Choice of Petzl Carabiner for Connecting a Fall Arrest Device to the Harness

Introduction

Fall arrest systems are vital in ensuring safety at height. Selecting the appropriate carabiner to connect a fall arrest device to the harness is crucial. The carabiner must remain secure, properly positioned, and ready to arrest a fall at any moment, even after hours of inactivity.

Key Issues and Risks in Fall Arrest Systems

1. All-Day Wear Without Tension
   • Fall arrest devices like ASAP and ABSORBICA are worn for extended periods without tension, requiring connectors that maintain security and alignment during prolonged use.
2. Challenging Monitoring
   • Devices connected to the dorsal point are particularly difficult to monitor during use, increasing the importance of selecting the right carabiner and attachment method.
3. Critical Risks to Address
   • Misalignment or improper positioning of carabiners can reduce their effectiveness during a fall.
   • External forces, like vibrations or movements, can unintentionally unlock certain locking systems.

Recommended Carabiners and Configurations

1. Auto-Locking Systems

• TRIACT-LOCK (TL) and BALL-LOCK (BL) systems offer automatic locking for added security. These are preferred for fall arrest systems when paired with a carabiner positioning accessory like the CAPTIV bar.

2. Quick Links

• A tightened quick link can serve as an alternative, especially in environments requiring high durability. Ensure the quick link shape matches the attachment points for optimal load distribution.

3. Avoid Using Screw-Lock Systems (SL)

• SL systems are less secure for fall arrest applications due to the risk of accidental unlocking from vibrations or movements.

Precautions for Safe Use

• Use Positioning Accessories: Always use a carabiner positioning system, such as the CAPTIV bar, to ensure the carabiner stays aligned and securely positioned.
• Final Locking Checks: Verify that all carabiners and connections are securely locked before use.
• Appropriate Shape and Material: Select a carabiner shape that aligns with the harness attachment points, considering material durability for the application.

Why Choose Petzl Carabiners?

Petzl carabiners are designed to meet the unique challenges of fall arrest systems. Their automatic locking mechanisms and compatibility with positioning accessories provide reliable performance for professional applications.

Explore More at Rigging Lab Academy

• Guide to Fall Arrest Systems
• Petzl Carabiner Overview
• Safety Accessories for Fall Arrest Systems

Conclusion

Ensuring the right choice of carabiner for fall arrest systems is about more than just picking hardware. It’s about understanding the risks, selecting suitable features, and adhering to proper setup techniques. By making informed decisions, you can ensure safety and reliability during every operation.

Peace on Your Days,
Lance