OBO Bettermann SLM50 Mounting Instructions page 17

Note!
WARNING
SLM50 suspended vertical ladders for the maintenance of electrical function
Mounting vertical ladders up to a max storey height of 3 5 m
11. Mount ladder rails under the ceiling with 1 M10 truss-head bolt each
on the head plates.
– Mount the rails with the open sides facing each other.
– Place the bolts up to the limit in the slot, in order to prevent a verti-
cal movement of the vertical ladders.
At a storey height > 3 m, additional ladder rails must be mounted with the
mounted ladder rails. See also "6.5 Mounting U support connectors" on
page 30.
Function loss through length expansion in the event of fire!
If there is a fire, the material of the vertical ladders expands. Do not bolt
the vertical ladder to the floor. Maintain a minimum distance of 40 mm
between the end of the ladder rail and the top side of the transverse
profile.
Fig 15: Moveable bearing on the floor
17 | EN