Is it possible that (isolated) wires carrying high current, such as 200A, passing through water will heat up that water like a boiler?
I have been told by someone that a fuse panel in a building had its bottom immersed in water and apparently this created a lot of heat and steam. Does this make any sense?
I know that inductive heating COULD possibly occur, but we are speaking 50Hz and no coils but straight wires. Usually one would expect that with frequencies in the kHz range. Resistor-type heating would probably not have occured either since wires in a fuse panel would be highly conductive.