The vertical cable ladders STL, STM and STIC meet the exact specifications and definitions of DIN 4102 Part 12 of November 1998, such as height of the cableladder / tray, width of the cable ladder/ tray, proportion of holes in the cable tray, distance between rungs of the cable ladder, material thickness, max. permissible cable dead weight, max. permissible fastening spacing, etc.
Their classification as a standard support system allows them to be combined with any circuit integrity maintenance cable / cable that has a valid general test certificate from the building authorities regulating installation on standard support constructions.
Mounting instructions for fastening spacing a ≤ 1.2 m Cable load q ≤ 20 kg/m
Mounting instructions (using STL 60 and STM 60 as an example)
According to DIN 4102 Part 12:1998-11, only the horizontal arrangement of cable systems is tested, i.e. test results on horizontal cable systems also apply to corresponding inclined or vertical cable systems such as riser systems.
In the special notes in the test certificate it is pointed out that the assessment only applies to inclined or vertical arrangements if the cable systems are supported in the transition area vertically/horizontally so that kinking or slipping of the cables at the edges is prevented.
For continuous vertical cable ladders over 3500 mm, the classification only applies if there is effective support for the cables (see DIN 4102 Part 12: 1998-11, Figure 5). This support can be provided by a lateral offset of at least 300 mm or by a sealed off strain relief (fire protection housing) tested according to DIN 4102
The standard support construction of vertical cable ladders STL, STM and STIC in accordance with DIN 4102 Part 12 for vertical cable laying with circuit integrity maintenance classes E30, E60 and E90 are available in galvanised or stainless steel in widths of 200 to 600 mm.
Our vertical cable ladders STL, STM and STIC can be fixed to the wall directly or with internal or external wall connection angle WWU 150/8 or WWI 80 with a fastening spacing a ≤ 1.2 m and a cable dead weight of q ≤ 20 kg/m.
The wall connection angle WWU 150/8 is fastened to the vertical cable ladder side rail with mushroom-head bolt FLM 8X13 and the wall connection angle WWI with flat round-head screws FLM 12X30. For fastening to the ground, fastening elements of at least M8 are required for STL and STM fasteners of at least M8 and STIC fasteners of at least M10 must be used.
If installation directly on the solid wall is not possible due to structural conditions, vertical cable routing can also be implemented in a suspended position using the STBA vertical cable ladder fastening adapter. The distance between the rungs is 300 mm.
The rungs of the STL are C-profile 2970 with a slot width of 16 mm, suitable for yoke clamps type B. The rungs of the STM and STIC are C-profile 2986 with a slot width of 18 mm, suitable for yoke clamps type BU.
For the STL and STM riser routes, the couplers are connected using two KLVB 60/4 connectors and 4 FLM 8X13 mushroom head bolts each, and for the STIC riser route using two VBI 80 connectors and 4 FLM 10X25 mushroom head bolts each.
The use of KLVB 60/4 or VBI 80 couplers is not restricted to specific positions. For continuous vertical routes over 3.5 m, effective strain relief / support measures must be taken, e.g. in accordance with Fig. 5 of DIN 4102 Part 12 to prevent slipping.
Mounting vertical cable ladder (The STL 60, STM 60 as an example)
Two STL 60 / STM 60 vertical cable ladders are connected using the KLVB 60/4 cable ladder straight couplers with 4 FLM 8X13 mushroom head bolts per coupler. The vertical cable ladder fastening adapter is fastened to the side rail of the access route using 2 mushroom head bolts FLM 8X16.
The vertical cable ladder fastening adapter is fastened to the ground using approved M12 dowels. Alternatively, it can also be fixed by bridging the opening using M12 threaded rods in accordance with Appendix 3 of the fire protection assessment.
