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Using the VLL will require a total fall clearance of approximately 6.1 m as measured from the working level to the nearest
obstruction below. The total fall clearance combines the sum of the length of fall arrester (0.5 m), the rope grab slip distance
(1.0 m), the maximum deceleration of the fall arrester and harness (1.8 m), the average height from dorsal D-ring to worker's
foot (1.8 m), and the safety factor (1.0m).
To minimize the possibility of a swing fall, work as directly under the anchorage connector as possible. Striking objects
horizontally, due to the pendulum effect, may cause serious injury. Swing falls also increase the vertical fall distance of a
worker, compared to a fall directly below the anchorage connector. Swing falls may be reduced by using overhead anchorage
connectors that move with the worker.
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