understand basic firefighting concepts: about fire r.a.c.e p.a.s.s know what to do if you find a...
TRANSCRIPT
Understand basic firefighting concepts:
About Fire R.A.C.E P.A.S.S Know what to do if you find a fire Be able to correctly and safely
select and use a fire extinguisher
Fire is the rapid combination of oxygen with fuel in the presence of heat, typically characterized by flame, a body of incandescent gas that contains and sustains the reaction and emits light and heat.
Ex:
The process of combustion of flammable materials producing heat and light and (often) smoke.
Three components Need all three components
(Heat, Fuel and Oxygen) to start a fire
Fire extinguishers remove one or more of the components
Three components Need all three components
(Heat, Fuel and Oxygen) to start a fire
Fire extinguishers remove one or more of the components
Ignition- This is First stage, when material starts to burn.
Smoke- This is second stages, when Visible by products are released.
Flame- This is third stage, glowing heated and gaseous stage of Fire.
Fire is First!
There is only little time. Fire is Hot!
Heat is more threatening than flames. Fire is Dark!
Fire isn’t bright, its pitch black Fire is Deadly!
Smoke and toxic gases kill more people than flames do.
ConductionThis type of heat transfer occurs
inside solid material. The heat from the fire will travel along the length of material.
Convection This type of heat transfer occurs only in liquids & gases. Here fire produces hot air and spread it to everywhere.
There are four types of Fire.
1) Class “A” - Ordinary Combustibles
2) Class “B” - Flammable Liquids
3) Class “C” - Electrical
4) Class “D” – Combustibles Metals
Class “D” combustible metal fires only.
30 lb pressurized dry powder optimized for specific combustible metal
Range 6-8 ft.
To activate, must first open nitrogen cylinder on back to pressurize body
EXTINGUISHER TYPE WORKERS BY EFFECTIVE
AGAINSTPRESSURIZED WATER COOLING Picture
CARBON DI OXIDE SMOTHERING Picture
MULTIPURPOSE DRY CHEMICAL
SMOTHERING Picture
COMBUSTIBLE METAL SMOTHERING Picture
Ensure area is evacuated
Always sound the alarm regardless of fire
size
Know location of Extinguishers in your area
and how to use them
Know department emergency procedures
and evacuation routes
To keep an exit to your back
When the fire extinguisher is empty- Get Out
When you leave the building, do not go back in.
Fire has spread beyond its point of
origin
Your escape Path is threatened
The area is smoke filled
Your instincts tell you get out
Aim At Aim At The Base Of The Fire
Aiming at the middle will do no good. The agent will pass through the flames.
Sweep side to side
Cover the entire area that is on fire.
Continue until fire is extinguished. Keep an eye on the area for re-
lighting.