My Thai cousin had a one-man band and got a wedding gig on Beach Road Pattaya (long time ago). He had lots of huge speakers, spot lights, the whole impressive lot. Problem was it wouldn't run on the breaker in the breaker box. No problem, breaker removed.
Sometime thru the event I looked up and the power cables coming into the place from the road were smoking!
This was an outdoor event, imagine the same in that building.