48 | FIRE DETECTION SYSTEMS | 4WIRE CONVENTIONAL SYSTEMS t: 0845 884 7000 | f: 0845 884 6000 | w: www.channelsafety.co.uk | @channelsafety | EDITION 7 Conventional Visual Alarm Device (VADs) PRODUCT OVERVIEW A European standard has been published to assess the performance of Visual Alarm Devices (VADs), which were often referred to as‘beacons’or ‘sounder beacons’. The assist hearing impaired people or staff working in noisy environments to recognise when a fire alarm has been activated. EN54-23:2010 has been introduced to standardise the requirements, and performance of VADs to ensure that adequate light intensity is achieved where required. There are 3 categories of VADs C - Ceiling Mounted: When mounted on a ceiling a level of 0.4 lux is archived over a known area W - Wall Mounted: When mounted on a wall a level of 0.4 lux is archived over a known area O - Open Category: Manufacturers specify the area coverage of the VAD. PRODUCT CODE DESCRIPTION F/VAD/C/1 Ceiling Mounted Visual alarm device White body Red flash. Shallow base. 25mA in alarm 7m @3m mounting height F/VAD/WB/C/2 Ceiling Mounted Visual alarm device White body Red flash with 98dB sounder deep base. 40mA in larm 7m coverage @3m mounting height F/VAD/C/3 Ceiling Mounted Visual alarm device Red body Red flash. Shallow base. 25mA in alarm 7m coverage @3m mounting height F/VAD/WB/C/4 Ceiling Mounted Visual alarm device Red body Red flash with 98dB sounder. Deep base 40mA in alarm 7m coverage @3m mounting height PRODUCT CODE DESCRIPTION F/VAD/W/1 Wall Mounted Visual alarm device White body Red flash. Shallow base 25mA in alarm 7m coverage @3m mounting height F/VAD/WB/W/2 Wall Mounted Visual alarm device White body Red flash with 98dB sounder deep base. 40mA in alarm 7m coverage @3m mounting height F/VAD/W/3 Wall Mounted Visual alarm device Red body Red flash. Shallowe base 25mA in alarm 7m coverage @3m mounting height F/VAD/WB/W/4 Wall Mounted Visual alarm device Red body Red flash with 98dB sounder Deep base 40mA in alarm 7m coverage @3m mounting height Ceiling Mounted Wall Mounted F/VAD/C/1 F/VAD/WB/C/2 F/VAD/C/3 F/VAD/WB/C/4 F/VAD/W/1 F/VAD/WB/W/2 F/VAD/W/3 F/VAD/WB/W/4