Visual Alarm Device (VAD)
AutroGuard Multicriteria Protector Series V-430, V-530, V-100, V110 and V-120,
AutroGuard-Technical-Handbook, Doc-1004339-4, 2022-12-09,
Autronica Fire and Security AS
Page 39
6.3 Category C – Ceiling Mounted Devices
x – The maximum height of either 3, 6 or 9 m at which the VAD may
be mounted
y – The diameter in metres of the cylindrical volume covered (to a
minimum level of 0.4 lux) when the device is mounted to the ceiling
at a height of 3, 6 or 9 m
Note:
The protected space is within the cylindrical volume and ensures that
all areas meet the required illumination of 0.4 lux.
To convert the coverage diameter y to the width of a square room:
Width of square room = y / 1.414 m
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