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The following should be considered when
assessing your application:
• The proper amount of fall clearance is
calculated from the top of the guardrail
using self-retracting lifeline guidelines
provided in this instruction manual.
• Ensure no swing-fall hazard exists.
• Lifeline contact with sharp edges must
be avoided.
• Preventative measures must be taken
to ensure the self-retracting lifeline
does not become pinched between two
surfaces as this may cause excessive
lifeline wear and weakness.
Please
contact
Service at 1-800-873-5242 (press 4) for
additional assistance when evaluating this
installation application.
4.4 Installation for Horizontal
use
In the absence of an overhead anchorage,
mounting a self-retracting lifeline for horizontal
use may be necessary.
applications where the lifeline of the retractable
has the potential to travel over the edge of
a flat surface, Honeywell Safety Products
recommends the use of Miller SofStop Shock
Absorber Model 928LS connected between
the worker's harness back D-ring and the self-
retracting lifeline snap hook.
protect the lifeline and reduce the impact forces
in the event of a fall.
CAuTION:
retracting lifeline for horizontal use,
special considera-tions and warnings
apply.
Please
Technical Service to obtain the relative
technical letter before proceeding.
4.5 Installation in a Leading
Edge Application
Select Miller self-retracting lifelines have been
specially-engineered with the SofStop Le
shock absorber for leading edge applications,
whereby the user is attached to an anchor
point which may be at foot level and whereby
the lifeline has the potential to go over an edge
if the user falls. Refer to the I322 Leading
edge Self-Retracting Lifelines Instruction
Supplement
for
regarding this installation application.
12
Honeywell
Technical
For horizontal
This will help
When installing a self-
contact
Honeywell
complete
information
5.0 Calculating Fall Clear-
ance Distance
It is essential to understand how to calcu-
late the fall clearance distance required
for each work application to avoid contact
with a lower level.
The basic calculation shown below and the
related diagrams on page 9 may be used to
determine Required Fall Clearance when us-
ing a self-retracting lifeline in an overhead
application. Refer also to Table 1: Minimum
Required Fall Clearances. For a more auto-
mated approach to calculating Required Fall
Clearance, access the Miller Fall Clearance
Calculator online:
www.millerfallprotection.com/fall-
clearance
SeLF-RetRACtIng LIFeLIne FALL
CLEARANCE CALCULATION (see Fig.
8a)
[Calculation taken from work level]
Maximum Arrest Distance (MAD)
+ [Non-Standing Work Position Factor
(NSF)]
+ [Swing Fall Factor (SFF)]
+ 3 ft. (0.9m) Safety Factor (SF)
= Required Fall Clearance (RFC)
CAuTION:
Read all notes and refer to all
self-retracting lifeline fall clearance diagrams
and labels to determine exact required fall
clearance for your application.
