When hoisting personnel with a crane, by what percentage should you de-rate the crane's load chart capacity?

When hoisting personnel with a crane, the load chart capacity is typically de-rated by 50%. This reduction is crucial to ensure safety when lifting people since the dynamics of personnel hoisting introduce additional risks and require more stringent safety measures.

The de-rating accounts for several factors, including the increased potential for movement and the load dynamics introduced when the personnel are suspended. The extra margin of safety is necessary as human lives are at stake, necessitating a conservative approach to weight limits. Therefore, maintaining a clear understanding of this de-rating practice is vital for those operating cranes, as it directly impacts their responsibility for ensuring the safety of the personnel being lifted.

Understanding the rationale behind this reduction helps operators approach lifting operations with the caution and concern for safety that they demand, ultimately fostering a culture of safety on work sites involving cranes.