What is the maximum fall arrest force limited by energy absorbers?

The maximum fall arrest force limited by energy absorbers is essential for ensuring the safety of workers at height. Energy absorbers are designed to reduce the peak forces experienced by a fall protection system during a fall. When a person falls, the energy absorber extends and dissipates energy, which minimizes the forces transmitted to the harness and the individual.

The correct answer is associated with the established safety standards, which typically dictate that the maximum arrest force experienced by a person during a fall should not exceed 900 lbs (4 kN). This limit strikes a balance between providing enough force to arrest a fall effectively while minimizing the risk of injury to the individual due to excessive force.

This is critical to preventing severe injuries, such as those that could arise from forces exceeding the human body's tolerance levels. Standards set by organizations such as ANSI (American National Standards Institute) or OSHA (Occupational Safety and Health Administration) guide the specifications for these safety limits, ensuring they enhance worker safety across industries.

The other options represent forces that exceed the limits established for safe fall arrest practices, which could result in injury if used in actual fall scenarios. Understanding these limits is crucial for anyone involved in theatre rigging or working at heights.