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CLASS |
Type of Fire |
Type of Fire
Extinguisher |
|
Class A |
Fires involving Paper,
Wood, Textile, Packing materials and the like. |
Water, foam, ABC dry
power and halocarbons. |
|
Class B |
Fires involving Oil,
Petrol, Solvent, Grease, Paints, Celluloid and the like. |
Foam, dry powder,
clean agent and carbon dioxide extinguishers |
|
Class C |
Fires involving
Electrical Hazards, Motor Vehicle Gaseous substance under pressure. |
Dry powder, clean
agent and carbon dioxide extinguishers |
|
Class D |
Fires involving
Chemicals, Metal and active like Magnesium ,titanium |
Extinguishers with
special dry powder for metal tires |
|
Area covered by Fire Extinguisher (NBC) |
|
|
Type of Fire
Extinguishers |
Coverage (Floor) Area |
|
Water/ Sand Bucket |
100 sq.mt. |
|
Sprinklers |
6 sq.mt. |
|
Extinguishers (9
Liter) |
600 sq.mt. |
|
Heat Detectors |
16 sq.mt. |
|
Hydrant Riser (Outlet
100 mm dia with landing valve and First aid hose reel) |
930 sq.mt |
|
Smoke Detectors |
50 sq.mt. |
|
Water Requirement for the Fire Fighting (AS per NBC) |
|
Q = 3000 P |
|
Q = Fire demand in
Liters/Minutes |
|
P = Population in
Thousands |
|
Note: The above
rate must be maintained at a minimum pressure of 1 to 1.5 kg / cm2 for at
least four hours. |
|
Water Requirement for Wet Riser/Down Corner System (As per NBC
-TABLE 4) |
||
|
Residential Buildings |
U.G. Water Storage
Tank Static |
Terrace Tank |
|
15 m to 30 m |
50,000 lts |
10,000 lts |
|
30 m to 45 m |
1,00,000 lts |
20,000 lts |
|
Above 45 m |
2,00,000 lts |
40,000 lts |
|
Water Requirement for Wet Riser/Down Corner System (As per NBC
-TABLE 5) |
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|
Business Building |
U.G. Water Storage
Tank Static |
Terrace Tank |
|
15 m to 30 m |
100000 lts (50000 lts
if covered area in G.F is less than 300sq.m.) |
20,000 lts |
|
30 m to 45 m |
20000 lts |
20,000 lts |
|
Above 45 m |
250000 lts |
50,000 lts |
|
Classification of fire Pumps (As per IS 15301) |
|
|
Pump Size |
Location of Pump
Installation |
|
450 Liter/Min |
Pumps to be installed
on the terrace to feed the Down Comer System. |
|
900 Liter/Min |
Pumps to be installed
on the terrace to feed the Down Comer System. |
|
2280 Liter/Min |
Pumps are to be housed
in the pump house. |
|
2850 Liter/Min |
Pumps are to be housed
in the pump house. |
|
4500 Liter/Min |
Pumps are to be housed
in the pump house. |
|
For special risks 6700
Liter/Min |
Pumps are to be housed
in the pump house. |
|
Suction and Delivery Pipe Sizes (IS 3844) |
|||
|
Pump Size |
Pump Location |
Suction |
Delivery |
|
450 Liter/min |
Terrace |
50 mm |
50 mm |
|
900 Liter/min |
Terrace |
75 mm |
50 mm |
|
1400 Liter/min |
Terrace |
100 mm |
100 mm |
|
2280 Liter/min |
Fire Pump |
150 mm |
150 mm |
|
2850 Liter/min |
Fire Pump |
200 mm |
150 mm |
|
4500 Liter/min |
Fire Pump |
250 mm |
200 mm |
|
6700 Liter/min |
Fire Pump |
250 mm |
200 mm |
|
Different Types of Fire Extinguishers for Different Classes of
Fires ( IS 2190 ) |
|||||
|
Type of Extinguisher |
IS |
Type of Fires |
|||
|
Class A |
Class B |
Class C |
Class D |
||
|
water type (gas
cartridge) |
IS 940 , IS 13385 |
S |
NS |
NS |
NS |
|
water type (stored
pressure) |
IS 6234 |
S |
NS |
NS |
NS |
|
mechanical foam type
(gas cartridge) |
IS 10204, IS 13386 |
S |
S |
NS |
NS |
|
mechanical foam type
(stored pressure) |
IS 14951,IS
15397 |
S |
S |
NS |
NS |
|
dry powder type
(stored pressure) |
IS 13849 |
S |
S |
S |
NS |
|
dry powder type (gas
cartridge) |
IS 2171 , IS
10658 |
S |
S |
S |
NS |
|
dry powder type for
metal fires |
IS 11833 |
NS |
NS |
NS |
S |
|
carbon dioxide type |
IS 2878, IS 8149 |
NS |
S |
S |
NS |
|
clean agent gas type |
IS 15683 |
S |
S |
S |
NS |
|
halon 1211 type |
IS 4862 , IS 11108 |
S |
S |
S |
NS |
|
PRESSURE TESTING OF FIRE EXTINGUISHERS ( IS 2190 ) |
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|
Type of Extinguisher |
IS |
Test Interval (Year) |
Test Pressure (kg/cm2) |
Pressure Maintained
for Min. (kg/cm2) |
|
Water type (gas
cartridge) |
IS 940 |
3 |
35 |
2.5 |
|
Water type (stored
pressure) |
IS 6234 |
3 |
35 |
2.5 |
|
Water type (gas
cartridge) |
IS 13385 |
3 |
35 |
2.5 |
|
Mechanical foam type
(gas cartridge) |
IS 10204 |
3 |
35 |
2.5 |
|
Mechanical foam type
(stored pressure) |
IS 15397 |
3 |
35 |
2.5 |
|
Mechanical foam type
(gas cartridge) |
IS 13386 |
3 |
35 |
2.5 |
|
Mechanical foam type
(gas cartridge) 135 liter |
IS 14951 |
3 |
35 |
2.5 |
|
Dry powder ( stored
pressure) |
IS l3849 |
3 |
35 |
2.5 |
|
Carbon dioxide |
IS 2878 |
5 |
250 |
2.5 |
|
Clean agent |
IS 15683 |
3 |
35 |
2.5 |
|
Dry powder (gas
cartridge) |
IS2171, IS10658 |
3 |
35 |
2.5 |
|
LIFE OF FIRE EXTINGUISHERS ( IS 2190) |
|
|
Type of Extinguisher |
Life Time, Year |
|
Water type |
10 |
|
Foam type |
10 |
|
Powder type |
10 |
|
Carbon dioxide |
15 |
|
Clean agent |
10 |
