One of the problems of the implementation of the underwater arc plasma is bound to the fact that this process runs at 120-200 V arc voltage and has an open circuit voltage of 250-400 V what exceeds very widely the 30 volts recommended by most regulations which means that electrocution risks are higher than with other electrical cutting methods.
I THEREFORE STRONGLY RECOMMANDED EVERYONE TO NEVER USE A CONVENTIONAL PLASMA CUTTING TORCH UNDER WATER. THE TORCHES THAT ARE ACTUALLY PROPOSED ON THE MARKET FOR UNDERWATER USE HAVE BEEN MODIFIED AND ADAPTED TO AVOID THAT RISK AND SO ONLY USE ONE OF THEM IF YOU WANT TRY THIS CUTTING PROCESS.

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