How Fire detection and alarm system Works?


A fire detection and alarm system may be activated by automatic detection devices or by manual operation and should fulfil its functions without errors or omissions, including

  • detecting quickly enough to fulfil its intended function,

  • reliably transmitting the detection signal to the control and indicating equipment and, if applicable, the fire alarm receiving station,

  • translating the detection signal into a clear alarm signal that will attract the attention of occupants in an immediate and unmistakable way,

  • remaining insensitive to phenomena other than those which its function is to detect, and

  • signalling immediately and clearly any supervised fault that might jeopardize the correct performance of the fire detection and alarm system.

A fire detection and alarm system should not

  • be adversely affected by any other systems whether associated with it, or not

  • be rendered partially or totally inoperative by the fire or the phenomenon which it is designed to detect before the fire or phenomenon has been detected.


The Fire Alarm and Detection Systems can be set off automatically by smoke detectors, heat detectors or manually.