The industry body Euralarm has published an application guideline on primary visual alarm devices and supplementary indicating devices. This document details the use and requirements of EN 54-23 compliant visual alarm devices and explains typical applications where a supplementary indicating device may be suitable.
Since January 2014 visual alarm devices (VAD) used for warning building occupants of a fire emergency must comply with the standard EN 54-23 and suppliers; and manufacturers of such devices must meet the requirements of the CPR when placing such devices on the European market. The document stresses that sounder beacon devices that don’t comply with these regulations can still be used, as long as they are only intended to be used as supplementary indication devices. The manufacturer or supplier should clearly state to which standard the device is tested and certified. A fire risk assessment of a premise should indicate whether an EN 54-23 compliant VAD is required.
This norm became mandatory on January 1, 2014 and states that VAD are intended to signal a visual warning of fire to the occupants of a building in order that such persons can take appropriate measures such as evacuate the building. EN 54-23 does not apply to supplementary indication devices, although this does not imply that such devices are not permitted. In order to establish a distinction between visual alarm devices (VAD) which comply with EN 54-23 and which are used to warn occupants of a fire, Euralarm recommends that devices intended for supplementary indication which are not compliant with EN 54 23 should be referred to as visual indicating devices, or VID.
The document also looks at the mounting requirements and illumination coverage volume when selecting a VAD. They are divided into three categories; C, W, and O. The application requirements for category O are not well defined in EN 54 23, because they rely purely on the application and installation data supplied by the manufacturers. The guidance document therefore gives advice on what information should be provided by the manufacturer or supplier to allow correct application of the device. Lastly, Euralarm gives several examples from the UK and France on the use of VADs and VIDs.
The Application Guideline can be downloaded from: http://www.euralarm.org/press/publications/.
