Choice of carabiner for the ZIGZAG - Petzl Other
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Choice of carabiner for the ZIGZAG

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.

Note: in this document the name ZIGZAG means either the ZIGZAG or ZIGZAG PLUS models.

Key issues and risks

ZIGZAG, key issues and risks.

The ZIGZAG is used alone, without a backup belay system; the locking system must be as secure as possible. In tree care, it is recommended (or required, depending on the country) to use triple-action locking systems.

When the rope is taut, the carabiner and the device are held in position by the tension. But when the rope is slack, the device and its carabiner can move about and become poorly positioned. So there is a risk of rubbing on the sleeve, or of cantilever loading between the device and the harness attachment point.

The most important risks to consider

Major axis loading with gate open
Minor axis loading
Force on the carabiner's locking sleeve.
Danger.

Recommendation on carabiner and accessories

For attachment to the harness

Use an Am’D TRIACT-LOCK or BALL-LOCK carabiner and a CAPTIV bar. Let the carabiner stay permanently on the ZIGZAG.

Am’D BALL-LOCK + CAPTIV
Am’D TRIACT-LOCK + CAPTIV

  • Security of locking

For attachment to the rope end point

Use an Am’D or OK carabiner with a TRIACT-LOCK or BALL-LOCK system.

Am’D TRIACT-LOCK
Am’D BALL-LOCK
OK TRIACT-LOCK
OK BALL-LOCK

  • Security of locking

For the connection between ZIGZAG and CHICANE

Use an Am’D or OK carabiner with a TRIACT-LOCK or BALL-LOCK system.

Am’D TRIACT-LOCK
Am’D BALL-LOCK
OK TRIACT-LOCK
OK BALL-LOCK

  • Optimized compatibility for positioning the CHICANE
Information

Am'D

The asymmetry of the D shape allows for good load distribution and helps resist carabiner rotation.

CAPTIV

  • The harness attachment carabiner can stay attached to the ZIGZAG with the CAPTIV bar.
  • The CAPTIV bar helps reduce poor positioning of the carabiner, and rubbing on the locking sleeve.

Precautions for use

Precautions for use
  • Regularly verify that carabiners stay positioned on the major axis, especially when loading them after they have been unloaded.
  • With an auto-locking carabiner, each time it is opened and closed, check that the sleeve is completely locked.
  • Avoid any pressure or rubbing that could damage or unlock the locking sleeve, and/or cause the gate to open.