Fire - A Review
Four Elements (Oxygen, Heat, Fuel and Chemical Reaction) are required for Fire
to exist. The presence of oxygen sustains combustion, Heat raises the material’s
ignition temperature, fuel supports the combustion and finally a chemical
reaction between the other three elements results in Fire.
In order to prevent fire the elements need to be separated.
A fire extinguisher is an active fire protection device used to extinguish or
control small fires, often in emergency situations. Typically, a fire
extinguisher consists of a handheld cylindrical pressure vessel containing an
agent which can be discharged to extinguish a fire.
Types of Fire
Class A : These type of Fires are caused by ordinary combustibles such as Wood,
Cloth, Paper and Plastic.
Class B : These type of Fires are caused by flammable liquids such as Petrol,
Oil, paint and Chemicals.
Class C : These type of Fires are caused by LPG, Acetylene and other Industrial
Class D : These type of Fires are caused by combustible/reactive metals such as
sodium, Potassium, Aluminum and Magnesium.
Class E : These type of Fires are caused by live electrical equipment such as
motors, transformers and appliances.
Rules for Fighting Fires
1. Activate : Activate the alarm system and notify the fire department or have
someone else do this for you.
2. Assist : Assist any person/s in immediate danger, or those incapable on their
own, to exit the building, without risking yourself.
3. Attempt : Only after the first two are completed, should you attempt to
extinguish the fire.