Fire Alarm system requirements
Fire Alarm system Non-coded, UL Listed intelligent analog addressable system, one-way voice communications with multiplexed signal transmission and survivable network nodes.
Building codes and standards
§ National Fire Protection Association (NFPA):
NFPA‑70 National Electrical Code (NEC)
NFPA-72 National Fire Alarm Code
NFPA 101 Life Safety Code
IBC International Building Code
IFC International Fire Code
IMC International Mechanical Code
§ National Electrical Manufacture’s Association (NEMA)
§ Underwriters Laboratories, Inc. (UL)
UL-864 Control Units for Fire Protective Signaling Systems (9th Edition)
UL-268 Smoke Detector for Fire Protective Signaling Systems
UL-217 Smoke Detectors for Single and Multiple Station
UL-521 Heat Detectors for Fire Protective Signaling Systems
UL-464 Audible Signaling Appliances
UL-1971 Visual Signaling Appliances
UL-38 Manually Actuated Signaling Boxes
UL-1481 Power Supplies for Fire Protective Signaling Systems
UL 2572 Control and Communication Units for Mass Notification Systems
Systems operational description
§ Mass Notification initiated event shall override any event and take the highest system priority.
§ Fire-alarm signal initiation shall be by one or more of the following devices:
Duct smoke detectors.
Verified automatic alarm operation of smoke detectors.
Automatic sprinkler system water flow.
Heat detectors in elevator shaft and pit.
Fire-extinguishing system operation.
Fire standpipe system.
§ Fire-alarm signal shall initiate the following actions:
Activate three multiple channel pre-recorded voice messages.
Continuously operate the visual notification appliances.
Identify alarm at fire-alarm control unit and remote annunciators.
Transmit an alarm signal to the remote alarm receiving station.
Unlock electric door locks in designated egress paths.
Release fire and smoke doors held open by magnetic door holders.
Switch heating, ventilating, and air-conditioning equipment controls to fire alarm mode.
Activate stairwell and elevator-shaft pressurization systems.
Close smoke dampers in air ducts of designated air-conditioning duct systems.
Recall elevators to primary or alternate recall floors.
Activate emergency shutoffs for gas and fuel supplies.
Record events in the system memory.
Record events by the system printer.
§ Supervisory signal initiation shall be by one or more of the following devices and actions:
Valve supervisory switch.
Low-air-pressure switch of a dry-pipe sprinkler system.
Elevator shunt-trip supervision.
§ System trouble signal initiation shall be by one or more of the following devices and actions:
Open circuits, shorts, and grounds in designated circuits.
Opening, tampering with, or removing alarm-initiating and supervisory signal-initiating devices.
Loss of primary power at fire-alarm control unit.
Ground or a single break in fire-alarm control unit internal circuits.
Abnormal AC voltage at fire-alarm control unit.
Break in standby battery circuitry.
Failure of battery charging circuitry
High or low battery charge.
Abnormal position of any switch at fire-alarm control unit or annunciator.
Fire-pump power failure, including a dead-phase or phase-reversal condition.
Low-air-pressure switch operation on a dry-pipe or pre-action sprinkler system.
Device level diagnostics, supervision of photo, ion and heat elements.
§ System Trouble and Supervisory Signal Actions:
Initiate notification appliance and annunciate at fire-alarm control unit and remote annunciators. Record the event on system printer.