Electrical cable tensile testing machine
Electrical cable tensile testing machine Measures tensile strength of cables up to 20 metres long. Also carries out elongation tests.
THE SOLUTION PROVIDED BY LF TECHNOLOGIES
Our client is the industry leader in the manufacture of electrical wires and cables (electrical conductors).
Main functions
Objective
Design and production of a horizontal traction machine for pulling cables to the point of tearing, measuring the force/deformation curve according to configurable cycles and complying with current test standards.
Problematic issues
The electrical cable traction machine performs tests on cables up to 20 m long, with a programmable horizontal traction force of up to 800 kN. The automatic control system, a Human Machine Interface (HMI), provides intuitive control of the test bench, enabling adjustment of the tensile cycles and tensile forces, as well as format changes for the products to be tested.
Solution and result
The design office engineers developed the test bench using a concept of identical modules assembled end-to-end, ensuring perfect rigidity of the bench as well as ease of assembly and shipment of the test machine to our customer. This concept also allows the length of the bench to be resized by adding or removing modules.
Traction is provided by a hydraulic servo jack up to 800kN, with position, speed and force control. The cable under test is fixed between the traction cylinder and a lockable mobile carriage. This trolley can be adapted to the actual length of the cable being tested.
The test bench incorporates specific, interchangeable clamping jaws for rapid replacement of the cables to be tested.
Each module is fitted with polycarbonate covers to ensure the safety of operators in the event of breakage of the samples being tested.
The mechanical test bench proposed is the perfect answer to the problems posed. The software developed by our Labview programmers allows you to
- set up test routines,
- view measurement curves
- edit and consult sensor measurement calibrations
- edit automatic test reports.
Other products can also be tested on our traction benches.
- small electrical cables
- chains
Products testedA control PC, using software developed under LabVIEW, performs the control and measurement functions.
Cables (also known as electrical conductors)
An electrical conductor is a body that allows an electric current to pass through it. It can be made of various metals (silver, copper, gold, aluminium, etc.).
In our case, the aim was to test the tensile strength of aluminium electrical cables.
Banc de traction de câbles
Cable traction bench
Machine traction câble
Cable traction machine installed on customer site
Vue 3D du banc de traction
CAD of the cable traction bench
Chariot mobile
Mobile trolley to adapt to the actual length of the cable being tested.
cable-teste
Remainder of cable tested
cable-conducteur-electrique
Cable tested to breaking point
Courbes machine traction câble
Traction bench force measurement curves
Opérateur sur machine traction câble
Cable traction machine operator
vue-cables-electriques
Tested electrical wires
Câbles électriques de petites dimensions
Small electrical cables
Chaines
chains
Tensile test on electric cables.
Design and production of a horizontal traction machine for pulling cables until they are ripped off.
The electrical cable tensile testing machine performs tests on cables up to 20 m long with a programmable horizontal tensile force of up to 800 kN, and measures the force/deflection curve.
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Benoit Pelloquin
Mechanical Division
Other sector applications
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