OBO Bettermann
54 | EN
Mounting on a support system
6 3 4
Mounting vertical bends
Vertical bends are used to compensate a height difference in a route, e.g.
in order to avoid a ceiling joist.
Fig 55:
Vertical bends to compensate a height difference
The rising and falling vertical bends (BSKM-ES 0711/1025 or BSKM-EF
0711/1025) can create angles of 45 °. The appropriate lock plates are al-
ready a component part of the article. They are suspended from threaded
rods and are used as a support element for the duct sections. Together
with the screwed-on fittings, they ensure the necessary tightness.
See Fig. 56:
1
Fasten the threaded rods to the ceiling and fasten the lock plates to
the threaded rods with washers and nuts at the desired height.
2
Shorten the ducts as necessary and then re-drill the duct fastening
holes (see Fig. 12 on page 18). If necessary, use locking brackets
for the duct lid (see “4.4 Inserting locking brackets” on page 19).
Remove the duct lid and fix the duct sections with two self-tapping
screws each (contained in the scope of delivery of the lock plate) on
or to the lock plate.
ATTENTION
Comply with the minimum bending radii of the cables!
Cables can be damaged on bending. When laying the cables in the
vertical bend, ensure that the minimum bending radius, prescribed by the
cable manufacturer, is observed.
3
Insert cables.
4
For duct BSKM 1025: insert lid support (see “4.5 Using lid support”
on page 20).
5
Attach the duct lid firmly.
6
Attach the fittings and screw on with the supplied nuts.
7
Using connecting screws (contained in the scope of delivery of the
vertical bend), create the equipotential bonding (see “8.1 Create equi-
potential bonding” on page 72).
