8/11/2019 02.Fire Calculations

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Project : SRTPL BCP.

Owner : SRTPL.

Fire Suppression Calculations

CLIENT: SRTPL SHEET: of 2

PROJECT SRTPL,BCP DATE: 21/7/2011

PM PROJECT NO: IN20101004 ORIG: R.N

CLIENT PROJECT NO: AUTH CHK:BMD

Part of Document No./Description: IN20101004 46 CA - 0019

Calculation No./Description: Fire Suppression System Calculations

TAG No: DESCRIPTION: Fire Suppression System

1 As per NBC Part 4 Life & Safety - Table 23, Page 39

Under Group E Buisness Building, Sub division E2-Laboratories & Research Establishments

Description Building Less than 10mts in

height

Building above 10

Mts but not

Exceeding 15mts in

height

Extinguisher Required Required

Hose Reel Required Required

Dry Riser Not Required Not Required

Wet Riser Not Required Required

Downcomer Required Not Required

Yard hydrant Not Required Not Required

Automatic Sprinkler

System Required(See Note 1) Required(See Note1)Manualy Operated Fire

Alarm System Required RequiredAutomaticDetection &

Alarm System Not Required RequiredUnderground Static Water

Storage Tank Not Required Not Required

Terrace Tank 10,000ltrs 5,000ltrsPumps near U.G Sump Not Required See Note(2)

O.H.T capacity 450LPM 450LPM

Note :

1. Required to be provided if the basement area exceed 200m2

2. One Electric & one diesel pump of capacity 2280LPM & one electric pump capacity of 180LPM

2 Pump Capacity

Diesel Engine Pump 2280LPM @ 75mts

Hydrant Pump 2280LPM @ 75mts

SprinklerPump 2280LPM @ 75mts

Jockey Pump 180LPM @ 75mts

3 Booster Pump450 lpm @35mts

4 OHT Capacity

For Building less than 10mts 10,000 ltrs

For Building above 10mts

no exceeding 15mts 5,000 ltrs

5 U.G.Sump Capacity

Considering pump working

for 1 hour 2280x60

136800Litres

Total U.G.Sump Capacity 1,40,000 litres

Project Management Engineering

Services(I) Pvt.Ltd.

Last modified : 21.07.11

Rev : RA 1 of 2

Venkataramanana AssociatesProject Management Engineering Services (India) Pvt Ltd

8/11/2019 02.Fire Calculations

2/2

Project : SRTPL BCP.

Owner : SRTPL.

6 Sprinkler pipe Schedule as per NFPA 13 table 22.5.3.4

Pipe dia(in mm) Sprinklers(Nos.)

25 2

32 3

40 5

50 10

65 20

80 40100 100

150 275

7 Spacing between each Yard Hydrant is 45mts as per TAC under clause 7.6.11 page 51

8 Number of Hydrant in 150mm dia pipe

As per TAC Table 2 page 30

Hydrant Exceeding 20 nos

but not exceeding 55nos

for 2280 Lpm

9 Coverage Area of Sprinklers 9-12 Sq.mts as per standard Engineering practice

10 Suction Header size

Pump Discharge in LPM 2280Pump Discharge in m3/s 0.038

Q=AV

A= d2/4

Q(cum/sec) 0.038

V 2

( As per Standard

Engineering practice

the suction velocity

shall be considered

between 1.5 to 2)

D(in mts) 0.155526

D(in MM) 155.5263

As per the calculation

the Pipe dia(in MM) wehave got is 155 so the

suction header size is

200

Last modified : 21.07.11

Rev : RA 2 of 2

Venkataramanana AssociatesProject Management Engineering Services (India) Pvt Ltd