Fried A/C, 2 TV's and micro wave-my fault or electricians.

OP asked the electrician "to install a 30 amp outlet" (in later post said "for my motorhome") and "said nothing about voltage", and OP "supplied the adapter to him". I'm guessing the 30 / 50 amp adapter.

Were I the electrician, I think it would have been important for me to start asking questions at this point! But we are only getting one side of the story.

I'd like to see a pic of the outlet too! I take it that the electrician supplied the outlet.