police commissionner office...

POLICE COMMISSIONNER OFFICE BUILDING AHMEDABAD

MEP DESIGN BASIS REPORT

Gujarat State Police Housing Corporation Limited

Issue/revision Issue1/R0 Issue2/R1 Issue3/R2

Remarks Submission Information Revised as per

G+7

Configuration

Date 15-06-2015 10-07-2015 30-12-2016

Prepared by Lalit/Pragyanand

/Prabhat

Lalit/Pragyanand

/Prabhat

Lalit/Amit/Gaurav

Signature

Checked by Niraj / Vivek Rajiv Mishra Tanuj/

Pragyanand/

Prabhat

Signature

Approved by Parvendera K.

Chauhan

Vikas Bhardwaj Vikas Bhardwaj

Signature

Project Name /

Number

ACPO, Ahmedabad DESIGN BASIS REPORT

Contents

1 INTRODUCTION .................................................................................................................. 6

2 DESIGN INPUTS ................................................................................................................. 6

1 GENERAL ............................................................................................................................ 7

2 DESIGN CODES & STANDARDS ...................................................................................... 7

3 DESIGN PARAMETERS ..................................................................................................... 8

3.1 CLIMATIC CONDITIONS ................................................................................................... 8

3.2 OUTDOOR DESIGN CONDITIONS .................................................................................... 8

3.3 INTERNAL DESIGN CONDITIONS- AIR CONDITIONING AREA ............................................. 8

3.4 BUILDING ENVELOP ........................................................................................................ 9

3.5 OUTDOOR AIR REQUIREMENT ........................................................................................ 9

3.6 LIGHTING LOAD ............................................................................................................... 9

3.7 SELECTION OF EQUIPMENT .......................................................................................... 16

HIGH SIDE: ................................................................................................................................ 16

LOW SIDE: ................................................................................................................................ 16

3.8 SAFETY FEATURES: .................................................................................................... 18

4 DESIGNING PARAMETERS: ............................................................................................ 19

5 MECHANICAL VENTILATION .......................................................................................... 19

PART – 2 – ELECTRICAL ........................................................................................................... 22

1 GENERAL .......................................................................................................................... 22

2 DESIGN STANDARDS/GUIDELINES FOLLOWED: ........................................................ 22

3 DESIGN PHILOSOPHY ..................................................................................................... 22

4 STANDARD & CODES ...................................................................................................... 23

5 SCOPE: .............................................................................................................................. 27

6 ASSUMPTIONS/ ELECTRICAL DESIGN CRITERIA: ...................................................... 27

6.1 DESIGN BASIS .............................................................................................................. 28

6.1.1 ILLUMINATION SYSTEM ................................................................................................. 28

6.1.2 DESIGN PARAMETERS .................................................................................................. 29

7 POWER DISTRIBUTION SCHEME:- ................................................................................ 30

7.1 ELECTRICAL LOAD ESTIMATION ............................................................................... 30

7.2 HT SUPPLY & HT SUBSTATION:- ................................................................................ 32

7.3 LT POWER DISTRIBUTION & DG BACKUP:- .............................................................. 32

7.4 POWER FACTOR IMPROVEMENT & HARMONIC FILTER ......................................... 33

7.5 CABLE SIZING & VOLTAGE DROP CALCULATION................................................... 33

7.6 INTERNAL ELECTRIFICATION:- .................................................................................. 33

7.7 LIGHTING:- .................................................................................................................... 34

7.8 UPS SYSTEM:- .............................................................................................................. 34

7.9 LIFTS .............................................................................................................................. 36

7.10 CABLE TRAY AND CABLE TRAY ROUTES ................................................................ 36

7.11 EARTHING & LIGHTNING PROTECTION .................................................................... 36

7.11.1 EARTHING: ...................................................................................................................... 36

7.11.2 LIGHTENING PROTECTION ........................................................................................... 37

7.12 EXTERNAL AREA LIGHTING ....................................................................................... 37

8 INTELLIGENT ADDRESSABLE TYPE FIRE ALARM SYSTEM ..................................... 38

9 DATA / VOICE CABLING .................................................................................................. 39

10 CLOSED CIRCUIT TELEVISION SYSTEM ...................................................................... 39

PART – 3 - PLUMBING /SANITARY / WATER & WASTE WATER TREATMENT ................... 41

1 GENERAL .......................................................................................................................... 41

2 STANDARDS & REGULATIONS ...................................................................................... 41

3 SOURCE OF WATER SUPPLY: ....................................................................................... 41

3.1 WATER SUPPLY SYSTEM: .......................................................................................... 41

3.2 WATER TREATMENT: .................................................................................................. 42

3.3 SANITARY DRAINAGE ................................................................................................. 43

3.3.1 3-PIPE SYSTEM ............................................................................................................... 43

3.3.2 VENT TERMINATION ....................................................................................................... 43

3.3.3 STORM WATER DRAINAGE ........................................................................................... 43

3.4 ANNEXURES FOR PLUMBING AND SANITARY WORKS: ......................................... 43

3.5 HOT WATER SYSTEM: ................................................................................................. 43

3.5.1 SOLAR COLLECTION ..................................................................................................... 44

3.6 CAR PARK DRAINAGE ................................................................................................. 44

3.7 SEWERAGE: .................................................................................................................. 45

3.8 SEWAGE TREATMENT PLANT (60 M3 /DAY): ............................................................ 45

3.8.1 PROCESS DESCRIPTION: .............................................................................................. 47

3.9 STORM WATER DRAINAGE SYSTEM: ........................................................................ 49

3.10 IRRIGATION SYSTEM: .................................................................................................. 49

3.11 MATERIAL OF CONSTRUCTION (MOC) FOR PLUMBING & SANITARY WORKS: .. 50

4 PART 4: FIRE PROTECTION AND SPRINKLER SYSTEM ............................................. 64

4.1 DESIGN CRITERIA: ....................................................................................................... 64

4.2 SALIENT FEATURES OF THE PROJECT .................................................................... 64

4.3 GENERAL ......................................................................................................................... 64

4.3.1 Basis of Design ............................................................................................................... 66

4.3.2 SYSTEM DESCRIPTION:................................................................................................. 66

4.3.3 YARD HYDRANT & INTERNAL HYDRANT (WET RISERS):......................................... 66

4.3.4 FIRE WATER SOURCE: .................................................................................................. 66

4.3.5 PRESSURISATION SYSTEM: ......................................................................................... 67

4.3.6 MODE OF OPERATION: .................................................................................................. 67

4.3.7 FIRE BRIGADE INLET CONNECTIONS: ........................................................................ 67

4.3.8 PRESSURE VESSEL: ...................................................................................................... 67

4.3.9 HAND APPLIANCES: ...................................................................................................... 67

4.3.10 SPRINKLER SYSTEM: .................................................................................................... 68

4.3.11 Special Fire Suppression System ................................................................................. 69

4.3.12 MATERIAL OF CONSTRUCTION (MOC) FIRE PROTECTION WORK: ........................ 70

AHMEDABAD COMMISSIONNER POLICE OFFICE

|MEP DESIGN BASIS REPORT

6

1 INTRODUCTION

The purpose of this report is to describe the Design intent of Mechanical, Electrical, and

Plumbing (MEP Services) proposed for Ahmadabad Commissioner Police Office (ACPO) Building.

The building is divided into two configurations. The centre of the building is of G+7 configurations

and rest of the building is G+1 with a common basement for car parking & services. This building

comes under Office building category.

The development consists of the following key areas:

Conference & Administration

Joint Commissioner of Police Administration

Additional Commissioner of Police Traffic & Head Quarter

Joint Commissioner Section 1 & 2

JCP control

JCP special branch

Commissioner of Police

Common Areas

2 DESIGN INPUTS

This report has been compiled using the following inputs from the design team:

Architectural layout design drawings,

Assumed Electrical Supply Voltage Available at site from Local Power Authority,

The design criteria and parameters to be used for designing.

We note the following development work is required from specialist consultants to allow detail

design migration to the next stage:

IT Consultant

F&B Consultant

Landscape consultant

Facade Lighting

Water features consultant

Interior designer consultant



7

PART – 1 - HVAC SYSTEM

1 GENERAL

It is proposed to provide air conditioning & air cooling system in the building with the help of

economical and efficient system for all areas except common Storage rooms, pantries, Staircase,

toilets etc.

The Mechanical Ventilation has been proposed for toilets, Pantry, Car parking, DG Room, Pump

room, Transformer room and HVAC Plant room.

The following points have been explained in this Report:

Basis of Design

Parameters for Air-conditioning

Air-conditioning Load

Recommendation for air-conditioning system

Schemes for Air-conditioning system

Air cooling system

Car parking ventilation

Toilet Ventilation system

Staircase, lift well & lift lobby pressurization system

The system is designed keeping in view of following design philosophy:

Continuity & reliability.

Flexibility of Operation.

Concentration/distribution of loads.

Safety of personnel and equipment.

Ease of maintenance.

Maximum interchangeability of equipment’s.

Simplicity of operation.

Conservation of energy.

2 DESIGN CODES & STANDARDS

National Building Code India (NBC)

Energy conservation building Code (ECBC)

ASHRAE Standard 62.1.2010

ASHRAE Standard 90.1.2010

ISHRAE Handbook

Bureau of Indian standard (BIS)



8

3 DESIGN PARAMETERS

3.1 CLIMATIC CONDITIONS

Location : Ahmedabad

Climatic Zone : Hot & Dry

Latitude : 23°02’ N

Daily Range : 26 ° F

3.2 OUTDOOR DESIGN CONDITIONS

Outdoor Design Conditions for Ahmedabad have been considered based on ISHRAE Handbook & are considered as follows:-

Summer

Dry Bulb Temp. 43.3 °C (110 °F )

Wet Bulb Temp. 25.6 °C (78 °F)

Monsoon

Dry Bulb Temp. 32.2 °C (90 °F )

Wet Bulb Temp. 28.3° C (83 °F)

3.3 INTERNAL DESIGN CONDITIONS- Air Conditioning AREA

Area Description Temperature RH %

Control Room, Rest Rooms, Cabins, Chamber, JCP rooms, PA rooms, Admin officer room, Meeting rooms, Conference, CP Cabins, Platinum war room etc.

23.0+1 ° C ( 73.4 + 2 °F) < 60 %

Lobby , Cafeteria, Library, Recreation, Passport Seva, Visitors Hall, Exhibition, Janseva, Coffee shop etc.

23.8+1 ° C ( 75 + 2 °F) < 60 %

IT switch & Reprographics Rooms 25.0+1 ° C ( 77 + 2 °F) < 60 %

Server room 20.0+1 ° C ( 68 + 2 °F) < 55 %

Staff Work station areas, Halls, Library Only Air-cooling System



9

3.4 BUILDING ENVELOP

Considered

Glazing SHGC : 0.52 &

U Value: 0.23 Btu/hr-sq. ft-°F) - As per actual architectural

inputs.

External Wall U Value : 0.34 Btu/hr-sq. ft-°F)

Floor/Ceiling U Value : 0.38 Btu/hr-sq. ft-°F

Roof

Max. U Value : 0.14 Btu/hr-sq.ft-°F (assumed Insulated With 1

inch thick expanded polystyrene or equivalent material)

3.5 OUTDOOR AIR REQUIREMENT

Area Description ASHRAE 62.1-2010

Lobby, Reception, Work station area, Meeting

rooms , Conference room, control room,

Officers Cabins, Chambers, Rest rooms,

control room, Auditorium etc.

5 CFM / Person + 0.06 CFM/ Sq. ft.

Library 5 CFM / Person + 0.12 CFM/ Sq. ft.

Pre-function, Exhibition Centre 7.5 CFM / Person + 0.06 CFM/ Sq. ft.

Coffee Shop , Canteen, Recreation room 7.5 CFM / Person + 0.18 CFM/ Sq. ft.

Computer cell, Media room 10 CFM / Person + 0.12 CFM/ Sq. ft.

Gym 0.3 CFM/ Sq. ft.

3.6 LIGHTING LOAD

Area Description (As per ECBC)

Rest room, 0.90 W/ Sq. ft

Lift Lobby, Exhibition Centre cum Museum,

Waiting Area

1.0 W/ Sq. ft

Office Area, Cabins, Platinum War Rm., IT

Switch Rm., Interrogation Rm., Computer Cell,

Jan Seva Kendra, Control Rm., Server Rm.,

Technical Room, Computer cell, Gym

1.1 W/ Sq. ft

Lounge, Reception, Recreation, Library 1.2 W/ Sq. ft

Conference, Meeting Rooms, Media Rm, 1.3 W/ Sq. ft

Coffee Shop , Refreshment Corner, Canteen 1.4 W/ Sq. ft

Auditorium 2.6 W/ Sq. ft



10

Air-conditioning Load

Based on the above parameters, the heat load calculation has been carried out for each area individually. The heat load summary is as below:

SL Floor Room Description AC Area

sq.ft Ht (ft)

Occupancy (Persons)

Fresh Air

Internal Load (Kw)

Lights (watts)

Inside Temp.

(°F)

Inside RH %

Summer Load TR

Monsoon Load TR

Dehu. CFM

BASEMENT

1 Basement UPS Room 720 13 2 53 30.0 1.0 80.0 55 11.9 11.5 4812

2 Basement Battery Room 634 13 0 38 30.0 1.0 80.0 55 10.9 10.6 4440

Total 1354 23 22 9252

GROUND FLOOR

1 Ground Floor Canteen 2300 13 180 1764 5.0 1.4 75.0 55 28.1 27.3 8046

2 Ground Floor Citizen Reception Centre 4520 13 100 771 5.0 1.1 75.0 55 17.6 14.3 6794

3 Ground Floor Lobby Area ( S. Ht) 3577 13 35 390 0.5 1.0 75.0 55 14.6 7.9 6703

4 Ground Floor Lobby Area (D. Ht) 1455 13 20 187 1.0 1.0 75.0 55 10.7 7.6 5176

5 Ground Floor Security Control Room 850 13 15 126 2.0 1.1 75.0 55 5.0 3.2 2309

6 Ground Floor Coffee Shop 1257 13 65 400 2.0 1.4 75.0 55 11.3 8.2 4593

7 Ground Floor Exhibition Centre 1145 13 15 181 1.0 1.0 75.0 55 7.2 4.0 3382

8 Ground Floor Jan Seva Kendra 2460 13 50 398 4.0 1.1 75.0 55 15.4 9.6 6983

9 Ground Floor Media Room 940 13 65 381 2.5 1.3 75.0 55 9.3 7.5 3531

10 Ground Floor Hall For Visitor( Passport) 1775 13 70 457 2.0 1.1 75.0 55 12.4 8.9 4979



11


sq.ft Ht (ft)

Occupancy (Persons)

Fresh Air

Internal Load (Kw)

Lights (watts)

Inside Temp.

(°F)

Inside RH %

Summer Load TR

Monsoon Load TR

Dehu. CFM

11 Ground Floor Cabin (Passport) 155 13 3 24 0.2 1.1 75.0 55 1.2 0.7 582

12 Ground Floor Hall For Visitors (Domicile) 1775 13 70 457 2.0 1.1 75.0 55 12.4 8.9 4979

13 Ground Floor Cabin ( Domicile) 155 13 3 24 0.2 1.1 75.0 55 1.2 0.7 582

14 Ground Floor Control Room 13535 26 100 1312 77.0 1.1 73.4 55 76.1 66.0 37179

15 Ground Floor Briefing-Debriefing Room 1434 12.5 100 586 3.0 1.3 73.4 55 12.7 11.0 4987

16 Ground Floor Rest Room ( M & F) 400 12.5 6 54 0.4 0.90 73.4 55 2.0 1.2 966

Total 37733 7512 237 187 101771

FIRST FLOOR

1 First Floor Hall ( Recreation M & F) 2188 13 50 769 5.5 1.2 75.0 55 13.7 12.6 4390

2 First Floor Gym 2785 13 65 836 8.0 1.1 75.0 55 17.5 16.1 5420

3 First Floor Meeting Room 175 13 8 51 0.5 1.3 75.0 55 1.7 1.5 724

4 First Floor PA Room 117 13 3 22 0.4 1.1 73.4 55 1.1 0.7 564

5 First Floor JCP Control & Rest Room 587 13 6 65 0.5 1.1 73.4 55 2.6 1.7 1323

6 First Floor Waiting Area 655 13 50 289 0.5 1.0 73.4 55 5.9 5.2 2216

7 First Floor Conference Room 650 13 25 164 2.0 1.3 73.4 55 4.9 3.9 2183

8 First Floor JCP Spl Branch & Rest room 676 13 10 91 0.5 1.1 73.4 55 5.0 3.6 2608

9 First Floor PA Room 152 13 3 24 0.4 1.1 73.4 55 0.9 0.7 459

10 First Floor Asst. Commissioner Spl Branch (Admin)

355 13 6 51 0.5 1.1 73.4 55 2.1 1.4 1036



12


sq.ft Ht (ft)

Occupancy (Persons)

Fresh Air

Internal Load (Kw)

Lights (watts)

Inside Temp.

(°F)

Inside RH %

Summer Load TR

Monsoon Load TR

Dehu. CFM

11 First Floor Asst. Immigration Common cell

355 13 6 51 0.5 1.1 73.4 55 2.1 1.4 1036

12 First Floor Asst. Commissioner Common cell

355 13 6 51 0.5 1.1 73.4 55 2.1 1.4 1036

Total 9050 2464 59.6 50.1 22994

SECOND FLOOR

1 Second Floor Multipurpose Hall & Green Room

3673 26.4 180 1120 10.0 1.3 75.0 55 24.10 22.55 8882

2 Second Floor Foyer 1167 13.0 50 320 2.5 1.2 75.0 55 8.99 6.90 3659

Total 4840 1440 33.1 29.4 12541

THIRD FLOOR

1 Third Floor Cabin (OS Inquiry) 125 13.0 3 23 0.2 1.1 73.4 55 0.89 0.55 431

2 Third Floor Cabin (Accounts) 121 13.0 3 22 0.2 1.1 73.4 55 0.75 0.51 349

3 Third Floor Chamber-1 121 13.0 3 22 0.2 1.1 73.4 55 0.90 0.56 436



6 Third Floor IT Switch Room-1 312 13.0 0 19 1.0 0.90 77.0 55 1.76 1.13 842

7 Third Floor Meeting Room 175 13.0 8 51 0.5 1.3 73.4 55 1.71 1.39 791

8 Third Floor Add. CP's Cabin 468 13.0 8 68 0.5 1.1 73.4 55 3.14 3.12 1767

9 Third Floor Rest Room 188 13.0 1 16 0.2 0.90 73.4 55 1.25 0.78 724



13


sq.ft Ht (ft)

Occupancy (Persons)

Fresh Air

Internal Load (Kw)

Lights (watts)

Inside Temp.

(°F)

Inside RH %

Summer Load TR

Monsoon Load TR

Dehu. CFM

10 Third Floor Dep. Admin Officer 244 13.0 6 45 0.5 1.1 73.4 55 1.76 1.40 974

11 Third Floor Dep. Accounts Officer 241 13.0 6 44 0.5 1.1 73.4 55 1.64 1.28 901

12 Third Floor Pro-Office 227 13.0 5 39 0.5 1.1 73.4 55 1.65 1.43 919

13 Third Floor PA Chamber 145 13.0 3 24 0.4 1.1 73.4 55 1.11 0.76 621

14 Third Floor Lobby, Passage & Waiting room

509 13.0 15 106 0.5 1.0 73.4 55 3.40 2.24 1845

15 Third Floor IT Switch & Repro. Room-2 312 13.0 1 24 1.0 0.90 77.0 55 2.43 1.61 1158

16 Third Floor Control Room 350 13.0 3 36 3.0 1.1 77.0 55 2.40 1.81 1107

Total 3773 26.5 20 13710

FOURTH FLOOR

1 Fourth Floor IT Switch & Repro. Room-1 312 13.0 0 19 1.0 1.1 77.0 55 1.64 1.30 784

2 Fourth Floor Meeting Room 175 13.0 8 51 0.5 1.3 73.4 55 1.65 1.35 753

3 Fourth Floor JCP- HQ- Cabin 545 13.0 8 73 0.5 1.1 73.4 55 3.89 3.91 2205

4 Fourth Floor Rest Room 188 13.0 1 16 0.2 0.90 73.4 55 1.15 0.71 663

5 Fourth Floor OS- J Branch 215 13.0 6 43 0.5 1.1 73.4 55 1.46 1.41 800

6 Fourth Floor OS- C Branch 206 13.0 6 42 0.5 1.1 73.4 55 1.18 1.07 635

7 Fourth Floor Computer Cell 470 13.0 10 156 2.0 1.1 73.4 55 3.91 3.13 2196

8 Fourth Floor PA Chamber 145 13.0 3 24 0.4 1.1 73.4 55 1.06 0.76 591

9 Fourth Floor Lobby & Passage (ad.computer cell)

343 13.0 4 41 0.5 1.0 73.4 55 1.31 0.68 731



14


sq.ft Ht (ft)

Occupancy (Persons)

Fresh Air

Internal Load (Kw)

Lights (watts)

Inside Temp.

(°F)

Inside RH %

Summer Load TR

Monsoon Load TR

Dehu. CFM

10 Fourth Floor IT Switch & Repro. Room-2 196 13.0 0 17 1.0 1.1 77.0 55 1.93 1.31 922

Total 2795 19.2 15.6 10282

FIFTH FLOOR

1 Fifth Floor Conference Room 643 13.0 30 189 1.0 1.3 73.4 55 6.46 5.74 3497

2 Fifth Floor Visitors Room 470 13.0 10 78 1.0 1.1 73.4 55 3.18 2.60 1768

3 Fifth Floor Technical Room 255 13.0 4 35 1.0 1.1 73.4 55 2.23 1.56 1269

4 Fifth Floor Discussion Room 186 13.0 8 51 0.3 1.3 73.4 55 1.39 1.08 738

5 Fifth Floor Meeting Room 175 13.0 8 51 0.5 1.3 73.4 55 1.65 1.39 753

6 Fifth Floor JCP- Office-1 577 13.0 8 75 0.5 1.1 73.4 55 4.51 3.45 2373

7 Fifth Floor Rest Room-1 132 13.0 1 13 0.2 0.90 73.4 55 0.68 0.36 354

8 Fifth Floor PA Room-1 128 13.0 3 23 0.4 1.1 73.4 55 0.76 0.58 355

9 Fifth Floor IT Switch & Repro. Room-1 313 13.0 0 19 1.0 0.90 77.0 55 1.81 1.41 871

10 Fifth Floor JCP- Office-2 577 13.0 8 75 0.5 1.1 73.4 55 3.63 3.20 1856

11 Fifth Floor Rest Room -2 132 13.0 1 13 0.2 0.90 73.4 55 0.71 0.39 373

12 Fifth Floor PA Room -2 128 13.0 3 23 0.4 1.1 73.4 55 0.74 0.55 354

13 Fifth Floor IT Switch & Repro. Room-2 313 13.0 0 19 1.0 0.90 77.0 55 2.23 1.44 1077

Total 4029 662 30.0 23.8 15636



15


sq.ft Ht (ft)

Occupancy (Persons)

Fresh Air

Internal Load (Kw)

Lights (watts)

Inside Temp.

(°F)

Inside RH %

Summer Load TR

Monsoon Load TR

Dehu. CFM

SIXTH FLOOR

1 Sixth Floor IT Switch & Repro. Room-1 199 13.0 0 12 1.0 0.90 77.0 55 1.17 0.70 562

2 Sixth Floor Meeting Room 175 13.0 8 51 0.5 1.3 73.4 55 1.80 1.58 843

3 Sixth Floor IT Switch & Repro. Room-2 313 13.0 0 19 1.0 0.90 77.0 55 1.92 1.36 926

Total 687 81 4.9 3.6 2331

SEVENTH FLOOR

1 Seventh Floor Visiting Officers Waiting 410 13.0 8 65 0.2 1.0 73.4 55 3.12 2.54 1583

2 Seventh Floor Platinum War Room 546 13.0 15 108 1.0 1.1 73.4 55 4.23 3.68 2046

3 Seventh Floor Meeting Room 175 13.0 8 51 0.5 1.3 73.4 55 1.86 1.58 881

4 Seventh Floor CP's Cabin 836 13.0 10 100 0.5 1.1 73.4 55 6.41 5.10 3668

5 Seventh Floor Rest Room 261 13.0 1 21 0.2 0.90 73.4 55 1.40 0.82 812

6 Seventh Floor PA & Clerk Chamber 238 13.0 5 39 0.5 1.1 73.4 55 1.74 1.15 971

7 Seventh Floor Waiting area 359 13.0 20 122 0.2 1.0 73.4 55 4.14 3.02 2234

8 Seventh Floor IT Switch & Repro. Room-1 313 13.0 0 19 1.0 0.90 77.0 55 2.36 1.51 1145

9 Seventh Floor IT Switch & Repro. Room-2 313 13.0 0 19 1.0 0.90 77.0 55 2.19 1.42 1058

10 Seventh Floor Conference Area 2340 13.0 90 590 2.0 1.3 73.4 55 17.94 14.54 8072

Total 5791 45.4 35.4 22469

TERRACE

TFA 7.1 10.2 1500

GRAND TOTAL 70052 486 397 212484


|MEP DESIGN BASIS REPORT 16

Based on the parameters and design basis given above, the total refrigeration load works out are 486 TR for the building. Taking diversity factor of 80 % on total load, total requirement of the AC plant shall be 388 TR.

To cater the above air-conditioning load, it is proposed to install 3 nos. water cooled screw type chilling machine ( 2 working + 1 standby) in AC plant room of 200 Tr. nominal capacity ( Minimum 195 tr. actual capacity) each.

3.7 SELECTION OF EQUIPMENT

HIGH SIDE:

(i) Chilling Machine: 3 Nos. Energy efficient water cooled Screw type Chiller of 200 Tr.

Nominal capacity each (2 Working + 1stand by) shall be installed in the AC plant room.

(ii) Chilled Water Primary Pumps: 3 Nos. Primary chilled water pumps of 480 USGPM capacity each (3 Nos. Working & 1 No. Stand by) shall be install in the AC plant room.

(iii) Chilled Water Secondary Pumps: Since the buildings have different-different

requirements of air –conditioning loads at different time , hence to cater this variable loads 1 set (2 Nos. working + 1 Stand by) of Secondary chilled water pumps of 480 USGPM capacity each shall be installed in the plant room for chilled water circulation to AHUs.

These pumps shall operate through VFDs to facilitate variable pumping system which will take care of part load requirement and hence saving in energy.

(iv) Condenser Water Pumps: To circulate the condenser water from chiller to cooling tower,

Condenser water Pumps of 600 USGPM each (2 Working + 1 Stand by) shall be installed in the plant room.

(v) Cooling Towers: 3 Nos. FRP Induced draft cooling towers of 7.5 lacs K.cal/hr heat

rejection capacity (2 Working + 1 Stand by) are installed, which shall be located at second floor terrace level.

LOW SIDE:

The following low side equipment are prepared in line with the above high side equipment to cater the air-conditioning services.

(i) Air Handling Units & System design:

The building has core area at the centre which has G+7 configurations & rest air conditioned area exists at both side of the core area at ground & first floor only. The core area has two nos. AHU rooms at the ends of each floor. Floor mounted air handling unit shall be placed in the AHU rooms at each floor (wherever air-conditioning required) to cater the air conditioning load of the adjacent areas.



The area like seminar room, conference, Meeting rooms etc. has been provided with separate AHU which will run only when these areas will be in operation. Conditioned air from the AHUs will be taken through the G.S.S. ducting and will be supplied to conditioned areas through diffusers/ grills. Return air will be collected through similar diffusers/ grills mounted on false ceiling and will be taken to AHUs for reconditioning. Each floor consists of Add. CP/ JCP cabins & their rest rooms also. These areas shall be catered through separate ceiling suspended air handling units & the rest rooms are provided with separate small capacity fan coil units. The fresh air shall be taken in AHU rooms through louvers mounted on external wall of the AHU rooms. These louvers shall be provided with volume control dampers to control the fresh air quantity. The internal areas which are catered through individual AHU/FCU shall be provided with treated fresh air system. This TFA shall be mounted on terrace and the fresh air shall be feed through duct in each area. The core are of the building consists of IT switch room, which shall be catered through separate fan coil units. Security guard room, Media room, visitor hall, jan seva Kendra, exhibition hall,, gym etc. at ground & first floor level shall be catered through separate ceiling suspended air handling units. The building consists of a control room with double height configuration at ground floor having 24 hour of operation. To cater the air conditioning load, two nos. of AHU’s are proposed on both side of the control room. These AHU shall have two nos. of coils, one with chilled water system & other with Dx- type system. The Dx- coil of the AHU’s shall be connected with separate air cooled variable refrigerant volume/ flow type Outdoor units. When the central chilled water plant will be in operation, these outdoor units will be in shut- off condition & on shut down of central plant, these ODU will be in operation. The operation shall be performed by BMS system. Conditioned air from the AHUs will be taken through G.S.S. ducting and will be supplied to conditioned areas through jet diffusers from both side & the return air will be collected through grills mounted on false ceiling and will be taken to AHUs through return air duct for reconditioning. The building also consists of a server room which needs special attention for temperature & RH level of the room. Due to high sensible load, this area needs large capacity of cooling load. To cater these loads, Precision type ait conditioning system is proposed to install in the server room. To save the energy, it is proposed to provide the precision ac units with variable Capacity digital / inverter Scroll compressor to modulate the load as per requirement. The capacity of precision ac units shall be as per final heat dissipation of the server room. The outdoor units of the precision units shall be installed at the terrace level. Since the server room shall be in operation for 24 hours, hence stand by provision of PAC units are proposed so that the units can run in Sequence.

(ii) Piping: All chilled/condenser water pipes shall be of MS ‘C’ Class. The Pipes size 150mm & below shall be M.S. heavy class as per IS: 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589.



(iii) GSS Ducting: All ducting shall be machine made of G.I. sheets as per IS: 655 (amended upto date) and for certain areas wherever required it will be made at site.

(iv) Insulation: The supply & fresh air ducts will be insulated with Closed Cell Cross Linked Polyethylene foam with factory laminated aluminium foil at one side. The initial section of all the supply air ducts will be provided with acoustic lining with resin bonded fibre glass wool & covered with reinforced Plastic tissue paper and 0.5 mm thick perforated aluminium sheet at the inside surface of ducts to prevent transmission of noise to air-conditioned area. The supply air duct exposed to atmosphere shall be provided with Closed Cell Cross Linked Polyethylene foam having factory laminated fibre glass cloth & finally provided with two coats of epoxy paints at one side to protect the insulation from water & UV rays.

The chilled water pipes shall be insulated with closed cell elastomeric nitrile rubber of class 'O' insulation applied by adhesive confirming to standard specifications of required thickness depends on the pipe sizes and finally finished with 0.63mm aluminium sheet cladding. The wall and ceiling of AHU rooms shall be acoustically treated by providing resin bonded fibre glass wool covered with reinforced fibre glass tissue & perforated aluminium sheet to prevent transmission of noise to adjoining air-conditioned areas.

(v) Main Electrical Panel: Main HVAC panel shall be installed in the Plant Room.

(vi) Electrical Control Panel for AHUs: AHU panel are proposed to install in the AHU rooms.

Evaporative Air Cooling System:

Evaporative air cooling system is proposed for staff works station areas, halls, library etc. In this system air is supplied through air washer units which consist of cooling pad, fan, water tank & pump and filter section. Water continuously flow over cooling pads and air from outside comes in contact with this cooling pad and get cooled further this cooled air is supplied to areas with the help of mechanical fan. In this process both the temperature and humidity of air changes. Since in this process, there is no re-circulation system of air, hence to make the system effective & control the humidity level, 80 % of the supplied air shall be exhaust out from the space with the help of mechanical exhaust fans. The Air washer units shall be housed in AHU rooms to serve the core area of the building and fresh air shall be taken through lovers. For area at ground and first floor except core area, the air washer units shall be placed at the open terrace level. The supply air from the Air washer unit will be taken through the G.S.S. ducting and will be supplied to areas through diffusers/ grills. Similarly fan section units shall be place at terrace level for exhaust purpose.

3.8 SAFETY FEATURES:

For fire safety, fire dampers with electric actuators interlocked with blowers will be provided in the initial sections of both supply and return air ducts in each AHU & the air washer units. The AHU/ Air washer units motor will be interlocked with the central fire alarm system of building, such that in case of detection of smoke or fire by fire alarm system, the AHU/ air washer units shall automatically shut off. Fire dampers have also been provided wherever the ducts are crossing fire zones.



4 DESIGNING PARAMETERS:

Piping Design Maximum velocity : 8 Ft./Sec. (2.5 M/Sec) Maximum friction : 5 Ft./100 Ft. Run (5 M/100 M Run) AHU Design

Maximum face velocity across filters : 500 Ft./Min (150 M/Min.)

Maximum face velocity across cooling coils : 500 Ft./Min (150 M/Min.)

Maximum fan outlet velocity : 2000 Ft./Min (600 M/Min.)

Maximum fan speed : 1000 RPM

Maximum fan motor speed : 1450 RPM Duct Design Maximum flow velocity : 1500 Ft. /Min Maximum friction : 0.1 in WC/100 Ft. Run Maximum velocity at supply air outlet : 500 Ft. /Min.

5 MECHANICAL VENTILATION

The mechanical ventilation systems for various areas and for various purposes are explained as below. Basement:

The Basement in the building is proposed to be used for parking & services. This necessitates the basement to be provided with mechanical ventilation which includes supply and exhaust of stale air. Further, as per fire laws of the land, it is mandatory that in case of fire, smoke will also be removed from the basement. The system consists of vane axial flow fans. The entire supply and exhaust system are designed at 6 air changes per hour at normal mode and in the event of fire alarm this rate will increase to 12 air changes per hour with the help of additional fans. In addition to save the energy, each zone of the car parking area is provided with CO sensors which measure the concentration level of CO for the area & accordingly transmit the signal to fan for operation accordingly.



The services area like Air Conditioning plant room, LT panel room & pump room will also be provided with mechanical ventilation system. Individual vane axial flow fans are proposed to install for fresh air & exhaust air. Fresh air will be drawn from outside and supplied to mechanically ventilated areas by means of ducts and grilles. Smoke Extraction:

The large occupancy areas like multipurpose hall & the control room are also provided with smoke extraction system at 12 air change per hour for exhaust purpose. These fans will be interlocked with fire signalling system. In case of fire these fans will be in operation. Pressurization:

It is required to pressurize lift well, lift lobby & Staircases in case of fire. The lift well & Staircase shall be pressurize at 50 pa. (Pascal) & Lift lobbies at 30 pa. (Pascal) as per NBC. Axial flow fans shall be installed at terrace level for this purpose. Control wiring of these fans shall be connected to central fire control panel and shall be operated automatically only in case of fire signal. Toilets

The common toilets of the building area shall be ventilated at 15 ACPH (Air Changer Per hours). The common toilet in the core area of the building shall be provided with common exhaust duct and fans. Other toilets exhaust is also planned for ducted exhaust through individual Inline/ propeller fans. The makeup air will be drawn through door transfer grill fixed on toilet doors. Pantry Each floor consist a pantry area which also needs some exhaust. Common exhaust air fan shall be installed at the terrace level & all the exhaust air will collected through common duct & exhaust out at the terrace level. Kitchen

The kitchen area at the ground floor level shall be provided with Fresh air & exhaust air system with air washer & wet scrubber units. The exhaust rate for kitchen area is planned at 30 ACPH & to create the negative pressure in the kitchen area, the fresh air shall be 15 % less than the total exhaust air quantity. The exhaust air duct for kitchen area shall be provided with fire duct wrap/fire paint or cladding with wire wrapping to provide at least one hour fire rating. Final ventilation requirement shall be as per the kitchen consultant. Printing Area

To prevent the spread of hazardous gases or chemicals generated by machines from these areas, it is required to create the negative pressure in this space with respect to adjacent space to maintain the indoor air quality in the air conditioned space. Propeller fan are installed at each are for this purpose.



DG Room Ventilation:

Ceiling hung axial flow fan for supply and exhaust air are proposed for DG room ventilation system. The ventilation air requirement is as per manufacturer’s standard.



PART – 2 – ELECTRICAL

1 GENERAL

The objective of “The Design Basis Report” is to briefly describe the salient features of

Electrical System taken into consideration for Ahmedabad Police Commissioner Office.

Various electrical facilities for the proposed Office Building have been envisaged

considering the usage of area, pattern of electrical load and relevant Indian Standards/

Codes & good engineering practice.

2 DESIGN STANDARDS/GUIDELINES FOLLOWED:

All electrical installations will be designed and specified in compliance with the

recommendations of the following codes and standards:

National Building Code of India 2005

National Fire Code

Relevant Bureau of Indian Standards

Indian Electricity Rules 2003

CPCB Guidelines

State Bye Laws

3 DESIGN PHILOSOPHY

Power distribution system to be designed keeping in view the following:

Continuity and reliability of power supply.

Flexibility of operation.

Concentration/distribution of loads.

Safety of personnel and equipment.

Compliance with various statutory provisions such as Indian Electricity Act and Rules,

National Electrical Code and the relevant B.I.S. Specifications.

Ease of maintenance.

Maximum interchange ability of equipment resulting in minimum inventories and spare

parts.

Minimum fire risk.

Simplicity of operation.



4 STANDARD & CODES AS PER AMMENDED UP TO DATE

S. No. STANDARDS TITLE

(1) IS: 732 - 1989 Code of practice for electrical wiring installations.

(2) IS: 4648 - 1968 Guide for electrical layout in residential buildings.

(3) IS: 8061 - 1976 Code of practice for design, installation and maintenance of

service lines up to and including 650V

(4) IS: 8884 - 1978 Code of practice for installation of electric bells and call

system.

(5) IS: 5578 - 1985 Guide for marking of insulated conductor.

(6) IS: 11353- 1985 Guide for uniform system of marking and identification of

conductors and apparatus terminals.

(7) IS: 7752(Part-1)-1975 Guide for improvement of power factor in consumer

Installation: Low and medium supply voltages.

(8) IS: 3646(Part-1)-1966 Code of practice for interior illumination: Principles for good

lighting and aspects of design.

(9) IS: 3646(Part-2)-1966 Code of practice for interior illumination

Schedule of illumination and glare index.

(10) IS: 2672 - 1966 Code of practice for library lighting.

(11) IS: 10118(Part-1)-1982 Code of practice for selection, installation and maintenance

of switchgear and control gear: General.


of switchgear and control gear.


of switchgear and control gear: Installation.


of switchgear and control gear: Maintenance.




(15) IS: 2309 - 1989 Code of practice for the protection and allied structures

against lightning.

(16) IS/ IEC:62305 Code of practice for Advance Type Lightening Protection

(17) IS: 3043 - 1987 Code of practice for Earthing.

(18) IS: 5216(Part-1)-1982 Guide for safety procedures and practices in electrical work:

General.

(19) IS: 13032 - 1991 Miniature circuit breaker boards for voltages up to and

including 1000 volts AC.

(20) IS: 12640 - 1988 Residual current operated circuit breakers.

(21) IS:8623(Part-1)-1977 Factory built assemblies of switchgear and control gear for

Voltages up to and including 1000 V AC and 1200 V DC:

General requirements.

(22) IS: 8623(Part-2)-1980 Factory assemblies of switchgear and control gear for

Voltages up to and including 1000 V AC and 1200 V DC:

Particular requirements for busbar trunking system (bus

ways).

(23) IS: 694 - 1990 PVC Insulated cables for working voltages up to and

Including 1100 V.

(24) IS: 1554(Part-1)-1988 PVC insulated (heavy duty) electric cables: For working

voltages up to and including 1100 V.

(25) IS: 3961 (Part-5)-1968 Recommended current ratings for cables: PVC insulated

light duty cables.

(26) IS: 9537(Part-1)-1980 Conduits for electrical installations: General requirements.

(27) IS: 9537(Part-2)-1981 Conduits for electrical installations Rigid steel conduit.

(28) IS: 3480 - 1966 Flexible steel conduits for electrical wiring.




(29) IS: 3837 - 1976 Accessories for rigid steel conduits for electrical wiring.

(30) IS: 371 - 1979 Ceiling roses.

(31) IS: 3854 - 1988 Switches for domestic and similar purposes.

(32) IS: 4160 - 1967 Interlocking switch socket outlet.

(33) IS:1293 - 1988 Plugs and socket outlets of rated voltage up to and

including 250 volts and rated current up to and including 16

amperes.

(34) IS:11189 Standards for Dry Type Power Transformer

Elevator

(35) IS: 14655 Electrical traction lift

(36) IS: 14655/2000 Installation operation and maintenance

(37) IS: 14655/2000 Safety rules.

(38) IS: 14655/2001 Elevator components

(39) IS: 14671/2000 Manual inspection.

Transformer

(40) IS: 1180/1989 Dry type distribution transformer

(41) IS: 10028 Installation and maintenance of transformer

HT Breaker

(42) IS: 2516 (Part IV/Section -2) Circuit breaker

1982 amended up-to-date.




(43) IS: 3427 Metal enclosed switchgear control gear for 1000 volt

but not exceeding 12000 volt.

(44) IS: 2705 Current transformer

(45) IS: 3156 Potential transformer

(46) IS: 722 A.C. electricity Meter of Induction type

(47) IS: 3231 Electrical Relays

DG SET

(48) IS: 732-1989 DG installation, testing and commissioning



5 SCOPE:

The report presents and analyses the present requirements and outlines the various systems to

be adopted.

The scope of work for electrical will include but not necessarily be limited to the following:

ELECTRICAL LOAD ESTIMATION

HT DESIGN SUBSTATION

LT POWER DISTRIBUTION & DG SET

POWER FACTOR IMPROVEMENT

INTERNAL ELECTRIFICATION

LIGHTING

UPS SYSTEM

CABLE CONTAINMENT & CONTAINMENT ROUTES

EARTHING & LIGHTENING PROTECTION

INTELLIGENT ADDRESSABLE FIRE ALARM & PA SYSTEM

CCTV SURVEILENCE SYSTEM

ACCESS CONTROL SYSTEM

6 ASSUMPTIONS/ ELECTRICAL DESIGN CRITERIA:

Single point connection at 11KV shall be available from Electricity Board.

HT Metering shall be done for the Complex by State Electricity Board.

Sub-station is proposed to be installed in basement area.

Maximum power factor proposed to be maintained is 0.95.

Maximum voltage drop design of the complete distribution system at the farthest point

from the Transformer shall be restricted to 5% which is in compliance with the Indian

Electricity Rules.

Fire Alarm System to be provided on accordance with IS Codes/ NFPA.



6.1 DESIGN BASIS

6.1.1 ILLUMINATION SYSTEM

The provision of luminaries in various areas of the building has been designed to achieve

the following illumination levels:

S. No. DESCRIPTION OF SPACE

TYPE OF LIGHTING ILLUMINATION (LUX LEVEL)

1 Corridors and circulation spaces LED 150

2 Toilets LED 150

3 Staircases LED 100-150

4 Office Areas / Administration LED 250-350

5 Service Areas e.g. AHUs, Electrical Room etc. LED 150-200

6 Entrance LED 250-300

7 Record Room / Reprographics LED 250-350

8 Store LED 150-200

9 Control Room LED 300-400

10 Reception LED 250-300

11 Basement car parking T5 50-100



6.1.2 DESIGN PARAMETERS

S.No. Parameter Description

1. Supply condition 11KV, 3-Phase, 50Hz

2. Electrical supply details 415V, 3-Phase, 50Hz

3. Generator Power output 100% of rated load

4. Operating mode Continuously running

5. Maximum line voltage drop 5% at farthest point from the

Transformer as per IER

6. Fault current rating 50 KA for MDB

7. Transformer impedance As per IS:2026 (Part-I) 1997

8. Conductor specifications HT cables : XLPE Aluminium

armoured conductor (earthed)

LT Cables : XLPE insulated & PVC

sheathed aluminium armoured conductor

Wires : FRLS type

9. Minimum rating of cables As per voltage drop calculation

10. Minimum conductor size for final

wiring 2.5mm2

11. Minimum conductor size for wiring

for earthing of final circuit 1.5mm2

12. Degree of Protection Degree of protection for distribution

panel enclosure shall be as per IS:13947-1993

13. HT panels (11KV) VCB type

14. Capacitors Heavy duty MPP type

15. MV Panels MV panel have type testing CPRI

16. Bus bars As per switch gear rating.

17. Fuel type Diesel (commercial )



7 POWER DISTRIBUTION SCHEME:-

7.1 ELECTRICAL LOAD ESTIMATION

The below mentioned table clarifies the electrical load calculation & requirement for the

building/ premises with breakup of electrical loads etc.:-

ANNEXURE-1

SUMMARY OF ELECTRICAL LOADS FOR ACPO G + 7

S. No.

Description Connected Load (KW)

Demand Factor

Maximum

Demand (KW)

DG Demand (KW)

Remarks

1 ACPO Building Lighting & Power Load

a) Light Load for (G + 7) 114.06 0.80 91.24 91.24

b) Power Load for (G + 7) 372.70 0.50 186.35 186.35

c) Equipment Load (G + 7) 144.00 0.50 72.00 72.00

2 Lifts

a) Lifts (4nos. @15 KW each)

60.00 0.90 54.00 54.00

b) Lifts (1no. @10 KW each) 10.00 1.00 10.00 0.00 Considering Lift on Normal Supply

3 Fire Fighting System Load 221.00 Only Jockey Pump considered

12.00 12.00

4 Water Pumps including Treatment

45.00 0.70 31.50 31.50

5 Sump Pump 16.00 0.6 9.60 4.80

6 STP 20.00 0.50 10.00 0.00

7 External Area Lighting (Roads, Parking, Green Area etc.)

20.00 0.50 10.00 10.00

8 UPS Load

8.1 For Control Rooms 253.00 1.00 253.00 253.00

8.2 For Other Areas of Buildings

172.38 0.90 155.14 155.14



ANNEXURE-1

SUMMARY OF ELECTRICAL LOADS FOR ACPO G + 7

S. No.

Description Connected Load (KW)

Demand Factor

Maximum

Demand (KW)

DG Demand (KW)

Remarks

9 HVAC Loads

a) AC Load 671.24 0.80 536.99 134.20 Considering Control Room Plug Fan with VFD & Briefing Debriefing Room

b) PAC Server Load 105.00 1.00 PAC Load for Server

c) Mechanical Ventilation Normal case

170.40 0.90 153.36 153.36

d) Mechanical Ventilation Pressurization/ fire case

202.30 0.00 0.00 0.00

Total 2597.07 1585.19 1157.59

Transformer Capacity

Maximum demand load (kW) 1585.19

Considering overall diversity factor 0.9, Maximum demand load (kW)

1426.67

Considering 0.9 PF, Maximum demand load (kVA)

1585.19

Adopting Transformer loading @ 85%, Maximum demand load (kVA)

1864.92

Transformer Selected 11KV/.415KV indoor dry type, 2nos. of 1000kVA

DG Capacity

Maximum demand load (kW) 1157.59

Considering overall diversity factor 0.9, Maximum demand load (kW)

983.95

Considering 0.8 PF, Maximum demand load (kVA)

1229.94

Adopting DG loading @ 85%, Maximum demand load (kVA)

1446.99

1no. of 1000 kVA + 1no. of 500kVA DG Selected



7.2 HT SUPPLY & HT SUBSTATION:-

It is proposed to have 11kV 3-phase supply made available for the said complex at one

point and further will be distributed in the building with the help of distribution step-down

transformer/s by 2nos. dry type transformer voltage level (11kV/ 415V) located in the

basement area.

One no. 11kV switchboard will be installed near entry to receive the power supply from

outside and another HT panel board will be located in basement area with 1no. incoming

feeder and will include 3nos. outgoing feeder with draw out type VCB arrangement that

will fed further to Transformer/s & with spare feeder.

7.3 LT POWER DISTRIBUTION & DG BACKUP:-

Considering the normal and essential load, Main distribution board/s will be provided to

feed the supply for complete loads with automatic operation system.

Either of the transformer/s will feed the supply to any of the loads in case of failure of one

transformer or in maintenance etc.

DG’s backup supply will feed the essential loads e.g. Control room equipments/ AC’s,

Fire pumps, Water supply pumps, Server room equipments/ AC’s, External lighting &

Emergency lighting in the building also, Lifts etc.

With the above strategy, for further power distribution, the following distribution boards

are envisaged for complete buildings:

Main Distribution Board/s

Floor Panels – (At each floor)

Water Pump Panel (WPP)

Fire Pump Panels (FPP)

HVAC Panel/s

Ventilation Panel-1

Ventilation Panel-2

Sump Pump Panel/s

Lighting Distribution Boards

Small Power Distribution Boards

UPS Distribution Boards



7.4 POWER FACTOR IMPROVEMENT & HARMONIC FILTER

Besides the requirement of State Electricity Authority, improving the power factor has

added advantages that it reduces the overall demand on to the Supply Authority thereby

adding to overall economy. Thus, for power factor improvement suitable sized capacitor

panels in the Bank formation shall be provided. The capacitor bank shall be connected to

the Main LT bus and will be located along with the LT panel. Automatic power factor

correction relay of reputed make shall be provided to improve the power factor of the

system and switch on the capacitor depending on the system requirement. The power

factor shall be maintained around 0.95. Necessary online detuned harmonics filters shall

also be provided in the capacitor banks.

7.5 CABLE SIZING & VOLTAGE DROP CALCULATION

All cables shall confirm to will be sizes in accordance with IS 7098 for XLPE & IS-1554

for PVC and other relevant standards.

All cable will be selected based on current carrying capacity, length of the cable, method

of laying, de-rating factors and system fault current etc.

Permissible voltage drop at final circuit will not exceed 5% of the system voltage.

The percentage voltage drop in each circuit will considered on case by case basis and

will vary depending on length of each sub-mains and length of final circuits.

Copper conductor Cables up to 10sq.mm shall be considered and above shall be

aluminium conductors. 16sq.mm cable can be aluminium also as per the site/ equipment

selection/ requirement.

4core cables shall be used up to 35sq.mm size and 3.5 core cables shall be provided for

all above sizes.

Suitable half size neutral cables will be provided for the power cables connecting

Auxiliary transformer to LT Panel and to Sub-main LV DB. XLPE resistant cables will be

used for fire safety purpose and will comply with the performance requirement of IS 7098

category.

7.6 INTERNAL ELECTRIFICATION:-

MS/ PVC conduit shall be used for embedded wiring system and MS conduit shall be

used for surface.

For Fire alarm system MS Conduit shall only be used as a statutory requirement.

The wiring in all the areas shall be provided with FRLS PVC insulated copper wiring in

recessed PVC / surface MS Conduits. The wiring installation shall confirm to IS: 732-

1963 latest addition. The wiring for lights and small power outlets shall be with PVC

insulated FRLS copper conductor wires of 1.5 Sq.mm size and power wiring shall be

carried out with 4.0/ 6.0 Sq.mm. copper conductor wires. Colour coding shall be strictly

maintained for the entire wiring installation i.e. Red, Yellow, Blue for the phases & Black

only for the Neutral and Green only for earth.



Factory made PPI (Per Phase Isolation) MCB Distribution Boards shall be provided at

Load Centre as per area requirement. The Distribution Boards shall be connected

through Sub-mains of Copper wires/ cables in concealed PVC /surface MS conduits/

cable trays. It is proposed to use residual current circuit breaker (RCCB) in the PPI DBs.

7.7 LIGHTING:-

Lighting for common areas for office will be designed based on interiors requirement

preference would be given to energy saving fixtures lamp LED/ T5 fixtures etc.

7.8 UPS SYSTEM:-

To avoid total darkness during changeover time between Grid Power and DG power,

UPS with battery backup is proposed which shall be connected to selected light fixtures

in the various areas of building such as workstation power points and UPS lighting.

ACPO Block Wise Inventory Sheet for Workstation

For Sockets of Work Stations

S. No.

Block

- B1(A)

Block -

B1(B)

Block - B1(C)

Block - B1(D)

Block - B2

Block - B3

Remarks

1 Ground Floor 4 19 19 14 9

2 First Floor 32 32 32 88 7 34

3 Second Floor 0 0 0 0 32 0

4 Third Floor 0 0 0 0 60 0

5 Fourth Floor 0 0 0 0 76 0

6 Fifth Floor 0 0 0 0 53 0

7 Sixth Floor 0 0 0 0 81 0

8 Seventh Floor 0 0 0 0 18 0

Total No. of Workstations Block wise

36 51 51 102 336 34

Considering Power Consumption of 200 Watts @ Each Workstation

7200 10200 10200 20400 67200 6800

Total UPS Power Requirement for Sockets at Workstation other than Control Room (in kW)

122.00

9 Server Load 1 40.00

Assumed

10 Security systems

1

10.00 0.90 9.00 9.00

Assumed

11 Emergency Lighting Load @ 20% of total lighting load

1

114.06 0.90 20.53 20.53 As per Area

wise LP sheet @ 20 % of

total



ACPO Block Wise Inventory Sheet for Workstation

For Sockets of Work Stations

S. No.

Block

- B1(A)

Block -

B1(B)

Block - B1(C)

Block - B1(D)

Block - B2

Block - B3

Remarks

Lighting load

Total Load Demand

KW 191.53

UPS

Adopting over all demand factor 0.9, Maximum Demand in KW

172.38

Maximum Load Demand

Adopting UPS loading @ 90% & PF @ 0.9 UPS capacity required =

KVA 212.81

UPS Selected 3nos. X 100KVA on line redundancy mode with 30minutes backup

For Sockets of Work Stations of Control Rooms

S. No.

Block

- B1(A)

Block -

B1(B)

Block -

B1(C)

Block - B1(D)

Block - B2

Block - B3

Ground Floor (Main control room) 97

1

Considering Power Consumption of 100 Watts for each 4 Nos. Socket @ Each Workstation for 4 monitors mounted on the table

0 0 0 0 0 38.8

2 Server Load for Control Room

To be Confirmed by Client

100

3 PAC for Server 105

4 Unforeseen Load 10

Total UPS Power Requirement for Sockets at Workstation Control Room (in kW)

253.8

UPS

Adopting overall demand factor 100%, Maximum Demand in KW

253.8

Maximum Demand Load

Adopting UPS loading @ 90% & PF @ 0.9 UPS capacity required =

KVA 313.33

UPS Selected 4nos. X 100KVA on line redundancy mode with 30minutes backup



As per the load calculations above, UPS are being considering seven number UPS of

100 kVA each with three phase input & three phase output. These UPS will work on

redundancy mode.

Dedicated UPS shall be provided as per the server load requirement after confirmation of

the client’s requirement/ IT consultant.

7.9 LIFTS

The lift load will be connected to Emergency supply with provision for having DG backup

supply. The load and feeder requirement of lifts will be coordinated during detail design

stage and the same will be incorporated in electrical design.

7.10 CABLE TRAY AND CABLE TRAY ROUTES

Cable tray system will be provided for all electrical services. The system will allow for an

additional 30% spare capacity.

All the primary cable tray distribution routes will be earthed according to the

manufacturer’s requirements and in accordance with IS codes.

Ladder type cable trays shall be provided for heavy duty electrical cables as well as

perforated also or small size of cables but perforated type cable trays only for LV system

shall be provided.

7.11 EARTHING & LIGHTNING PROTECTION

7.11.1 EARTHING:

CHEMICAL EARTHING

It is proposed to provide electrolytic, chemical earthing system. This type of earthing

system has:

Low electrical resistance to earth.

Good Corrosion resistance.

Ability to carry high currents repeatedly.

Reliable long life system.

Low Maintenance.

Main earth electrode will be suitable to achieve a maximum resistance to earth of 1 Ohm.



Proper Grounding will be provided for

Normal AC supply

All apparatus and metal pieces

Steel Structures

Mechanical plant and pipe work

Separate systems of earthing shall be provided for:

UPS

Telephone / EPABX

Servers and computer equipment

AV Systems

Separate earthing shall be provided for the earthing of Panels, and earthing of

Data/Telephone System.

7.11.2 LIGHTENING PROTECTION

Since this is special type of building & later on various radio towers will be installed for

communication etc.

We recommend installing ADVANCE LIGHTENING PROTECTION early streamer type to

take care the maximum/ highest point of communication tower devices etc.

7.12 EXTERNAL AREA LIGHTING

External Area of the whole campus is proposed by using Octagonal GI poles and LED

luminaries as per requirements. The wattage of lighting will be decided during detail

design stage to maintain the minimum lux level requirements of 20 to 30 as per IS 1944.



8 INTELLIGENT ADDRESSABLE TYPE FIRE ALARM SYSTEM

TYPICAL INTELLIGENT ADDRESSABLE FIRE

ALARM SYSTEM

The main emphasis of fire detection system shall be on having the timely warning in case of any

fire.

It is proposed to provide an automatic intelligent analogue addressable fire alarm system for the

building. All the areas of the building will be provided with the smoke/ heat detection system

employing various types of detectors. Response Indicators, Manual call stations, repeater

Panels and Main Fire Control panel shall be provided at appropriate places.

The fire detection system shall include the following:-

Photo-Thermal Detectors – Photo-thermal type multi-sensor detectors will be installed in

all the corridors, lobbies, rooms, basements and kitchens etc.

Air Sampling Detectors – These detectors will be used in the air handling units in the

return air ducts to analyze the air coming from the conditioned space for any smoke.

Infra-red beam type detectors – These detectors will be used in the atrium/s if any. These

are used for the reason that the heights in the auditorium are high and the use of these

detectors reduces the number of detectors to be installed considerably.



Aspiration Detectors: Special areas like control room etc.:

As a solution, aspiration detectors are proposed to be installed in these areas. These

detectors consist of perforated pipes from which air is sucked to the laser based main

detection unit located at any convenient location outside the actual protected area. The

coverage area of each unit can be as high as 1000-2000 sqm and the piping length can

be as high as 100-200 m.

Response Indicators – Response indicators will be used outside all rooms with full height

partitions and for the detectors in the false ceiling, if any.

Manual call boxes of brake glass type are proposed to be installed near all staircases

and also in the electrical and mechanical services areas.

Main Control Panels – Automatic analogue addressable type of Fire alarm control panel

is proposed to be installed in the security/ fire control room. Repeater panels will be

provided in the security office and security post outside the building. With this type of a

panel it will be possible to pin point the exact location of fire. The panel will also be able

to dial out to predetermined telephone numbers in case of any alarm.

Public Address and talk balk system – An integral public address and talk back facility

will be provided with the fire alarm system. The loudspeakers of the public address

system will be located in common areas, and on each floor in such a way that any

message announced cover the loudspeakers is clearly audible in all parts of the building.

Also in case of fire, the fire fighting personnel will be able to send back messages by

plugging their fireman’s telephone handsets over the fireman’s telephone jacks which will

be provided in this system. The microphone, amplifiers and control switches for the public

address system will be installed in the fire control room for the building.

9 DATA / VOICE CABLING

Data information/ voice cabling shall be done in the entire premises. MS Conduit and

terminal boxes with covers and RJ-45 outlets shall be provided. The entire network shall

originate from a central server room at the first floor. Data/ voice outlet socket points will

be provided for all Computer Terminals etc. upto the LV shaft/ termination point.

Server, Hubs, Switches, modules & any hardware/ software/ design for the server

room etc. shall be provided by the IT consultant/ system provider.

10 CLOSED CIRCUIT TELEVISION SYSTEM

The Electronic Security and Surveillance will be an integrated security management

system, which shall include various sub-systems. All controls and monitoring of the

security and surveillance system shall be done from the Security Control room which shall

be provided with facility of random monitoring of the complete system with help of LCD

interactive keyboard with alphanumeric text display for camera selection.



Closed Circuit Television System is intended for comprehensive round the clock

surveillance of the Office Complex, Parking area and service areas of complex from

Security Control room.

The CCTV system shall be suited to the surveillance requirements and shall provide

performance through highly reliable equipment. The system shall provide clear and sharp

picture on TV monitor in all lighting conditions at any time of the day or night with

minimum illumination level.

All TV cameras shall be linked to TV monitors in the security control room through

programmable video distribution / switching units, which shall enable operator to switch

on any of the camera on any TV monitor. Pictures from various cameras locations shall

be displayed on TV monitor in a programmed sequence and in short selectable time

intervals with facility of automatic / manual selection, continuous recording of all cameras

shall be possible with the real time digital recorder for recording the event.

Facility shall be provided for multi view display on TV monitor. It shall also be possible to

have free enlarged view and freezing of the picture on TV monitor from any camera and

also its video recording, as required.

Video recording facility integrated into the system through time lapse real time digital

video recorder fitted with a time / date generators, identifying each frame recorded on the

tape with date and time. This shall enable knowing at a later date the exact moment of

the event occurrence and identification of the area / zone.



PART – 3 - PLUMBING /SANITARY / WATER & WASTE WATER TREATMENT

1 GENERAL

The following systems will be provided as part of the plumbing:-

Domestic cold water

Sanitary drainage

Irrigation

Sewer Treatment Plant

Water treatment Plant

Car park drainage

2 Standards & Regulations

Plumbing/Sanitary systems will be designed and installed in accordance with the following codes

and standards:

Regulations of the local authority.

National Building Code (NBC) 2005

Manual on water supply and treatments published by Central Public Health and Environment

Engineering Organization under Ministry of Urban Development, Govt. of India.

Manual on sewerage and sewage treatment published by Central Public Health and

Environment Engineering Organization under Ministry of Urban Development, Govt. of India.

SP-35 (Handbook on Water Supply & Drainage System)

CPWD specification and guidelines

A potable water specification IS: 10500-1993.

IGBC ( NC-2011) Lead Rating System

Good Engineering Practice.

3 SOURCE OF WATER SUPPLY:

Bore well/Tube well (2 Nos.)

City Water Supply

Recycled Water from Proposed Sewage Treatment Plant for Flushing / Irrigation system.

Provisions of tanker fill point in case of emergency.

3.1 WATER SUPPLY SYSTEM:

Water is an increasingly scarce and precious resource not only within the India, but around

the world. Reasons contributing to this included rising demand, water pollution and global

climate change. The design will address the pressing need to conserve and manage water

to deliver a water efficient solution. Water efficiency measures include reduction in losses,

reduction in overall water use, and reuse and conservation measures.



The water supply from City Water Supply (Municipal Main), Bore wells (with permission from

central ground water board(CGWB) and other concerned authority) & Truck fill point shall be

brought to underground fire storage tank and overflow from fire storage tank shall be taken

to raw water storage tank in order to replenish the fire storage water.

The water from raw water storage tank shall be pumped through dual media pressure sand

filter & activated carbon filter and shall be taken to the underground Domestic water tank

(Assuming the Municipal water are of potable quality).

Domestic water (Non – Flushing) from Domestic Water Storage Tank shall be pumped

through 2 Nos. (1W+1S) Domestic Water Lifting Pump to overhead fire water storage tank.

Overflow from overhead Fire Water Storage shall be taken into Domestic Water Storage

Tank.

Domestic water (Non-Flushing) from overhead domestic water tank shall be supplied

/distributed to all toilet & pantry area through gravity system (except top three floor).

Domestic water (Non – Flushing) from Overhead Domestic Water Storage Tank shall be

pumped through Hydro pneumatic System/Booster to all toilets, Pantry Area [For Top Three

Floor].

Water from Flushing Water Storage Tank from STP Plant Room shall be pumped through

Flushing Water Lifting Pumps to Overhead Flushing Water Storage Tank at Terrace where

Flushing Water shall be distributed through gravity system to all WC & urinals.

Water from Soft Water Storage Tank from WTP Plant Room shall be pumped through Soft

Water Lifting Pumps to Overhead Soft Water Storage Tank at Terrace where Soft Water

shall be distributed through gravity system to D.G. set cooling towers.

The Domestic Water Supply to each drinking water cooler shall be provided through water

purifier unit.

3.2 WATER TREATMENT:

The following water filtration & bacteriological treatment is proposed to handle parameters in

accordance to that for potable domestic water supply.

i. Filtration Pressurized through dual media pressure sand

filters/Activated carbon filter.

ii. Bacteriological treatment by Chlorination/UV treatment.

iii. Softening Process: For D.G. set cooling tower makeup.

Final treatment process will only be decided when test report for bore well water sample is

taken.



3.3 SANITARY DRAINAGE

3.3.1 3-PIPE SYSTEM

In general the drainage system shall be 3 pipe stack system (soil, waste and vent) gravity

type. Out flow from the buildings and facilities will be directed to the basement ceiling

further will be directed to the sewer treatment plant through a series of manholes. Stack

offsets will be avoided wherever possible.

3.3.2 VENT TERMINATION

As per American Society of Plumbing Engineers (ASPE), vents shall terminate 3 m from

intake louvers, Doors, windows and other roof openings.

3.3.3 STORM WATER DRAINAGE

The storm water from the building will be dropped through gravity system to the basement

ceiling and will be connected to the nearby harvesting pit .The overflow will be further

discharged to the municipal line through series of manhole or drain channel.

3.4 ANNEXURES FOR PLUMBING AND SANITARY WORKS:

Sr. No. Description Annexure No.

1 Water Requirement Summary Annexure – I

2 Water Requirement Detail Annexure – I(a)

3 Capacity of Underground & Overhead Water

Storage Tank

Annexure – II

4 Design basis / calculation for selection of tube

well / Bore well

Annexure – III

5 Storm Water Drainage & Rain Water Harvesting

Pit Calculation

Annexure – IV

6 Catchment Area Detail Annexure – IV (a)

7 Solar Water Heating System for Pre Heating Annexure – V

8 Make up soft water requirement for air

conditioning

Annexure – VI

3.5 HOT WATER SYSTEM:

Hot water for domestic use in kitchen/Pantry shall be provided through Electric Water

Heaters (Geysers).



3.5.1 SOLAR COLLECTION

Sunshine is free and exhaustible in the Gujarat therefore we are looking at using hot

water solar Collectors on this project. It is estimated that for every 2m2 of solar collector

we can produce 1250 litres of hot water. The units are fairly light and robust at 52kg per

unit. The structural engineer and architect need to establish if this can be accommodated

on the roof. These systems have high life expectancy. The hot water is stored in the

collectors and supplied when needed. Back up electric heater may be required to ensure

a consistent water supply. Domestic hot water supply pipe work will be distributed to the

kitchen/ Pantry. The heaters will be fed from the cold water supply.

Solar water heating system shall be provided for pre-heating 20% of the heating

requirement shall be met from solar heat.

The solar water heating system shall comprising of following components:-

a) Solar collector

b) Plate heat exchanger

c) Hot water primary pump

d) Hot Water secondary pump

e) Piping, valve & Accessories

3.6 CAR PARK DRAINAGE

The proposed basement shall be catering to the Parking requirements for the project, and the

services areas such as Plumbing & Fire Fighting Plant Room, Electrical Rooms etc. shall also be

coming in the basement. Provision for drainage is also to be made in case of operation of

Sprinkler System. Therefore it is necessary to do the proper planning of drainage of the

basements, to cater to the following circumstances:



Channels shall be provided at the starting & ending point of all ramps into the basement.

The basement shall be provided with a network of drain channels.

The drain channels shall be discharging into drainage sumps. The sump shall be equipped

with fixed type submersible drainage pumps, which shall automatically operate based on a

level indicator and controller system. The sump pumps shall discharge the drain water

outside the building into the external storm water drainage system

Any wet areas such as toilets shall be provided with a sewerage sump with automatic

submersible sewage sump pumps.

3.7 SEWERAGE:

Drainage system for soil & waste is based on the most efficient, functional design, minimum

maintenance after installation and available side topography to minimize the excavation work

in laying the pipes; two pipe systems (soil and waste) is proposed to carry soil and waste

separately from the building under gravity.

Waste pipes are connected to sewerage manhole through gully trap and soil pipes are to be

directly connected to the sewerage manhole.

The main sewage is carried through a battery of manholes and finally discharged into

Sewage Treatment Plant (STP).

■ BASIS OF DESIGN FOR SEWERAGE:

It has been considered that 80% of the domestic water supply (Non Flushing) & 100% of

Flushing Water demand shall find its way into the Proposed Sewage Treatment Plant.

The sewer lines have been designed for peak demand (three times Av. Dry Weather Flow in

relation to the water supply demand).

All the sewer line has been designed to run half full.

Necessary provisions for laying S.W. / R.C.C sewer lines and manholes etc. have been

made in the scheme.

Grease trap for kitchens/pantry is also provided before kitchen waste is discharged into

Sewage.

3.8 SEWAGE TREATMENT PLANT (60 M3 /DAY):

Sewage Treatment Plant of 60 m3/day Moving bed bio reactor (MBBR) for office shall be

provided.

In order to conserve water, Sewage Treatment Plant has been designed to ensure that treated

effluent (water) characteristics are well below the permissible limits of local/national pollution

control norms even under varying flow conditions which are typical for such systems. This



implies that the selected process shall be able to withstand the shock load situation.

We propose to use Moving bed bioreactor working on the principles of attached growth process

after some pre-treatment operation. This has the following advantages:

a) The process has long retention time and can absorb shock load situation.

b) The process produces a well-oxidized sludge in small quantities only, which can be removed

and used as manure.

The sewage treatment plant has been designed with a capacity to handle 60 m3/day for office

building of soil waste including Pantry waste. Entire sewage treatment plant is underground &

consists of Equalization and collection sump with horizontal centrifugal pumps, bioreactors

tanks, Tube setting tank, sludge holding tank and Treated Effluent tank, filter feed pumps,

drainage pump for plant room drainage, Dual Media filter, activated carbon filter,

S.S/MS/GI/HDPE pipe and fitting, valves and associated electrical works.

The STP unit shall be aerobic system based for better efficiency and space conservation. The

basic design parameters of the STP are as follows:

a) Effluent

pH : 6.5 - 8.5

Suspended Solids : 250 - 350 Mg/l

BOD5 : 250 - 300 mg/l

COD : 350 - 450 mg/L

Oil & Grease : 20 - 40 mg/L

b) Treated Effluent

pH : 6.5 - 7.5

BOD5 : Less than 30 mg/l

S. Solids : less than 50 mg/l

COD : Less than 150 mg/l

Oil and Grease : Less than 10 mg/l

The Waste Water Treatment System will be treated using a Moving bed bio reactor (MBBR)

consisting of following system:-

Component – I [Pre Treatment]

Screen Chambers.

Oil & Grease Removal Chamber

Collection cum Equalization Tank

Non-clog type submersible sewage transfer pumps (If required)

Waste water transfer pump (Bypass Pump) from Equalization tank to municipal

sewer in case of Maintenance of STP (If required)



Component – II [Secondary / MBBR Treatment]:

MBBR Tanks

Clarifier ( Secondary Tube Settler)

Clear Water Tank (Chlorine contact cum Filter Feed Tank)

Aerobic Sludge Holding Tank

Sludge Recirculation Pumps

Dosing Pump

Filter Press Feed Pump

Filter Press

Component – III [Tertiary Treatment]:

Water Softener and brine tank

Irrigation Water Storage Tank

Flushing Water Storage Tank

Flushing water lifting pump

Irrigation water distribution pump

3.8.1 PROCESS DESCRIPTION:

Sewage treatment plant shall be designed to ensure that treated effluent (water)

characteristics are well below the permissible limits, even under varying flow conditions.

This implies that the selected process shall be able to withstand the shock load situation.

It is proposed to use Moving bed bioreactor working on the principles of attached growth

process.

The treatment plant shall be designed with a capacity to handle 60 m3/day for office

building of waste water.

Screens will be provided in screen chambers and it will be manually cleaned by going

down to a platform. Fully submersible centrifugal non clog sewage handling pump will be

provided in the collection cum equalization tank to pump the collected waste water to the

next MBBR tanks. Automatic level controller will be provided in the tank to turn the pump

off at the low water level in the tank and to start the pump when water level is high

automatically. Air will be introduced in this tank to prevent any potential foul smell

problem & to provide the mixing of waste water to avoid the sedimentation of solids in this

tank. Air Grid used for aeration purpose shall be non-clog.

The waste water from equalization tank is pumped to the moving bed bio reactor. There

shall be two nos. of bioreactors in series for the efficient working and removal of BODS

for the required retention time. The process inside the moving bed bioreactors consists of

adding small cylindrical-shaped polyethylene/polypropylene carrier elements in aerated

basins to support biofilm growth. The small cylinders are provided with a cross inside the

cylinder and longitudinal fins on the outside. The biofilm carriers are maintained in the

reactor by the use of a perforated plate with appropriate slot at the tank outlet. Air

agitation or mixers are applied in a manner to continuously circulate the packing. The

packing may fill 25 to 50 percent of the tank volume. Specific surface area of the packing

is about 450-500M2/M3 of bulk packing volume. The waste water from first bioreactor

https://www.google.co.in/search?q=%EF%82%B7Clarifier+(+Secondary+Tube+Settler)&sa=X&rlz=1C1PRFC_enIN604IN604&espv=2&biw=1280&bih=933&tbm=isch&tbo=u&source=univ&ei=m7KwVJfOHMyjugTIg4CYDA&ved=0CBsQsAQ



flows by gravity through the perforated plate/mesh to the next bioreactor kept in series.

Inside the bioreactors, aerobic bacteria grow in an attached growth from around the

moving plastic media inside the reactors. The bacteria have to reduce BOD & COD of

waste water in the presence of oxygen provided through the air grids located at the

bottom of the reactors. The Process does not require any return activated sludge flow or

backwashing.

From the bio-reactors, the effluent passes by gravity into the clarifier (Tube Settling

Tank). Clarifier will be a hopper bottom sedimentation tank provided with appropriate size

PVC tube deck media. The suspended solids will settle at the bottom of the tank & clear

supernatant will overflow to filter feed tank through outlet launder. The collected sludge at

bottom shall be transferred through pumps to sludge holding tank.

The clear supernatant after clarifier will be collected in to filter feed tank. This tank will act

as housing tank for filter feed pumps. The clarified & dis-infected water will be then fed to

filtration unit.

Filtration unit consisting of Dual Media sand filter, activated carbon filter and ultra-filtration

system will remove the residual impurities such as odour / colour, suspended solids,

BOD/COD. The treated water after the filtration unit will be collected in Irrigation cum

Flushing water storage tank from where it is transferred to flushing water tank at terrace &

Irrigation System.

Excess sludge from the bottom of the settling tank will be removed and transferred to

sludge holding tank. Air grid shall be provided in this tank to avoid conversion into

anaerobic conditions, thickening of sludge and keep sludge in homogenous condition.

The digested & thickened sludge shall be further thickened through Sludge Dewatering

System (Filter press with screw pump) and disposed off periodically through closed

tanker or can be reused as manure.

2 Nos. (1w+1s) Flushing Water transfer pump shall be provided to transfer the Flushing

Water from UG Flushing Storage tank to overhead flushing water storage tank located at

terrace/ mummty of building from where the flushing water supply under gravity shall be

provided to all WC’s & urinals.

2 Nos. (1w + 1s) Irrigation Water Transfer Pumps shall be provided for Irrigation water

supply distribution system for Landscape Area, Planter & Green Area.

UV unit shall be provided after Activated Carbon Filter.

Re-Use & Disposal of Treated Effluent

Considering the site planning and various conditions of the project, the various opting

available for re-use of the treated wastewater from the Sewage Treatment Plant are:

Flushing Purpose

Use for Flushing purpose for Water Closet (WC) and Urinals. The Treated Effluent from

Flushing Water Storage Tank pumped into the Flushing Water overhead water tank

through water lifting pumps and supplied to all WC & Urinals through gravity system.



Irrigation Purpose

Use Irrigation purposes in the campus for watering the lawn hydrants and planters etc.

The treated effluent from the STP shall be pumped into the Garden Hydrant Ring, which

shall be laid for the entire site.

3.9 STORM WATER DRAINAGE SYSTEM:

Storm water drainage systems will be designed based on a rainfall intensity of 100 mm

per hour for the purpose of designing rain water harvesting pits. 1 No. Rainwater

harvesting pit of size 3m dia x 3.5m effective depth shall be provided. For detail refer

storm water drainage calculation. However, the rainfall intensity of 75 mm per hour shall

be considered for roof rain water drainage.

Storm water drainage system will be provided for the building roof drainage and the site

drainage.

The Storm water will be collected by gravity through catch basin, storm water manhole

and RCC pipe and finally discharge to the Rainwater Harvesting Pit.

Overflow of rainwater harvesting pit shall be discharged to city storm water drain/storm

water sump.

3.10 IRRIGATION SYSTEM:

Irrigable Area

The premises comprises of irrigable area such as planter, lawns etc, hydrant/sprinkler

system is proposed as per Landscape/ plantation design.

Source of Water

The irrigation water shall be made available from treated effluent of sewage treatment

plant (STP).

Distribution System

A network of distribution system is to be designed to supply irrigation water at all locations

where green patches are to be developed. The irrigation water is to be supplied through

pressure lines by pumping.

Water requirement for Landscape, Green Area and various plants shall be confirmed by

Landscape Consultant/Architect.

Pressure requirement/Residual pressure for Irrigation System shall be confirmed by

Landscape Consultant/Architect.



3.11 MATERIAL OF CONSTRUCTION (MOC) FOR PLUMBING & SANITARY WORKS:

Sr.

No..

Description of Services Material of Construction

(MOC) Proposed

IS Code

[1] Internal drainage (Soil, Waste & Vent. Pipe

& Fitting, Accessories) (Toilet/Kitchen

+Shaft)

UPVC SWR Pipe &

Fittings

IS:13592-2013

[2] Soil & Waste Header running at Basement

Ceiling

CILA Pipe & Fittings IS-1536 and IS-

1538

[3]

Rain Water Disposal System, rain water

down take (Terrace/Shaft up to Catch

Basin)

UPVC Rain Water Pipe

Class III & Fittings

IS 4985

[4] a) Domestic Water Supply System (Plant

Room /Shaft/Terrace)

G.I. Class ‘C’ Pipe & Fitting IS-1239-1982

b) Domestic Water Supply (Internal) CPVC Pipe & Fitting

[5] a) Flushing Water Supply System

(Plant Room /Shaft/Terrace)

G.I. Class ‘C’ Pipe & Fitting IS-1239-1982

b) Flushing Water Supply (Internal) CPVC Pipe & Fitting

[6] Domestic /Flushing /Soft Water Riser

(Shaft)

GI Class ‘C’ Pipe & Fittings IS-1239-1982

[7] Domestic Water/Flushing Water/Soft

Water/Irrigation Water/Header Running in

Basement (From WTP/STP Plant Room to

Riser)


[8] Overflow/Drain/Vent Pipe for OHT/UGT

(Terrace + Basement)


[9] Water Supply External

(From Tube well / Municipal Water Supply

to UG Tanks)

CI LA Pipe & Fittings IS-1536 and IS-

1538

[10] Garden Hydrant System

(External)

UPVC Pipe & Fittings IS-4985-2000

[11] Drainage Sump Pump discharge Pipe &

Header (Basement)


[12] Sewage Sump Pump Discharge Pipe &

Fitting (Basement)


[13] External Sewerage System Stoneware Pipe & Fitting IS:4127-1983

[14] External Storm Water Drainage System RCC Pipe & Fitting IS:458

[15] Basement Drain Pipe CI Pipe & Fittings IS-3989-1984

[16] Bypass Pipe from STP to Municipal Sewer

(during the maintenance of STP)

CI LA Pipe & Fittings IS-1536 and IS-

1538



ANNEXURE – I

WATER REQUIREMENT SUMMARY

Sr.

No. Description

Water Consumption

(LPD)

1 Domestic Water Requirement (Annexure – I(a)) 38,940 LPD

2 Flushing Water Requirement (Annexure – I(a)) 18,780 LPD

3 Irrigation Water Requirement (Annexure – I(a)) 56,700 LPD

4 Soft Water Requirement (Annexure – VI )

40,000 LPD

5 Filter Back Wash Water Requirement 6,909 LPD

6 Water Bodies Water Requirement (L.S) 3976 LPD

Total Water Requirement 1,85,305 LPD

Total Water Requirement (Say)

1,85,000 LPD

185.00 KLD



ANNEXURE – I (a)

WATER CONSUMPTION DETAIL

WATER REQUIREMENT SHEET

Sr.

No

.

Description

Water

consumpt

ion per

unit

(LPCD)

No. of

Occupants

Domestic

Water

Requireme

nt (LPCD)

Flushing

Water

Requireme

nt (LPCD)

Total Water

Consumption

LPD

1 Ground Floor

a) Staff 45 191 5730 2865 8595

b) Visitors 15 241 0 3615 3615

c) Staff Canteen & Coffee Shop 45 7 210 105 315

d) Canteen and Coffee Shop 70 240 16800 0 16800

2 First Floor

a) Staff 45 208 6240 3120 9360

b) Visitors 15 96 0 1440 1440

3 Second Floor

a) Staff 45 76 2280 1140 3420

b) Visitors 15 5 0 75 75

4 Third Floor

a) Staff 45 20 600 300 900

b) Visitors 15 5 0 75 75

c) Staff of Pantry 45 3 90 45 135

5 Fourth Floor

a) Staff 45 67 2010 1005 3015

b) Visitors 15 45 0 675 675

6 Fifth Floor

a) Staff 45 60 1800 900 2700

b) Visitors 15 37 0 555 555

7 Sixth Floor

a) Staff 45 52 1560 780 2340

b) Visitors 15 28 0 420 420

8 Seventh Floor

a) Staff 45 54 1620 810 2430

b) Visitors 15 57 0 855 855

Total 38,940 18,780 57,720

12 Soft water Requirement for

HVAC Cooling Tower

40,000

13 Water Requirement for Air

Washer

20,000

14 Water bodies (L.S) 3,976

15 Filter back Wash (L.S) 6,909

16 Irrigation @ 4.5 litres per

Sqm. (Assume Green

Area=12600 Sqm.)

56,700

Total Fresh water required before

commissioning of STP

1,85,305

STP Capacity 49,932

Total Fresh water required After

commissioning of STP

1,50,353



ANNEXURE – II

UNDERGROUND & OVERHEAD WATER STORAGE TANK

Sr.

No. Description of Tanks

No of

Tanks

Capacity

(m³)

Total Capacity

(m³)

UNDERGROUND WATER STORAGE TANK :-

1 Fire Water Tank 2 Nos. 100 M3 200 M3

2 Raw Water Tank 2 Nos. 75 M3 150 M3

3 Domestic Water Tank 2 Nos. 45 M3 90 M3

4 Soft Water Tank 2 Nos. 45 M3 90 M3

OVERHEAD WATER STORAGE TANK :-

1 Fire Water Tank 1 No. 20 M3 20 M3

2 Domestic Water Tank 1 No. 15 M3 15 M3

3 Soft Water Tank 1 Nos. 10 M3 10 M3

4 Flushing Water Tank 1 No. 10 M3 10 M3

Notes:-

1. It is proposed to provide R.C.C underground tanks for a capacity equivalent to one day

water requirements for domestic purpose.

2. Capacity of fire tanks shall be as per NBC part IV.

a. The storage capacity of overhead water tanks is 1/3 full day of total daily water

requirement.



ANNEXURE-III

DESIGN BASIS / CALCULATION FOR SELECTION OF TUBE WELL / BOREWELL

Tube well/ Bore well:-

Total daily fresh water requirement = 185000 liter / day

= 185 KLPD

Assuming on Average yield of Tube well = 15000 liter / hour

Considering pumping hour = 8 hours

No. of Tube Well Required = Daily Water Requirement

Pumping Hour x Discharge of Tube Well

= 185000 liters/day

8 hr x 15000 liter/hour

No. of Tube Well Required = 1.54 Nos

Add 10% as Standby = 0.154 No.

Total Nos. of Tube well required = 1.69 Nos.

Say = 2 Nos.

Total No. of Tube well provided = 2 Nos.

It is proposed to provide 2 Nos. Tube wells to meet the entire fresh water requirement of project.



ANNEXURE-IV

RAIN WATER HARVESTING PIT CALCULATION

DESIGN BASIS FOR STORM WATER DRAINAGE SYSTEM:

RUN – OFF [DISCHARGE]

Q = 10 CIA

Where

Q = run-off (discharge) in cubic meters per hour (m3/hour).

C = Co-efficient /Impermeability factor of the surface.

I = Intensity of rainfall.

=> Taking 80 mm/hour for Ahmedabad.

A = Total Drainage Area in Hectare.

Co-efficient of Runoff/Impermeability Factor [C] :

Sr.No. Description of Surface Value of runoff coefficient /

Impermeability factor of the surface

1. Terraces, Hard paved surface 0.70 - 0.80

2. Paved Surface, Roads 0.60 - 0.70

3. Natural ground, sloping ground 0.20 – 0.50

Conversion Factor

1 Hectare = 10,000 Sq.mt

1 Sq.mt = 1/10,000 Hectare

AHMEDABAD COMMISSIONNER POLICE OFFICE POLICE COMMISSIONNER’S OFFICE BUILDING AHMEDABAD


ANNEXURE-IV (a)

STROM – WATER RUN OFF (DISCHARGE) CALCULATION

Sr.

No.

Type of

Structure/Surface

Catchment Area

[A]

Run off

Coefficient

[C]

Intensity

of rainfall

(mm/hour)

Discharge

(Run off)

[Q=10 CIA]

m3/hr

Total

(m3/hr)

Discharge

[Q] Sqm. Hectare

[1] Building (Terrace

/Hard Paved Area)

a) Area (A1) 8975 0.8975 0.80 80

10 x 0.80

x 80 x

0.8975

574.4

Say of [1] 8975 0.8975 575

[2] Paved Surface

(Road)

a) Area (P1) 2500 0.2500 0.60 80

10 x 0.60

x 80 x

0.2500

120

Say of [2] 3500 0.3500 120

[3] Green Area (G) 17339 1.7339 0.20 80

10 x 0.20

x 80 x

1.7339

277.4

Say of [3] 17339 1.7339 278

Grand Total (1-3) 28814 2.8814 973 m3/hr

Considering coefficient for Evaporation/ Spillage and first flush etc.

= 0.800

Total Storm Water Flow = 973 X 0.800 M3 /Hour

= 778.4 M3 /Hour

SAY = 780 M3 /Hour

Total Storm Water Flow = 780 M3 /Hour



VOLUME OF STORM WATER

Total Storm Water Flow = 780 m3/hr

Considering 15 minutes (0.25 Hr) Retention Period.

Volume Required = 780 x 0.25

= 195 m3

Volume (SAY) = 195 m3

Considering Rain Water Harvesting Pit of size 3.0 m dia. and 3.5 m effective depth.

Volume of One No. Rain Water Harvesting Pit

Diameter of Pit (d) = 3.0 m

Liquid Depth [D] = 3.5 m

Volume of 1 No. Rain Water

Harvesting Pit =

= 24.7275

Say = 25 m3

No. of Rain Water Harvesting Pit

Total No. of rain water

Harvesting pit required = Total Volume

Volume of One No. Rain Water Harvesting Pit

= 195

25

= 7.8 Nos.

Say = 8 Nos.

Providing 8 Nos. Rain Water harvesting pits of size 3 m dia. x 3.5 m effective depth

with 160 (OD) UPVC slotted pipe up to a layer where sandy aquifers/permeable

layers exist.

x d2 x D

4

x 9.0 x 3.5

4



ANNEXURE-V

SOLAR WATER HEATING SYSTEM

[1] Hot Water Requirement

a) Hot Water Requirement for Canteen & Coffee shop Area

b) Domestic Water Requirement for

Kitchen, Food & Beverage = 250 Seat X 70 Liter/Seat/day

= 17,500 liter/day

c) Considering hot water requirement as 35% of Domestic Water Requirement

d) Hot Water Requirement = 0.35 X 17,500 Liter/day

= 6,125 Liter/day

e) Total Hot Water Requirement = 6,125 Liter/day

[2] CAPACITY OF SOLAR WATER HEATING SYSTEM

f) Considering 20% of total hot water requirement for Solar Water Heating System

g) Capacity of Solar Water Heating System = 0.20 X 6,125 Liter/day

= 1225 Liter/day

[3] Estimation of Solar Collector required:

h) Energy content of Hot Water at 35OC Temperature rise

= Total Hot Water generated

= 1225 LPD x 35OC K-cal/day

= 42,875 K-cal/day

i) No. of Solar Collector required = Energy content of Hot Water at 35OC K-cal/day

5000 Kcal/day

= 42,875 5000

= 8.575 Nos. Say = 9 Nos. Solar Panel

Total No. of Solar Panel provided = 9 Nos.



ANNEXURE – VI

MAKE UP SOFT WATER REQUIREMENT FOR AIR CONDITIONING

AIR CONDITIONING (2Nos. x 200TR):

Total Tonnage = 400 TR

Per TR Circulation Through Cooling Towers = 3 GPM/TR

Total = 400 x 3 GPM

= 1200 GPM

= 1200 x 3.78 LPM

= 4536 LPM LOSSES CONSIDERED:

a) Evaporation Losses = 0.7%

b) Drift Losses = 0.05% as per Cooling Tower Manufacturer

c) Bleed Losses = 0.20 %

Assume Operational working hours for Office Areas of Building:- Office Area – 15 Hours

Hence makeup soft water requirement/consumption @15 hours average Operation per day

= (4536 x 0.7 x 60 x 15) + (4536 x 0.05 x 60 x 15) + (4536 x 0.2 x 60 x 15) 100 100 100

=28,576.8 + 2,041.2 + 8,164.8 = 38782.8 Liters

Say = 40,000 liters Makeup soft water requirement For Air conditioning cooling Towers = 40,000 Liters/day



WATER BALANCE DIAGRAM BEFORE COMMISSIONING OF STP



WATER BALANCE DIAGRAM AFTER COMMISSIONING OF STP



IMPORTANT INDIAN STANDARDS PLUMBING & SANITARY WORK

IS 651-2007 Specification for salt Glazed stoneware pipes and fittings

(First revision). IS 782-1978 Specification for caulking lead. IS 1172-1993 Code of basic requirements for water supply, drainage and

sanitation (revised). IS 1239 (Part-I & II) Specifications for mild steel tube, tubular and other steel pipe

fittings. IS 1537-2001 Specification for vertically cast iron pressure pipes for water,

gas and sewage. IS 1536-1976 Specification for centrifugally Cast (Spun) Iron pressure

pipes for water, gas and sewage. IS 1538 (Part 1 to 23) Specification for Cast Iron fittings for pressure pipes for

water, gas and sewage. IS 1626-1994 AC building pipes, gutters and fittings (Spigot and socket

type). IS 1726-1991 Code for cast iron manhole frame and cover. IS 1729-2002 Specification for Sand cast iron Spigot and Ventilating pipes,

fittings and accessories. IS 1742-1983 Code of practice for building drainage. IS 2064-1993 Code of practice for selection, installation and maintenance

of sanitary appliances. IS 2065-1983 Code of practice for water supply to buildings. IS 3114-1994 Code of practice for laying of C.I. Pipes. IS 3589-2001 Specification for electrically welded steel pipes for water, gas

and sewage. IS 3989-1984 Centrifugally cast spun iron and socket soil and ventilating

pipe, fittings and accessories. IS 4111-1986 Code of practice for Ancillary structure in sewerage system. IS 4127-1983 Code of Practice for laying glazed stone ware pipe. IS 4515 Specification for un plasticized PVC pipe fittings.



IS 4985-2000 Specification for un plasticized PVC pipes for portable water

supplies. IS 1703-2000 Ball Valves IS 4736-1986 Galvanizing G.I. Pipes IS 780-2000 Cast iron sluice valves IS 2692-1989 Brass ferrule IS 458-2003 R.C.C. pipes National building code for water supply, drainage and sanitation Part IX Plumbing services section 1 & 2. The installation shall also be in conformity with the bye-laws and a requirement of the local authority is so far as these become applicable to the installation. Where ever this specification calls for a higher standard of materials and/or workmanship then those required by any of the above regulations and standards, hen this specification shall take precedence over the said regulations and standards. Wherever drawings and specifications require something that may violate the regulations, the regulation shall govern.



4 PART 4: FIRE PROTECTION AND SPRINKLER SYSTEM

4.1 DESIGN CRITERIA:

The following standard, bye-law, manual have been followed in designing the Fire

Fighting System:-

a) Relevant IS Codes published by Bureau of Indian Standard.

b) National Building Code 2005 Part 4 for Fire Protection System.

c) IS 15105: 2002 Design and Installation of Fixed Automatic Sprinkler Fire Extinguishing

System– Code of Practice.

The following systems will be provided as part of the Firefighting:

Hydrant System ( External & Internal Hydrant)

Sprinkler system

Special Fire suppression system

Fire Extinguishers

4.2 SALIENT FEATURES OF THE PROJECT

Type of the Buildings -- Business Building (Office)

Max. Height of Building -- Approximate 33.70 meter

Categories as per NBC-2005 -- Group E, Sub Division E-1 (Business Building)

4.3 GENERAL

The following is the description of the fire protection system that will serve the building and

the basement area. The design shall confirm the requirement of NFPA and the local

authority. All hydraulic calculations shall be performed for this building using internationally

Recognized practices, guidelines and the above criteria. The building's fire protection

system will be a water based system. The entire area shall be protected by a combination

of wet sprinkler and standpipe systems and water curtains in the basement. The fire

protection system shall be fed from a combined domestic water and fire protection water

storage tank situated at Basement level. The size of this tank is specified within the public

health water storage section. A separate pump for standpipe and sprinkler system shall be

provided. The fire pump room shall comprise of two electric driven as duty pump, one diesel

engine as standby pump and one jockey pump as pressure maintenance pump as per

NBC. All fire pumps shall be UL Listed and FM approved as per NFPA 20 and is provided

with UL/FM dedicated controllers.

As per NBC-2005, Part-4 Fire and Life Safety, the building comes under Clause 3.1.6

Group E Business Building, Sub division E-1 above 30 mtr in height the Fire Protection as

per Table-23 shall consist of:-



FIRE PROTECTION PRESSURE REQUIREMENT

Parameter or Strategy Maximum Pressure Source

40 mm hose valves 4.5 bar (65 psi) NFPA

(Residual Pressure)

65 mm landing valves 6.9 bar (100 psi) NFPA

(Residual Pressure)

Sprinkler System 12.1 bar (175 psi) NFPA

Sprinkler and standpipe 24 bar (350 psi) NFPA

System (Working Pressure)

Sr.No. TYPE OF INSTALLATION REQUIREMENT

1. Fire Extinguisher Required

2. Hose Reel Required

3. Dry Riser Not Required

4. Wet Riser (Internal Hydrant System) Required

5. Down Comer Not Required

6. Yard Hydrant (External Hydrant System) Required

7. Automatic Sprinkler System Required

8. Manually Operated Electric Fire Alarm

System Required

9. Automatic Detection & Alarm system Required

10. Underground static water storage tank Required 2, 00,000 lts.

11. Terrace tank Required 20,000 lts

12. Underground Fire Pumps

2 Electric & 1 Diesel Pump of

capacity 2850 LPM, 1 Electric

Water Curtain Pump1620

LPM and 2 jockey pump of

capacity 180 LPM

13. Terrace Pump Not Required



4.3.1 Basis of Design

The fire suppression system will be hydraulically calculated based on the available water

supply and the requirements of NFPA. Pressure reducing valves will be provided when

pressure exceeds the following thresholds:

Annexures for Fire Protection and Sprinkler System:

Sr.

No. Description Annexure No.

1. Fire Fighting Pump and Equipment Details as per

NBC 2005 Part 4 Annexure-F-1

2. Fire Fighting Pumping Head Calculation Annexure-F-1(A)

3. Friction loss calculation in pipe & Fittings Annexure-F-1(B)

4. Curtain Nozzle pump Flow, Pumping Head

Calculation Annexure-F-2

5.

Detail of suction header, individual suction pipe,

delivery header, individual delivery pipe for

firefighting pumps

Annexure-F-3

4.3.2 SYSTEM DESCRIPTION:

The Fire Fighting System shall consist of Jockey pump, Electrical Driven Fire Hydrant

Pump, Sprinkler Pump and Common Diesel Pump for Sprinkler & Fire hydrant (Internal

& External) System, Air vessel, associated instruments, cabling, piping, valves, control

panel etc. has been provided as per NBC 2005 Part IV requirement. Jockey pump shall

maintain all water lines for Hydrants & Sprinklers fully charged under pressure for full

Automatic operation in case of fire.

4.3.3 YARD HYDRANT & INTERNAL HYDRANT (WET RISERS):

The Yard hydrant shall cover the entire building externally with Hydrant points (yard

hydrant) at appropriate location with hose boxes, hoses etc. These yard Hydrants will be

fed from an external ring. The internal hydrant system comprising of 1 No. Fire Hose

Reel Drum with rubber hose and nozzle, 2 Nos. single outlet landing valves, 4 lengths of

15 m long, 63 mm dia hose with male and female coupling, branch pipe and Fireman’s

Axe.

4.3.4 FIRE WATER SOURCE:

Two Nos. underground RCC water storage tanks each of 100 M3 capacity has been

created in the Basement. A pump house adjacent to the fire storage tank where

various fire water pumps and associated equipment’s would be located & 20M3

overhead tank shall be provided at terrace.



4.3.5 PRESSURISATION SYSTEM:

This system shall comprise of one Nos. Electric Motor Driven Jockey Pumps,

pressure vessel.

The hydrant / Sprinkler system shall be kept pressurised all the times. The jockey

pump shall start automatically upon getting impulse from pressure switch of the

pressure vessel. The pump shall stop automatically. The jockey pump shall take care

of the leakages in the system, pipe lines, valves etc.

4.3.6 MODE OF OPERATION:

a) In the event of fire, when one or more valves are opened, the water from the jockey

pump will compensate water demand. If the water demand is not able to be met by

above, the relevant pressure fall in the header shall start the AC Motor driven fire

pump through pressure switches, automatically. In case of failure of electricity or

failure of pump to start or the pump not meeting the required water demand, the

standby diesel pump set shall start automatically. However, shutting down of the

pumps shall be manual except for the jockey pump, which shall start & stop

automatically through pressure switches.

b) The setting of the pressure switches shall be adjustable so that any desirable

sequence of starting may be achieved at site.

c) In addition to auto start arrangements, the main pump shall also have an overriding

manual starting facility by push button arrangement in case of an emergency.

4.3.7 FIRE BRIGADE INLET CONNECTIONS:

Fire brigade inlet connection shall be of Stainless Steel with four way 63 mm dia

instantaneous type inlets with leak proof built in type check valves and 150 mm dia

flanged outlet connections feeding to the External Fire ring/Internal Hydrant Header

and underground Fire water storage tank. The collecting head shall conform to IS-

904.

4.3.8 PRESSURE VESSEL:

To compensate for slight losses of pressure in the system and to provide an air

cushion for counteracting pressure surges/water hammer in the pipe work air vessel

conforming to IS: 3844 shall be furnished in the pump room near fire pump. The air

vessel shall normally be half full with water and remaining filled with air, which shall be

under compression when the system is in normal operation.

4.3.9 HAND APPLIANCES:

For incipient fire protection, portable fire extinguishers are distributed in areas in

accordance to NFPA 10 and relevant classifications and ratings.



Fire extinguishers shall also be provided on electrical and telephone areas at each

floor and trolley mounted CO2 fire extinguisher on Transformer/Substation Room as

required.

All portable fire extinguishers shall be listed.

4.3.10 SPRINKLER SYSTEM:

Automatic sprinklers shall be installed and positioned to fully protect the premises in

accordance with NFPA 13. Fire protection system in each zone is designed to provide

the following hydraulic design criteria

Maximum area of protection of one zone shall be 4,831 sq.m as per NFPA 13. Each sprinkler

zone will be provided with a floor control assembly which consists of main shut off valve, check

valve, tamper switch, flow switch, pressure gauge , flow test valve, sight glass, orifice union and

drain vale. All flow and tamper switch will be connected to the building fire alarm system using

addressable points enabling the system to provide a location of trouble spot. Adjacent to each

sprinkler riser will be main drain riser that will serve as the drain for testing and/or maintenance

of sprinkler system. Sprinklers for light hazard occupancies shall be quick response recessed,

semi-recessed or pendant type and standard response for ordinary hazard occupancies.

SPRINKLER SYSTEM DESIGN CRITERIA

Parameter or Strategy Design Density Area of sprinkler Source

Operation

Light Hazard 4.1 lpm/sq.m 139 sq.m NFPA

Ordinary Group I 6.1 lpm/sq.m 139 sq.m NFPA

Ordinary Group II 8.1 lpm/sq.m 139 sq.m NFPA

Extra Group I 12.2 lpm/sq.m 232 sq.m NFPA

Extra Group II 16.3 lpm/sq.m 232 sq.m NFPA



Type of sprinkler heads to be used:-

4.3.11 Special Fire Suppression System

Areas such as main telephone and electrical rooms do not require sprinklers. Hence,

special fire suppression systems shall be provided and shall be designed in

accordance with NFPA 13, "Standard for the Installation of Sprinkler System", NFPA

2001 "Standard on Clean Agent Fire Extinguishing System and NFPA 16 "Standard

for The Installation of Foam-Water Sprinkler and Foam-Water Spray System". These

are listed below:

Clean agent suppression for the main telephone and LV rooms.

Foam sprinkler system for generator room.

TYPES OF SPRINKLER HEAD



4.3.12 MATERIAL OF CONSTRUCTION (MOC) FIRE PROTECTION WORK:

Sr.

No. Description of Services

Material of

Construction

(MOC) Proposed

IS Code

1 Internal / External Fire Hydrant System & Automatic Sprinkler System:

a) Pipe up to 150 mm diameter M S Class ‘C’ IS:1239 (Part I)

b) Pipe above 150 mm diameter M S (6 mm Thick) IS:3589

Fittings :

i) Up to 50 mm diameter Forged Screwed

Fittings

ii) 65 mm diameter & Above any up to 150

mm diameter

Butt Welded IS : 1239

iii) Above 150 mm diameter Mitre fittings from

parent pipe

2 Hydrant Valve/ Landing Valve Stainless Steel IS : 5290 1983

(Type ‘A’)

3 Non Percolating Flexible Hose RRL IS : 636 Type A.

4 Male & Female Instantaneous Type

Coupling

Stainless Steel IS : 903

5 Branch Pipe Nozzle Stainless Steel IS : 903

6 Butterfly Valve CI IS : 13095

7 Swing Check Valve CI IS : 5312 Part –

I

8 Air Release Valve CI

9 Pressure Gauge Stainless Steel

10 Orifice Plates SS 304

11 Installation Control Valve Cast Iron IS-210 Grade

FG200

12 Quartzoid Bulb Type Sprinkler Head Stainless Steel UL/FM

Approved

13 Two Way / Four Way Fire Brigade Inlet

Connection

Stainless Steel IS: 904

14 Fire Brigade Suction Hose Coupling Stainless Steel IS: 904

15 Diesel Pump Exhaust Pipe MS Class ‘C’ IS: 1239

16 Fire Hose Cabinet (FHC) 16 SWG Powder

Coated M S Sheet



ANNEXURE-F-1

SCHEDULE OF FIRE FIGHTING PUMPS (FIRE PUMP ROOM)

Sr.

No. Description of Pump

Flow

Rate

Pumping

Head Qty.

Motor

KW

Total

Motor

KW

Location

A] FIRE FIGHTING PUMPS LOCATED AT FIRE PUMP ROOM (AT BASEMENT)

1 Electrical Driven Hydrant

Pump [HP]

2850

LPM

85 M 1 No. 80Kw 80 Kw Plant Room

2 Electrical Driven

Sprinkler Pump [SP]

2850

LPM 85 M 1 No. 80 Kw 80 Kw Plant Room

3 Diesel Driven Fire Pump

(DP)

2850

LPM

85 M 1 No. - - Plant Room

4 Electrical Driven Jockey

Pump (JP)

180

LPM 85 M 2 No. 5.5 Kw 11 Kw Plant Room

5 Electrical Driven Curtain

Nozzle Fire Pump (CP)

1620

LPM 25 M 1 No. 14 Kw 14 Kw Plant Room

Total 185 kw

Note:-

Diesel driven fire pump shall be common for hydrant & sprinkler system and work as standby.



ANNEXURE –F-1 (A)

FIRE FIGHTING PUMPING HEAD CALCULATION FOR FIRE FIGHTING PUMPS:

Height of Building from Ground Level to Terrace Tower = 33.70 m

Height between Basement where Pumps are located and natural Ground Level =4.6 m

Minimum pressure required at last landing valve = 3.5 Kg/Sq.cm = 35 m

Height of last landing valve from Terrace = 1.0 m

Friction losses in pipe & Fitting = 10 m [Refer Annexure –I (B) enclosed]

Pumping Head required = 33.70+4.6+35+1+ 10 = 84.3 M

Say = 85 M



ANNEXURE – F-1 (B)

FRICTION LOSSES IN PIPE & FITTING CALCULATION (HYDRANT& SPRINKLER

SYSTEM)

Size/dia. of main Hydrant & Sprinkler pipe size. = 150mm dia.

Flow Rate of Fire Fighting pump = 2850 LPM

Total Horizontal & Vertical length of Hydrant & Sprinkler pipe from fire pump room at basement to 7th Floor level = 33.70+ 4.6 +140 m =178.3 m ---------[a]

Equivalent length of Fitting & Accessories as 10% of [a] = 0.10 x 178.3 m =17.8m------------ [b] = 17.1m

a) Total Length of 150 mm dia. pipe = 178.3 + 17.8 m = 196.1 m SAY = 200 m b) Friction Pressure losses in pipe & fitting as per Hazen-William formula.

Where

P =Loss of pressure per meter Length of pipe (Bar)

Q =Flow rate through the pipe in (LPM) = 2850 LPM

d =mean bore of pipe (in mm) = 150 mm

C =A constant for the type and condition of pipe = Considered 120 mm for Mild Steel L=Equivalent length of Pipe &Fitting in (m) = 1m

Putting the values in above formula P = 6.05 x 105_x 1x (2850)1.85

(120)1.85 x (150) 4.87

= 605000 x 1x 2462991.942 7022.395 x 3.95 x 1010 = 0.005372 bar

Loss of pressure for 200 m length P = 0.005372 X 200m = 1.074 bar = 1.0 bar

P= 6.05 x 105x L x Q1.85 C1.85 x d4.87

Friction Pressure Losses in pipe & fitting calculated = 1.07 bar = 10 m



ANNEXURE-F-2

CURTAIN NOZZLE PUMP FLOW, PUMPING HEAD CALCULATION

Total Length of Pipe Network = 110 m

Spacing between Open Nozzles = 2.0 m C/C [Nozzle Manufacturer recommends 2.0 m for better performance]

Nos. of Open Nozzles = 110 2.0

= 54 Nos.

Say = 54 Nos.

The flow through each nozzle is calculated by formula.

Qm = Km x Pm where Qm = Flow in lpm flowing through nozzle Km = Nozzle Factor = 23 P = Total Pressure in Bar at flow Q = 1.4 bar

Qm = 23 x 1.4 = 27.21 lpm

Total Flow rate required = 54 Nos. Nozzle x 27.21 lpm Flow on each nozzle.

= 1469 lpm

Say = 1620 lpm

Water curtain Pump capacity required = 1620 LPM = 97.2 m3/hour

Provided = 1620 LPM = 97.2 m3/hour

Capacity of Water Curtain System Pump = 97.2 m3/hour = 1620 LPM



PUMPING HEAD CALCULATION

Basement Height where curtain nozzle Pump to be installed (Static Head) = 4.6 M-----------------------(a)

Residential/Minimum pressure at farthest spray nozzle = 1.4 bar

= 14 m -------------------------- (b)

Friction Losses in Pipe & Fittings = 5.0 m -------------------------(c)

Pumping Head required = (a) + (b) + (c)

= 4.6 + 14 m + 5.0 m

= 23.6 m SAY = 25 m

SUMMARY

Flow rate/capacity of Electrical Driven Fire Pump = 1620 LPM

Pumping Head Provided = 25 m

Q Quantity of Pump = 1 No.

Pumping Head Provided = 25 m



ANNEXURE-F-3

DETAIL OF SUCTION HEADER, INDIVIDUAL SUCTION PIPE, DELIVERY HEADER,

INDIVIDUAL DELIVERY PIPE FOR FIRE FIGHTING PUMPS

Sr.No. Description Size/Dia Qty

1. Suction Header (Common for Hydrant/Sprinkler, Diesel Driven Fire Pump, Jockey Pump & water Curtain pump)

350 mm dia 1 No.

2. Individual Suction Pipe (Suction Pipe for each of main Pumps)

200 mm dia 3

Nos.

3. Delivery Header 250 mm dia 1 No.

4. Delivery Pipe for Each of Main Pumps 150 mm dia 3

Nos.

5. Jockey Pump Suction Pipe 50 mm dia 2 Nos

6. Jockey Pump Delivery Pipe 40 mm dia 2

Nos.

7. Water Curtain Pump Suction Pipe 150 mm dia 1 Nos

8. Water Curtain Pump Delivery Pipe 150 mm dia 1

Nos.

A) SUCTION HEADER SIZE: SUCTION HEADER:

Quantity of Pumps = 3 Nos. (Main Fire Pump + Diesel Driven Fire Pump + Sprinkler Fire Pump)

Flow rate of each pump = 2850 LPM = 171 m3/hour.

Q1 = 0.0475 m3/sec.

Total Flow = 3 Nos. x 0.0475 m3/sec

Q = 0.143 m3/sec

Velocity considered at suction side

V = 90 m/minute = 1.5 m/sec



We know that

Q = A x V

0.143 = d2 x 1.5 4

d = 5.114.3

143.04

x

x

= 0.348 mm = 348 mm

Say = 350 mm dia. SUCTION PIPE FOR EACH OF MAIN PUMPS:

d = 5.114.3

4

x

xQ

= 5.114.3

0475.04

x

x

= 0.200 m = 200 m Say =200 mm dia.

DELIVERY HEADER:

Quantity of Pumps = 3 Nos.

Flow rate of each pump = 2850 LPM = 171 m3/hour.

Q1 = 0.0475 m3/sec.

Total Flow = 3 Nos. x 0.0475 m3/sec

Q1 = 0.143 m3/sec

Velocity considered at delivery side

V = 180 m/minute = 3.0 m/sec

We know that Q = A x V

Suction Header provided = 350 mm dia.

Suction Pipe for individual pump provided = 200 mm dia. .



0.143 = d2 x 3.0 4

d = 0.314.3

143.04

x

x

= 0.246 m = 246 mm

Say = 250 mm dia.

DELIVERY PIPE FOR EACH OF MAIN PUMPS:

d = 0.214.3

14

x

xQ

= 0.314.3

0475.04

x

x

= 0.142 m = 142 mm Say = 150 mm

JOCKEY PUMP SUCTION/DELIVERY SIDE:

Flow rate of Jockey pump = 180 LPM = 10.8 m3/hour.

Q = 0.003 m3/sec.


V = 1.5 m/sec


0.003 = d2 x 1.5 4

Delivery Header provided = 250 mm dia

Delivery Pipe provided= 150 mm dia.



d = 5.114.3

003.04

x

x

= 0.0504 m = 50.475 mm

Say = 50 mm dia.


V = 3.0 m/sec

d1 = 0.314.3

003.04

x

x

= 0.035 mtr = 35 mm dia.

Say = 40 mm .

Suction Pipe Size provided = 50 mm dia.

.

Delivery Pipe Size provided = 40 mm dia.

.



WATER CURTAIN PUMP SUCTION/DELIVERY SIDE:

Flow rate of Jockey pump = 1620 LPM = 97.2 m3/hour.

Q = 0.027 m3/sec.


V = 1.5 m/sec


0.027 = d2 x 1.5 4

d = 5.114.3

027.04

x

x

= 0.151 m = 150 mm

Say = 150 mm dia.


V = 3.0 m/sec

d1 = 0.314.3

027.04

x

x

= 0.107 meter = 107 mm dia.

Say = 150 mm

Suction Pipe Size provided = 150 mm dia. .

Delivery Pipe Size provided = 150 mm dia dia. .



IMPORTANT INDIAN STANDARDS FOR FIRE FIGHTING WORK

IS 1239-2004 (Part-I) Specifications for mild steel tube, tubular and other steel pipe fittings.

IS 1239-2004 (Part-II) Specifications for mild steel tube, tubular and other steel pipe fittings.

IS 1536-2001 Specification for centrifugally Cast (Spun) Iron pressure pipes with

flanges for water, gas and sewage. IS 1538 (Part 1 to 23) Specification for Cast Iron fittings for pressure pipes for water, gas and

sewage. IS 1726-1991 Code for cast iron manhole frame and cover. IS 3589-2001 Specification for electrically welded steel pipes for water, gas and

sewage. IS 4736-1986 Galvanizing G.I. Pipes IS 636-1988 Non percolating flexible Fire Fighting delivery hose (third revision) IS 694-2010 PVC insulated cables for working voltages upto and including 1.100

volts (third revision) IS 778-1984 Copper alloy gate, globe and check valves for water works purposes

(fourth revision) (Amendment 2) IS 780-2000 Sluice valves for water works purposes (50 to 300 mm) size (sixth

revision) (amendment 3) IS 884-1985 Specification for first-aid hose-reel for Fire Fighting (for fixed

installations) (first revision) (with amendment No.1) IS 900-1992 Code of practice for installation and maintenance of induction motors

(second revision) IS 901-1988 Specification for couplings, double male and double female,

instantaneous pattern for Fire Fighting (third revision) IS 902-1992 Suction hose coupling for Fire Fighting of purposes (third revision) IS 903-1993

Specification of fire hose delivery couplings branch pipe, nozzles and nozzle spanner (third revision) (Amendment 5)

IS 937-1981 Specification for washers for water fittings for Fire Fighting purposes

(revised) (with amendment No, 1)



IS 1520-1993 Horizontal centrifugal pumps for clear cold, fresh water (second revision)

IS 1536-2001 Horizontally cast iron pressure pipes for water, gas & sewage (first revision) (with Amendments No. 1 to 4)

IS 1554-1988 Part I PVC insulated (heavy duty) electric cables (working voltage up to and

including 1100 volts (third revision) IS 1554-1988 Part II PVC insulated (heavy duty) electric cables (working voltage from 3.3

KV up to and including 11 KV (second revision) IS 1648-1961 Code of practice for fire safety of buildings (General) Fire Fighting

equipment and its maintenance (with amendment No.1) IS 3624-1987 Pressure and vacuum gauges (Second revision) IS 4736-1986 Hot-dip zinc coatings on steel tubes (with Amendment No.1) IS 5290-1993 Specification for landing valves (second revision) (with Amendments

No.6) IS 5312- 2004 Part I Swing check type reflux (non-return) valves Part I-single door pattern

(with amendments nos. 1 & 2) IS 5312- 2004 Part II Swing check type reflux (non-return) valves Part II-Multi

door pattern (with amendments nos. 1 & 2) IS 7285

Seamless cylinders for storage of gas at high pressure.

IS 2189-2008 Code of practice for Automatic Fire alarm system IS 2195-1964 Specification for heat sensitive fire detectors IS 732-1989 Code of practice for electrical wiring installation

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