13
User Instructions - English
Fall Clearance
from Horizontal Lifeline
to Next Lower Level
Total Fall Clearance Required*
for One to Two Workers
when using a
Shock-Absorbing Lanyard
with a Xenon HLL
Single Shock Absorber System
Single-Span Systems
System/
Span
Length**
[ft (m)]
Length of Lanyard
3ft
(.9m)
4ft
(1.2m)
5ft
(1.5m)
6ft
(1.8m)
10
(3m)
14’-7”
(4.45m)
15’-7”
(4.75m)
16’-7”
(5.05m)
17’-7”
(5.36m)
15
(4.5m)
15’-1”
(4.6m)
16’-1”
(4.9m)
17’-1”
(5.21m)
18’-1”
(5.51m)
20
(6.1m)
15’-6”
(4.72m)
16’-6”
(5.03m)
17’-6”
(5.33m)
18’-6”
(5.64m)
25
(7.6m)
15’-11”
(4.85m)
16’-11”
(5.17m)
17’-11”
(5.46m)
18’-11”
(5.77m)
30
(9.1m)
16’-3½”
(4.97m)
17’-3½”
(5.27m)
18’-3½”
(5.58m)
19’-3½”
(5.88m)
Multiple-Span Systems (with 30 ft. spans)
System
Length**
[ft (m)]
Length of Lanyard
3ft
(.9m)
4ft
(1.2m)
5ft
(1.5m)
6ft
(1.8m)
30
(9.1m)
16’-3½”
(4.97m)
17’-3½”
(5.27m)
18’-3½”
(5.58m)
19’-3½”
(5.88m)
60
(18.2m)
16’-6½”
(5.04m)
17’-6½”
(5.35m)
18’-6½”
(5.65m)
19’-6½”
(5.96m)
90
(27.4m)
16’-9”
(5.11m)
17’-9”
(5.41m)
18’-9”
(5.72m)
19’-9”
(6.02m)
120
(36.5m)
16’-11½”
(5.17m)
17’-11½”
(5.48m)
18’-11½”
(5.78m)
19’-11½”
(6.08m)
150
(45.7m)
17’-1½”
(5.22m)
18’-1½”
(5.53m)
19’-1½”
(5.83m)
20’-1½”
(6.13m)
180
(54.8m)
17’-3½”
(5.27m)
18’-3½”
(5.58m)
19’-3½”
(5.88m)
20’-3½”
(6.19m)
210
(64m)
17’-5”
(5.31m)
18’-5”
(5.61m)
19’-5”
(5.92m)
20’-5”
(6.22m)
240
(73.1m)
17’-7”
(5.36m)
18’-7”
(5.66m)
19’-7”
(5.97m)
20’-7”
(6.27m)
270
(82.2m)
17’-8½”
(5.4m)
18’-8½”
(5.7m)
19’-8½”
(6.01m)
20’-8½”
(6.31m)
300
(91.4m)
17’-10”
(5.44m)
18’-10”
(5.74m)
19’-10”
(6.05m)
20’-10”
(6.35m)
330
(100.5m)
17’-11½”
(5.47m)
18’-11½”
(5.78m)
19’-11½”
(6.08m)
20’-11½”
(6.39m)
360
(109.7m)
18’-1”
(5.51m)
19’-1”
(5.82m)
20’-1”
(6.12m)
21’-1”
(6.43m)
390
(118.8m)
18’-2”
(5.54m)
19’-2”
(5.84m)
20’-2”
(6.15m)
21’-2”
(6.45m)
420
(128m)
18’-3½”
(5.58m)
19’-3½”
(5.88m)
20’-3½”
(6.19m)
21’-3½”
(6.49m)
450
(137.1m)
18’-4½”
(5.6m)
19’-4½”
(5.91m)
20’-4½”
(6.21m)
21’-4½”
(6.52m)
480
(146.3m)
18’-6”
(5.64m)
19’-6”
(5.94m)
20’-6”
(6.25m)
21’-6”
(6.55m)
510
(155.4m)
18’-7”
(5.66m)
19’-7”
(5.97m)
20’-7”
(6.27m)
21’-7”
(6.58m)
6.0 Fall Clearance
Always know your fall clearance
before proceeding with the use of a
horizontal lifeline system.
Shock-Absorbing Lanyard Fall Clearance:
Fall clearance requirements when using a
shock-absorbing lanyard are taken from the
horizontal lifeline to the next lower level below
the work surface.
Fall clearance calculations are based on the
length and deflection of the lifeline, the length
of the lanyard being used, a 3-1/2 ft. (1.07m)
maximum deceleration distance, the number
of workers connected to the system, and an
average worker height of 6 ft. (1.8m).
~IMPORTANT~
Miller Fall Protection
always recommends that
a 3 ft. (.9m) safety factor
be added to all
fall clearance calculations
provided in these tables.
If, in your particular application, there is
not adequate fall clearance to ensure maxi-
mum worker safety, contact Miller Techni-
cal Services to discuss your options. Any
variations to the horizontal lifeline system
must be approved by Miller Fall Protection.
Total Fall Clearance Required*
for Three to Four Workers
when using a
Shock-Absorbing Lanyard
with a Xenon HLL
Double Shock Absorber System
Single-Span Systems
System/
Span
Length**
[ft (m)]
Length of Lanyard
3ft
(.9m)
4ft
(1.2m)
5ft
(1.5m)
6ft
(1.8m)
10
(3m)
15’-5”
(4.7m)
16’-5”
(5m)
17’-5”
(5.31m)
18’-5”
(5.61m)
15
(4.5m)
16’-1”
(4.9m)
17’-1”
(5.21m)
18’-1”
(5.51m)
19’-1”
(5.82m)
20
(6.1m)
16’-7½”
(5.07m)
17’-7½”
(5.37m)
18’-7½”
(5.68m)
19’-7½”
(5.98m)
25
(7.6m)
17’-2”
(5.23m)
18’-2”
(5.54m)
19’-2”
(5.84m)
20’-2”
(6.15m)
30
(9.1m)
17’-8”
(5.39m)
18’-8”
(5.69m)
19’-8”
(5.99m)
20’-8”
(6.3m)
Multiple-Span Systems (with 30 ft. spans)
System
Length**
[ft (m)]
Length of Lanyard
3ft
(.9m)
4ft
(1.2m)
5ft
(1.5m)
6ft
(1.8m)
30
(9.1m)
17’-8”
(5.39m)
18’-8”
(5.69m)
19’-8”
(5.99m)
20’-8”
(6.3m)
60
(18.2m)
17’-10½”
(5.45m)
18’-10½”
(5.75m)
19’-10½”
(6.06m)
20’-10½”
(6.36m)
90
(27.4m)
18’-1”
(5.51m)
19’-1”
(5.82m)
20’-1”
(6.12m)
21’-1”
(6.43m)
120
(36.5m)
18’-3”
(5.56m)
19’-3”
(5.87m)
20’-3”
(6.17m)
21’-3”
(6.48m)
150
(45.7m)
18’-5”
(5.61m)
19’-5”
(5.92m)
20’-5”
(6.22m)
21’-5”
(6.53m)
180
(54.8m)
18’-7”
(5.66m)
19’-7”
(5.97m)
20’-7”
(6.27m)
21’-7”
(6.58m)
210
(64m)
18’-9”
(5.72m)
19’-9”
(6.02m)
20’-9”
(6.32m)
21’-9”
(6.63m)
240
(73.1m)
18’-11”
(5.77m)
19’-11”
(6.07m)
20’-11”
(6.38m)
21’-11”
(6.68m)
270
(82.2m)
19’-½”
(5.8m)
20’-½”
(6.11m)
21’-½”
(6.41m)
22’-½”
(6.72m)
300
(91.4m)
19’-2”
(5.84m)
20’-2”
(6.15m)
21’-2”
(6.45m)
22’-2”
(6.76m)
330
(100.5m)
19’-3½”
(5.88m)
20’-3½”
(6.19m)
21’-3½”
(6.49m)
22’-3½”
(6.79m)
360
(109.7m)
19’-5”
(5.92m)
20’-5”
(6.22m)
21’-5”
(6.53m)
22’-5”
(6.83m)
390
(118.8m)
19’-6½”
(5.96m)
20’-6½”
(6.26m)
21’-6½”
(6.57m)
22’-6½”
(6.87m)
420
(128m)
19’-8”
(5.99m)
20’-8”
(6.3m)
21’-8”
(6.6m)
22'-8”
(6.91m)
450
(137.1m)
19’-9”
(6.02m)
20’-9”
(6.32m)
21’-9”
(6.63m)
22’-9”
(6.93m)
480
(146.3m)
19’-10½”
(6.06m)
20’-10½”
(6.36m)
21-10½”
(6.67m)
22’-10½”
(6.97m)
510
(155.4m)
20’
(6.1m)
21’
(6.4m)
22’
(6.71m)
23'
(7.01m)
*
It is essential to read
and understand all information
and warnings contained herein
regarding fall clearance,
the formulas used for determining
fall clearance required,
and any special assumptions
or provisions with regard to
the calculations provided.
**For lifeline spans between the span lengths listed
in the fall clearance charts, use the next higher
lifeline span calculations. Example: For a 70 ft.
lifeline, use the 90 ft. fall clearance calculations.
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