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Chart 1: Additional Fall Clearance Due to Swing Fall (feet) Overhead Anchorage
60
0
0
55
0
0
50
0
0
45
0
0
40
0
0
35
0
0
30
0
0
25
0
0
20
0
0
15
0
0
10
0
0
5
0
0
Dorsal
0
2
D-Ring
0
2
X-Axis: Lateral Work Zone Radius (ft)
2 foot increments along the X-Axis represent the distance the user is
working away from being directly under the SRD
To find the additional fall clearance needed to compensate for potential Swing Fall, note the starting location on Chart 1 titled Dorsal D-Ring
Example:
If the user needs to work 18 feet away from directly under the SRD, the SRD needs to be anchored at least 35 feet above the user's Dorsal D-Ring.
Therefore, 4 feet of additional fall clearance should be added to the sub-total calculation in Figure 4.
Example:
If the only suitable overhead anchorage for the SRD is 50 feet above the user's Dorsal D-Ring, the maximum allowable work zone is 20 feet away
from directly overhead. Therefore, 4 feet of additional fall clearance should be added to the sub-total calculation in Figure 4.
Key to Work Zone Areas:
MCS03 Rev B
0
0
1
1
1
0
0
1
1
1
0
0
1
1
1
0
0
1
1
2
0
0
1
1
2
0
1
1
1
2
0
1
1
2
2
0
1
1
2
3
0
1
2
2
3
1
1
2
3
4
1
2
3
4
6
1
3
4
6
8
4
6
8
10
12
4
6
8
10
12
Using Chart 1 to Find Additional Fall Clearance: Overhead Anchorage
= Allowable Use Area
2
2
3
4
4
2
2
3
4
5
2
2
3
4
5
2
3
3
4
5
2
3
4
5
6
3
3
4
5
6
3
4
5
6
7
4
5
6
7
8
4
6
7
8
10
6
7
8
10
12
7
9
11
12
14
10
12
14
16
18
14
16
18
20
22
14
16
18
20
22
5 foot increments up the Y-Axis represent the SRD Anchorage height
above the user's Dorsal D-Ring
= Cautionary Use Area
050120
5
6
7
8
9
5
6
7
8
9
5
6
7
8
9
6
7
8
9
10
7
8
9
10
11
7
9
10
11
12
8
10
11
12
14
10
11
13
14
16
11
13
14
16
18
13
15
17
19
20
16
18
20
22
24
20
21
23
25
27
24
26
28
30
32
24
26
28
30
32
= Not Allowed Use Area
10
10
10
11
12
14
15
17
19
22
25
29
34
34
8
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