Dry powder and sand. When rotating electrical machines such as generators and motors catch fire, fire extinguishers can be used, water spray and dry powder and sand cannot be used. A generator is a rotating machine that produces electricity when acted upon by mechanical power. Among them, the generator that generates direct current by mechanical power is a direct current generator, and the generator that generates alternating current is an alternator.
Dry chemical fire extinguishers and carbon dioxide fire extinguishers. Fire extinguishing equipment that can be used in the event of an electrical fire includes dry powder extinguishers and carbon dioxide extinguishers. For electrical equipment that may be energized, as well as generators, motors, etc., dry, carbon dioxide, or 1211 extinguishers should be used to extinguish fires.dies. For oil-filled equipment, dry extinguishers, 1211 extinguishers, etc. can be used. If the fire cannot be extinguished, use foam extinguishers. If necessary, dry sand can be used to extinguish the fire. If the insulating oil on the ground catches fire, dry sand should be used to extinguish the fire. If fighting a fire that may produce toxic gases, such as a cable fire, firefighters should use positive pressure firefighting air breathing apparatus.