FirePro-Gen

CONTROLLING FIRE: 

CONTROLLING FIRE

Fire Control: 

Fire Control Fire control is the practice of reducing the heat output of a fire, or reducing the area over which the fire exists, or suppressing or extinguishing the fire by depriving a fire of fuel , oxygen or heat (see fire triangle ). .

Fire Tetrahedron: 

Fire Tetrahedron Basic components of a fire are: fuel source of ignition oxygen process of combustion Commonly referred to as the "fire tetrahedron"

PowerPoint Presentation: 

Class-A fires fire The most common method to control a class-A is to remove heat by spraying the burning solid fuels with water . Another method of controlling a class-A fire would be to reduce the oxygen content of the atmosphere in the immediate vicinity of the (i.e., "smother" the fire), such as by the introduction of an inert gas such as carbon dioxide .

PowerPoint Presentation: 

Class-B fires Some Class-B fires (hydrocarbons, petroleums , and fuels on fire) cannot be efficiently controlled with water. Fuels with a specific gravity less than water, such as gasoline or oil , float on water, resulting in the fire continuing in the fuel on top of the water. Some class-B fires can be controlled with the application of chemical fire suppressants.

PowerPoint Presentation: 

Class-C fires Class-C fires involve electricity as a continuous power source for the ignition of the fuels associated with electrical equipment, such as plastic cable jackets. The application of water does not always result in effective fire control, and there is a general concern regarding conductivity and personnel safety.

PowerPoint Presentation: 

Class C fires can be effectively controlled by removing the oxygen. The removal of electricity as a continuous ignition source is important to eliminate re-ignition. Once the electricity is removed, the result is a Class A fire

PowerPoint Presentation: 

Class A Fires: Ordinary combustibles such as wood and paper. Class B Fires: Flammable and combustible liquids and gases. Class C Fires: Energized electrical equipment. Class D Fires: Combustible metals. Class K Fires: Cooking Oils and Fats.

Extinguisher Classification: 

Extinguisher Classification Class A – ordinary combustibles (wood, cloth, paper) Class B – flammable liquids, gases, greases Class C – energized electrical equipment Class D – combustible metals Letter classification given an extinguisher to designate the class or classes of fire on which it will be effective. A B C D Ordinary Combustibles Combustible Metals Flammable Liquids Electrical Equipment