on the outside where we connect a coffee maker or electric frypan with a GFI. BUT then I'm sitting on rubber
tires, isolated from a true ground except for the camp ground. Mabee a surge protector would be better. I think I need an electrician.