Other tools used by fire fighters

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15 May 2024
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Fire extinguishers are important devices used to extinguish or control fire in the early stages of a fire. Its main function is to reduce or stop the spread of fire before it gets out of control, allowing time for evacuation and preventing further damage to property and the risk of injury or death to people.
Different types of fire extinguishers have different functions based on the type of fire being handled. For example, water-based fire extinguishers are very effective for class A fires involving combustible materials such as wood, paper, and textiles. This tool works by cooling the burning material and removing heat from the fire, so that the fire can be extinguished.
For class B fires involving flammable liquids such as gasoline, alcohol, or oil, foam or dry chemical powder-based fire extinguishers are more suitable. Foam works by covering the surface of the burning liquid, separating the fuel from oxygen and stopping the combustion process. Meanwhile, the dry chemical powder interrupts the chemical reactions in the fire, stopping the burning quickly.
Class C fires involving electrical equipment require CO2 (carbon dioxide) or dry chemical powder-based fire extinguishers. CO2 works by displacing oxygen around the fire and cooling the surrounding area, while dry chemical powder interrupts the chemical reaction of the fire without causing damage to electrical devices.
Metal fire extinguishers (class D) are used for fires involving flammable metals such as magnesium and titanium. This extinguisher contains a special powder that can absorb heat and prevent oxygen from reaching the burning metal.
Apart from that, there is a class K fire extinguisher which is specifically used for kitchen fires involving cooking oil and fat. These tools usually use a wet chemical that reacts with oil to form a soapy layer that cools and extinguishes the fire.
It is important to choose the type of fire extinguisher that suits the fire risk that may occur in a particular location. Additionally, regular maintenance and inspection of fire extinguishers is essential to ensure they function properly when needed. This includes checking pressure, cleanliness, and replacing the extinguishing agent if necessary.
Overall, fire extinguishers are a crucial part of the security system in various places such as homes, offices, factories and vehicles. Proper use and knowledge of how each type of fire extinguisher works can save lives and prevent greater damage from fire.
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