Hama LM-107A Mode D'emploi page 5

3d
max. 3 m
max.
7,5 m
max. 3 m
max. 15 m
Hallways with a width > 3 m:
Hallways (L/U-shaped) with a width greater than 3 m are
to be visualised extended at the arms of the angle and
viewed as individual rooms. The resulting 'rooms' are to be
fitted with smoke alarms accordingly.
> 3 m
4a
> 3 m
4b
Note
The requirements apply not only for hallways but also for
rooms with these geometries (for example, corner room).
4.3.5 Rooms with slanted ceilings
• For peaked roofs with an angle >20°, the smoke alarm
should be installed at a distance of at least 0.5 m and no
more than 1 m from the gable peak; see Figure 5a.
max. 3 m
> 3 m
> 3 m
5a
>20°
• Note the following for rooms with only a partially slanted
ceiling: If the horizontal ceiling is less than 1 m wide, the
smoke alarm should be fitted on the slanted ceiling in
accordance with Figure 5b.
5b
>20°
• If the horizontal ceiling is wider than 1 m, the smoke
alarm should be fitted in its centre.
5c
0,5 m
>20°
• Roofs with angles of ≤ 20° can be handled the same as
horizontal ceilings (see 4.3.3 Standard rooms).
4.3.6 Raised horizontal surfaces and galleries
If a room is subdivided horizontally, for example, through
a raised horizontal surface or gallery, an additional smoke
alarm is required beneath if:
• both the area beneath the subdivision (raised horizontal
surface, gallery, etc.) is greater than 16 m²
• and the length and width each exceed 2 m.
4.3.7 Rooms with joists/beams
For rooms with beams or other joists, the following require-
ments must be observed depending on dimension:
0,5 m
0,5 m
max. 1 m
> 1 m
0,5 m
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