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1.0 APPLICATIONS
1.1 PURPOSE:
Energy absorbing lanyards are to be used as components in Personal Fall Protection
Systems designed to safely arrest a fall. Energy absorbing lanyards are used in the
following applications:
Fall Arrest:
Fall arrest systems safely stop the user in a free fall from a height. The user can
then self-rescue or be rescued. Personal fall arrest systems typically include a full body
harness and an energy absorbing lanyard. Maximum arresting force must not exceed
1,800 lbs (8 kN).
Restraint:
Restraint systems prevent the user from reaching a fall hazard (example: leading
edge roof work).
1.2 LIMITATIONS AND REQUIREMENTS:
WARNING: Always consider the following application limitations and requirements before
using this equipment.
a) Capacity:
The Energy Absorbing Lanyard is designed for use by persons with a combi-
ned weight (clothing, tools, etc.) of no more than 310 lbs (141 kg)1. Make sure all of the
components in your system are rated to a capacity appropriate to your application.
b) Free Fall:
Personal fall arrest systems incorporating this equipment must be rigged to
limit the free fall to 6 feet (1.8 m) or less when using energy absorbing lanyard models
c) Fall Clearance:
There must be sufficient clearance below the user to arrest a fall before
the user strikes the ground or other obstruction. The clearance required depends on several
factors:
· Deployment distance
· Energy absorbing lanyard length
· Movement of harness attachment element
· Free fall distance
· Elevation of anchorage
· Worker height Figure 2 illustrates fall clearance calculation for an energy absor-
bing lanyard.
d) Swing Falls:
Swing falls occur when the anchorage point is not directly above the point
where a fall occurs (see Figure 3). Minimize swing falls by working as close to and directly
below the anchorage point as possible. Do not permit a swing fall if injury could occur.
Warning: The force of striking an object in a swing fall may cause serious injury or death.
e) Environmental Hazards:
Use of this equipment in areas with environmental hazards
may require additional precautions to prevent injury to the user or damage to the equip-
ment. Hazards may include, but are not limited to; heat, chemicals, corrosive environ-
ments, high voltage power lines, gases, moving machinery, and sharp edges.
f) Lanyards for high temperature environments:
ned for use in high temperature environments, with limitations: Kevlar webbing begins to
char at 800° to 900° Fahrenheit. Kevlar webbing can withstand limited contact exposure to
temperatures up to 1,000° F. Polyester webbing loses strength at 300° to 400° F. PVC
coating on hardware has a melting point of approximately 350° F.
g) Training:
It is the responsibility of the user and the purchaser of this equipment to assure
that they are familiar with these instructions, trained in the correct care and use of, and are
aware of the operating characteristics, application limits, and the consequences of impro-
per use of this equipment.
1.3 APPLICABLE STANDARDS:
Refer to national standards including the ANSI Z359 family of standards on fall protection,
ANSI A10.32 and applicable local, state, and federal (OSHA) requirements governing
occupational safety for more information on Energy Absorbing Lanyards, Energy Absor-
bers and associated components.
1.4 RESCUE PLAN:
When using this equipment, the employer must have a rescue plan and the means at hand
to implement the rescue, as well as communicate that plan to users, authorized persons,
and rescuers.
1.5 INSPECTION BEFORE
USE:
The energy absorbing lanyard must be inspected according to procedures in Section 4 of
this instruction manual.
Lanyards with Kevlar webbing are desig-
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