Continuing from our last blog on visual units on fire alarm systems.
The product standard EN54-23: Fire alarm devices – Visual alarms defines the performance requirement of visual alarm devices on a fire alarm, was published by BSI in June 2010. Typically, for fire detection and fire alarm product standards produced to satisfy the EU Construction Products Directive (Harmonised Standards), there is a 36-month transition period from the time the standard becomes available to national standards bodies.
In the case of EN54-23, the date by which national conflicting standards must be withdrawn is March 2013.
At the end of this transition period products which do not satisfy the harmonised standard (indicated by a CE Mark), will no longer be able to be put on the European market.
The standard specifies the requirements, test methods and performance criteria for visual fire alarm devices in a fixed fire alarm installation, intended to signal a visual warning of a fire initiated by the fire detection and fire alarm system. It covers only those devices that derive their operating power by means of a physical electrical connection to an external source, such as a fire alarm system, and it applies only to pulsing or flashing visual alarm devices – for example Xenon or rotating beacons and devices that rely on software for their operation.
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