Page 177 - 2018_IFC

FIRE PROTECTION AND LIFE SAFETY SYSTEMS

2. Sprinkler protection for the mall of a covered mall tion 711 of the International Building Code, or
building shall be independent from that provided for both.
tenant spaces or anchor buildings.
914.3.1.1 Number of sprinkler risers and system
3. Sprinkler protection for the tenant spaces of an open design. Each sprinkler system zone in buildings that
mall building shall be independent from that pro- are more than 420 feet (128 m) in height shall be sup-
vided for anchor buildings. plied by not fewer than two risers. Each riser shall sup-
4. Sprinkler protection shall be provided beneath exte- ply sprinklers on alternate floors. If more than two
rior circulation balconies located adjacent to an open risers are provided for a zone, sprinklers on adjacent
mall. floors shall not be supplied from the same riser.
5. Where tenant spaces are supplied by the same sys- 914.3.1.1.1 Riser location. Sprinkler risers shall be
tem, they shall be independently controlled. placed in interior exit stairways and ramps that are
Exception: An automatic sprinkler system shall not be remotely located in accordance with Section 1007.
required in spaces or areas of open parking garages sep- 914.3.1.2 Water supply to required fire pumps. In
arated from the covered or open mall in accordance buildings that are more than 420 feet (128 m) in build-
with Section 402.4.2.3 of the International Building
ing height, required fire pumps shall be supplied by
Code and constructed in accordance with Section 406.5 connections to not fewer than two water mains located
of the International Building Code.
in different streets. Separate supply piping shall be pro-
914.2.2 Standpipe system. The covered and open mall vided between each connection to the water main and
building shall be equipped throughout with a standpipe the pumps. Each connection and the supply piping
system as required by Section 905.3.3. between the connection and the pumps shall be sized to
914.2.3 Emergency voice/alarm communication sys- supply the flow and pressure required for the pumps to
tem. Where the total floor area exceeds 50,000 square feet operate.
2
(4645 m ) within either a covered mall building or within Exception: Two connections to the same main shall
the perimeter line of an open mall building, an emergency be permitted provided that the main is valved such
voice/alarm communication system shall be provided. that an interruption can be isolated so that the water
Access to emergency voice/alarm communication systems supply will continue without interruption through
serving a mall, required or otherwise, shall be provided for not fewer than one of the connections.
the fire department. The system shall be provided in accor- 914.3.2 Secondary water supply. An automatic second-
dance with Section 907.5.2.2.
ary on-site water supply having a capacity not less than the
914.2.4 Fire department access to equipment. Rooms or hydraulically calculated sprinkler demand, including the
areas containing controls for air-conditioning systems, hose stream requirement, shall be provided for high-rise
automatic fire-extinguishing systems, automatic sprinkler buildings assigned to Seismic Design Category C, D, E or
systems or other detection, suppression or control elements F as determined by the International Building Code. An
shall be identified for use by the fire department. additional fire pump shall not be required for the second-
914.3 High-rise buildings. High-rise buildings shall comply ary water supply unless needed to provide the minimum
with Sections 914.3.1 through 914.3.7. design intake pressure at the suction side of the fire pump
supplying the automatic sprinkler system. The secondary
914.3.1 Automatic sprinkler system. Buildings and water supply shall have a duration of not less than 30 min-
structures shall be equipped throughout with an automatic utes as determined by the occupancy hazard classification
sprinkler system in accordance with Section 903.3.1.1 and in accordance with NFPA 13.
a secondary water supply where required by Section
914.3.2. Exception: Existing buildings.
Exception: An automatic sprinkler system shall not be 914.3.3 Fire alarm system. A fire alarm system shall be
required in spaces or areas of: provided in accordance with Section 907.2.12.
1. Open parking garages in accordance with Section 914.3.4 Automatic smoke detection. Smoke detection
406.5 of the International Building Code. shall be provided in accordance with Section 907.2.12.1.
2. Telecommunications equipment buildings used 914.3.5 Emergency voice/alarm communication sys-
exclusively for telecommunications equipment, tem. An emergency voice/alarm communication system
associated electrical power distribution equip- shall be provided in accordance with Section 907.5.2.2.
ment, batteries and standby engines, provided
914.3.6 Emergency responder radio coverage. Emer-
that those spaces or areas are equipped through- gency responder radio coverage shall be provided in
out with an automatic fire detection system in
accordance with Section 510.
accordance with Section 907.2 and are separated
914.3.7 Fire command. A fire command center comply-
from the remainder of the building by not less
than 1-hour fire barriers constructed in accor- ing with Section 508 shall be provided in a location
approved by the fire department.
dance with Section 707 of the International
Building Code or not less than 2-hour horizontal 914.4 Atriums. Atriums shall comply with Sections 914.4.1
assemblies constructed in accordance with Sec- and 914.4.2.

144 2018 INTERNATIONAL FIRE CODE ®
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