Fire Detection and Fire Alarm Systems. Introduction: BS EN 54-1:2021


This British Standard defines the terms and definitions that are used throughout the EN 54 series of standards. It gives the principles on which each part of the series has been based and describes the functions carried out by the components of a fire detection and fire alarm system.


The document applies to fire detection and fire alarm systems for buildings and civil engineering works. It does not address smoke alarm devices, which are covered by EN 14604.


The EN 54 series applies to fire detection and fire alarm systems for buildings and civil engineering works composed of several components that communicate for the purpose of detecting fire at the earliest practicable moment, and:

  • To give audible and/or visible signals to the occupants of the building who might be at risk from a fire.

  • To provide remote fire alarms to organizations having authority to take care of buildings and their environment.

  • To give signals to initiate, in the event of a fire, the operation of other fire protection and equipment/systems.

The EN 54 series specifies:

  • Product characteristics, test methods and performance criteria against which the effectiveness and reliability of the component parts of fire detection and fire alarm systems can be assessed and declared.

  • Requirements for compatibility and connectability of components when combined into a system.

  • Guidelines for application of fire detection and fire alarm systems in buildings and civil engineering works.

The Standard is available here.

British Standards Institute June 2021

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