How is a lift classified when the load is not visible to the operator?

When a lift is classified as a critical lift, it signifies that special attention and precautions are necessary due to the increased risk involved. In the case where the load is not visible to the operator, the lift falls into this category because the operator cannot directly observe how the load is behaving. This lack of visibility can lead to a higher potential for accidents and hazards, making it crucial to implement additional safety measures, such as using ground personnel to guide the operation, ensuring effective communication, and possibly utilizing technology like cameras or sensors to monitor the load.

On the other hand, routine lifts typically involve visible loads, and standard lifts follow established procedures for loads that are visible and manageable within typical safety parameters. Safe lifts are a more general term and do not specifically address the visibility of the load which is critical in assessing risk. Thus, the classification as a critical lift is essential to address the unique hazards presented when the operator cannot see the load, ensuring that all necessary precautions are taken for safe execution.