Building Technologies A6V10334410_h_en_--
Fire Safety 2015-09-29
3 Structure and function
3.1 Overview
Aspirating smoke detectors are used for early detection of smoke-generating fires
in rooms and equipment. They are especially suited to applications in which point
detectors are pushed to their limits, cannot be used or can only be used with
restrictions.
The aspirating smoke detector continually takes air from the monitored room using
a connected pipe system with defined aspirating holes. The air is supplied to the
detection chamber and is analyzed for smoke particles using the detector installed
there. The sensitivity of the detector can be adjusted.
The position and size of the aspirating holes are calculated with the 'FXS2055 ASD
Asyst Tool' software. The calculation ensures that the air passes from the
aspirating hole to the detector in the time specified and with the required calculated
sensitivity.
Examples of application
Cavities such as false ceilings or false floors
Rooms with polluted air, in which the pollution has impaired the performance of
optical point detectors
Clean rooms
Rooms the height of which is greater than that permitted for point detectors
Rooms with electromagnetic fields which influence the function of point
detectors
Large rooms up to 800 m²
Separate monitoring of control cabinets and electronics cabinets
Data centers
Telecommunication centers
Mounting lines
Cable tunnels
Conveyor belts
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