Classification of Electrical Fires

Classification of Electrical Fires Points : classification of electrical fires, class of electrical fires, types of electrical fires

CLASSIFICATION OF FIRES
	Fire Class	Combustion Material Involved	Fire Extinguishing Medium
1.	Class A Fire	Fires involving Ordinary Solid Materials such as Wood, Coal, Plastics, Cloth, paper, Rags, Rubbish, Construction and Packing materials, Rubber, etc.	Water or Solution with high water content cooling and wetting of material helps in quenching the fire.
2.	Class B Fire	Fires involving Flammable Iiquids/Vapours/Solventss: Transformer oil, Diesel oil, Solvents, Liquid chemicals Lubricating oils, Paints/Varnishes/thinners Greases, Contained Uncontained.	Limiting air or oxygen supply, inhibiting fire Dry chemicals, Foam, Halon. Water is not suitable.
3.	Class C Fire	Fires involving live Electrical Equipment, in Energized state. If equipment is dead Class is A or B.	CO2 gas, Dry chemicals. Water is not suitable.
4.	Class D Fire	Fires involving Metals like magnesium, titanium.	Normal extinguishing media not suitable. Special chemicals and techniques ale used.
5.	Class E Fire	Fires involving Flammable Gases and Fuels Hydrogen, Ammonia, Acetylene, LPG, Petrol, Furnace Oil.	Starvation of fire is most useful. Special methods necessary inlet value closed.