4
Connectors ( hooks, carabiners, and D-rings) must be capable of supporting at least 5,000 lbs. (22.2kN).
Connectors must be compatible with the anchorage or other system components. Do not use equipment that is
not compatible. Non-compatible connectors may unintentionally disengage. See Figure 2. Connectors must be
compatible in size, shape, and strength. Self locking snap hooks and carabiners are required by ANSI Z359.1,
OSHA, and CSA Z259.12.
2.3
Making Connections: Only use self-locking snap hooks and carabiners with this equipment. Only use
connectors that are suitable to each application. Ensure all connections are compatible in size, shape and
strength. Do not use equipment that is not compatible. Ensure all connectors are fully closed and locked.
DBI/SALA connectors (snap hooks and carabiners) are designed to be used only as specified in each product’s
user’s instructions. See Figure 3 for inappropriate connections. DBI/SALA snap hooks and carabiners should not
be connected:
A. To a D-ring to which another connector is attached.
B. In a manner that would result in a load on the gate.
NOTE: Large throat opening snap hooks should not be connected to standard size D-rings or similar objects which
will result in a load on the gate if the hook or D-ring twists or rotates. Large throat snap hooks are designed for use on
fixed structural elements such as rebar or cross members that are not shaped in a way that can capture the gate of
the hook.
C. In a false engagement, where features that protrude from the snap hook or carabiner catch on the anchor
and without visual confirmation seems to be fully engaged to the anchor point.
D. To each other.
E. Directly to webbing or rope lanyard or tie-back (unless the manufacturer’s instructions for both the lanyard
and connector specifically allows such a connection).
F.
To any object which is shaped or dimensioned such that the snap hook or carabiner will not close and lock,
or that roll-out could occur.
2.4
ANCHORAGE
STRENGTH:
Anchorages selected
for the Rescumatic®
Emergency Escape
Device shall have a
strength capable of
sustaining static
loads, applied in the
directions permitted by
the rescue system of
at least 3100 lbs
(13.8kN) for
connection of rescue
system only, or meet a
factor safety of 5:1
based on the static
load placed on the
system when the
system is designed,
installed and used
under the supervision
of a Qualified Person, as per OSHA definition. The anchorage point should be as close as possible to a vertical
descent path. No more than one Rescumatic® Device may be connected to a single anchorage. Anchorages used
to support a guide cable, when applicable, must be sufficiently strong to withstand the forces generated in the
guide cable during descent. See section 3.3 (C).
Figure 3 - Inappropriate Connections
