What is the maximum percentage of the crane's rated capacity allowed when lifting personnel?

• A. 50%
• B. 60%
• C. 75%
• D. 90%

Answer: (A)

Lifting personnel requires a built‑in safety margin by reducing the crane’s permitted load. When a person is on a lifting device, dynamic forces from movement, start/stop, and potential sudden loads mean the crane can reach unsafe conditions more quickly. To account for that extra risk, only half of the crane’s rated capacity is allowed for personnel lifts. This savings in capacity helps prevent overloading the winch, line, and structure and reduces the chance of tipping or uncontrolled motion during the lift. Always consult the current load chart for the exact configuration (boom length, angle, radius, outriggers) to confirm that the capacity for lifting personnel is not exceeded, and use a properly rated personnel platform with fall protection. Other percentages would not provide sufficient safety margin for these dynamic conditions, which is why they’re not allowed.