Fire hazards are conditions that can cause or spread fire, involving oxygen, fuel, and heat. The fire triangle illustrates that the three elements needed for fire are heat, fuel, and oxygen. There are different classes of fires involving solid, liquid, or gas fuels. Fire hazards can be caused by electrical failures, lightning, flammable mixtures, or hot surfaces. Fire extinguishers are used to put out fires, with different types used for different fire classes. Smoke detectors, heat detectors, and flame detectors help detect fires. Proper fire safety involves regular equipment checks, fire equipment maintenance, and correct evacuation procedures.

1. FIRE
HAZARDS

2. What is a fire hazard?
Conditions that favor fire development or growth
Oxygen, fuel, and heat
Fire hazards usually involve the mishandling of fuel
or heat
Fire or combustion is a chemical reaction between
oxygen and a combustible fuel
Source of ignition= Spark, flame and high
temperature are needed

3. Fire Triangle
The triangle illustrates the
three elements a fire
needs to ignite: heat, fuel,
and an oxygen
The fire extinguishes by
removing any one of the
elements in the fire
triangle

4. Source of
Fire Hazards
Types of Fires
Class A Fires
Class B Fires
Class C Fires
Class D Fires
Class K Fires

5. Source of Fire Hazards
Types of Fires
Class A Fires

6. Source of Fire Hazards
Types of Fires
Class B Fires

7. Source of Fire Hazards
Types of Fires
Class C Fires

8. Source of Fire Hazards
Types of Fires
Class D Fires

9. Source of Fire Hazards
Fuels
Solid
Liquid
Gases

10. Source of Fire Hazards
• Failure of electrical systems and equipment
• Lightning strikes
• Presence of a flammable gas or liquid
mixture
• Hot surfaces e. : furnaces, chimneys
• Hot engines
• Heated surface

11. Fire Extinguisher

12. Types of Fire Extinguisher

13. Types of Fire Extinguisher

14. Types of Fire Extinguisher

15. Types of Fire Extinguisher

16. Types of Fire Extinguisher

17. Types of Fire Extinguisher

19. Fire Detection Devices
Smoke detectors
•require a flow of air in order to work well
Heat detectors
•detect fires where there is no smoke
activated by the significant increase of
temperature associated with fire
Flame detectors
• react to the movement of flames.

22. DON’T
S
The smoke is extremely thick.
The fire is too hot for you to get close enough to fight
it effectively.
The fire is greater than 3 feet across.
There are potentially hazardous substances near the
fire.
You do not have the correct type of fire extinguisher
for the fire at hand.
You do not know how to use the fire extinguisher.

23. DO’s
Call the fire department.
Begin evacuating others.
Turn off the gas valve to prevent escalation
Meet at the preassigned meeting place.
Make sure that all persons have safely escaped.
When the fire department arrives, inform a
firefighter if anyone is missing; do not reenter
the building yourself.

24. DO’s
Regularly check electrical equipment
Maintain proper fire safety
equipment
Follow correct steps to put out fires
and evacuate the building