Narrow spaces or corridors (1-3 m wide)
Narrow spaces or corridors (1-3 m wide)
In addition, observe the following for loca-
tions in narrow rooms or corridors that are
1-3 m wide:
f Keep the distance of less than 7.5 m
between the front surface (end of the
corridor) and the first device.
f Keep the distance of less than 15 m
between two devices.
Narrow spaces or corridors (< 1 m wide)
Narrow spaces or corridors (< 1 m wide)
In addition, observe the following for locations
in narrow rooms or corridors that are less than
1 m wide:
f Observe chapter "Rooms with straight
ceilings (slope angle < 20°)" on page
41.
f Keep distance from surrounding walls
(exception: distance less than 0.5 m).
42
Rooms with slanted ceilings
Rooms with slanted ceilings
(slope angle > 20°)
(slope angle > 20°)
In rooms with ceiling slope angles of more
than 20° to the horizontal, heat build-ups
can occur in the ceiling peak which stop
smoke entering the smoke alarm device.
> 20°
Fig. 4
Rooms with slanted ceilings
Note the following for locations in rooms with
slanted ceilings:
f Mount devices at least 0.5 m and at a
Operating Manual: PX-1 - Smoke Alarm Device
Allowed
Not allowed
maximum of 1 m away from the ceiling
peak.