SafeWaze NORTHSTAR CLASSIC SRL, Instruction Manual

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Copyright Safewaze 2022
Page 8 Page 9
Lateral Offset Distance (Y) In Feet
0 2 4 6 8 10 15 20 25
70
7’ 6”
(2.3 m)
8’ 1”
(2.5 m)
8’ 3”
(2.5 m)
8’ 4”
(2.6 m)
8’ 6”
(2.6 m)
8’ 8”
(2.7 m)
9’ 7”
(3 m)
10’ 9”
(3.3 m)
12’ 4”
(3.8 m)
60
7’ 6”
(2.3 m)
8’ 1”
(2.5 m)
8’ 3”
(2.5 m)
8’ 4”
(2.6 m)
8’ 6”
(2.6 m)
8’ 9”
(2.7 m)
9’ 9”
(3 m)
11’ 3”
(3.4 m)
13’ 1”
(4 m)
50
7’ 6”
(2.3 m)
8’ 1”
(2.5 m)
8’ 3”
(2.5 m)
8’ 5”
(2.6 m)
8’ 9”
(2.7 m)
9’ 3”
(2.8 m)
10’ 5”
(3.2 m)
12’ 2”
(3.7 m)
14’ 2”
(4.3 m)
40
7’ 6”
(2.3 m)
8’ 1”
(2.5 m)
8’ 3”
(2.5 m)
8’ 5”
(2.6 m)
8’ 9”
(2.7 m)
9’ 3”
(2.8 m)
10’ 8”
(3.3 m)
12’ 8”
(4 m)
15’ 3”
(4.7 m)
30
7’ 6”
(2.3 m)
8’ 2”
(2.5 m)
8’ 4”
(2.6 m)
8’ 7”
(2.7 m)
9’ 1”
(2.8 m)
9’ 7”
(3 m)
11’ 6”
(3.5 m)
14’ 2”
(4.3 m)
17’ 2”
( 5.2 m)
20
7’ 6”
(2.3 m)
8’ 2”
(2.5 m)
8’ 5”
(2.6 m)
9’
(2.7 m)
9’ 6”
(3 m)
10’ 5”
(3.2 m)
13’ 1”
(4 m)
16’ 4”
(5 m)
20’ 1”
(6.1 m)
10
7’ 6”
(2.3 m)
8’ 3”
(2.5 m)
8’ 9”
(2.7 m)
9’ 8”
(3 m)
10’ 9”
(3.3 m)
12’ 2”
(3.7 m)
16’ 1”
(5 m)
20’ 5”
(6.2 m)
25’
(7.6 m)
8
7’ 6”
(2.3 m)
8’ 3”
(2.5 m)
9’
(2.7 m)
10’ 1”
(3.1 m)
11’ 4”
(3.5 m)
12’ 9”
(4 m)
17’ 1”
(5.2 m)
21’ 6”
(6.6 m)
26’ 3”
(8 m)
FIGURE 2 - EXAMPLE MINIMUM REQUIRED FALL CLEARANCE CALCULATION
(CLASS 1 SRL)
Fall Clearance: There must be sufficient clearance below the anchorage connector to arrest a fall before the user strikes the ground or an obstruction.
Figure 2 illustrates a typical Fall Clearance calculation based on the ANSI Z359.14-2021 prescribed Maximum Allowed Free Fall of 24 in. and Maximum Allowed
Arrest Distance of 42 in. Fall Clearance calculations may vary dependent upon the SRL being used. It is essential that the correct Arrest Distance is used to
determine Minimum Required Fall Clearance.
ANSI Z359.14, ANSI A10.32 OSHA 1910.66, OSHA 1926.502
020051
ANSI Z359.14, ANSI A10.32 OSHA 1910.66, OSHA 1926.502
020051
A
C
B
A
24”
(61 cm)
Maximum Allowed Free Fall per ANSI Z359.14-2021
B
42”
(107 cm)
Maximum Allowed Arrest Distance per ANSI Z359.14-2021
C
24”
(61 cm)
Safewaze Safety Factor
D
7’ 6”
(2.3 m)
Sub-Total for Minimum Required Fall Clearance
E 0
*Additional Fall Clearance for Swing Fall
(If swing fall hazard exists refer to Table 9)
F
7’ 6”
(2.3 m)
Total Fall Clearance Required
Northstar Classic SRL Minimum Required Fall Clearance
TABLE 8 - ANSI ABOVE D-RING MINIMUM REQUIRED FALL CLEARANCE BASED ON MAX ARREST DISTANCE OF 42”
SRL
Anchorage
Height
Above Dorsal D-ring (X) In Feet
Minimum Required Fall Clearance (Z) In Feet