What percentage of capacity must be added to the minimum WLL of various lifting equipment for demolition operations?

For demolition operations, the standard practice is to add a percentage of capacity to the minimum Working Load Limit (WLL) of various lifting equipment to ensure safety and account for the dynamic loads that may be encountered during the process.

Adding 50% to the minimum WLL is recognized as a conservative approach that accommodates the unpredictable conditions that arise in demolition work. These conditions can include shifting loads, sudden impacts, or unexpected weight distribution changes, all of which can significantly increase the strain on lifting equipment. By incorporating this 50% buffer, workers have a safeguard in place to handle these unexpected challenges, helping to prevent equipment failure or accidents.

This practice is crucial in ensuring that all lifting operations during demolition are conducted safely and that the risk of overloading is minimized. Other percentages, while they may be applicable to certain circumstances, do not provide the same level of safety and assurance for such potentially hazardous operations.