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Minimum Required
fall Clearance from
working sur face(Z)
Example 1: Worker is anchored 9 ft (2.7 m) overhead with a 2 ft (0.6 m)
offset from center = 8' Required minimum fall clearance.
Example 2: Worker is anchored at foot level with a 2 ft (0.6 m)
offset from center = 20 ft (6.1 m) required minimum fall clearance.
WARNING: Considerations for Twin SRL 100% tie-off applications include the following:
• Never connect both SRL Lanyards to the same anchorage point
• Connecting more than one connector into a single anchorage (ring or eye) can jeopardize compatibility of
the connection due to interaction between connectors and is not recommended.
• Connection of each SRL lifeline to a separate anchorage point is acceptable while in transition.
• Never connect more than one person at a time to the Twin SRL system
• Do not allow the lifelines to become tangled or twisted together as this may prevent them from retracting.
• Do not allow any lifeline to pass under arms or between legs during use.
Refer to the user manual for more information.
15) PURPOSE AND APPLICATION
DEWALT SRL's are used to safely expand the working
area, where a harness with a 6 foot (1.8 M) lanyard
is inadequate. Hence the lifeline extends to the
required length, as per use. When the length is
shortened, the line retracts into its casing, ensuring
that there is no slack in the line. More importantly,
the SRL is designed to immediately arrest the fall of
the user, and also to limit the shock loading on to
the body of the user. The SRL is a part of the personal
fall arrest system, along with other components like
full body harness and anchorage connector.
8
SRL CLEARANCE CHA RT
(Required minimum clearance to obstruction below worker)
2.7 m
2.4 m
2.1 m
1.8 m
1.5 m
1.2 m
9
8
7
6
5
9
(2.7 m)
8
(2.4 m)
7
(2.1 m)
6
(1.8 m)
5
(1.5 m)
4
(1.2 m)
3
(0.9 m)
2
(0.6 m)
1
(0.3 m)
0
1
(0.3 m)
2
(0.6 m)
3
(0.9 m)
4
(1.2 m)
5
(1.5 m)
© 2023 DEWALT Industrial Tool Co.DEWALT® is a registered trademark of the DEWALT Industrial Tool Co., used under license.
(OFFSET FROM CENTER OF WORKER)
0.9 m
0.6 m
0.3 m
0.3 m 0.6 m 0.9 m 1.2 m 1.5 m 1.8 m 2.1 m 2.4 m 2.7 m
4
3
2
1
0
2
3
4
1
EX.1
6 ft
1.8 m
8 ft
2.4 m
CLASS 1
10 ft
3.0 m
14 ft
CLASS 2
16 ft
20 ft
EX.2
REQUIRED MINIMUM
FALL CLEARANCE AS
PER ABOVE DATA
OBSTRUCTION
16) LIMITATION OF USE OF DEWALT
SRL's
DEWALT SRL's are to be used as part of personal fall
arrest, restraint, rescue or work positioning systems.
Full Body harnesses, connectors, hooks, lanyards,
etc. are designed in such a way that they work in
sync with other elements of a personal fall arrest
system. While the SRL's are designed to arrest a fall
from height they also minimize the impact load on
the wearer. DEWALT recommends that only those
components or sub systems of the personal fall
arrest system which are manufactured by DEWALT
be used in combination. If other manufacturer's
equipment are used, then they should be ensured
for compatibility by a qualified person only. If
substitutions or replacements are made with non-
approved components of sub systems then this may
severely affect the compatibility of the equipment,
making the complete system unsafe for use.
5
6
7
8
9
9
(2.7 m)
8
(2.4 m)
7
(2.1 m)
6
(1.8 m)
5
(1.5 m)
4
(1.2 m)
12 ft
3
(0.9 m)
3.6 m
2
(0.6 m)
1
(0.3 m)
0
1
4.2 m
(0.3 m)
2
(0.6 m)
4.8 m
3
(0.9 m)
4
6.1 m
(1.2 m)
5
23 ft
7.0 m
(1.5 m)
FOOT LEVEL
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