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> Grigri EN 15151-1
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This European Standard EN 15151 "Mountaineering equipment - Braking devices" consists of:
Part 1: Braking devices with assisted locking, safety requirements and test methods;
Part 2: Manual braking devices, safety requirements and test methods.
czyli:
Część 1: Urządzenia hamujące z blokadą wspomaganą ręcznie, wymagania bezpieczeństwa i metody badań
i
Część 2: Ręczne urządzenia hamujące, wymagania bezpieczeństwa i metody badań
a z tego, co da się podejrzeć w normie UIAA 129:
1.3.1. Manual braking device
Device controlled by hand force applied to the free end of the rope that produces a
magnified force in the active rope in a continuous and reversible manner, such that when
the force in the free end of the rope is reduced to zero, the force in the active rope
becomes negligibly small
1.3.2. Locking assisted braking device
Device which acts as a manual braking device at low rope velocities, but at higher
velocities, combined with hand control of the free end of the rope, produces a change in
device geometry or in rope geometry, such that the rope movement slows down until
arrested.
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