Qualcraft Stingray Anchor - Manual (Page 9)

FALL CLEARANCE CALCULATION
Lanyard length
(6’ total)
Safety factor
(3’ total)
Deceleration
distance (4’ total)
Height of harness
dorsal D-ring from
worker’s feet
(6’ total)
Required
distance
from
anchorage
(19’ total)
Limitations
Fall Clearance: There must be sufficient
clearance below the anchorage connector
to arrest a fall before the user strikes the
ground or an obstruction. When
calculating fall clearance, account for a
MINIMUM 3’ safety factor, deceleration
distance, user height, length of
lanyard/SRL, and all other applicable
factors.
Diagram shown is an example
fall clearance calculation ONLY.
Swing Falls: Prior to installation or use, make considerations for eliminating or minimizing all
swing fall hazards. Swing falls occur when the anchor is not directly above the location where a
fall occurs. Always work as close to in line with the anchor point as possible. Swing falls
significantly increase the likelihood of serious injury or death in the event of a fall.
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9
80
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: (
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-6
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5
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ax
: (
80
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6
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7
Fall Clearance:
Stingray Anchor and Absorbinator HLL System
70-80 18' 7'
80-90 19' 8"
90-100 20' 10"
*Clearance Table Using a
Self-Retracting Lifeline (SRL)
Span (FT) Required Distance
0-10 10' 11"
10-20 12' 0"
20-30 13' 1"
30-40 14' 2"
40-50 15' 4"
50-60 16' 5"
60-70 17' 6"
*This table only applies
when SRL and HLL are
located above harness
dorsal D-ring.
60-65 26' 1" 27' 1" 28' 1" 29' 1"
65-70 26' 8" 27' 8" 28' 8" 29' 8"
70-75 27' 5" 28' 5" 29' 5" 30' 5"
75-80 28' 0" 29' 0" 30' 0" 31' 0"
80-85 28 8" 29' 8" 30' 8" 31' 8"
85-90 29' 4" 30' 4" 31' 4" 32' 4"
90-95 30' 0" 31' 0" 32' 0" 33' 0"
95-100 30' 7" 31' 7" 32' 7" 33' 7"
Clearance Table Using Energy Absorbing Lanyards
Span Length
(FT) 3 FT
Lanyard 4 FT
Lanyard 5 FT
Lanyard 6 FT
Lanyard
0-10 18' 10" 19' 11" 20' 11" 21' 11'
10-15 19' 7" 20' 7" 21' 7" 22' 7"
15-20 20' 2" 21' 2" 22' 2' 23' 2"
20-25 20' 11" 21' 11" 22' 11" 23' 11"
25-30 21' 6" 22' 6" 23' 6" 24' 6"
30-35 22' 2" 23' 2" 24' 2" 25' 2"
35-40 22' 10" 23' 10" 24' 10" 26' 10"
40-45 23' 6" 24' 6" 25' 6" 27' 6"
45-50 24' 1" 25' 1" 26' 1" 28' 1"
50-55 24' 10" 25' 10" 26' 10" 28' 1-"
55-60 25' 5" 26' 5" 27' 5" 29' 5"