1. What Is a Vertical Lifeline?
A Vertical Lifeline (VLL) is a personal fall protection system designed to safeguard workers performing vertical climbing or descent tasks. It is commonly used on communication towers, wind turbines, silos, chimneys, and building facades. In the event of a fall, the fall arrester instantly locks onto the lifeline, preventing further descent and significantly reducing impact force and injury risk.
2. When Should a Vertical Lifeline Be Installed?
Determining when to install a vertical lifeline should go beyond meeting minimum regulatory requirements — it should be based on risk assessment and usage frequency.
2.1 Height and Fall Risk
According to GB/T 3608-2008, any work performed 2 meters or more above the reference surface is considered work at height and requires fall protection measures.
For fixed ladders or elevated structures exceeding 2 meters or used frequently, a vertical lifeline system is strongly recommended.
2.2 Do You Need a Vertical Lifeline?
1️⃣ Is the climbing height over 2 meters?
→ Yes: A fall protection system is required.
→ No: Proceed to the next question.
2️⃣ Is it a frequently used access point or piece of equipment?
→ Yes: A lifeline is recommended.
→ No: Proceed to the next question.
3️⃣ Is the structure restricted by space or shape?
→ Yes: Use a flexible rope-based system.
→ No: Evaluate alternative solutions.