Fire Alarm Design & Install

2026-11-03

A . A new intelligent reporting , microprocessor - controlled fire detection and notification system shall be installed in accordance with the specifications and as indicated on the Drawings . B . Each Signaling Line Circuit ( SLC ) and Notification Appliance Circuit ( NAC ): Limited to only 80 percent of its total capacity during initial installation . C . Control Panel shall be expandable from 1 to 2 SLC loops as necessary to accommodate future expansion using add - on modules . D . Basic Performance : 1 . Signaling Line Circuits ( SLC ) Serving Addressable Devices : Wired Style 6 ( Class A ). 2 . Initiation Device Circuits ( IDC ) Serving Non - addressable Devices Connected to Addressable Monitor Modules : Wired Class B ( NFPA Style B ). 3 . Notification Appliance Circuits ( NAC ) Serving Strobes and Horns : Wired Class B ( NFPA Style Y ). 4 . On Style 6 or 7 ( Class A ) Configurations : Single ground fault or open circuit on Signaling Line Circuit shall not cause system malfunction , loss of operating power , or ability to report alarm . 5 . Alarm Signals Arriving at Control Panel : Not lost following primary power failure until alarm signal is processed and recorded . 6 . Network Node Communications : a . System shall have the capability of networking with other Control Panels on a single pair of copper wires or fiber optic cables . 7 . Signaling Line Circuits ( SLC ): a . SLC modules shall operate in peer - to - peer fashion with all SLC modules in the Control Panel . b . On loss of an SLC module , each remaining panel shall continue to communicate with the remainder of system , including all SLC and control functions 8 . NAC Circuits : Arranged such that there is a minimum of 1 audible device per fire alarm zone . 9 . Notification Appliance Circuits ( NAC ), and Control Equipment : Arranged such that loss of any 1 NAC circuit will not cause loss of any other NAC circuit in the system . 10 . NAC Circuits : a . Electrically supervised for open and short circuit conditions . b . If a short circuit exists on the NAC circuit , it shall not be possible to activate that circuit .

California

2026-03-27