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E. FALL CLEARANCE: Ensure suffi cient clearance exists in your fall path to prevent striking
an object during a fall. The clearance required is dependent upon the subsystem (rope grab
and lanyard, rope grab and carabiner) and lifeline properties. Table 2 shows the approximate
elongation for new DBI/SALA lifelines in dry conditions. The elongation specifi ed is for an
applied static load of 1,800 lbs (8 kN). Wet ropes generally have more elongation than dry
ropes. Allow for additional elongation in wet or humid conditions. Lifeline elongation must be
considered when estimating fall clearance.
Lifeline Material
5/8" Polyester/Polypropylene
3/4" Polyester/Polypropylene
5/8" Polyester
3/4" Polyester
12 mm Nylon
12 mm Polyester
3/8" Wire Rope
5/16" Wire Rope
F. SHARP EDGES: Avoid working where your lifeline, lifeline subsystem, or other system
components will be in contact with, or abrade against, unprotected sharp edges. Do not loop
a lifeline around small diameter structural members. If working with this equipment around
sharp edges is unavoidable, provide protection by using a heavy pad over the exposed sharp
edge.
G. RESCUE: The employer must have a rescue plan and the ability to implement it.
H. AFTER A FALL: Components which have been subjected to fall arrest forces must be
removed from service and destroyed.
I. GENERAL USE CONSIDERATIONS: Avoid working where your lifeline may cross or tangle
with that of another worker. Do not allow your lifeline to pass under your arms or between
your feet.
3.3 MAKING CONNECTIONS: See Figure
6. When using a hook to connect
components or to an anchorage, ensure
roll-out cannot occur. Self locking snap
hooks and carabiners should be used to
reduce the possibility of roll-out. Do not
tie a knot in the lifeline. Do not attach a
snap hook directly to a horizontal lifeline.
Follow manufacturer's instructions for
each component of the system.
A. CONNECTING TO AN ANCHORAGE
OR ANCHORAGE CONNECTOR:
Lifelines or lifeline subsystems
supplied with connecting hooks
should be connected to the anchorage
in accordance with section 3.3.
Lifelines supplied without hooks
must have a hook or anchorage
connector spliced directly to the
lifeline. See Figure 7. Connectors
attached to synthetic rope lifelines
must be attached using a spliced
eye termination and thimble. The
Table 2 - Lifeline Elongation
25
50
(7.6)
(15.2)
(22.9)
2.5 (0.8)
5 (1.5)
7.5 (2.3)
3 (0.9)
6 (1.8)
9 (2.7)
2.75 (0.8)
5.5 (1.7)
8.25 (2.5)
3.5 (1.1)
7 (2.1)
10.5 (3.2)
6.75 (2.1)
13.5 (4.1)
20.25 (6.2)
6.25 (1.9)
12.5 (3.8)
18.75 (5.7)
—
—
—
—
Lifeline Length ft. (m)
75
100
150
(30.5)
(45.7)
10 (3.0)
15 (4.6)
12 (3.7)
18 (5.5)
11 (3.4)
16.5 (5.0)
14 (4.3)
21 (6.4)
27 (8.2)
40.5 (12.3)
25 (7.6)
37.5 (11.4)
—
0.43 (0.13)
0.65 (0.2)
—
0.5 (0.2)
0.75 (0.23)
Figure 6 - Making Connections
Anchorage
Carabiner
Anchorage
Tie-Off Adaptor
Snap Hook
Lifeline
Lifeline
6
200
250
(61.0)
(76.2)
(91.4)
20 (6.1)
25 (7.6)
30 (9.1)
24 (7.3)
30 (9.1)
36 (11)
22 (6.7)
27.5 (8.4)
33 (10.1)
28 (8.5)
35 (10.7)
42 (12.8)
54 (16.5)
67.5 (20.6)
81 (24.7)
50 (15.2)
62.5 (19.1)
75 (22.9)
0.86 (0.26)
1.07 (0.33)
1.29 (0.39)
1 (0.3)
1.25 (0.38)
1.5 (0.45
Anchorage
Snap Hook
Lifeline
300
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