Right after we bought our RV, before we had our 50A outlet installed, I had a 100ft 14 gauge extension cord to 20A 110v to 30A to 50A adapters to the RV. Just to test things out. And we turned things on and off one by one. Until we were done testing each AC unit. We left the rear one on to keep it cool while we explored our new toy.
I went to the house. DW came running in 30 min later and said the extension cord was smoking!!!!
She unplugged it.
I had NOT unrolled the entire length of the cord from the spool. Remember it was 14 gauge. It got real hot!!! It melted down. Very lucky no other damage.
Moral of the story, use at least 12 gauge, unrolled the entire length of cord and lay it flat on the ground, dont over load it
