The result is a bigger and more dangerous fire. To fight these fires you must remove either the fuel from the fire or the source of air. Fire and chemicals which remove the air are used to fight these fires. A wet blanket or even dirt or sand can be used to control or extinguish a Class B fire. Class C Fires Fires caused by electricity are Class C fires.
Light switches, electric motors and other electrical equipment can ignite dust or flammable vapors.
Light bulbs, electric motors, toasters, electric stoves and other electrical appliances and equipment can cause fires if they are too hot and too close to material which will ignite. Electrical fires are prevented by using appliances and equipment properly and by keeping combustible materials away from these appliances and equipment. Electrical fires are extinguished by turning off the electrical power and smothering the fire with carbon dioxide or dry chemicals. Never use water. Water will conduct electricity and you could easily be electrocuted.