3.4 100% TIE-OFF LANYARD CONSIDERATIONS:
Commonly known as 100% tie-off, "Y" type, twin leg, or double lanyards; these energy
absorbing lanyards can be used to provide continuous fall protection while ascending,
descending, or moving laterally. With one lanyard leg attached, the worker can move to a
new location, attach unused lanyard leg, and disconnect attached leg. This procedure is
repeated until a new location is reached. Other practices that must be followed in order to
use a 100% tie-off type lanyard safely include:
1. The energy absorber portion of the lanyard must be connected to the dorsal
D-Ring only. Use only the snap hook (or other connector provided) to attach the
energy absorber portion directly to the harness dorsal D-Ring. See Figures 17
and 18.
2. Do not connect the energy absorber to the anchorage. See Figure 19.
3. Do not attach the unused leg of the lanyard back to the harness at any location
unless a specially designed lanyard retainer is provided for this purpose.
4. Connection of both lanyard legs to separate anchorage points is acceptable.
See Figure 21.
5. When leapfrogging from one anchorage point to the next (such as traversing a
horizontal or vertical structure) do not connect to anchorage points that are
further apart than the lanyard length (as marked on the lanyard label). See
Figure 22.
6. Never connect more than one person to a "Y" type lanyard at a time.
7. Do not allow any lanyard to pass under arms or legs during use.
a) Attaching a Tie-Back Lanyard:
See Figure 23. Place the tie-back lanyard over the
anchoring structure. Ensure the lanyard is not twisted. Adjust the floating D-Ring so it
hangs below the anchoring structure. Attach the lanyard end hook to the floating D-Ring.
Ensure the lanyard is cinched tight around the anchorage during use.
b) Connecting To The Body Support:
absorber to the D-Ring on the back between the shoulders (dorsal D-Ring) on a full body
harness. Connect so the energy absorber portion of the lanyard is on the body support
side. DBI SALA does not recommend using a body belt for fall arrest applications. If using
a body belt, connect the energy absorbing lanyard or energy absorber to the D-Ring and
position the belt so the D-Ring is located on the back side of the body.
c) Connecting to a rope grab (fall arrestor):
energy absorber end) be attached to the rope grab. This recommendation is made to
reduce possible interference with the operation of the rope grab by the energy absorber
"pack." Attaching a component style energy absorber to a rope grab is not recommended,
with the exception of a "direct-coupling" between a rope grab and a harness. Some rope
grabs may be supplied with a permanently attached energy absorbing lanyard. For these
cases, use of an additional energy absorber connected between the rope grab and the body
support is not recommended.
In some cases it may be permissible to couple an energy absorber component between the
anchorage (or anchorage connector) and the rope grab lifeline. In all cases, ensure the
length of the energy absorber or energy absorbing lanyard does not exceed the rope grab
manufacturer's recommended maximum connection length (3 feet [.9 m] maximum per
ANSI Z359.1).Consult the manufacturer's instructions provided with the Rope Grab for
further details.
3.6 AFTER USE
Return the lanyard for cleaning or storage as described in section 5.0.
Connect the energy absorbing lanyard or energy
It is recommended the lanyard end (vs. the