Fall arrest systems
Belt energy absorbers for fall arrest systems: Reduce drop height
The SP-140 lanyard for fall arrest systems from Spanset also complies with the EN 355 standard for users weighing up to 140 kg. In accordance with the EN 361 standard, harnesses are tested with a 100 kg steel torso. This torso falls through a specified fall distance of 4 meters and is then caught by a rope without fall attenuation. The force exerted on the torso must be at least 1.5 tons (15 kN) - the human body would not survive such a fall. A braking mechanism therefore limits the force acting on the person to a maximum of 600 kg (6 kN).
According to the manufacturer, this is precisely where the SP-140 lanyard with energy absorber comes in. Not only does it comply with the EN 355 standard, but the permissible values were even undercut by more than 17 percent in the 100 kg test. And even in a test with 140 kg, the standard values (6 kN and 1.75 m) were complied with. A specially developed shock absorber ensures that the lanyard cannot extend by the maximum 1.75 m permitted by the standard, but only by a maximum of 1.10 m. This means that the maximum fall distance is reduced by 0.65 meters. sw
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