EN 54-23:2010

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Requirements
5 Tests and evaluation methods
6 Evaluation of conformity
Annex A (normative) - Method for measuring the light
        distribution from a VAD
Annex B (normative) - Comparative light output level
        measurement for VADs
Annex C (informative) - Construction of the light test
        chamber and associated equipment for comparative
        measurements
Annex D (informative) - Comparison of flammability test
        requirements in various standards
Annex ZA (informative) - Clauses of this European Standard
         addressing the provisions of the EU Construction
         Products Directive (89/106/EEC)
Bibliography

This European Standard specifies the requirements, test methods and performance criteria for visual alarm devices in a fixed installation intended to signal a visual warning of a fire between the fire detection and fire alarm system and the occupants of a building. It is intended to cover only those devices which derive their operating power by means of a physical electrical connection to an external source such as a fire alarm system.This European Standard specifies the evaluation of conformity and the marking of the visual alarm devices.This European Standard applies to visual alarm devices that rely on software for their operation and to those that do not.This European Standard applies only to pulsing or flashing visual alarm devices, for example xenon beacons or rotating beacons. Devices giving continuous light output are excluded from this European Standard.This European Standard is not intended to cover visual indicators, for example those on detectors or on the control and indicating equipment.