Sprinkler Clearances

From Gvrahe

NFPA 13 Standard for the Installation of Sprinkler Systems 2002 Edition

8.5.6* Clearance to Storage. 8.5.6.1 Unless the requirements of 8.5.6.2, 8.5.6.3, 8.5.6.4, or 8.5.6.5 are met, the clearance between the deflector and the top of storage shall be 18 in. (457 mm) or greater. 8.5.6.2 Where other standards specify greater clearance to storage minimums, they shall be followed. 8.5.6.3 A minimum clearance to storage of 36 in. (0.91 m) shall be permitted for special sprinklers. 8.5.6.4 A minimum clearance to storage of less than 18 in. (457 mm) between the top of storage and ceiling sprinkler deflectors shall be permitted where proven by successful large-scale fire tests for the particular hazard. 8.5.6.5 The clearance from the top of storage to sprinkler deflectors shall be not less than 3 ft (0.9 m) where rubber tires are stored.

8.6.3.3 Minimum Distances from Walls. Sprinklers shall be located a minimum of 4 in. (102 mm) from a wall.

8.6.6* Clearance to Storage (Standard Pendent and Upright Spray Sprinklers). 8.6.6.1 The clearance between the deflector and the top of storage shall be 18 in. (457 mm) or greater. 8.6.6.2 Where other standards specify greater clearance to storage minimums, they shall be followed.

A.8.6.6 The 18-in. (457-mm) dimension is not intended to limit the height of shelving on a wall or shelving against a wall in accordance with 8.6.6. Where shelving is installed on a wall and is not directly below sprinklers, the shelves, including storage thereon, can extend above the level of a plane located 18 in. (457 mm) below ceiling sprinkler deflectors. Shelving, and any storage thereon, directly below the sprinklers cannot extend above a plane located 18 in. (457 mm) below the ceiling sprinkler deflectors.