A
310 lbs Maximum User Capacity
Non-Overhead Anchorage
C
B
D
E
F
G*
H
3
ft
1
ft
11
ft
2
ft
3½ ft
1½ ft
Free Fall Distance
due to below D-ring Anchorage Condition
Deceleration Distance
Maximum allowable length of cable that may payout from the SRD once
deceleration of the user has begun and after a fall event occurs
Additional Deceleration Distance
due to below D-ring Anchorage Condition
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 non-overhead use of SRD with No Swing Fall (sum of A thru E only)
*Additional Fall Clearance Calculation
due to Swing Fall (using Chart 1)
Total Required Fall Clearance
Including sub-total F and Swing Fall G (from Chart 1)
FS9C3B.1
TS9C3B.1
* If a potential Swing Fall Hazard condition is also present, additional Fall Clearance is needed in the above
calculation; see Chart 1 for calculating this additional required distance
1. Overhead Anchorage 2. Walking/Working Surface 3. Nearest Lower Level or Obstruction
Figure 3B:
Calculating Minimum Required Fall Clearance 9’ Cable SRD
APPENDIX A
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