3. EXTINGUISHING METHODS
• STARVING it of fuel
• SMOTHERING it – to cut off the supply of
oxygen
• COOLING it – to remove the heat
• INHIBITING the chemical chain reaction.
3
4. CLASS A FIRES
• Common solid fuels
• Extinguished by cooling
4
5. CLASS B FIRES
• Involve flammable and
combustible liquids
• Extinguished by
smothering or
inhibiting the reaction
5
6. CLASS C FIRES
• Involve flammable
gases.
• Extinguished by
starving of fuel
6
7. CLASS D FIRES
• Involve combustible
metals.
• Extinguished by special
smothering methods
7
8. ELECTRICAL FIRES
• Not an official class
• Not a fuel
• Extinguished by
smothering or
inhibiting reaction
• Medium need to be
non conducting.
• Extinguishers have (E)
8
9. CLASS F FIRES
• Involve combustible
fats and oils
• Often in deep fryers
• Special smothering or
chemical methods
9
19. RESPONSE PRECEDURES
• REMOVE PEOPLE from immediate danger.
• ALERT nearby staff and members of the
public.
• CONFINE FIRE and SMOKE close windows
and doors (if safe to do so).
• EXTINGUISH or control fire (if safe to do
so).
19
20. CONSIDERATIONS
• What sort of fire is this?
• Do I have the training and equipment to
safely handle it?
• What sort of hazards are involved?
• What precautions do I need to take?
• Is it worth the risks involved to fight the fire?
20
21. HOW TO EXTINGUISH
• P ull out the safety pin, test the extinguisher
• A im at the base of the fire.
• S queeze the operating handle.
• S weep the stream of firefighting agent back
and forth across the base of the fire
21
