The document provides an overview of fire safety training, including the definition of fire, its components, and classification into different classes based on fuel types. It emphasizes the importance of using the correct type of fire extinguisher for each class and explains the '3 A's' (Activate, Assist, Attempt) to follow in case of a fire. Additionally, it describes various types of fire extinguishers and their appropriate usage with the acronym P.A.S.S. (Pull, Aim, Squeeze, Sweep).

1. Fire Safety Training
By:
Ahmed Moftah

2. Training Overview
What is Fire?
Classes of Fire
3 A’s
Types of Fire Extinguishers
Use of a Fire Extinguisher
Summary

3. What is Fire?
Fire is a self-sustaining, chemical chain reaction with
varying degrees of light and heat.
Fire is made up of four components
• Fuel
• Oxygen
• Heat
• Chemical Chain Reaction

4. Fire Tetrahedron
By removing one of these
four components the fire
will go out.
Fire extinguishers are
designed to do just that.

5. Classes Of Fire
Fires are classified according to the type of fuel
that is burning.
If you use the wrong type of fire extinguisher on the
wrong class of fire, you might make matters worse.
Its very important to understand the four different
fire (fuel) classifications…

6. Classes Of Fire(cont.)
Class A: Wood, paper, cloth, trash, plastics—solids
that are not metals.
Class B: Flammable liquids—gasoline, oil, grease,
acetone. Includes flammable gases.
Class C: Electrical—energized electrical
equipment. As long as it’s “plugged in.”
Class D: Metals—potassium, sodium, aluminum,
magnesium. Requires special extinguishing agents.
Class K: Cooking Oils.

7. If You Discover a Fire Follow The 3 A’s
Activate
Assist
Attempt

8. The 3 A’s (cont.)
Activate
 Activate the buildings fire alarm system or call 911 to notify
emergency services.

9. The 3 A’s (cont.)
Assist
 Assist those who are in immediate danger or who are
incapacitated. Do this without risk to yourself!

10. The 3 A’s (cont.)
Attempt
Before going on with this step make sure of the
following:
The Fire isn’t too large to control.
Having the right type & size of extinguisher.
Always have an exit to your back in case you need to
escape.
 Never attempt to fight a fire if there is a heavy smoke
condition.

11. Types of Fire Extinguishers
Different types of fire extinguishers are designed to
fight different classes of fire; here are some of the
commonly used extinguishers:
• Dry Chemical
• Carbon Dioxide
• Foam
• Dry Powder
• Wet Chemical

12. Types of Fire Extinguishers (cont.)
Dry Chemical
• Dry Chemical is the most widely used type
of fire extinguisher and is also recognized as a
multi-purpose ABC fire extinguisher.
• They contain an extinguishing agent and use a
compressed, non-flammable gas as a propellant.
• The agent works by interrupting the chemical
chain reaction. Also, on a class A fire it creates a
barrier between the fuel and the oxygen.

13. Carbon Dioxide
• Works by separating oxygen and heat.
• Most effective on Class B and C (liquids and
electrical) fires.
• Since the gas disperses quickly, these
extinguishers are only effective from 3 to 8 feet.
• Since the fire could re-ignite, continue to apply
the agent even after the fire appears to be out.
Types of Fire Extinguishers (cont.)

14. Types of Fire Extinguishers (cont.)
Foam
• Foam fire extinguishers work by covering a
burning flammable liquid with a blanket of foam,
cutting off the fire’s air supply and preventing the
release of flammable vapors.
• Suitable for Class A & B fires.

15. Types of Fire Extinguishers (cont.)
Dry Powder
• Works by separating fuel from oxygen and/or
removing heat
• Effectiveness is based on the type of class D fire it
is designed to extinguish.
• Ineffective on class A,B,C fires (metal fires) only.

16. Types of Fire Extinguishers (cont.)
Wet Chemical
• Designed for restaurant type kitchens.
• Works by forming a soapy foam blanket over the
burning material and cooling it below it’s ignition
temperature.

17. Types of Fire Extinguishers (cont.)

18. Use of A Fire Extinguisher
Use the acronym PASS to remember how to use a fire
extinguisher.
• P – Pull
• A – Aim
• S – Squeeze
• S – Sweep

19. Use of A Fire Extinguisher (cont.)
S – Sweep
S – Squeeze
A – Aim
P – Pull

20. Summary
Remember the following
• Actions to take when a fire is discovered….The Three A’s
(Activate, Assist, Attempt)
• When & what extinguisher to use?
• How to use a fire extinguisher…. P.A.S.S. (Pull, Aim,
Squeeze, Sweep)