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ANCHORAGE: Select a rigid anchorage point that is capable of supporting the required loads. The
anchorage location must be carefully selected to reduce possible free fall and swing fall hazards and
to avoid striking an object during a fall. The anchorage should be generally level (horizontal) to prevent
the anchorage connector from sliding down an incline when in use, which could cause serious injury
to the user.
FREE FALL: Maximum free-fall distance six feet or energy absorber arresting force of 900 lbs per ANSI
or maximum fall arrest force of 1800 lbs per OSHA.
Anchorage
Anchorage
Connector
Connector
Energy
Absorbing
Lanyard
to arrest the fall before striking the ground or other object. Energy absorbers can extend the fall
arrest distance by up to 42 inches (106.7 cm). The illustration to the right shows how to estimate
fall clearance distance when using an energy absorbing lanyard or energy absorber subsystem.
Other factors may influence the required clearance distances. For example, using an energy
absorbing lanyard or energy absorber with a rope grab (fall arrestor) may require additional
clearance due to stretch in the lifeline or sliding of the rope grab on the lifeline during fall arrest.
Some full body harness models incorporate a sliding (positional) D-ring in the back as the fall
arrest attachment, movement of this D-ring during fall arrest can increase the fall clearance
distance required. Use caution when assembling system components that could act to extend the
fall arrest distance (and therefore fall clearance required). Refer to manufacturer's instructions
for each part of the system for more information on fall clearance.
WITH HOOK
ACCEPTABLE DESIGNED RETAINER
MAXIMUM ATTACHMENT DISTANCE
CONNECTING TO ANCHORAGE OR ANCHORAGE
CONNECTOR: Always connect the energy
absorber end of the lanyard to the body support
Anchorage
Connector
(harness). Connect the lanyard end to the
Connecting
anchorage or anchorage connector. Component
Subsystem
style energy absorbers should be connected to the body support first, then coupled to
Energy
the rest of the system. Some anchorage connector devices may be supplied with
Absorbing
Lanyard
permanently attached energy absorber. Use of an additional energy absorber or
energy absorbing lanyard with these types of subsystems is not recommended.
FALL CLEARANCE: Should a fall occur, there
must be sufficient clearance in the fall area
ATTACH ENERGY
ABSORBER
ONLY TO DORSAL
D-RING
WITHOUT HOOK
When using lanyards commonly referred to
as "100% tie-off", "Y" type, "double" or "twin
leg"
shock
absorbing
lanyards.
supplement provides additional information
on the use of these types of lanyards that are
used with a personal fall arrest systems.
Practices that must be followed in order to
use a 100% tie-off lanyard safely.
1.
The shock absorber pack portion of the
lanyard assembly MUST be connected
to the back dorsal D-ring ONLY, by way
of a double locking lanyard snap hook
(other connectors provided, consult
ULTRA-SAFE, INC.) connect shock
absorber directly to the dorsal D-ring.
2.
Do not connect shock absorber to the
anchorage point at any time.
2
Anchor
Point
Allow a minimum of
17'
point to lower level.
Nearest
Obstruction
Clearance to Obstruction
(Lower Level)
1 1/2ft (.5m) Min Allowed
DO NOT
ATTACH ENERGY
ABSORBER
TO ANCHOR
3.
Do not connect the unused leg of the
lanyard assembly to any portion of the
This
full body harness, unless a specifically
designed lanyard snap hook loop
retainer is provided for this purpose.
4.
When connecting from one anchorage
point to the next (traversing a vertical or
horizontal structure) do not connect to
an anchorage point further apart than,
the length of the lanyard.
5.
When using a 100% tie-off lanyard
assembly, do not allow any part of the
lanyard to pass under arms or legs.
6.
Connection of both lanyard legs to
separate
anchorage
acceptable, as long as anchorage
points are within the length of the
lanyard.
Swing Fall
Hazard
NOTE:
from
anchor
points
is
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