Had the same thing happen 2.5 times myself but it was the Campground's breaker, not mine
1: Park the 30 amp breaker, NOT the standard Square D (Different make) when the maintenance man opened the box. ... Scary I can tell you.
Another park (Standard Square D type breakers) the 50's were tripping at around 20.. THey were so hot that the Electrician got gloves to pull 'em and even after he got it all back together they were still too hot for me to handle comfortably.
The half.. I was told the site had bad power.. Pressed on the breaker and re-seated it. had good power for 2 weeks I was there.
