Crush hazards surrounding the disabled lift
The maximum gaps between moving parts and the pit should be less than 10mm, generally Sesame designs all gaps to be between 6mm and 8mm.
All adjacent surfaces should conform to the following or else will be deemed to be a potential crush-hazard:
- Up to a 1.5mm of overhang/protrusion
-Greater than a 1.5mm less than 5mm overhang must be chamfered at 15degrees.
-Be less than 10mm or greater than 100mm away from a moving edge.
Any projections deemed to be a crush-hazard must conform to the following:
-Be made smooth, continuous and free of overhangs. The continuous surface must then either be moved to within 10m of the lift or moved to at least 100mm from any moving parts of the lift.
- If a continuous surface is not achievable then the crushing hazard must be moved to at least 300mm from the edge of the lift, or the lift table must be fitted with a safety edge.
Local crushing hazards are typically handrails or overhangs on adjacent walls and structures.
NOTE: Sesame designers will provide detailed guidance on these issues.
For Example, if a handrail local to the lift presents a crush hazard as detailed above then the handrail must either be 300mm away from the retracting stairs and the disabled lift, or the Sesame disabled lift should have a safety edge to detect the hazard. If the handrail however does not present a crush zone (a plumb flush solid stainless steel bar handrail) then it can sit either less than 10mm or more than 100mm away.