automatic sprinkler system
(2) The term “automatic sprinkler system” means an electronically supervised, integrated system of piping to which sprinklers are attached in a systematic pattern, and which, when activated by heat from a fire— (A) will protect human lives by discharging water over the fire area, in accordance with the National Fire Protection Association Standard 13, 13D, or 13R, whichever is appropriate for the type of building and occupancy being protected, or any successor standard thereto; and (B) includes an alarm signaling system with appropriate warning signals (to the extent such alarm systems and warning signals are required by Federal, State, or local laws or regulations) installed in accordance with the National Fire Protection Association Standard 72, or any successor standard thereto.