373 Каталог HOFFMANN GROUP 2020 Промышленные средства индивидуальной защиты Стр.373

Каталог HOFFMANN GROUP 2020 Средства индивидуальной защиты Стр. 373 0373 Lab2u

SGD Hoffmann Group 51 When personal protective equipment is used to limit injuries due to falls, the target is always: limit the drop distance. Without a fall shock absorber, even a drop of 0.5 m creates a force on the person equivalent to dropping a 1.2 t weight on him. With a fall shock absorber the force is equivalent to a maximum of up to 600 kg. This weight determines the force of the arrest shock, which can cause serious injuries to the wearer. The drop factor corresponds to the relationship between the drop length and the system length. The force of the arrest shock increases the drop factor. In the ideal case the drop factor should be 1. o Example A: A badly chosen anchor point generates a drop length of 4 m. Example B: Here a drop height of 2 m is achieved by the well positioned attachment point. Example C: Here a drop height of 0 m is achieved by the well positioned attachment point and the safety harness. Fall factor Drop length 2 m + 2 m 4 m System length 2 m 2 m Fall factor Drop length 2 m System length 2 m Fall factor Drop length 0 m System length 1 m = 0 Example A illustrates how the high fall factor results in a long braking distance which leads almost certainly to serious injury. Examples B and C show how the correct positioning of the attachment point means that the fall is safely checked and the distance from the ground is significantly increased. Furthermore, the drop factor and the forces arising from the arrest shock are significantly reduced. 2 1 Height of the attachment point 6 m - 2.00 m system length - 1.75 m braking distance - 1.80 m body height = 0.45 m distance from the ground Height of the attachment point 7 m - 2.00 m system length - 1.20 m braking distance - 1.80 m body height = 2.00 m distance from the ground Height of the attachment point 8 m (above head height) - 2.00 m combination of the length of the system and length of the body = 6.00 m distance from the ground Attachment point EN 795 Connections with fall shock absorber Attachment point EN 795 Connections with fall shock absorber Attachment point EN 795 Connectors safety harness to EN 360, tensioned 8 m 2 m 373 6 m 4 m