The document outlines fire hazards, describing fire as a condition requiring heat, fuel, and an oxidizing agent. It categorizes types of fire hazards, including electrical, operational, and storage hazards, as well as classifying fires into five classes based on the materials involved. It also details methods and types of fire extinguishers used to combat different classes of fire.

1. PREPARED BY:
Nicole Ann Sabayton
Rebecca Solayao
Ma. Jenessa Cajefe &
Charmaine Dela peña

2. FIRE HAZARD
• Condition that favor the development or growth of fire
with a oxygen, fuel and heat.
• A Fire Hazard is any condition or situation that
increases the likelihood of fire starting or poses a
significant risk in the event of a fire.

3. ELEMENTS OF FIRE TRIANGLE
•The Fire Triangle or combustion triangle is a simple
model for understanding the necessary ingredients
for most fires. The triangle illustrates the three
elements a fire needs to ignite. Heat, fuel, and an
oxidizing agent. (Usually oxygen).

4. TYPES OF FIRE HAZARDS
1. ELECTRICAL HAZARDS
2. PROCESS AND OPERATIONS HAZARDS
3. HOUSE HAZARDS
4. STORAGE HAZARDS
5. SMOKING HAZARDS
6. FRICTION HAZARDS
1. ELECTRICAL HAZARDS - An
electrical hazard is a type of fire that
originates from electrical equipment
or wiring.
Ex:
• Damaged wiring Broken switches, sockets
• Damaged plugs overloaded circuits
• Wet wires Liquid near computers

5. 2. PROCESS AND OPERATION RELATED
HAZARDS - Cutting and wedding
operations which use open flame and
produce spark.
3. HOUSE HAZARDS
• Dry leaves are burn by the sunlight
• If gas burner not turn off then there is
possibility of explosion.

6. 4. STORAGE HAZARDS
• Flammable or combustible materials
stored too close to heat sources
• Materials stored in damaged container
• materials stored in unlabelled
containers
• containers not tightly sealed

7. 5. SMOKING HAZARD
• Smoking around flammable or combustible
materials
• Smoking on bed
• Smoking in areas where there is an
accumulation of plastic or metal powders
that may become explosive.
• Throwing matches or cigarettes or cigars
on table or any othe place

8. 6. FRICTION HAZARD
• Choking or jamming materials
• poor adjusment of moving parts

9. CLASSIFICATION OF FIRE
There are 5 classes of fires:
1. Class A
2. Class B
3. Class C
4. Class D
5. Class K
1. Class A fire - Are fires that
involve ordinary combustible
materials such as cloth,
wood, paper, robber, and
many plastics.

10. 2. Class B fire - Are fires that
involve flammable and
combustible liquids such as
alcohol, diesel oil, oil-based
paints, lacquers etc. and
flammable gases.
3. Class C fire - Are
fires that involve
energized electrical
equipment.

11. 4. Class D fire - Are fires
that involve combustible
metals such as
magnesium, titanium,
and sodium.
5. Class K fire - Are fires that
involve vegetable oils, animal
oil, or fats in cooking
appliances. This is for
commercial kitchens,
including those found in
restaurants, cafeterias.

12. FIRE EXTINGUISHER
Fire can be extinguished by:
• COOLING - The fuel by removing heat by applying
water.
• SMOTHERING - By cutting off oxygen supply (e.g. by
application foam, carbon dioxide).
• STARVING - The fire by removing the fuel (e.g. stopping
gas flow during a pipeline fire).
• INHIBITION - By stopping the chain reaction (e.g by
applying dry chemical powder).

13. TYPES OF FIRE EXTINGUISHERS
1. WATER EXTINGUISHER
2. DRY CHEMICAL/ POWDER EXTINGUISHER OR FOAM
EXTINGUISHER
3. CARBON DIOXIDE EXTINGUISHER
4. DRY POWDERS (special) EXTINGUISHER
5. WET CHEMICAL EXTINGUISHER
1. Water Extinguisher - are
suitable for use on fires involving
solid combustibles, such as a
wood, paper, fabrics and other
class A fire risks.

14. 3. CARBON DIOXIDE EXTINGUISHER
- It dontains carbon dioxide for use
against electrical fire
2. DRY CHEMICAL / POWDER
EXTINGUISHER OR FOAM
EXTINGUISHER - Put out fire by coating
The fuel with a thin layer of dust,
separating the fuel from the oxygen in
the air.

15. 4. DRY POWDER (special) EXTINGUISHER
- Spray dry powders on combustible
metals like magnesium, titanium, sodium,
potassium and Al.
5. WET CHEMICAL EXTINGUISHER
- Use a wet, potassium acetate-
based, low pH agent to put out
"working" fires in which there are
animal or vegetable oils and fats.

16. Below are some other common causes of fire:
• Kitchen Stoves
• Faulty wiring
• Smoking in bed
• Lighting
• Flammable liquids
• Candles
• Children