Fall Calculations

fall arrest

Personal Fall Arrest System Anchorage Points

Dentec Safety

Calculating Fall Clearance Distance Using a Retractable Lifeline

  • First, add the maximum free fall distance (2 ft.) with a retractable lifeline to the maximum deceleration distance (3-1/2 ft.) to the average height of a worker (6 ft.).
  • Then, add a safety factor of 3 ft. to allow for the possibility of an improperly fit harness, a taller than average worker and/or a miscalculation of distance.
  • The total, 14-1/2 ft. is the suggested safe fall clearance distance for this example.
Part #Description
16STL15-SRL15′ SRL Tagline
16STL20-SRL20′ SRL Tagline
16STL25-SRL25′ SRL Tagline
16STL30-SRL30′ SRL Tagline
16STL50-SRL50′ SRL Tagline
16STL100-SRL100′ SRL Tagline

Personal Fall Arrest System Anchorage Points

Dentec Safety

Calculating Fall Clearance Distance Using a Shock-Absorbing Lanyard and D-Ring Anchorage Connector

  • First, add the length of the shock-absorbing lanyard (6 ft.) to the maximum elongation of the shock absorber during deceleration (3-1/2 ft.) to the average height of a worker (6 ft.).
  • Then, add a safety factor of 3 ft. to allow for the possibility of an improperly fit harness, a taller than average worker and/or a miscalculation of distance.
  • The total, 18-1/2 ft. is the suggested safe fall clearance distance for this example.
Part #Description
16ATLD2-1525′ Tagline / 10′ Coated Orange / 15′ Yellow Tube
16ATLD2-2025′ Tagline / 10′ Coated Orange / 15′ Yellow Tube
16ATLD2-2525′ Tagline / 10′ Coated Orange / 15′ Yellow Tube
16ATLD2-3030′ Tagline / 15′ Coated Orange / 15′ Yellow Tube
16ATLD2-3535′ Tagline / 15′ Coated Orange / 20′ Yellow Tube
16ATLD2-4040′ Tagline / 20′ Coated Orange / 20′ Yellow Tube

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