VAD?

Question

I have to plot this on a floor plan. I haven’t seen one before but it appears to be connected to the fire alarm system. Maybe a visual alarm device? Perhaps someone can save me trip to the site and advise what it might be?

AMK · Answer

Is it a VID or a VAD? During a inspection last year I think, a fire alarm system I installed was flagged because the Visual Indicating Devices (VIDs) needed to be replaced with Visual Alarm Devices (VADs). At the time, I was unaware of this requirement. 
 Visual Alarm Devices (VADs): These devices are designed to provide clear visual signals during emergencies, thereby facilitating evacuation. They are rigorously tested and certified to comply with the EN54-23 standard, which ensures a minimum level of light output and reliability. VADs are crucial in environments with high ambient noise levels, where individuals might use hearing protection, or for those who are deaf or hard of hearing. 
 Visual Indicating Devices (VIDs): These devices are intended for supplementary indication rather than primary alarm signaling. They do not meet the EN54-23 standard and are typically used to provide status indicators or to attract the attention of emergency services. VIDs should not be used as standalone alarm devices. 
 so we swapped the VIDs for VADs 
 - Andrew

VAD?

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