Upload
edward-rose
View
213
Download
0
Tags:
Embed Size (px)
Citation preview
In Australia, fire is a significant hazard to people, property and the environment. A fire at home can mean more than just a few days off. You, could be badly injured or even killed.
Even if no one is injured, a serious fire can mean that you could lose your home and personal possessions.
» Approximately 100 fatalities per year from structure fires.
» Approximately 3000 injuries per year from structure fires.
» On average, 83 homes per year are lost to bushfire, costing the country millions of dollars, although this does vary yearly.
E.g. In 2003, the Canberra bushfires destroyed over 500 properties, killed 4 people and cost AUD$300 million
Which is the odd one out?
» Fire alarm systems» Smoke alarms» People» Fire and Rescue Service» Emergency Exits» Fire extinguishers
» Fire alarms, exits, wardens, FRS etc., are "re-active" forms of fire safety. They only work once a fire has started.
» People are the only potential "pro-active" form of fire safety. They can prevent a fire before it happens.
»With basic, fire awareness, we can stop fires from even starting
»Understand how fire behaves and safely use each type of common fire extinguisher
»Have the knowledge to prevent and/or safely react to a fire situation.
HEA
T
FUEL
CHEMICAL CHAIN REACTION
Seal compartments, rooms, buildings, etc.
Use of smothering agents:CO2
Fire blanket
Foam
Sand or Earth
SMOTHERING
Reduce or remove the supply of oxygen to the fire:
STARVING
Reduce or remove the source of fuel.
Gas Fires or Liquid Fuel Fires – Isolate valves
Bush Fires – Fire breaks, Back burning
» A CLASS˃ Combustible, Carbonaceous
Materials+ Wood, Paper, Textiles
C CLASS
Flammable Gasses
LPG, Acetylene, Natural Gas
B CLASS
Flammable Liquids
Petrol, Oil, Lubricants.
» D CLASS˃ Combustible Metals
+ Magnesium, Aluminium, Iron Filings+ Special portable extinguishers used
E CLASS
Electricity
Ensure extinguishing agent should be
NON CONDUCTIVE
F CLASS Hot Cooking Oil and Fats
FOAM
Most suitable for CLASS B fires Smothers, Cools Designed for most B class fires –
flammable liquids
CARBON DIOXIDE Extinguishes CLASS B, E and F fires Displaces oxygen Most suitable for electrical fires Limited effect on Class A fires
DRY CHEMICAL POWDER
Extinguishes CLASS B, F and E fires
Interferes with the chemical chain reaction, Smothers
WET CHEMICAL
Most suitable for CLASS F fires, also Class A
Smothers by turning hot fats or cooking oils into a
combustion resistant soap
Application of Extinguishing Medium
WATER – seat of fire
CARBON DIOXIDE (C02) – between fuel surface and flames
DRY CHEMICAL POWDER (DCP) – flame zone
FOAM – Surface of fuel
WET CHEMICAL – Surface of fuel
1.. Raise Alarm (“Fire Fire Fire”)
ask yourself:
Are there any hazards (trips etc)? Are there any people in the building? What is the class of fire? What is the exact location of fire? How big is the fire?Do you need to call FESA
Decide if you have appropriate equipment and you can safely extinguish the fire.
2. If safe attempt to extinguish fire
(ensure you have an escape route)
Ask yourself……
• Is the extinguisher suitable?
• Is the extinguisher big enough?
• What hazards are nearby?
3. Evacuate if you are unable to fight the fire successfully and safely.