ricky phillips, instructor1 automatic sprinkler systems chapter 13
TRANSCRIPT
Ricky Phillips, Instructor 2
Automatic Sprinkler Systems
Most reliable fixed extinguishing system No reported multiple deaths in a
completely sprinkled building Controls 70% of all fires with five or
fewer sprinklers activated
Ricky Phillips, Instructor 3
Automatic Sprinkler System
Consist of sprinkler heads– arranged to automatically distribute water
directly to the fire Water supplied through a system of
piping
Ricky Phillips, Instructor 4
Two types of Sprinkler Coverage
Complete Sprinkler Coverage– protects the entire building
Partial Sprinkler Coverage– protects only certain areas
• high hazards, exit routes, places required by code or AHJ
Ricky Phillips, Instructor 5
NFPA 13
Standard for the Installation of Sprinkler Systems
Requirements on spacing, pipe size, and all details concerning the installation of sprinkler systems
Ricky Phillips, Instructor 6
NFPA 13D
Standard for the Installation of Sprinkler Systems in One and Two Family Dwellings and Mobile Homes
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FM or UL Listings
All parts of system regulated by – Factory Mutual– Underwriters Laboratories
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Effects on Life Safety
Life Safety is enhanced– fire is extinguished will small
Combustion products are limited– extinguishment in incipient stage
Presence is crucial in high-rise buildings
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System Fundamentals
Sprinklers Sprinkler Design Sprinkler Storage Control Valves Water Flow Alarms Water Supply Fire Department Connection
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Sprinklers
Discharge water Fusible Link Glass Bulb Chemical Pellet Quick Response
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Sprinkler Storage
Storage Cabinet– extra heads– sprinkler wrench
Changing sprinkler heads should only be performed by representatives of the building’s occupants.
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Control Valves
OS&Y Valve Post Indicator Valve (PIV) Post Indicator Valve Assembly (PIVA) Operating Valves
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Waterflow Alarms
Hydraulic or electrical warn of water movement in system Hydraulic alarm sounds local Electrical alarm sounds local and fire
alarm system
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Fire Department Connection
Provides outside source of water supply Consists of at least two 2-1/2” female
connections or one LDH connection Supplied by pumper with minimum
1,000 gpm pump or greater Minimum of two 2-1/2” lines PDP of 150 psi.