Full definition
A lifeline is a critical safety device designed to connect a worker's harness to a fixed anchor point, thereby preventing falls from heights. This device is essential in various industries where workers are exposed to potential fall hazards, such as construction, maintenance, and industrial work environments. Lifelines come in several types, each serving specific purposes and offering different levels of protection. The self-retracting lifeline (SRL) is one of the most advanced, designed to automatically retract and maintain tension, ensuring no slack is present. This feature allows the SRL to arrest a fall within a maximum distance of 30 cm, minimizing the risk of injury during a fall event. The energy-absorbing lanyard (E4) is another common type that limits the maximum free fall distance to 1.8 m, effectively reducing the impact force on the worker's body during a fall.
Horizontal lifelines, on the other hand, are used for travel restraint or fall arrest across horizontal surfaces. These lifelines must be carefully designed and installed to ensure they can withstand the loads exerted during a fall. Proper installation involves considering factors such as the anchor points' strength, the angle of the line, and the potential for swing falls. Compliance with relevant safety standards, such as ANSI Z359.14 for SRLs and ANSI Z359.13 for energy-absorbing lanyards, is crucial to ensure reliable performance and worker safety. Regular visual inspections before each use are mandatory to identify any wear, damage, or degradation that could compromise the lifeline's effectiveness. Additionally, any lifeline that has experienced a fall or impact load must be removed from service immediately to prevent future failures.