Release and rescue of a co-worker suspended on a long rope - Petzl USA
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Release and rescue of a co-worker suspended on a long rope

If the victim fell on a long length of rope (more than about 20 m), there is significant rope stretch due to the victim's weight. The rescuer's actions must take into account the effects of elasticity at the moment the victim is released from the rope.

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.

Case n° 2.1:

- Victim suspended on a length of rope.

- Victim in good health; no need for accompaniment.

- Evacuation path is clear and direct.

Beware of possible rubbing that can disable the BASIC and cause the victim to fall.

Beware of rubbing that can open or damage the sleeve of the BASIC's connector.

Beware of any obstacle that is likely to jam the end of the rope and the knots hanging off the BASIC.

If all favorable conditions are not met, do not use this technique.

Release and rescue of a co-worker suspended on a long rope 1/4
Release and rescue of a co-worker suspended on a long rope 2/4
Release and rescue of a co-worker suspended on a long rope 3/4
Release and rescue of a co-worker suspended on a long rope 4/4

Case n° 2.2:

- Victim suspended on a length of rope.

- Victim needs accompaniment.

If the elasticity issue is not identified before starting the rescue, in case of jamming, a specific technique allows the maneuver to be completed:

When transferring the load between the victim's rope and the rescuer's rope, the ropes' elasticity complicates the maneuver:

In case of jamming, a specific technique allows the maneuver to be completed 1/2
In case of jamming, a specific technique allows the maneuver to be completed 2/2

As the rescuer hauls the victim with the JAG SYSTEM, he reduces the stretch in the victim's rope, but when the hauling is done, the victim can still be partly suspended on his rope. Release is then possible using the following technique:

Release and rescue of a co-worker suspended on a long rope.

1. After hauling the victim to the maximum extent of the JAG SYSTEM, the rescuer installs a handled rope clamp with footloop to the victim's rope. (Warning: leave nothing above this rope clamp, especially not the rescuer's ASAP).

2. The rescuer loads the footloop

3. This unloads the rope at the victim's CROLL, which can then be detached. The victim is then fully suspended on the JAG SYSTEM. (A second attachment between the rescuer and the victim is recommended, for example a lanyard installed at the start of the maneuver).

4. The rescuer carefully unloads the footloop, and the two workers are then suspended on the rescuer's rope. Note: at the moment when the victim's rope is unloaded, the rope clamp can rise out of reach.

5. Once the victim and the rescuer are suspended on the same rope, the descent is carried out on the rescuer's rope.

Note: train yourself in this technique before using it in a real situation.

Advantages of this technique:

  • Very similar to the traditional method that is suitable for trained rope access workers.
  • Allows the rescue maneuver to be completed even if one has not taken rope stretch into account before acting.

Disadvantages:

  • A tricky moment where the rescuer must make several moves simultaneously, while maintaining control.
  • Several critical steps that cannot be reversed in case of error.
  • A difficult maneuver to do if the victim significantly outweighs the rescuer.

If the elasticity issue is identified before starting the rescue maneuver, it is possible to use another technique:

The principle of this technique is to unload the victim's CROLL by hauling him on a JAG SYSTEM temporarily installed on the same rope This allows an I'D to be installed in place of the CROLL. With this I'D, the victim can be lowered until he is suspended on the rescuer's system, without any elasticity issues.

Advantages of this technique:

  • Sequential method where each step is done separately from the others.
  • Reversal of any critical step is possible, in case of error.
  • Weight ratio between rescuer and victim has little effect.
  • The elasticity of the support has no effect.

Disadvantages:

  • Numerous steps and actions.
  • Method is slower than the preceding one.

Details of the maneuver:

ASAPNote: for better understanding of the drawings, the rescuer's ASAP is not shown.

JAG SYSTEM installed on a rope clamp above the victim, on his rope.
Sag
Sag
Long attachment between the rescuer and the victim, magnifying glass
JAG SYSTEM installed on a rope clamp above the victim, on his rope - magnifying glass

Long attachment between the rescuer and the victim. JAG SYSTEM installed on a rope clamp above the victim, on his rope.

JAG SYSTEM installed on a rope clamp above the victim, on his rope.
Sag
Sag
JAG SYSTEM installed on a rope clamp above the victim, on his rope - magnifying glass

Hauling the victim on the JAG SYSTEM, which enables the rope in the victim's CROLL to be unloaded.

Victim's descender installed on his rope, and his CROLL detached.
Sag
Sag
Victim's descender installed on his rope, and his CROLL detached, magnifying glass

Victim's descender installed on his rope, and his CROLL detached. Slack rope taken up in the descender.

JAG SYSTEM released to transfer the victim's weight to his descender.
Sag
Sag
JAG SYSTEM released to transfer the victim's weight to his descender, magnifying glass

JAG SYSTEM released to transfer the victim's weight to his descender.

JAG SYSTEM removed.
Sag
Sag
JAG SYSTEM - magnifying glass

JAG SYSTEM removed.

Victim's descender used 1/2

Victim's descender used to lower him and transfer his weight to the rescuer's system.

Disconnection of victim's descender and accompanied descent on the rescuer's descender.

Disconnection of victim's descender and accompanied descent on the rescuer's descender.

ASAPNote: for better understanding of the drawings, the rescuer's ASAP is not shown.

Note: train yourself in this technique before using it in a real situation.

  • Very similar to the traditional method that is suitable for trained rope access workers.
  • Allows the rescue maneuver to be completed even if one has not taken rope stretch into account before acting.