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Dec 19, 2023
There are several classes of fire extinguishers, each designed to combat different types of fires. The classes of fire extinguishers are categorized based on the type of fuel involved in the fire. The most common classes of fire extinguishers are:
1. Class A: These extinguishers are suitable for fires involving ordinary combustible materials such as wood, paper, cloth, rubber, and plastics. They work by cooling the fire and reducing the heat.
2. Class B: These extinguishers are used for fires involving flammable liquids like gasoline, oil, grease, and solvents. They work by smothering the fire and preventing the oxygen supply.
3. Class C: These extinguishers are designed for fires involving energized electrical equipment such as appliances, wiring, circuit breakers, and outlets. They are non-conductive and work by interrupting the electrical current.
4. Class D: These extinguishers are specifically designed for fires involving combustible metals like magnesium, titanium, potassium, and sodium. They work by smothering the fire and preventing the metal from reacting with oxygen.
5. Class K: These extinguishers are used for fires involving cooking oils, fats, and greases typically found in commercial kitchens. They work by saponifying the burning oils and creating a foam-like layer to extinguish the fire.
It is important to note that some fire extinguishers are multi-purpose and can be used for multiple classes of fires. However, it is crucial to select the appropriate extinguisher based on the specific type of fire to ensure effective suppression and safety.
1. Class A: These extinguishers are suitable for fires involving ordinary combustible materials such as wood, paper, cloth, rubber, and plastics. They work by cooling the fire and reducing the heat.
2. Class B: These extinguishers are used for fires involving flammable liquids like gasoline, oil, grease, and solvents. They work by smothering the fire and preventing the oxygen supply.
3. Class C: These extinguishers are designed for fires involving energized electrical equipment such as appliances, wiring, circuit breakers, and outlets. They are non-conductive and work by interrupting the electrical current.
4. Class D: These extinguishers are specifically designed for fires involving combustible metals like magnesium, titanium, potassium, and sodium. They work by smothering the fire and preventing the metal from reacting with oxygen.
5. Class K: These extinguishers are used for fires involving cooking oils, fats, and greases typically found in commercial kitchens. They work by saponifying the burning oils and creating a foam-like layer to extinguish the fire.
It is important to note that some fire extinguishers are multi-purpose and can be used for multiple classes of fires. However, it is crucial to select the appropriate extinguisher based on the specific type of fire to ensure effective suppression and safety.
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