Principper for at beskytte farlige punkter fra farer

Barriers are intended to be used to direct pedestrian traffic to prevent pedestrians to come into non-safe Zones. E.g. a guide rail to preventing pedestrian cross-traffic from walking into an opening swing door. Barriers need to be designed:

  • So children cannot easily climb under or jump over
  • To be suitable secured and withstand forces in normal service
  • To have a minimum height of 900 mm

 

Guards can be used to prevent a pedestrian to reach danger points, e.g. a pocket screen. Guard shall be designed to:

  • Protect up to 2,5 meters
  • Can only be removed or opened with a tool
  • Do not cause additional hazards

 

Safety Distances to prevent crushing, and drawing-in are:

  • distance ≤ 8 mm, or distance > mm for fingers
  • distance ≥ 200 mm for the head
  • distance ≥ 500 mm for the body

 

Limitation of forces for impact to permissible levels can be done by:

  • limit door speeds and increase buffer zones
  • monitored sensor


Low energy movement is generally not protected with addition protective devices, if:

  • the risk assessment shows that the risk for elderly, frail and disabled users is low
  • preventing a stopped door, to open or close, does not exceed 67 N at the main edge (a static closing force of 150 N, is allowed between closing and counter closing edge, from 8 mm for a swing door, and 50 mm for a sliding door)
  • During an interruption of mains, or failure, opening forces at the main edge does not exceed 67 N to release a latch and 90 N to open the door
  • The kinetic energy of the door leaf is ≤ 1,69 Joperation time for swingers, from closed to back check, or fully open to latch check, is not less than 3 seconds.
  • Latch check for swingers is not less than 1,5 seconds.