#Class a fire extinguisher used for how to
#Class a fire extinguisher used for portable

Class K fires (cooking) ignite in kitchens using hot grease and oil to cook food.Įach class of fire has a corresponding type of fire extinguisher designed to put it out.

These fires are limited to laboratories with these dangerous substances on hand.

Class D fires (metal) involve combustible metals, such as magnesium, sodium or potassium.

Class C fires (electrical equipment) happen when faulty wiring, overloaded circuits, malfunctioning computers or other electrical equipment start a fire.

Class B fires (flammable liquids) occur when oil, gasoline, grease, paint and solvents ignite.

Class A fires (ordinary combustibles) involve the burning of paper, cloth, plastic, wood and other ordinary materials.

This includes cooling the fuel source, separating the oxygen from the fuel, or stopping the chemical reaction altogether.

#Class a fire extinguisher used for portable

Portable fire extinguishers are designed to displace one of these requirements. In order to burn, a fire requires three things: oxygen, heat and a fuel source. How Fire Extinguishers Workįire is a fierce chemical reaction that results in light, heat, flames and smoke.

#Class a fire extinguisher used for how to

Learn more about different classes of fires and how to choose the right fire extinguisher. Just as important as quick action, it is also important to use the right type of extinguisher. Quick action on your part could prevent the fire from spreading and causing serious damage. A fire extinguisher is your first line of defense in putting out a small blaze. Now unless you are an expert in this area of fire safety, most would need instruction on properly selecting the product that will protect your home. An extinguisher that is rated for use with multiple hazards should include a symbol for each hazard type.When it is time to protect your loved ones from the fear of fire, many people may decide to purchase a fire extinguisher. An extinguisher with an ABC rating is suitable for use with fires involving ordinary combustibles, flammable liquids and energized electrical equipment. For example, an extinguisher with a BC rating is suitable for use with fires involving flammable liquids and energized electrical equipment. Most portable extinguishers are rated for use with more than one classification of fire. An example would be a commercial kitchen similar to those found in restaurants and cafeterias. Note: Extinguishers with a K rating are normally required where deep-fryers and/or griddles are utilized to prepare large quantities of food. Extinguishers with a K rating are designed to extinguish fires involving vegetable oils, animal oils, or fats utilized in commercial cooking appliances. Class KĬlass K fires involve vegetable oils, animal oils, or fats in cooking appliances. If you store or use combustible metals, contact the Fire Prevention Services office for a consultation regarding the proper type and amount of extinguishing agent you should have available. The most common method for extinguishing a combustible metal fire is to cover the burning material with a dry powder, such as sand, which will not react with the material. Note: Common extinguishing agents may react with a combustible metal fire causing the severity of the fire to increase. Extinguishers with a D rating are designed to extinguish fires involving combustible metals. Class DĬlass D fires involve combustible metals, such as magnesium, titanium, and sodium. Extinguishers with a C rating are designed for use with fires involving energized electrical equipment. Class CĬlass C fires involve energized electrical equipment. Extinguishing a flammable gas fire, without shutting off the fuel, will allow unburned gas to escape into the atmosphere, which may permit a dangerous accumulation of gas to develop, and an explosion may occur if the gas is exposed to an ignition source.

In fact, if the only fuel burning is the leaking gas, the best method for extinguishing the fire is to shut off the fuel supply. Note: Do not attempt to extinguish a fire involving flammable gas unless there is reasonable assurance the source of fuel can be promptly shut off. Therefore, extinguishers with a B rating are designed to extinguish fires involving flammable and combustible liquids. Class BĬlass B fires involve flammable and combustible liquids such as gasoline, alcohol, oil-based paints, lacquers. Extinguishers with an A rating are designed to extinguish fires involving these ordinary combustible materials. There are five basic classifications of fuel and extinguishers, and extinguishers are labeled with either letter-shaped or pictorial symbols that indicate what types of fires they are intended for.Ĭlassifications of Fires and Extinguishers Class AĬlass A fires involve ordinary combustible materials, such as cloth, wood, paper, rubber, and many plastics. Portable fire extinguishers are classified by the type of fires they are designed to extinguish.