UL Standard for Safety Alarm Accessories for Automatic Water-Supply Control Valves for Fire Protection Service (Eighth Edition; Reprint with revisions through and including July 20@ 2018)
These requirements cover alarm accessories for automatic water-supply control valves for use in automatic sprinkler equipment for fire protection service. Accessories may include water motors and gongs@ pressure-operated switches@ and other electrical and nonelectrical attachments@ components@ or units commonly used with alarm@ dry-pipe and pre-action valves. Requirements for the installation and use of alarm accessories with automatic water-supply control valves are included in the Standard for Installation of Sprinkler Systems@ NFPA 13. The electrical alarm accessories for automatic water-supply control valves are intended for fire-protective signaling use in ordinary locations in accordance with the National Electrical Code@ ANSI/NFPA 70.