Compared to wire rope anchor systems, the Tether Track rigid rail system offers:
Less Fall Clearance Distance
Wire rope systems require additional fall clearance distances due to the initial sag of the wire and dynamic sag, or the sag and stretch of rope between adjacent support points, before the wire rope has enough tension to stop the fall (as seen in figure 1). Gorbels rigid rail stops the fall sooner by eliminating any sag (as seen in the blue shaded area of figure 2), stopping the fall in a much shorter distance than wire rope. By eliminating initial and dynamic sag distance, a Gorbel rigid rail anchor system is the best option for fall arrest in low headroom applications. With a shorter overall fall distance than wire rope, less clearance is required from the anchor point to the floor below.
Reduced Risk of Secondary Falling Injuries
Injuries occurring after the fall, such as swinging into obstacles, are minimized with an anchorage system that stays firm and minimizes total fall distance. When a worker falls on a wire rope system, the wires sag will make the trolley or pulley slide to the center of the nearest two supports, creating a risk for the fallen worker to collide with nearby obstacles as it centers.
Rigid rail lifeline keep the anchor point directly over the workers head. The worker will not pendulum, reducing he risk of secondary injury.
Longer Distances Between Supports
A rigid anchor system allows you to cover greater lengths between supports. This reduces both material and installation costs for your system, and also makes installation easier with fewer restrictions for where supports will be located.
Safer Work for Multiple People
When a worker falls on a wire rope system, any slack on the wire is eliminated. The result could be a sudden pull on the rope that can have a jarring effect on other workers on the same system, putting them at risk.
Rigid rail systems provide uninterrupted protection for additional workers on the same system without putting them in harms way. In the event of one workers fall, the enclosed track will not bend or deflect. That allows additional workers to continue moving freely and safely.