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Fire & Water - Cleanup & Restoration

Choosing The Right Fire Hydrant

9/1/2020 (Permalink)

Fire Extinguisher Differences in fire extinguishers

Little did I know, that there are different types of fire extinguishers. There are several different fire extinguishers depending on what you are trying to put out.

Class A: These types of fire extinguishers are used in fires which are a result of the burning of wood, glass fiber, upholstery, and furnishing. Usually, Water, DCP and Foam fire extinguishers smother the Class A fire by removing the heating factor of the fire triangle. Foam agents also help in separating the oxygen part from the other aspects.

Class B: These fire extinguishers are used for fires which occur from fluids such as lubricating oils, fuels, paints, cooking oil etc. A portable CO2 fire extinguisher or a portable DCP extinguisher can be used in this class.

Class C: Fires resulting from involvement of energized electrical equipment such as motors, switches, wiring etc are extinguished by Class C type of fire extinguishers. Usually, a CO2 or DCP portable fire extinguisher is used in such fires.

Class D: Fires occurring as a result of combustible materials such as magnesium and aluminium are extinguished by this type of fire extinguisher. These elements burn at high temperatures and will react vigorously when coming in contact with water, air, carbon dioxide and/or other chemicals.

For extinguishing this class of fire, Dry Powder extinguishers are used which is similar to dry chemicals, besides, they extinguish the fire by isolating the oxygen from the fuel or by eliminating the heat factor of the fire triangle.

The dry powder extinguishers are only used for Class D fires and they cannot be used for other classification of fire on board the ship.

Class E: This type of fire extinguisher on a ship is used for subsiding fire resulting from any of the above-mentioned materials along with high voltage electricity. Hence, if a portable extinguisher with a conductive agent is used for fighting the Class E fire, it may lead to a risk of shock to the operator. CO2 or DCP portable fire extinguishers are used in such fires.

Knowing which one is for which is essential when the time comes that you may have a fire. If you experience fire damage you can give us a call at 757-479-4447!

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