* Use Chart 9 to calculate Additional Fall Clearance due to Swing Fall
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Figure 9A:
Calculating Required Fall Clearance: SRL-LE
Non-Leading Edge Overhead Conditions
A
B
C
D
E*
F
3½
ft
1
ft
1½
ft
6
ft
___
ft
___
ft
Deceleration Distance
Maximum allowable length of cable or web that may payout from the SRD
once deceleration of the user has begun and after a fall event occurs.
For work in low clearance areas, see Table 1B for Typical Performance
Dorsal D-Ring Shift and FBH Stretch
Combined amount of Dorsal D-ring up-shift and harness webbing
elongation during entire fall event
Safety Factor
Added length to account for other factors such as an improperly adjusted
harness, actual worker height or worker weight
Sub Total- Minimum Required Fall Clearance
for direct overhead use of SRD with No Swing Fall; sum of A, B and C only
*Additional Fall Clearance Calculation
due to Swing Fall (using Chart 9)
Total Required Fall Clearance
Including sub-total D and Swing Fall E (from Chart 9)
1. Overhead Anchorage 2. Walking/Working Surface 3. Nearest Lower Level or Obstruction
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APPENDIX A
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