User Manual

e432d
31
Fire & Security Products
Siemens Building Technologies Group
06.2002
5.2.5 Minimum detector spacing
The distance from the detectors to the walls, fittings and stored goods may not be smaller
than 0.5m except in corridors, ducts and other similar parts of a building with a width of
less than 1m. If there are joists or beams, or, e.g. air conditioning ducts under the ceiling
which are closer to the ceiling than 0.15m, then the lateral distance must be at least 0.5m.
≥0.5m
≥0.5m
≤15cm
Fig. 19 Distances between detectors and walls, joists and fittings
5.2.6 Racks, stored goods
Stored goods or racks whose distance from the ceiling is less than 0.30m, prevent smoke
spread to such an extent that they must be treated as room dividers (walls).
h
h’
Fig. 20 Room divide = h’ <0.3m