What factor contributes to “shock loading”?

Shock loading occurs when a dynamic load is applied to a rigging system, causing forces greater than the static weight of the load to be transmitted through the rigging. Sudden changes in load weights or dynamic movements contribute to this phenomenon because when a load experiences an abrupt alteration in its applied force—such as during the start of a lift, an unexpected jolt, or sudden deceleration—the rigging can be subjected to forces that far exceed the static weight of the load being lifted. This situation causes sharp spikes in load that can stress the rigging equipment, potentially leading to failure. Understanding this factor is essential for ensuring safety and integrity in lifting operations, as properly managing and anticipating such dynamic conditions is crucial for rigger training and execution of lifts.