48 | EN
OBO Bettermann
Mounting the PYROLINE® Con S BSK with a support system
8 10
Running a cable out of the fire protection duct
Individual cables or cable bundles can be run out of the fire protection
duct. In the area of the cable exit, doublers are always required, irrespec-
tive of the classification of the fire protection duct.
Individual cable
– KAD-8040: Cable diameter ≤ 32 mm, ring gap ≥ 4 mm
– KAD-10040: Cable diameter ≤ 52 mm, ring gap ≥ 4 mm
Cable bundle
– KAD-8040: Cable diameter ≤ 28 mm, ring gap ≥ 6 mm
– KAD-10040: Cable diameter ≤ 48 mm, ring gap ≥ 6 mm
≥
100
mm
≥
100
mm
≥
100
mm
1
2
3
4
30 mm
Abb 41:
Cable outlet with doubler
1. Drill a hole for the cable gland in the wall of the fire protection duct.
Note!
Diameter of the drill hole according to the cable diameter and
data on the ring gap.
2. Place the doubler
1
accordingly over the drill hole and screw it on
with 4 screws
2
.
Note!
The doublers are already pre-drilled.
3. Pass the cables through.
4. Seal the ring gap with KTM fire protection duct mortar
3
.
5. Coat the exited single cable/cable bundle to a length of 30 mm in front
of and behind the penetration with KTM fire protection duct mortar
4
.
6. With further doublers, ensure a minimum distance of 100 mm be-
tween cable exits and at least 100 mm between the cable exit and the
end
of the duct (maximum of three cable exits per running metre).
