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Fire Alarm
 
Fire Extinguishers
 
 
 
Water Extinguisher (Class A Fires)
 
Water Extinguishers are most commonly used for class A fires and is quite effective as one would imagine. Water has a great effect on cooling the fuel surfaces and thereby reducing the paralyses rate of the fuel.
 
 
Foam Extinguisher (Class A And B Fires)
 
These are mainly water based, with a foaming agent so that the foam can float on top of the burning liquid and break the interaction between the flames and the fuel surface.
 
 
Dry Chemical Extinguisher (For Type E And C Fires)
 
BC powder is either sodium bicarbonate or potassium bicarbonate , finely powdered and propelled by carbon dioxide or nitrogen. Similarly to almost all extinguishing agents the powders acts as a thermal ballast making the flames too cool for the chemical reactions to continue.
 
 
Wet Chemical Extinguisher (For Class F and A Fire)
 
Gold in color, it has a liquid alkaline extinguishing agent, and is specifically designed for use in kitchens on deep fryer fires involving fat and cooking oil. This extinguishers must never be used on fires involving live electrical equipment.
 
 
C02 Extinguisher (Class B, & C, E)
 
CO2 (Carbon Dioxide) Fire Extinguishers are suitable for class B risks involving flammable liquids and for electrical hazards.
 
 
Classes Of Fires :
 
The Pictograph are found on the fire extinguisher Indicating the Class of Fire
 
Type
Description
Pictograph
Class A

Ordinary Combustible Solids
Wood, paper, cloth, plastics, rubber, coal, carbon based compounds etc..

Class B
Flammable & Combustible Liquids
Petrol, oil, paint, thinners, kerosene, alcohol, etc
Class C
Flammable Gases
L.P.G., Butane, Acetylene, Hydrogen, natural gas and Methane etc
Class D
Combustible Metals
Magnesium, aluminium, sodium or potassium etc…
Class E
Electrical Fires
Computers, switchboards, power-boards, etc..
Class F
Cooking Oils and Fats
Cooking oils and fats usually found in industrial kitchens etc.