Electricity can be used safely underwater by divers provided they are protected from electrical shock hazards. Electrical power is used underwater by divers for lighting, remotely-operated vehicles (ROVs), video equipment, inspection equipment, communication equipment, and other electrical devices. Diver electrical shock hazards occur from:
1. Carelessness or comlacency
2. Ground faults in the power system
Diver electrical safety can be achieved by common sense, education, preventive maintenance, properly designed underwater electrical equipment, and by the use of ground fault detection and interruption (GFI) devices designed specifically for underwater electrical power systems. An underwater electric field detector (UEFD) is available to warn the divers of stray electric fields originating from underwater electrical equipment.
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