Less Fall Clearance Distance- Wire rope systems require additional fall clearance due to the initial sag of the wire. The dynamic sag, or the stretch of the rope during a fall, adds to this distance. A rigid rail fall arrest system stops the fall sooner by eliminating any sag, stopping the fall in a much shorter distance than the wire rope.
Reduced Risk of Swing Fall Injuries- Injuries occurring after the fall, such as swinging into obstacles, are minimized with a rigid rail fall arrest system, which stays firm and minimizes the total fall distance. When a worker falls on a wire rope system, the wire’s sag will make the trolley slide to the center of the nearest two supports, creating a risk for the worker to collide with nearby obstacles after a fall.
Longer Distances Between Supports- A rigid rail fall arrest system allows for longer distances between supports, reducing both material and installation costs.
After a Fall- The worker can continue use of a rigid rail fall arrest system after a visual inspection. A wire rope system must be replaced and recertified by a qualified engineer.