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Fire Alarm
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Fire Alarm System

Fire alarm systems designed for life safety provide early detection, occupant notification and summon appropiate aid in adequate time to allow occupants to travel to a safe place and rescue operations to be occure. The fire alarm is a intigral part of life safety plan that includes prevention, detection and notification, supression, compartmentation and responce. Fire alarm systems typically have four conditions, normal, trouble, supervisory and alarm. Systems are classified by the National Fire Code (NFPA 70-2002) as:

  • Household fire alarm systems.
  • Protected premisis fire alarm systems.
  • Supervised station fire alarm systems.
    • Central station fire alarm systems.
    • Remote supervising station fire alarm systems.
    • Proprietary supervicing station fire alarm systems.
  • Public fire alarm reporting systems
    • Auxiliary fire alarm systems - local energy type.
    • Auxiliary fire alarm systems - shunt type.

Conventional or zoned type systems annunciate by building area. Zones typically follow fire or smoke rated compartments and where required also indicate the device type (but not the specific device) that casued the alarm. Addressable alarm systems employ components that that allow discrete identification of specific initiation and control devices.

The selection of a specific product for a given project is made based on the hazard expected, environment in which the item must operate, applicable codes and our past experience with the product. Please use the menus on the left to review products we typically use.

The drawing below is from a Nursing Home we reciently completed. You may click on the symbol description to see the products we used for this project.

cntrl_mdl Control Module
fafp-topl
control_rly Control Relay
dac Digital Alarm Communicator
door_holder Door Holder
dual_monitor Dual Monitor Module
duct_dtr Duct Detector
facp Fire Alarm Control Panel
fann Fire Alarm Annunciator
faps Fire Alarm Power Supply
flow Flow Switch
heat_dtr Heat Detector
horn_strobe Horn Strobe
isolationIsolation Module
fafp-bottoml
mini_hornMini-horn
monitor_mdlMonitor Module
pressurePreassure Switch
pullManual Pull Station
remote_indicatorRemote Indicator
smoke_alarmSmoke Alarm
smoke_dtrSmoke Detector
strobeStrobe
sync_mdlSignal Syncronization Module
tamperTamper Switch
 
  • Notification Appliances  ( 3 items )

    Notification Appliances are the signals of an alarm system.  The types as:

    • Audible
    • Visual
    • Texual Audible
    • Texual Visible

     

    Types are often combined as in Horn/Strobes. 


  • Initiating Devices  ( 12 items )

    As defined by NFPA 72, Initating devices may be:

    • Heat Sensing
    • Smoke Sensing
    • Radiant Energy Sensing
    • Other
    • Sprinkler Waterflow Alarm Initiating
    • Detection operation of other automatic extingushing system.
    • Manual activation (Pull Stations)
    • Supervisory signal initiating
    • Smoke detectors for control of smoke spread.
  • Fire Alarm Control Equipment  ( 14 items )

    Control panels, annunciators, digital alarm communicators and signal expansion power supplies are all part of the control equipemt in a fire alarm system.  A sample of the control equipment that we use is listed below.

  • Fire Alarm Accessories  ( 5 items )

     
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