260 likes | 565 Views
Automatic Sprinkler Systems. Chapter 13. 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. Automatic Sprinkler System.
E N D
Automatic Sprinkler Systems Chapter 13 Ricky Phillips, Instructor
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
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
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
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
NFPA 13D • Standard for the Installation of Sprinkler Systems in One and Two Family Dwellings and Mobile Homes Ricky Phillips, Instructor
FM or UL Listings • All parts of system regulated by • Factory Mutual • Underwriters Laboratories Ricky Phillips, Instructor
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 Ricky Phillips, Instructor
System Fundamentals • Sprinklers • Sprinkler Design • Sprinkler Storage • Control Valves • Water Flow Alarms • Water Supply • Fire Department Connection Ricky Phillips, Instructor
Sprinklers • Discharge water • Fusible Link • Glass Bulb • Chemical Pellet • Quick Response Ricky Phillips, Instructor
Sprinkler Design • Pendant • Upright • Sidewall • Special Sprinklers Ricky Phillips, Instructor
Sprinkler Storage • Storage Cabinet • extra heads • sprinkler wrench • Changing sprinkler heads should only be performed by representatives of the building’s occupants. Ricky Phillips, Instructor
Control Valves • OS&Y Valve • Post Indicator Valve (PIV) • Post Indicator Valve Assembly (PIVA) • Operating Valves Ricky Phillips, Instructor
Waterflow Alarms • Hydraulic or electrical • warn of water movement in system • Hydraulic alarm sounds local • Electrical alarm sounds local and fire alarm system Ricky Phillips, Instructor
Water Supply Ricky Phillips, Instructor
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. Ricky Phillips, Instructor
Types of Systems • Wet-Pipe • Dry-Pipe • Pre-Action • Deluge • Residential Ricky Phillips, Instructor
Wet-Pipe System Ricky Phillips, Instructor
Dry-Pipe System Ricky Phillips, Instructor
Deluge System Ricky Phillips, Instructor
Pre-Action System Ricky Phillips, Instructor
Residential System Ricky Phillips, Instructor
Factors & Considerations Ricky Phillips, Instructor
Controlling Water Flow from a Sprinkler Head Ricky Phillips, Instructor