13–46
INSTALLATION OF SPRINKLER SYSTEMS
8.1.2* System valves and gauges shall be accessible for opera-
8.3.1.5.2* Protective caps and straps shall be removed from all
tion, inspection, tests, and maintenance maintenance..
sprinkler sprink lerss pri prior or to th thee tim timee wh when en th thee spr sprink inkler ler sys system tem is placed in service.
8.2 System Protection Protection Area Area Limitations. 8.2.1 The maximum maximum floor floor area on any one floor to be pro-
tected by sprinklers supplied by any one sprinkler system riser or combined system riser shall be as follows: (1) Light hazard — 52,000 ft ft 2 (4831 m2) (2) Ordinary hazard — 52,000 ft 2 (4831 m2) (3) Extra hazard (a) Pipe schedule — 25,000 ft ft 2 (2323 m2) (b) Hydraulically calculated calculated — 40,000 ft 2 (3716 m2) (4) Sto Storag ragee — Hig High-p h-pile iled d sto storag ragee (as def define ined d in 3.9 3.9.1. .1.17) 17) and storage covered by other NFPA standards — 40,000 ft 2 (3716 m2) 8.2.2 The floor floor area occu occupied pied by mezzanines mezzanines shall not be
included in the area limits of 8.2.1. 8.2.3 Where single systems protect protect extra hazard, high-piled
storage, or storage covered by other NFPA standards, and ordinary or light hazard areas, the extra hazard or storage area coverage shall not exceed the floor area specified for that hazard and the total area coverage shall not exceed 52,000 ft 2 (4831 m2). Multiple Multip le bui buildi ldings ngs att attach ached ed by can canopi opies, es, cov covere ered d breezeways, common roofs, or a common wall(s) shall be permitted to be supplied by a single fire sprinkler riser. riser. The maximum system size shall comply with 8.2.1. 8.2.4
8.2.5* Detached 8.2.5* Detached Buildings. 8.2.5.1 Unless the requirements requirements of 8.2.5.2 apply, detached
buildings, regardless of separation distance, that do not meet the criteria of 8.2.4 shall be provided with separate fire sprinkler systems. 8.2.5.2 When acceptable to the authority authority having jurisdiction, jurisdiction,
detached structures shall be permitted to be supplied by the fire sprinkler system of an adjacent building. 8.3 Use of Sprinklers. 8.3.1 General. 8.3.1.1* Sprinklers shall be installed in accordance with their
listing. 8.3.1.2 The requiremen requirements ts of 8.3. 8.3.1.1 1.1 shall not apply where
construction features or other special situations require unusual water distribution, and listed sprinklers shall be permitted to be installed in positions other than anticipated by their listing to achieve specific results. 8.3.1.3* Upright sprinklers shall be installed with the frame
arms parallel to the branch line, unless specifically listed for other orientation. 8.3.1.4 Where solvent solvent cement is used as the pipe and fittings fittings
bonding agent, sprinklers shall not be installed in the fittings prior to the fittings being cemented in place. 8.3.1.5 Prote Protective ctive Caps and Straps. Straps. 8.3.1.5.1* Protective caps and straps shall be removed using
means that are in accordance with the manufacturer’s installation instruction instructions. s.
2010 Edition
8.3.1.5.3 Protective caps and straps on all upright sprinklers sprinklers
or on any sprinklers installed more than 10 ft (3 m) above the floor shall be permitted to be removed from sprinklers immediately following their installation installation.. 8.3.2 Temperatur emperature e Ratings. 8.3.2.1* Unless the requirements of 8.3.2.2, 8.3.2.3, 8.3.2.4, or
8.3.2.5 are met, ordi 8.3.2.5 ordinary nary-- and inte intermed rmediate iate-tem -temperat perature ure sprinklers shall be used throughout buildings. 8.3.2.2 Where maximum ceiling ceiling temperatures temperatures exceed 100°F
(38°C), sprin (38°C), sprinkler klerss with temp temperat erature ure ratin ratings gs in acco accordan rdance ce with the maximum ceiling temperatures of Table 6.2.5.1 shall be used. 8.3.2.3 High-te High-temperatur mperaturee sprinklers shall be permitted to be
used throughout ordinary and extra hazard occupancies and as allowed in this standard and other NFPA NFPA codes and standards. Sprinkler Sprin klerss of inte intermed rmediate iate-- and high high-tem -tempera perature ture classification classific ationss shall be installe installed d in speci specific fic locations locations as required by 8.3.2.5. 8.3.2.4
8.3.2.5* The following practices shall be observed to provide
sprinklers of other than ordinary-temperature classification unless unle ss othe otherr temp temperat eratures ures are dete determin rmined ed or unle unless ss high high-temperature sprinklers are used throughout, and temperature selection shall be in accordance with Table 8.3.2.5(a), Table 8.3.2.5(b), and Figure 8.3.2.5: (1) Sprinklers in the high-temperature zone shall be of the high-temperature classification, and sprinklers in the intermediate-t intermediate-temper emperature ature zone shall be of the intermediate-temperature classification. (2) Sprinklers located within 12 in. (305 mm) to one one side or 30 in. (762 mm) above an uncovered steam main, heating coil, or radiator shall be of the intermediatetemperature classification. (3) Sprinklers within 7 ft (2.1 m) of a low-pressure blowoff blowoff valve that discharges free in a large room shall be of the high-temperature high-tempe rature classification. (4) Sprinklers under under glass or plastic skylights exposed exposed to the direct dir ect rays of the sun sha shall ll be of th thee in inter terme media diate te-temperature classification. (5) Sprin Sprinkler klerss in an unve unventil ntilated ated,, conc conceale ealed d space space,, unde underr an uninsulated roof, or in an unventilated attic shall be of the intermediate-temperature intermediate-temperature classification. (6) Sprin Sprinkler klerss in unve unventil ntilated ated show wind windows ows havi having ng high high-powered electric lights near the ceiling shall be of the intermediate-temperature intermediat e-temperature classification. (7) Sprinklers protecting commercial-type commercial-type cooking equipment and ventilation systems shall be of the high- or extra high high–tem –temperat perature ure class classifica ification tion as dete determin rmined ed by use of a temperature-m temperature-measuring easuring device. (See 7.10.6.) (8) Sprinklers Sprinklers prot protecti ecting ng resid resident ential ial areas inst installe alled d near specific heat sources identified in Table 8.3.2.5(c) shall be installed in accordance with Table 8.3.2.5(c). 8.3.2.5(c). (9) Ordinary-tempe Ordinary-temperature rature sprinklers located adjacent to a heating duct that discharges air that is less than 100°F (38°C) are not required to be separated in accordance with Table Table 8.3.2.5(a). (10) Sprinkle Sprinklers rs in walk-in type coolers and freezers with automatic defrosting shall be of the intermediate-tempera intermediate-temperature ture classification or higher.
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