Why is maintaining the proper angle in a sling important during lifting?

Maintaining the proper angle in a sling during lifting is crucial because it directly impacts the load distribution and stress experienced by the sling. When slings are used at the appropriate angle, they are able to distribute the load evenly, which minimizes the risk of excessive stress on the sling material. Excessive angles can result in increased forces, potentially leading to the sling's failure or damage. By keeping the angle within the recommended range, the integrity of the sling is preserved, ensuring a safer lift and reducing the likelihood of accidents or equipment failure. This understanding is vital for safe rigging practices, as it ultimately protects both the equipment and personnel involved in the lifting operations.