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the ceiling, it should be installed at least 50 cm from a cor-
ner.
· If the length of the room or corridor is more than 9 m, in-
stall several smoke detectors.
· Your corridor having an L shape, mount a smoke detector
in the mitre line or one detector in each wing of the corri-
dor.
· In the case of round or pointed ceilings, install the smoke
detector between 50 cm and 100 cm below the top of the
ceiling (see Fig. 4, upper part). On sloping ceilings, whose
height difference is more than 1 over a length of 6 m,
mount the detector on the lower half of the ceiling of the
room (see Fig. 4, lower part).
· If the length and width of a gallery are more than 2 m and
the gallery has a total area of more than 16 m², an additional
detector is required under the gallery (see Fig. 5).
· The following applies to rooms with a partially sloping roof:
if the horizontal ceiling is less than 1 m wide, mount the de-
tector as shown in Fig. 6. If the horizontal ceiling is wider
than 1 m, mount the detector in the middle of the horizontal
ceiling.
Figure 3
(Zimmerdecke = ceiling; Mindestabstand = minimum dis-
tance; best hier = best here; hier nicht installieren = do
not install here)
Figure 4
(hier nicht installieren = do not install here; akzeptierbare
hier = acceptable here; spitzen Decken = pointed ceil-
ings; schrägen Decken = sloping ceilings)
Figure 5 rooms with a platform or gallery
– 5 –
Document NO.:RD-506G-39-001 Version: G 20180129
permitted
forbidden
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