
A
6 ft
(1.8 m)
Length of Energy Absorbing Lanyard
Original working length before a fall event occurs/before activation of energy absorber
B
5 ft
(1.5 m)
Elongation/Deceleration Distance
Maximum allowable amount of elongation that may payout from the energy absorber
upon activation during a fall event
C
1 1/2 ft
(0.5 m)
Harness Stretch and Dorsal D-Ring Shift
Combined amount of harness webbing elongation and dorsal back D-ring up-shift during
entire fall event
D
5 ft
(1.5 m)
Height of Dorsal D-ring
Typical average height of the dorsal D-Ring on a user’s
full body harness measured from the walking/working surface up
E
1 1/2 ft
(0.5 m)
Safety Factor
Added length to account for other factors such as an improperly adjusted harness, actual
worker height or worker weight
F
19 ft
(5.8 m)
Total Minimum Clear Fall Distance Required
1. Walking/Working Surface 2. Nearest Lower Level or Obstruction
Figure 2 - Minimum Clear Fall Requirement: 12 ft Energy Absorbing Lanyard
Measured from Foot Level Anchorage Connector
MFBH04 Rev A
121219
16
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http://www.bestmaterials.com | 1-800-474-757
http://www.bestmaterials.com | 1-800-474-7570
[email protected] | http://www.bestmaterials.com | 1-800-474-7570