1.A4.4 MARKING

All dedicated supporting structures and approved lifting points should be clearly identified and marked with their SWLs. It should be noted that, when designing lifting equipment support structures for use with power operated hoists, the allowance made for dynamic loading is higher than that for structures used with manually operated hoists. It is therefore important to ensure that power operated appliances are not used on structures or lifting points designed for manually operated equipment without a due allowance being made. To avoid confusion, it is recommended that the SWL marking should include the word ‘MANUAL’ or ‘POWER’ as appropriate.