Fire Extinguishers [1] diuewb wie ewj hwe kew wefjefkewbfnewf we fiewbfewb f.ppt

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1. Fire Extinguishers
EMERGENCY RESPONSE
Fire Extinguishers

2. Fire Extinguishers
Sheet 1 – Pick the correct extinguisher
3 4
21

3. Fire Extinguishers
wood
paper
textiles
ORDINARY COMBUSTIBLES
CLASS A
FLAMMABLE LIQUIDS
CLASS C
FLAMMABLE GASES
CLASS B
oil
petrol
kerosene
acetylene
LPG
Sheet 2 – Classes of fire (A, B and C)

4. Fire Extinguishers
magnesium
titanium
sodium
CLASS (E)
FIRES INVOLVING LIVE ELECTRICITY
CLASS D
COMBUSTIBLE METALS
CLASS F
COOKING OIL FIRES
Sheet 3 – Classes of fire (D, E and F)

5. Fire Extinguishers
CLASS A ORDINARY COMBUSTIBLES YES
CLASS B FLAMMABLE LIQUIDS NO
CLASS C FLAMMABLE GASES NO
CLASS (E) LIVE ELECTRICITY NO
CLASS F COOKING OILS NO
These have an all red cylinder.
Water extinguishes the fire by cooling
and removing the heat from a fire.
Without adequate heat, fuel cannot burn.
Electrically conductive.
Sheet 4 – Water fire extinguishers

6. Fire Extinguishers
These have an all blue cylinder.
They have 93% water and a chemical foaming
agent. Foam extinguishes the fire by
smothering and cooling the fuel.
Without heat and oxygen a fire cannot burn.
It is electrically conductive.
CLASS A ORDINARY COMBUSTIBLES YES
CLASS B FLAMMABLE LIQUIDS YES
CLASS C FLAMMABLE GASES NO
CLASS (E) LIVE ELECTRICITY NO
CLASS F COOKING OILS NO
Sheet 5 – Foam extinguishers

7. Fire Extinguishers
These have a red cylinder with a white
horizontal band.
Dry Chemical Powder extinguishes the fire by
breaking the chain reaction between the fuel
vapours and the oxygen.
It also smothers the fuel.
It is not a good coolant.
It is electrically non-conductive.
CLASS A ORDINARY COMBUSTIBLES YES
CLASS B FLAMMABLE LIQUIDS YES
CLASS C FLAMMABLE GASES YES
CLASS (E) LIVE ELECTRICITY YES
CLASS F COOKING OILS YES
Sheet 6 – Dry chemical powder extinguishers

8. Fire Extinguishers
CLASS A ORDINARY COMBUSTIBLES
CLASS B FLAMMABLE LIQUIDS
CLASS C FLAMMABLE GASES
CLASS (E) LIVE ELECTRICITY
CLASS F COOKING OILS
These have a red cylinder with a black
horizontal band.
Carbon Dioxide gas extinguishes by
smothering the fire and cooling the
burning fuel.
It is very effective on fires involving live
electricity because the gas is
non-conductive and non-corrosive.
YES
YES
YES
YES
NO
Sheet 7 – Carbon dioxide gas fire extinguishers

9. Fire Extinguishers
These are identified by the all beige cylinder.
They contain 90% water and 10% emulsifying
chemical.
It extinguishes the fire by sealing off the
surface of the cooking oil with a chemical
blanket (smother) but also acts as a coolant.
It is electrically conductive.
CLASS A ORDINARY COMBUSTIBLES YES
CLASS B FLAMMABLE LIQUIDS NO
CLASS C FLAMMABLE GASES NO
CLASS (E) LIVE ELECTRICITY NO
CLASS F COOKING OILS YES
Sheet 8 – Wet chemical fire extinguishers

10. Fire Extinguishers
Director nozzle is not
blocked
Pressure gauge needle
is pointing to the
“fully charged”
position
Locking pin is
positioned through the
trigger and handle
Plastic tamper tag is
tied off around the
pin and trigger
Cylinder is not split
or corroded
Trigger is not bent
Hose is not split
or punctured
Sheet 9 – Checking fire extinguishers

11. Fire Extinguishers
Select the correct extinguisher for the
type of fire.
Test your extinguisher before moving
into the immediate area of the fire.
Look for a “line of retreat” in case you
are unable to contain the fire.
Stand up-wind of the fire to avoid
smoke and fumes.
Stand up-hill of the fire to avoid any
dangerous run off from flammable
liquid fires.
Adopt a crouching position to keep
clear of smoke and heat.
Sheet 10 – Extinguishing the fire

12. Fire Extinguishers
1 2 3 4 5
Which extinguisher would you pick for a Class B flammable
liquid fire if there was live electrical equipment near the fire?
Sheet 11 – Pick the correct extinguisher