Stress strain test

This test determines a stranded conductor’s or wire’s performance in terms of tensile strength and elongation when exposed to increased tensions levels. It establishes the short-term strain when applying a step wise increase of the tension. Based on the outcome of the test, the E-modulus of the conductor is defined. The results can be used for simulations in software such as PLS-CADD.

Apart from being typically carried out on stranded conductors, this test is suited for a variety of wires and cables., including catenary wires and messenger wires. Our lab is accredited for all standards including the common standards such as EN50182 and IEC61089.

  • Lamifil has a 500kN, 20m test bench which is digitally controlled and logged, improving test precision.
  • We have experience with all conductor types (HTLS, composite core, GAP,…), railway products (catenary wires, feeders, …) and various anchoring types, including press fittings, epoxy/resin casts and wedge type clamps.
  • We are fully flexible in the choice of fittings to be used and can advise based on experience.
  • This test can be executed while running a current of up to 2000A through the conductor.
  • The same set-up can be used for testing the accessories of the conductor.
  • The conductor is mounted in between one static point and one movable point;
  • Depending on the customer’s choice, the conductor is cast in resin or mounted in a fitting;
  • Once mounted, tension is gradually increased and released again after each step;
  • The steps (tension & duration) are defined in the applicable standard;
  • A full report is prepared including test object data, test description, set-up, procedure results and conclusions;
  • Usually this test is followed by a breaking load test.

How can we help?

Lamifil nv

Member of Koramic Investments

Frederic Sheidlaan
B-2620 Hemiksem
Belgium

t + 32 (0)3 8700 611
f + 32 (0)3 8878 059