Conductix-Wampfler Cables for Reeling Systems

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Installation guidelines
Strain relief
A moving reel cable should never be
operated without sufficient tension relief.
During winding, the strands should
be able to move slightly within the
cable in order to ensure compensation
of length around the neutral strands.
Correctly implemented tension relief
will significantly lengthen the service
life of the cable.
1
2
3
4
5
6
7
8
Cable
Entry funnel with tension relief
Tension relief drum
Two full windings
Cable clamp
Connection boxes
Connector cable
Drainage
Another options for tension relief is in
the use of cable mesh grips, which
avoid point stresses on the strands in
their stranding bundles. The correct
cable mesh grip is selected according
Conductix-Wampfler offers different
systems for effective tension relief.
Both central and end feeds should ideally
use tension relief drums (whether
underground or above ground).
Here, it should particularly be ensured
that the tension relief drums comply
with the minimum bending radius Rmin
of the cable and that relief segments
Amin are provided. (see tables)
1 2 3 2 4
8
Rmin
Rmin
Amin
5 6 7
5
to the cable diameter. A cable mesh grip
with an eye is the standard variant. (1)
For vertical applications with higher tension
forces or if central feed is in use,
the use of cable mesh grips with two
1 2 3.1 3.2 schematic diagrams!
An optimum, force-fit installation of
tension relief is only ensured when at
least two full windings are in place on
the motorized cable reel and on the
tension relief drum!
eyes is recommended, since these can
support the forces better due to their
symmetrical arrangement. (2)
For impacts or extreme tension forces
(for example, spreader applications),
systems with tension relief springs (3.1)
or bundles of rubber ropes (3.2) are
used.