Types of Fire Extinguishers. Three ways to extinguish a fire Starvation - Removal of fuel Smothering...
-
Upload
ada-skinner -
Category
Documents
-
view
323 -
download
4
Transcript of Types of Fire Extinguishers. Three ways to extinguish a fire Starvation - Removal of fuel Smothering...
Types of Fire Extinguishers
Three ways to extinguish a fire
• Starvation - Removal of fuel
• Smothering - Removal of oxygen
• Cooling - Removal of heat
• Remove any one of the three
components and fire cannot start or be
sustained
Fire classification
• Class A: SOLIDS such as paper, wood, plastic etc• Class B: FLAMMABLE LIQUIDS such as paraffin,
petrol, oil etc• Class C: FLAMMABLE GASES such as propane,
butane, methane etc• Class D:METALS such as aluminium, magnesium,
titanium etc• Class F:Cooking OIL & FAT etc
Types of Fire Extinguishers
Water • 6 or9 litre size• Suitable for Class A Fires• Not for use on flammable
liquids• Not to be used near to
live electrical apparatus• Discharge time,
approximately 60 seconds• Weighs approximately 15
kilos
Types of Fire Extinguishers
Foam• Multi-Purpose Foam
Spray• 9 litres, 6 litres or 2 litres• Ideal for burning solids
and hydrocarbon liquids• Can be rated for use on
live electrical equipment
Types of Fire ExtinguishersDry Powder • 1kg, 2kg, 3kg, 6kg, and 9kg capacities• ABC powder for burning solids, burning
liquids and if specially trained, burning gases
• Could be harmful in a confined space, and will contaminate prepared foods, and delicate electronic equipment
• Little cooling effect
Types of Fire Extinguishers
SPECIAL FIRE EXTINGUISHERS
• ‘FryFighter’• For Class F Fires
(overheated cooking oils/ fats)
• ‘Unique’ Wet Chemical’ formulation to suponificate the burning fat
Types of Fire Extinguishers
Carbon Dioxide (CO2)
• Clean non conductive agent• Ideal for fires involving live
electrical apparatus• Noisy in operation• Some parts of the
extinguisher will become very cold
• Little to no cooling effect
Other Fire Fighting Equipment
• Hose - Reels
• Fire Blankets
Remember!Extinguishers are only for dealing with
small fires.
DO NOT CONTINUE TO FIGHT A FIRE IF:
• it is dangerous to do so,
• there is a possibility that your escape route may be cut off by the fire or smoke,
• the fire continues to grow in spite of your efforts,
• there are gas cylinders threatened by a fire.
• If you have to withdraw, close windows and doors behind you whenever possible.
• Do NOT use a fire extinguisher to put out a fire involving burning gas. Turn off the gas supply if it is safe to do so, or leave such fires to the fire brigade.
Speedy intervention using a portable fire extinguisher could prevent total devastation such as: