MEPIC ENGINEERING DESIGN ASSOCIATES LLP.
DOC.: TI3-GD-FF-001
DESIGN BASIS
PROJECT : Lodging Facility for MumbaiAhmedabad High Speed Railway Project
REPORT
CUBE CONSTRUCTION ENGINEERING LTD.
REVISION.: R0
DATE: 21.03.2018
CONTENTS
1.
INTRODUCTION ..................................................................................................................................................2
2.
SCOPE ..................................................................................................................................................................2
3.
CODES & STANDARDS........................................................................................................................................2
4.
CLASSIFICATION OF BUILDINGS ......................................................................................................................3
5.
SYSTEM DESCRIPTION ......................................................................................................................................4
5.1
FIRE STORAGE ............................................................................................................................................4
5.2
HYDRANT DOWNCOMERS AND HOSE REEL SYSTEM ............................................................................4
5.3
AUTOMATIC SPRINKLER SYSTEMS ..........................................................................................................5
5.4
FLOW SWITCH ............................................................................................................................................5
5.5
FIRE STARATEGY FOR BUILDING. ............................................................................................................6
5.6
PORTABLE FIRE EXTINGUISHERS ............................................................................................................6
5.7
PIPING .........................................................................................................................................................6
5.8
PRESSURE REGULATING VALVE ..............................................................................................................6
6.
PRESSURE RANGE/DISTRIBUTION ........................................................................................................................7
7.
MATERIALS .........................................................................................................................................................7
1
MEPIC ENGINEERING DESIGN ASSOCIATES LLP.
DOC.: TI3-GD-FF-001
DESIGN BASIS
PROJECT : Lodging Facility for MumbaiAhmedabad High Speed Railway Project
REPORT
CUBE CONSTRUCTION ENGINEERING LTD.
1.
REVISION.: R0
DATE: 21.03.2018
INTRODUCTION
Water required for fire protection system shall be catered through a RCC Underground Domestic RawWater
Tank (UG) to Overhead fire water tank. It shall be pumped from Hydro pneumatic pumps which are placed
in the pump room. The water from UG tank shall be pumped to overhead fire water tank proposed at terrace
level.
2.
SCOPE
Following isthe scope of fire protection system:

Fire water storage OHD Tank on building

Fire Pumps at Terrace Level.

Yard Hydrants with stand post, hydrant valve, Fire brigade inlet

Fire extinguishers
3.
CODES & STANDARDS
Unless specifically mentioned otherwise, all the applicable codes and standards published by theBureau of
Indian Standards and their subsequent revision shall govern in respect of design, Workmanship, Quality and
properties of materials and method of testing.

National Building Code Sept 2016: Part IV for Fire Protection

Local Bye-Laws

Relevant BIS codes: Specifically IS: 3044, IS: 5290 and IS: 5312, IS: 908 and IS: 2190, IS: 3844, IS: 15105

Consultation with local Chief Fire Officer
2
MEPIC ENGINEERING DESIGN ASSOCIATES LLP.
DOC.: TI3-GD-FF-001
DESIGN BASIS
PROJECT : Lodging Facility for MumbaiAhmedabad High Speed Railway Project
REPORT
CUBE CONSTRUCTION ENGINEERING LTD.
4.
REVISION.: R0
DATE: 21.03.2018
CLASSIFICATION OF BUILDINGS
Buildings are classified as per NBC and group classification with respect to usage, occupancy and height.
BASED ON OCCUPANCY: (Section 4 NBC 2016)
A. High Speed Rail Training Institute: Group BEducational Building
- Fire Zone 1
According to NBC 2016, Part IV, Table 07, following provision shall be kept.
SYSTEMS
HEIGHT
OFBUILDING
EDUCATIONAL
(2)
BUILDING
TRAINING INSTITUTE.
Classification of building as per NBC
(Table 07)
15m and above but
not exceeding 24m in
height
Fire Extinguishers
R
Hose Reel
R
Wet Riser
NR
Down Comer
R
Yard Hydrant
NR
Automatic sprinkler system
R
Manually operated electric fire alarm
R
system
Automatic detection and alarm system
NR
Underground static storage tank -
NR
Overhead tank of ----- lit.
25,000
Fire Pumps at UG tank level
NR
At Terrace Tank Lvl with Minimum pressure
of 3.5kg/cm2
900 LPM Booster Pump Provided
3
(B),
MEPIC ENGINEERING DESIGN ASSOCIATES LLP.
DOC.: TI3-GD-FF-001
DESIGN BASIS
PROJECT : Lodging Facility for MumbaiAhmedabad High Speed Railway Project
REPORT
CUBE CONSTRUCTION ENGINEERING LTD.
5.
REVISION.: R0
DATE: 21.03.2018
SYSTEM DESCRIPTION
5.1 FIRE STORAGE
Fire pumps shall be Provided at Terrace level 900LPM Booster pump for down comers of firefighting.
Internal hydrant will protect the building internally. Yard hydrants shall also be provided. The capacities of
OHT are designed as per NBC which are listed below building wise.
(As per Table 07 National Building Code 2016 Section 4)
BUILDING
High Speed Rail Training Institute
UNDER GROUND
TANK CAPACITY,
mtr3
Not Required
OVERHEAD
mtr3
TANK
CAPACITY,
15,000 Litre X 02Nos.
As per NBC Under Ground firestorage tank for Fire Protection System has been not Required. Fire
department connection shall also be provided at location of easily excess from Road Side. These shall
comprise of Nos. 63 mm dia. male outlets capable of directly feeding the overhead Fire water tank through
non return valves. These shall be mounted in specially identified boxes.
5.2 HYDRANT DOWNCOMERS AND HOSE REEL SYSTEM
Hydrant riser shall be not required as per NBC 2016. Hydrant Down comer provided at all the building floor
staircase landing or 30m distance which is easier to excess. Each Hydrant Down comers shall be covered
1000Sq.m area. Water supply to the hydrant down comers shall be fed directly from the motor driven
900lpm fire pump. This system shall consist of single hydrant outlet landing valve installed at a height of
1000 mm above finished floor level and a separate tap off for hose reel associated with hoses, branch pipe
and nozzles for each floor of the building on each riser. The system shall be designed hydraulically to meet
the flow and pressure requirement as per NBC. Hydrant accessories such as hose reel, branch pipe and
nozzles etc., shall be provided in separate enclosures/cabinet with glass panels. For High Speed Rail
4
MEPIC ENGINEERING DESIGN ASSOCIATES LLP.
DOC.: TI3-GD-FF-001
DESIGN BASIS
PROJECT : Lodging Facility for MumbaiAhmedabad High Speed Railway Project
REPORT
CUBE CONSTRUCTION ENGINEERING LTD.
REVISION.: R0
DATE: 21.03.2018
Training Institute 6 (Six) Down comers and Hose reel Provided per Floor as per NBC 2016.
In the event of fire, if the hydrant or hose reel are opened, the pressure in the hydrant main will drop due to
the resulting flow, thereby the Booster pump comes in operation.
5.3 AUTOMATIC SPRINKLER SYSTEMS
Sprinkler heads shall be made of brass bulb sufficiently strong, in compression to withstand any pressure,
surge or hammer likely to occur in the system. The yoke & body shall be made of high quality SS / gun metal
brass with arms streamlined to ensure minimum interference with the spread of water. The deflector of
suitable design shall be fitted to give even distribution of water over the area commanded by the sprinkler.
The sprinklers shall have 15 mm nominal size of the orifice for ordinary hazard. The orifice size shall be
marked on the body or the deflector of the sprinkler. Metal guards for protection of sprinkler against
accidental or mechanical damage shall be provided.
SPRINKLER INSTALLATION
For High Speed Rail Training Institute, Sprinklers are not required as per NBC 2016.
5.4 FLOW SWITCH
Flow switch shall have a paddle made of flexible and sturdy material of the width to fit within the pipe bore.
The terminal box shall be mounted over the paddle/ pipe through a connecting socket. The Switch shall be
potential free in either NO or NC position as required. The switch shall be able to trip and make / break
contact on the operation of a single sprinkler head. The terminal box shall have connections for wiring to
the Annunciation Panel. The flow switch shall have connections for wiring the seat shall be of S.S to the
Annunciation Panel. The flow switch shall have IP: 55 protections.
The flow switches work at a triggering threshold band with (flow rate) of 4 to 10 GPM. Further, it shall have
a ‘Retard’ to compensate for line leakage or intermittent flows.
5
MEPIC ENGINEERING DESIGN ASSOCIATES LLP.
DOC.: TI3-GD-FF-001
DESIGN BASIS
PROJECT : Lodging Facility for MumbaiAhmedabad High Speed Railway Project
REPORT
CUBE CONSTRUCTION ENGINEERING LTD.
REVISION.: R0
DATE: 21.03.2018
5.5 FIRE STARATEGY FOR BUILDING.
Separately, Underground Storage for fire not Required as per NBC 2016. Domestic raw water capacity
provided 70,000 liter. Suction from domestic UGT to fire OHT filling through HPN System provided at pump
room.
To keep the fire water from stagnating a return line has been provided from OH fire tank to UG water
domestic tank. This Line fitted with a timer based Solenoid valve which will be set to operate for about 30
minutes and drain the fire tank, which will concurrently be filled by Hydro-pneumatic system. After this
pre-set time interval the solenoid will de-energies and the water circulation in tank will stop.
5.6 PORTABLE FIRE EXTINGUISHERS
Portable fire extinguishers of 4.5 Kg Co2 and 6 kg DCP shall be provided as first aid fire extinguishing
appliances. These extinguishers shall be suitably distributed in the entire public as well as service areas.
Further, for rooms containing electrical transformers, switchgears, motors and of electrical apparatus,
minimum 2 Nos. dry powder or carbon dioxide type/sand buckets extinguishers shall be additionally
provided within 15 m of the apparatus.
5.7 PIPING
Mild steel pipes (heavy class) as per IS: 1239 shall be provided throughout the Complex. Pipes buried below
ground shall be suitably covered with bituminous 4mm thick wrapping material as per IS 10221: 2008.All
pipe clamps and supports shall be fabricated from MS steel sections and shall be duly painted with primer
before use at site. Pipes shall be hung by means of expandable anchor fastener of approved make and
design. The hangers and clamps shall be fastened by means of mild steel nuts and bolts. The size/diameter
of the anchor fastener and the clamps shall be suitable to carry the weight of water filled pipe and dead load
normally encountered.
5.8 PRESSURE REGULATING VALVES
For restricting pressure at lower levels in the sprinkler systems, PRV’s of appropriate sizes shall be fitted at
different floor levels at the branching points from riser main.
6
MEPIC ENGINEERING DESIGN ASSOCIATES LLP.
DOC.: TI3-GD-FF-001
DESIGN BASIS
PROJECT : Lodging Facility for MumbaiAhmedabad High Speed Railway Project
REPORT
CUBE CONSTRUCTION ENGINEERING LTD.
REVISION.: R0
DATE: 21.03.2018
6. PRESSURE RANGE/DISTRIBUTION
Hydrant mains shall be such that there is a residual pressure of at least 3.5 kg / cm2 at the hydraulically
farthest end. PRV’s shall limit the residual pressure in the hydrant outlets to within 7.0 kg/cm2 to avoid the
excessive reaction thrust.
7. MATERIALS
 Underground Pipes: G.I. “C” (heavy) class with 4 mm thick wrapping and conforming to IS: 10221.
 Over ground Pipes: Upto and including 100 mm NB shall confirm to IS: 1239 G.I. C (heavy) class and
above confirming to IS: 3589 (min. wall thickness 6 mm).
 Centrifugal Pumps with positive suction type Fire Pumps.
 Hydrant Valves – 63 mm Gun Metal confirming to IS: 5290 type A
 Isolating Valves: in suction side of pumps Cast Iron rising stem gate valves confirming to IS: 14846.
All others will be wafer pattern butter fly valves of C.I. construction.
 Hose pipe 63 mm Reinforced Rubber lining with gun metal instantaneous coupling duly bound at
either end confirming to IS: 636.
 Single headed Hydrant with brass connections with hose box & hose reel.
7