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Updates to NFPA 13

Updates to NFPA 13. What’s New in the 2013 Edition Kenneth E. Isman, P.E., F.S.F.P.E. For the European Fire Sprinkler Network’s Fire Sprinkler International Conference May 21, 2014. Sprinkler System Definition.

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Updates to NFPA 13

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  1. Updates to NFPA 13 What’s New in the 2013 Edition Kenneth E. Isman, P.E., F.S.F.P.E. For the European Fire Sprinkler Network’s Fire Sprinkler International Conference May 21, 2014

  2. Sprinkler System Definition 3.3.18 An integrated network of piping designed in accordance with fire protection engineering standards that includes a water supply source, a water control valve, a water flow alarm, and a drain . . .

  3. Floor Control 8.16.1.5.3 requires a floor control valve, check valve, main drain, and flow switch for each floor of a building Exception for buildings where the total area of all floors combined does not exceed: • 4831 m2 (52,000 ft2) for light and ordinary hazard • 3716 m2 (40,000 ft2) for extra hazard and high-piled storage

  4. Re-Inserting Used Sprinklers • Once a sprinkler has been removed, it must be replaced

  5. Antifreeze • Any new systems will have to use a listed fluid • As of right now, there are no listed fluids

  6. Soffits No sprinkler required underneath (8.6, 8.8 and 8.10) ½ S 18 inch minimum No maximum 24 inch max

  7. Dry Sprinklers • Need minimum space for the barrel in a heated space

  8. Dry Sprinklers

  9. HVLS Fans • Criteria added for fans up to 24 ft in diameter • Center the fans between 4 sprinklers • Keep the fan 36 inches below the sprinklers • Shut down the fan within 90 seconds of waterflow

  10. Encapsulated Storage • Discharge criteria for palletized and solid piled storage over 15 ft up to 20 ft • Class I – 18.7 mm/min over 186m2 (0.46 gpm per ft2 over 2000 ft2) • Class II – 21.7 mm/min over 186m2 (0.53 gpm per ft2 over 2000 ft2) • Class III and Class IV – 24.5 mm/min over 186m2 (0.6 gpm per ft2 over 2000 ft2)

  11. Solid Shelves and ESFR Sprinklers • In 2010 and previous editions, ESFR sprinklers have been prohibited for use to protect solid shelves • 2013 edition will allow solid shelves with ESFR if in-rack sprinklers are installed below every horizontal barrier or shelf below the ESFR sprinklers

  12. Open Top Containers • Criteria in the standard does not apply to protection of open top containers • Open tops collect water, which does not get down to control the fire • Open top containers can be used at the bottom tier of storage • Otherwise, protection is outside the scope of the standard

  13. Exposed Unexpanded Plastics on Racks • The criteria in the standard for protection of plastics under 25 ft has never been for exposed plastics • New rules for standard proposed from old FM rules

  14. C-Factor for Galvanized Pipe • Use C=100 for all steel pipe in dry-pipe systems, regardless of whether the pipe is galvanized

  15. Recycled or Reclaimed Water • Collected rainwater is okay for sprinkler systems (like using ponds or rivers) • But recycled and reclaimed water could be a problem • Need to know what’s in the water • Could be combustible • Could have something that reacts with sprinkler components or gums up the works

  16. Thank You!

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