AS 1603.11:2018 PDF
The objective of this Standard is to provide manufacturers and designers of fire detection and alarm systems with requirements for the design and performance of visual warning devices intended to provide supplementary information in fire detection, warning, control and intercom systems.
Visual warning devices (VWD) may be used to provide supplementary information to Visual Alarm Devices (VAD) or Audible Alarm Devices (AAD). This may include signals to hearing impaired persons, persons occupying high ambient noise environments, and persons in environments where audible alarms may have an adverse effect (e.g. hospital wards, broadcast studios).VWD are also required to be used in special hazards applications installed to AS 1670.5 specifications.
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