Transcript N.F.P.A. 13R - Dutchess Community College

N.F.P.A.
13R
Justin Bohlmann
FIR-204
Table of Contents
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What is NFPA 13R?
Grandfather Clause
Identification
Types of Sprinkler Systems
– Wet-Pipe
– Dry and Pre-action
• Sprinkler Heads
– Upright
– Pendant
– Sidewall
• An Overview of The Sprinkler
System
• Rated Pressure
• Temperature
• The use of reconditioned
equipment
• Post Indicator Valve
• Protection from Hazards
• Working Plans
• Testing
• Water Supply
• Fire Department Connection
• Water Flow Alarms
• Where are Sprinklers Not
Needed?
• Maintenance
• Source Page
What is N.F.P.A 13R?
• This standard covers the design and
installation of Automatic Sprinkler Systems
in residential occupancies up to and
including four stories in height
Grandfather Clause
• 1.3 Retroactivity
– Unless otherwise specified, the provisions of
this standard shall not apply to facilities,
equipment, structures, or installations that
existed or were approved for construction or
installation prior to the effective date of the
standard
Identification
• Sprinkler Systems
• Control, Drain, and Test Valves
– Securing the Sign
– What needs to be on the sign
Types of Sprinkler Systems
• Wet Pipe
• Pre-action
• Dry Pipe
Wet Pipe
• May be used were piping is installed in
areas that can be reliably maintained at a
temperature above 40 degrees Fahrenheit
Dry and Pre-action
• These systems are used when piping
cannot be maintained at a temperature of
40 degrees Fahrenheit or greater
• Where these systems are installed they shall be
installed under N.F.P.A. 13 (The Standard for the
Installation of Sprinkler Systems )
Upright and Pendant
Sprinkler Heads
• Heads that have not been listed with specific
positioning criteria shall be positioned so that the
deflectors are within 1in.-4in from the ceiling
• Must be located 3 ft from obstructions
– Center of obstruction to the center of the head
– Where heads cannot be placed 3ft from an
obstruction they shall be placed at either side
of the obstruction
Sidewall Sprinkler Heads
• Sidewall heads shall be located so that
their deflectors are 4in.-6in. From the
ceiling
• Must be located 5 ft from obstructions
– Center of obstruction to the center of the head
– Where heads cannot be placed 5ft from an
obstruction they shall be placed at either side
of the obstruction
The Sprinkler System
Rated Pressure
• Manufacturers recommendations
for sprinkler heads
– Follow unless they are less than
• 175 psi for aboveground
• 150 psi for underground
• Piping
• 175 psi
• Fittings
• 175 psi
Temperature
• Sprinkler heads must be color coded in accordance with
Table 5.1.1.5.1
– Corrosion resistive heads
– Recessed, flushed, or concealed sprinklers
– Liquid in bulb-type sprinklers
Reconditioned Equipment
• Valves and Devices
• Sprinkler Heads
Post Indicator Valve
Protection
• Corrosion
• Freezing
• Hazardous Areas
Working Plans
• Must be approved by the AHJ
• Changes from original plan must also be
approved through the AHJ
• These plans must provide:
– Plan of each floor
– Easily duplicated
Working Plans
• Indicate:
– Name of owner and occupant
– Location
– Point of compass
– Ceiling construction
– Location of fire walls and partitions
– Occupancy
– Concealed spaces
Working Plans
• Indicate ( Con’t):
– Areas where there are no sprinklers
– Size of the city main
– Make and manufacture's of the sprinklers
– Number of sprinklers
– Location of alarm bells
– All control valves and connections
– Underground piping
– Name and address of contractor
Testing
• Installer must perform all required tests
prior to submitting request for approval
• The AHJ is required to be present during
the conduction of testing for approval
• Hydrostatic Pressure
Water Supply
• Every system must have at least one
automatic supply of water and it must be
able to supply a system demand for at
least 30 min.
• If a fire pump is installed it must be
installed under NFPA 20 The Standard for
the Installation of Stationary Pumps for
Fire Protection
Fire Department Connection
(FDC)
• At least one fire department connection
shall be provided for buildings that exceed
2000 square ft
• They must be:
– At least 1 ½ in orifice size
– Must be labeled for what building or area it
covers or protects
Sprinkler Head Specifications
• If a sprinkler is to be located in an area
with a temperature less than 100 degrees
Fahrenheit the head shall be an ordinary
temperature rated sprinkler
• If the temperature exceeds 101 degrees
Fahrenheit then an intermediate-rated
sprinkler must be used
Sprinkler Head Specifications
• Sprinklers located under direct sunlight or
in unventilated areas such as attics or
storage closets, shall be of an
intermediate temperature classification
Water Flow Alarms
• An alarm shall be installed to notify the
occupants of a water flow in the building
• If the building is maintained by an
Automatic Fire Detection System the water
flow alarm shall be connected to the
system
Where are Sprinklers not Needed?
• In Bathrooms which do not exceed 55ft
• In closets, and pantries under the following
conditions:
– The area does not exceed 24ft.
– The walls and ceilings are surfaced with
noncombustible or limited combustible
materials
• Porches, Balconies, or stairs that are open
and attached
Maintenance
• The owner shall be required for the
maintenance and the condition of the
sprinkler system and shall keep it in
normal condition
• Systems shall be inspected, tested, and
maintained under the direction of NFPA 25
The standard for the Inspection, Testing,
and Maintenance of Water-Based Fire
Protection Systems
Sources
• N.F.P.A 13R The Standard For The
Installation of Sprinkler Systems in
Residential Occupancies up to and
Including Four Stories in Height
• N.F.P.A. Handbook Sec. 10 Ch. 11 Pg. 185
Automatic Sprinkler Systems
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