A fire extinguisher cut off the supply of Air
or bring down the temperature of the fuel or both and controls the fire.
How do fire extinguishers work?
fire extinguishers apply an extinguishing agent that will either cool burning The
most common types of fire fuel, displace
or remove oxygen, or stop the extinguishers are, chemical reaction so fire cannot continue to Air pressurized water extinguishers, burn. When the candle of an extinguisher is compressed,
it opens and inner canister of high Carbon-di-oxide extinguishers. pressure
gases forces the extinguishing agent Dry chemical powder extinguishers. from
the main cylinder through a siphon tube and out the nozzle. A fire extinguisher
works much like a can of hair spray.
Types of fire extinguisher:
most common types of fire extinguishers are,
Air pressurized water extinguishers,
Dry chemical powder extinguishers.
The different types of extinguisher tackle different types of fire
extinguishers can be broadly classified into five types:
Water, 2.Foam, 3.Dry Powder, 4.CO2, 5.Wet Chemical.
classes of fire
are five classes of fire: Class A, Class B, Class C, Class D, and Class E.
Class A fires –
Combustible materials: caused by flammable solids, such as wood, paper,
Class B fires – Flammable
liquids: such as petrol, turpentine or paint
Class C fires –
Flammable gases: like hydrogen, butane or methane
Class D fires – Combustible
metals: chemicals such as magnesium, aluminum or potassium
Class E fires –
Typically a chip-pan fire
Electrical fires –
Electrical equipment: once the electrical item is removed, the fire changes