Fire Hazards

King`s Cross Underground station fire

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

Basic principles of fire

Sources of ignition

Sources of fuel Solids – these include, wood, paper, cardboard, wrapping materials, plastics, rubber, foam, textiles, waste materials, hair.

Sources of fuel Liquids – these include, paint, varnish, thinners, adhesives, petrol, paraffin, acetone

Sources of fuel Gases – flammable gases include LPG, acetylene and hydrogen.

Oxygen Oxygen provides by air and is enhanced by natural or powered ventilation systems.

Method of extinction

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

Classification of fires

Principles of heat transmission and fire spread

Principles of heat transmission and fire spread

Fire protection

!   Fire Protection