Static tests - Petzl USA
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Static tests

Warnings

  • Read the technical notice before viewing the following techniques.
  • It is important to fully understand the information provided in the technical notice before using this complementary information
  • Mastering these techniques requires training.
  • Consult a professional before attempting to perform these techniques on your own.

The following tests were done in labs; they were done on new ropes and devices, but it is impossible to recreate every scenario. Warning: we did not test every rope on the market; the results of these tests could be different with other types of rope.

The test values are given for information only, to give an idea of the loads involved in such situations.

Values recorded during tests with new ropes, certified to current European standards (EN 1891 low stretch kernmantel ropes, EN 892 dynamic ropes).

Warning: older ropes are generally weaker.

Testing done with slow pulls, until the first signs of rope damage appear. (Maximum load tested = 5 kN)

Warning: the rope damage values, recorded during the dynamic tests (falls/shock loads) are generally lower than with slow-pull: the frame-loaded rope clamps are not designed to hold shock loads.

Static test - slow pull

EN 1891 type A low stretch kernmantel ropes

Rope diameter Beginning of sheath damage
8 mm 4.6 kN
8.5 mm 4.9 kN
9 mm 4.6 to 4.8 kN
10 mm > 5 kN
10.5 mm > 5 kN
11 mm > 5 kN

Static test - slow pull

EN 892 dynamic rope

Rope diameter Beginning of sheath damage
8 mm 4.5 kN
9 mm > 5 kN

The ropes used with the MICRO TRAXION can be damaged at loads between 4 kN and 5 kN (or more) depending on their diameter.