If you have any questions about fire extinguishers or need training in the correct way to use one, call Fire Control Systems today. The low minimum operating temperature of a powder fire extinguisher makes it suitable for all-year-round external situations. Class B fires involve flammable and combustible liquids such as fuels, paints. A dry powder fire extinguisher is often called an ABC unit because it can tackle Class A, B and C fires. Use a Class A or Class ABC fire extinguisher on this type of fire. An extinguisher that is rated for use with multiple hazards should include a symbol for each hazard type. Dry powder is a multi-purpose extinguishing medium with excellent knock-down properties.
Sweep the nozzle from side to side until the fire is put out.Īn extinguisher with an ABC rating is suitable for use with fires involving ordinary combustibles, flammable liquids, and energized electrical equipment.Squeeze the trigger slowly and evenly to release the agent.Hitting the tops of the flame with the extinguisher will not put the fire out effectively. Aim the nozzle at the base of the fire.
CLASS OF FIRES ABCD HOW TO
It is important to know how to use a fire extinguisher correctly. They work by smothering the fire: when you put a layer of powder or foam on the fire, you cut the fuel off from the oxygen around it, and the fire goes out. The letters stand for the class of fire the extinguisher can be used against:Ĭlass A – extinguish fires involving paper, wood, textiles, cloth, rubber, trash, and plastics.Ĭlass B – extinguish fires involving flammable liquids, solvents, oil, gasoline, paints, lacquers, and other oil-based products.Ĭlass C – extinguish fires involving energized electrical equipment such as wiring, controls, motors, machinery, and appliances.ĭry chemical extinguishers contain foam or dry powder with compressed nitrogen as the propellant. ABC fire extinguishers are considered “tri-class” or “multi-purpose” extinguishers which can be used on Class A, B, or C fires.Įvery fire extinguisher has an alphabet rating that tells you what types of fires it can extinguish. It is a pale-yellow powder that is used to extinguish three classes of fire. They use a dry chemical known as monoammonium phosphate that can quickly put out the fire. ABC fire extinguishers are often the ideal choice because they can put out many different types of fires.
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