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Fire Hazards
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King`s Cross Underground station fire
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Fire Safety Requirements
OSH Act makes fire provisions under Part V: Certification by fire authority Evacuation drills Emergency exits clearly marked Audible warning alarms Fire equipment provided, maintained readily available
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Basic principles of fire
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Sources of ignition
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Sources of fuel Solids – these include, wood, paper, cardboard, wrapping materials, plastics, rubber, foam, textiles, waste materials, hair.
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Sources of fuel Liquids – these include, paint, varnish, thinners, adhesives, petrol, paraffin, acetone
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Sources of fuel Gases – flammable gases include LPG, acetylene and hydrogen.
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Oxygen Oxygen provides by air and is enhanced by natural or powered ventilation systems.
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Method of extinction
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Classification of fires
Comparison of fire classes American European/Australian/ Asian Fuel/Heat source Class A Ordinary combustibles Class B Flammable liquids Class C Flammable gases Class E Electrical equipment Class D Combustible metals Class K Class F Cooking oil or fat
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Classification of fires
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Principles of heat transmission and fire spread
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Principles of heat transmission and fire spread
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Fire protection
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! Fire Protection
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