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  • Overview of testing services

Mechanical cable tests

We carry out static and/or dynamic tests on electrical and optical signal cables or telecommunication cables in our own testing facility.


The test procedures are reproducible and correspond to real-life environmental and operational conditions, and are based on the applicable IEC and DIN EN standards.


Of course it is possible to carry out combined tests with temperature stress and/or determination of transmis-sion property changes. If the client so wishes, he may be present during testing.

 

Testing in the presence of TÜV Süd:
This option is particularly recommended where proof of faults is required for court cases.

 

 

Details

Static cable tests

Optical cables


Cable tensile strength and fibre
elongation acc. to EN 60794-1-2
methods 1A and 1B

  • Traction length
    up to max. 115 m
    (at room temperature)
  • Tensile stress
    up to max. 20.000 N
  • Temperature range
    max +100°C,
    min. -70°C
    on cable lengths of 8-10 m
  • Determination of transmission
    and mechanical property
    changes in a combined test

Coaxial, signal, mining and
telecom outdoor cables

Cable tensile strength in acc. with
IEC DIN EN 60794-1-2 method 1

  • Specimen length
    up to max. 30 m
    (at room temperature)
  • Tensile stress
    up to max. 20.000 N
  • Temperature range
    max +100°C,
    min. -70°C
    on cable lengths of 8-10 m
  • Determination of transmission
    and mechanical property changes
    during and after tensile stress in
    a combined test

(Cabled)
fibre overlength

  • Specimen length
    100 to 300 m
    (at room temperature)
  • Determination of the shortest
    and longest fibres in the cable

Preliminary test
to select the fibres for:

  • Cable tensile performance based
    on EC DIN EN 60794-1-2 / E1B
  • Temperature cycling
    IEC DIN EN 60794-1-2 /F1






Further static tests


Sealing cushion with valve:
for expansion and movement
joints, sealing for interim
gaps etc.

  • Specimen length < 1 m
  • Temperature 23 +3°C
  • Determination of
    mechanical, pressure
    or pneumatic property
    changes after 1 to 10 cm
    joint movements

 

 

Ring denting pressure


Further static tests on
optical and electrical
telecom cables

  • Specimen length
    up to max. 30 m
  • Temperature range
    max. 100°C
    min. +70°C
    on cable lengths of 8-10 m
  • Determination of transmission,
    mechanical or pneumatic
    property changes
  • IEC DIN EN 60794-1-2 / E3
    Crush resistance
  • IEC DIN EN 60794-1-2 / E3
    Duct crush resistance
  • No applicable standard
    Ring denting resistance

Repeated cable bending

  • IEC DIN EN 60794-1-2/E6
    Repeated bending
  • IEC DIN EN 60794-1-2/E4
    Impact resistance
  • IEC DIN EN 60794-1-2/E7
    Torsion
  • IEC DIN EN 60794-1-2/E7 (1)
    Torsion under stress
  • IEC DIN EN 60794-1-2/E11/A
    Cable bending (spiral bending)
  • IEC DIN EN 60794-1-2/E11/B
    Cable bending (U-bending)

(1) based on

  • IEC DIN EN 60794-1-2/E13
    Damage due to lead shot
  • IEC DIN EN 60794-1-2/F1
    Longitudinal watertightness
  • IEC DIN EN 60794-1-2/F8
    Resistance to pressurised air

 

 


 

 

Dynamic cable tests

Fixed deflecting devices

 

Optical cables Cable bending
under stress in acc. with
IEC EN 60794-1-2/method E18A

  • Traction length
    up to max. 115 m
  • Tensile stress
    up to max. 20.000 N
  • Temperature
    max +23 + 3°C
  • Determination of transmission
    and mechanical property changes
    of the sheath and/or the cable
    strength members during and
    after cable bending under
    tensile stress

Deflecting devices

Corner rollers for laying buried cables

Fixed deflectors

Coaxial, signal,
mining and telecom
outdoor cables

A) Cable bending under tensile stress

B) Tensile strength of
"high tensile strength cable closures"

Based on
IEC DIN EN 60794-1-2/E18

  • Specimen length up to
    < 30 m at 23 +3°C or
    permissible lowest and
    highest temperatures
  • Tensile stress
    up to max 30.000 N
  • Determination of transmission
    and pneumatic property changes
    of the sheath and/or the cable
    strength members during and
    after cable bending under
    tensile stress

Laying properties
(no applicable standard)

 

Based on IEC DIN EN 60794-1-2 / E18
A)    Cable sheath abrasion under stress
B)    Sliding friction under stress
C)    Cable pulling-in performance

 

- Specimen length < 50 m
- Temperature 23 +3°C
- Tensile stress up to < 5000 N


  • Cable identification marks and cable protective ducts with/out lubricant during and after laying stress
  • Tensile stress up to < 5000 N mehr 2.2
  • Determination of mechanical property changes in cable sheath, cable protective ducts etc.

3D Computer tomography of the inside of a cable


Examples of further tests:


  • Cable design
  • Materials etc.


In cooperation with sub-contractors:

  • Optical cable fibres and copper conductors
  • Core filler materials
  • Insulating materials etc.
  • Thermogravimetric analysis (TGA)
  • Infrared spectroscopy (IR)
  • Light microscopy (LM)

For further information,
please contact us.

 

Details