Electrical shock is a potential hazard aboard ship.
The combination of high humidity, metal structures, ship movement, high voltage electricity and salt water increases the potential for electric shock hazard. To help protect mariners from electric shock, MSC has established an Electrical Safety Program. Mobile electrical equipment may include fans, adding machines, typewriters, toasters, welding machines, bench grinders, vending machines, refrigerators and coffee makers. Double insulated tools refers to the existence of two separate insulating systems within a tool or device such that failure of one insulation would not result in hazardous voltages on any exposed metal components. To be considered non-conducting, the equipment must pass an initial inspection for rugged, safe construction and the tool has a minimum 1 megohm DC resistance from any phase conductor to any exposed metal part or metal chassis.