Belaying loads up to 272 kg with the I'D L. - Petzl USA
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Belaying loads up to 272 kg with the I'D L.

The belay rope must hold the falling load in case of primary system failure. It can thus be subjected to a sudden load equivalent to stopping a fall.

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.

Remember:

The energy developed in a fall increases considerably as the load increases. Above 100 kg and up to 272 kg, the user must be experienced and trained.

Precautions: 

  • The user must always hold the brake side of the rope.
  • The belay rope should always be taut to minimize impact force if the work rope breaks.
  • Be mindful of the clearance; if the work rope breaks, the load will drop to a lower level due to stretch in the belay rope.

 

Belaying loads up to 250 kg with the I'D S.

Belaying loads up to 250 kg with the I'D S.

 

 

Belay technique for raising:

The user must always hold the brake side of the rope.

 

Belay technique with I'D S while raising.

 

Belay technique for lowering:

The user must always hold the brake side of the rope.

Tilt the I'D to facilitate the rope sliding through the device.

 

Belay technique with I'D S while lowering.Belay technique with I'D S while lowering, danger.

 

Fall arrest tests with 272 kg and the I'D L:

To ensure the ability of the I'D L to belay a load up to 272 kg, tests were done to simulate an unfavorable situation, on a variety of new ropes that are compatible with the device.

This situation represents incorrect usage: brake rope not held and slack in the belay rope.

 

Fall arrest tests with 250 kg and the I'D S.

Results:

  • The impact force is acceptable (around 6 kN) due to rope slippage in the device.
  • Rope slippage in the device can be significant (1 to 2 m), plan for this in determining the required clearance.
  • The mass could be lowered after the test.