To what factor should the load capacity of slings be reduced when the angle is decreased?

When the angle of a sling decreases, the load capacity is effectively reduced because the sling experiences increased tension. This phenomenon is due to the relationship between the angle of the sling and the force distribution. As the angle decreases, more force is required to lift the same load, resulting in a situation where the slings are under more strain than when they are used at optimal angles.

Reducing the load capacity to 70% of its original value recognizes this increased tension and helps ensure safety by accounting for the additional stress placed on the sling due to the angle decrease. Properly adjusting the load capacity in accordance with the angle helps prevent accidents due to sling failure or unintended load drop. This understanding is critical for maintaining safety standards in rigging and lifting operations.