EN IT | Club | Newsletter | Forum |
 Petzl
Home page
Info, contacts
All products
News
 PRODUCTS - Petzl
Mountain gear
Ultra
Sirocco
Volta 9.2 mm
Elia
Spirit Express
Djinn Axess
Reverso 4
Harnesses
Sama
Luna
Ice Axes
Nomic
Crampons
Dart
Via Ferrata
Kit Via Ferrata
 NEWS - Petzl
17/04/13
Safety Information: Petzl ZIGZAG mechanical prusik
Petzl ZIGZAG: safety information regarding this mechanical prusik for arborists
www.petzl.com
Petzl

On Friday, April 12, Petzl was informed of an accidental fall in a training center in Germany. The injured person was moving at height using a Petzl ZIGZAG mechanical prusik. The first observations have shown that the fall was due to a failure of the rope end attachment hole. After hospitalization, the injured person returned home on April 14. We are deeply concerned and we wish him a very quick recovery.

Current information regarding the accident (as of April 15):
As of today, Petzl has been able to gather the following information:
- photos of the Petzl ZIGZAG and the rope end attachment hole - a preliminary telephone account by the injured person
This information seems to indicate that:
- The upper carabiner may have been cantilevered and cross loaded
- The injured person was descending while performing repeated, sudden stops while using the device in a training center.
Nevertheless, to have a clearer vision of the accident's cause, Petzl is in contact with the injured person to obtain the following missing information and equipment as quickly as possible.
- a description of the complete system used by the injured person
- the ZIGZAG, the two connectors, the rope and any other devices that may have been used.

Technical reminders
- ZIGZAG design:
- The ZIGZAG is CE-certified PPE and designed to resist static loads greater than 15 kN.
- The side plates are constructed with the same materials and adhere to the same side plate requirements as similar products (ID, GRIGRI, RIG).
- Use of connectors:
A carabiner should always be loaded on its major axis. If it is cross-loaded, side-loaded or loaded off axis, it can: - break under low loads (ex: gate breakage at 1 to 2 kN)
- or if cantilevered, it can transmit very high loads (4 to 5 times the applied load)
- Note:
Sudden stopping during a descent could transmit dynamic loads up to 3 to 4 kN. The combination of both incorrectly loaded carabiners and sudden stops could generate dynamic forces greater than 15 kN and exceed the minimum breaking strength of the attachment points of the connected device.

On-going testing
-Taking into account the information that we currently know of this incident, Petzl is now conducting a battery of tests to understand the precise causes of this accident. To date, our preliminary in-house tests do not show this potential failure even under high loads (cross-loaded, side-loaded or loaded off axis) of 10-15 kN. We are continuing different testing scenarios to try to understand the failure.

Follow-up action and Recommendations
- Petzl takes this accident and safety of its users very seriously. We will communicate the final results of our tests and our conclusions on our website by Tuesday, April 23, 2013.
- Until then, you can continue to use your ZIGZAG in accordance with the technical notice, ensuring that the attachment carabiner remains oriented on their major axis.
- As an additional measure of precaution, we recommend that you put in place a connector retaining solution that keeps the connectors oriented on their major axis.

Reminder:

We draw your attention to the following points, which are applicable to all metallic PPE:
- Inspect before use:
- the absence of cracks or fissures
- the absence of product deformation.
- Verify during use that your carabiners are always correctly loaded on their major axis.
- Ensure the compatibility of all components in your system.

For futher information visit www.petzl.com


Share
 NEWS - Petzl
17/04/13
Safety Information: Petzl ZIGZAG mechanical prusik
18/01/13
Petzl: new climbing and mountaineering harnesses
07/06/12
Petzl RocTrip China 2011 - the official movie
21/02/12
Petzl Newton harness: request for inspection
01/02/12
Petzl Nao headlamp with Reactive Lighting technology
21/06/11
Petzl recall for replacement: GRIGRI 2
 SEARCH
  
 PLANETMOUNTAIN.COM
dot
dot
ROCK
Dolomites
Multi-pitch routes
Crags
Competitions
dot
ICE
Ice Falls
Alpine Classics
Competitions
dot
SNOW
Ski mountaineering
Freeride
Snowshoes
dot
TREKKING
Worldwide
Vie Ferrate

EXPEDITIONS
dot
SPECIAL
Interviews
Weblink
dot
LAB
Techniques
Gear
dot
MOUNTAIN INFO
Tourism
Mountain Guides
dot
EXPO
dot
NEWS
Newsletter
Info
dot
dot
Copyright© Mountain Network s.r.l - P.IVA 03528410289 - Send your comments and suggestions to PlanetMountain.com posta
dot
ITALIAN VERSION
dot