Standard for the Installation of Private Fire Service Mains and Their Appurtenances

1.1 Scope.
1.1.1 This standard shall provide the minimum requirements for the installation of private fre service mains and their appurtenances, which include supplying the following:
(1) Automatic sprinkler systems
(2) Open sprinkler systems
(3) Water spray fxed systems
(4) Foam systems
(5) Private hydrants
(6) Monitor nozzles or standpipe systems with reference to water supplies
(7) Hose houses
1.1.2 This standard shall apply to combined service mains intended to carry water for fre service and other uses.
1.1.3 This standard shall not apply to the following situations:
(1) Mains under the control of a water utility
(2) Mains providing fre protection and/or domestic water that are privately owned but are operated as a water utility
(3)* Dry fre hydrants utilized for drafting or mains connected to dry fre hydrants utilized for drafting
1.1.4 This standard shall not apply to underground mains serving sprinkler systems designed and installed in accordance with NFPA 13R that are less than 4 in. (100 mm) in nominal diameter.
1.1.5 This standard shall not apply to underground mains serving sprinkler systems designed and installed in accordance with NFPA 13D.
1.2 Purpose. The purpose of this standard shall be to provide a reasonable degree of protection for life and property from fre through installation requirements for private fre service main systems based on sound engineering principles, test data, and feld experience.
1.3 Retroactivity. The provisions of this standard refect a consensus for what is necessary to provide an acceptable degree of protection from the hazards addressed in this stand‐ ard at the time the standard was issued.
1.3.1 Unless otherwise specifed, the provisions of this stand‐ ard shall not apply to facilities, equipment, structures, or instal‐ lations that existed or were approved for construction or installation prior to the effective date of the standard. Where specifed, the provisions of this standard shall be retroactive.
1.3.2 In those cases where the authority having jurisdiction (AHJ) determines that the existing situation presents an unacceptable degree of risk, the AHJ shall be permitted to apply retroactively any portions of this standard deemed appropriate.