DEFINITION OF FIRE :-- COMBUSTION REACTION WITH

EVOLUTION OF HEAT AND FLAME

FIRE = FLAMMABLE VAPOUR OR GAS+ AIR IN CORRECT PROPORTION

+ SOURSE OF IGNITION +UNINHIBITED CHAIN REACTION

FIRE CHEMISTERY

FIRE CHEMISTERY

• FIRE TRIANGLE

• FUEL: VAPOUR STAGE• AIR: FUEL+AIR MIXTURE(PROPER

PROPORTION)• HEAT: NAKED OR EXCESS TEM.

Fuel

Ai

r

Heat

FIRE IS A CHEMICAL REACTION

FUEL + O2 Heat CO2 + CO

GROWTH OF FIRE

• INCIPIENT STAGE - NO VISIBLE SMOKE• SMOKING STAGE- VISIBLE SMOKE• FLAME STAGE - FLAMESTARTS,SMOKE

INCREASES• HEAT STAGE- UNCONTROLELABLE

HEAT, LARGE AMOUNT OF SMOKE ETC.

CLASSES OF FIRE

FIRE INVOLVING

ORDINARY COMBUSTIBLE MATERIALS SUCH AS*PAPER,*WOOD,*PLASTICS ETC.

* OIL

* PETROLEUM

* SOLVENTS

* GREASE

* PAINTS

FIRE INVOLVING

* L.P.G

* D.A

* GASEOUS SUBSTANCE UNDER PRESSURE

FIRE INVOLVING

* SODIUM

* POTASSIUM

* FLAMMABLE METALS

FIRE INVOLVING

ELECTRICAL FIRES ARE COMING UNDER DIFFERENT GROUPS DEPENDING UPON THE SOURSES OF FUEL, AS THE ELECTRICITY IS THE SOURSE OF IGNITION RATHER THAN THE MATERIAL BURNING.

METHODS OF EXTINGUISHING

STARVATION

STARVATION

* REMOVE FUEL

* VACATE PEOPLE

BLANKETING

* CLOSE THE AIR ENTRANCE

* TRAP THE SMOKE

* MAINTAIN THE SAME FOR SOME TIME

COOLING

COOLING

* CONTROL THE FLOW OF HEAT& THE CHAIN REACTION BY POURING WATER OR ANY OTHER COOLING MEDIUM

EXTINGUISHING MEDIA

• CLASS A (PAPER ,WOOD)- WATER

• CLASS B (OIL) - FOAM

• CLASS C (GASES) - WATER ,DCP,CO2,HALLONS

• CLASS D (METAL) - SPECIAL POWDER

1) WATER TYPE 2) FOAM TYPE

3)DRY CHEMICAL POWDER TYPE

4) CARBON DI-OXIDE TYPE

5)LIQUIFIED GAS(HALON) TYPE

PORTABLE FIRE EXTINGUISHERS

SODA -ACID TYPE FIRE EXTINGUISHERCAPACITY-9 LTR.WATER CAPACITY-9 LTR.SULPHURIC ACID BOTTLE -4OZTO OPERATE1)Remove the EXT. Keep a distance about 4-5

Mt.2)Strike the plunger knob hard.3) Hold the EXT. handle and support the

bottom.4) shake EXT. 1-2 time and direct the jet of

water at the seat of fire. DISCHARGE TIME - 1Minutes TO 1.3 Minutes RANGE - 6-8 Meters

FOAM TYPE FIRE EXTINGUISHERCapacity -9 ltrs./18ltr./150ltr.Solution A -inner chamber (Aluminum sulfate)solution B - outer chamber(sodium Bi-carbonate)Foam ratio =8-9 times (Approx.. 72 lit.)1)Remove the EXT. Keep a distance about 4-5 Mt.2)Pull the plunger knob hard and invert the EXT.2-3

times.3) Direct the jet of foam to cover the complete area. DISCHARGE TIME - 1.1/2Minutes TO 2 Minutes RANGE -4-6 mtr.

Inner chamber (Aluminum sulfate)

Outer chamber(sodium Bi-carbonate)

Plunger knob

CO2 FIRE EXTINGUISHER Capacity: 2 / 4.5 / 6.8 / 22.5Kgs. Liquified Co2 at pressure of 64

kg/cm2 to 70 kg /cm2 at Temp. below 31oc

TO OPERATE 1. Remove the locking pin 2.

Operate the wheel valve and direct thee jet of gas at the base of fire.

DISCHARGE TIME - about 30 sec. Effective range- 1to 1.5Mtr.

Co2 Type Fire Extinguishers

Plunger knob

Co2 Gas

DRY CHEMICAL POWDER TYPE

Plunger knob

Cartridge

Discharge Hose

HOW TO EXTINGUISH FIRE?

*STAND OPP.DIRECTION OF THE AIR (facing the back)

*Attack on the Base of fire.

*Keep sufficient distances from fire.

FIXED FIRE FIGHTING INSTALLATIONS 1. FIRE HYDRANT SYSTEM 2. WATER SPRINKLERS SYSTEM 3.AUTOMATIC FIRE DETECTION SYSTEM

5.AUTOMATIC FIRE ALARM SYSTEM

INFORM TIME OFFICE OR SECURTY OR SITE SAFETY PERSONNEL IN CASE OF ANY FIRE.CALL ON 07759-216205.KNOW THE USE OF DIFF. TYPE OF EXTINGUISHERS.NEVER USE WATER ON AN ELECTRICAL OR OIL FIRE.STORE INFLAMMABLE MATERIALS CLOSED & IN ITS ASSIGNED PLACE.CLEAN IMMEDIATELY ANY SPILLAGE OF INFLAMMABLE LIQUIDS.REMOVE UNWANTED WASTE MATERIALS

Dos

SMOKE IN PROHIBITED AREAS.STORE INFLAMMABLES NEAR ANY ELECTRICAL SWITCH BOARDS.OBSTRUCT THE PATH LEADING TO FIRE EXTINGUISHERS OR EMERGENCY DOORS WHEREVER PROVIDED.THROW COTTON WASTE SOAKED WITH INFLAMMABLE LIQUIDS IN THE DRAINS OR ROOM CORNERS.

Don'ts

THANK YOU