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Mounting on a support system
62 | EN
6 3 8
Mounting a wall/ceiling penetration
With wall or ceiling penetrations, for the achievement of the fire resistance
class I30–I90, it is sufficient to plug the cavities around the duct with min-
eral wool and seal them with filler.
However, if I120 is to be achieved, then seal both sides of the penetration
with a wall connection fitting BSKM-WA 0711 or BSKM-WA 1025. The
overlapping ensures the necessary tightness. The wall connection fitting
is only available for BSKM 0711 and BSKM 1025.
The following mounting examples show a wall penetration. The ceiling
penetration is mounted in essentially the same way.
•
Prepare the wall penetration as described in Section "6.2 Creating a
wall/ceiling penetration" on page 45.
Wall penetration in solid wall (I120):
Fig 60: Wall penetration through solid wall
Note!
O bserve the minimum wall thicknesses according to the fire resistance
class:
I 30: min. 75 mm, I 60–I 120: min. 100 mm
See Fig. 61:
1
Stick the self-adhesive sealing strip to the lock plate.
Fasten the lock plate with washers and fire protection bolt ties (e.g.
MMS-plus 7.5x50) to the bottom edge of the wall opening at the de-
sired height.
2
Shorten the cables as necessary. If necessary, use locking brackets
for the duct lid (see "4.4 Inserting locking brackets" on page 19).
Insert the duct in the wall, observing the gap width of the onward
duct of 5‒10 mm.
Insert cables.
3
For duct BSKM 1025: insert the lid support (see "4.5 Using lid sup-
port" on page 20) and push it through to the end of the duct (see
Fig. 50 on page 46).
4
Stick the enclosed sealing strip onto the wall connection fitting.
5
Attach the duct lid firmly.
Plug the opening with mineral wool and seal with filler (see "6.2.1
Wall penetration in solid wall" on page 46).
Attach the wall connection fitting.
6
Attach the wall connection plate.
I30
I60
I90
I120
BSKM 0711/1025
max. 1 m
5-10 mm
BSKM 0711/1025
OBO Bettermann
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