What does "dynamic load" refer to in rigging?

Dynamic load refers to any additional forces acting on a load during the lifting process. This concept encompasses not just the weight of the load itself, but also any extra forces that may be exerted during the lift. These forces can arise from factors such as wind, acceleration, or sudden movements that occur while the load is being lifted, causing it to generate forces that exceed its static weight. Understanding dynamic loads is crucial in rigging because they directly impact the safety and stability of the lift, influencing the strength and capacity requirements for both the rigging equipment and the crane. This knowledge ensures that operators can anticipate these additional stresses and mitigate potential risks during a lift.