This document provides an overview of basic firefighting. It discusses the chemistry and classification of fires into A, B, C, and D classes based on the type of fuel. Methods of fire extinguishing are described, including various types of fire extinguishers that use cooling, blanketing, or chemical reactions. Preventive measures are outlined such as prohibiting smoking and overloading electrical points. The document also explains fire safety systems like hydrants, smoke detectors, sprinklers, and manual call points.

1. Basic Fire Fighting

2. Knowledge shared :
 Chemistry of fire
 Classification of fire
 Methods of fire extinguishing
 Preventive Measures

3. What is FIRE ?

4. Fire is the combination of three
elements

5. Classification of FIRE
 ‘A’ Class
Solid Fire
 ‘B’ Class
Liquid Fire
 ‘C’ Class
Gas Fire
 ‘D’ Class
Metal Fire

6. ‘A’ Class Fire – Solid Fire
 Wood
 Paper
 Rubber
 Plastic

7. ‘B’ Class Fire – Liquid Fire
 Oil
 Kerosene
 Paints
 Petrol
 Diesel

8. ‘C’ Class Fire – Gas Fire
 LPG (Liquefied Petroleum Gas )
 Nitrogen
 Hydrogen
 Methane

9. ‘D’ Class Fire – Metal Fire
 Magnesium
 Potassium
 Aluminum
 Zinc
 Sodium

10. Methods of Fire Extinguishing &
Alarms
 Fire Extinguishers
 Fire Hydrant System
 Smoke Detector System
 Sprinkler System
 Manual Call Point

11. Fire Extinguishers
 WATER Extinguisher - Cooling Method
To remove Heat
FUEL

12. FOAM Extinguisher
 Blanketing Effect – Remove Oxygen
FUEL

13. DCP Extinguisher (Dry chemical
powder)
 Blanketing Effect – Remove Oxygen
FUEL

14. CO2 Extinguisher – Cooling Method
FUE
L

15. Fire Hydrant System
 Manual operation
 Consists of 2 canvas Pipes,
15mts. each
8 Kg / Cm2
7 Kg - J
5 Kg - S
4 Kg - H
3 kg - E ( Non
Power supply)
E
H
S
J

16. Smoke is a device that System
Detector
 A smoke detector
detects smoke
 Smoke detectors are typically
housed in a disk-shaped plastic
enclosure about 6 inches in
diameter and 1 inch thick.

17. Sprinkler System
 A fire sprinkler system is an active fire
protection measure, consisting of a water
supply system, providing adequate pressure
and flow rate to a water distribution piping
system, onto which fire sprinklers are
connected.
 63 degree temperature
 Covers 6Mts .

18. Manual Call point
 It is an active fire protection device, usually
wall-mounted.
 when activated, initiates an alarm on a fire alarm system.
 the user activates the alarm by pulling the handle down,
which completes a circuit and locks the handle in the
activated position, sending an alarm to the fire alarm
control panel
 After operation, some fire alarm pull stations must be
restored to the ready position using a special tool or key in
order to deactivate the alarm sequence and return the
system to normal

19. Preventive Measures
 Avoid smoking inside the office and dispose the buds
carefully.
 Do not make unauthorized electrical connections and do
not overload the electrical points.
 Do not light incense sticks (Agarbathis) near Records,
Racks and Curtains.
 Do not forget to switch off the electrical mains before
leaving the office.

20. Preventive Measures (contd.,)
 Periodical checking of electrical wiring & removable of
combustible & inflammable liquid articles from vicinity
of naked wires.
 Do not permit any unauthorized person from carrying
work on electrical lines.
 Good house keeping essentials to prevent fire hazards.
Every employee should consider it ones responsibility to
do their part in maintaining good house keeping at their
work place..

21. Topics covered in this session :
 Chemistry of fire
 Classification of fire
 Methods of fire extinguishing
 Preventive Measures

22.  What is Fire ?
Questionnaire
 Fire is classified into ____ types.
 What is DCP ?
 Standard length of Hose pipe in Hydrant System is
____ mts.
 A Sprinkler System covers __ distance.

23. Learn to save others life
Thank you for participation