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Figure 9 - Fall Clearance for SRDs (Small System Setback)
X
R
€
X < R
or
X ≤ H
€
B
H
FC
≤ 310 lb.
x 1
(140 kg)
0 ft. - <3 ft.
≤ 10 ft.
15 ft. 0 in.
(3.05 m)
(4.56 m)
≤ 20 ft.
16 ft. 1 in.
(6.10 m)
(4.91 m)
≤ 30 ft.
17 ft. 3 in.
(9.14 m)
(5.26 m)
B
≤ 40 ft.
18 ft. 5 in.
(12.19 m)
(5.62 m)
≤ 50 ft.
19 ft. 7 in.
(15.24 m)
(5.96 m)
≤ 60 ft.
20 ft. 9 in.
(18.29 m)
(6.32 m)
≤ 310 lb.
x 2
(140 kg)
0 ft. - <3 ft.
≤ 10 ft.
(3.05 m)
≤ 20 ft.
(6.10 m)
≤ 30 ft.
(9.14 m)
B
≤ 40 ft.
(12.19 m)
≤ 50 ft.
(15.24 m)
≤ 60 ft.
(18.29 m)
11
B
System Span
H
System Height
X
Setback Distance
R
SRD Retracted Length
FC
Required Fall Clearance
H
3 ft. - <5 ft.
5 ft. - <6.5 ft.
11 ft. 10 in.
8 ft. 11 in.
(3.6 m)
(2.71 m)
13 ft. 0 in.
10 ft. 1 in.
(3.95 m)
(3.06 m)
14 ft. 1 in.
11 ft. 2 in.
(4.3 m)
(3.41 m)
15 ft. 3 in.
12 ft. 4 in.
(4.65 m)
(3.76 m)
16 ft. 5 in.
13 ft. 5 in.
(5.01 m)
(4.09 m)
17 ft. 7 in.
14 ft. 6 in.
(5.35 m)
(4.41 m)
FC
H
3 ft. - <5 ft.
5 ft. - <6.5 ft.
13 ft. 0 in.
10 ft. 1 in.
(3.95 m)
(3.06 m)
15 ft. 3 in.
12 ft. 4 in.
(4.65 m)
(3.77 m)
17 ft. 7 in.
14 ft. 4 in.
(5.36 m)
(4.37 m)
19 ft. 11 in.
15 ft. 10 in.
(6.06 m)
(4.82 m)
21 ft. 6 in.
17 ft. 3 in.
(6.56 m)
(5.27 m)
23 ft. 0 in.
18 ft. 9 in.
(7.01 m)
(5.71 m)
FC
≥6.5 ft.
6 ft. 8 in.
(2.04 m)
7 ft. 10 in.
(2.39 m)
8 ft. 11 in.
(2.71 m)
9 ft. 11 in.
(3.02 m)
10 ft. 11 in.
(3.32 m)
11 ft. 10 in.
(3.62 m)
≥6.5 ft.
7 ft. 10 in.
(2.39 m)
9 ft. 8 in.
(2.94 m)
11 ft. 1 in.
(3.38 m)
12 ft. 8 in.
(3.85 m)
14 ft. 2 in.
(4.31 m)
15 ft. 8 in.
(4.77 m)
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