4
2.12 COMPATIBILITY OF COMPONENTS:
Unless otherwise noted, Capital Safety equipment is designed for use
with Capital Safety approved components and subsystems only. Substitutions or replacements made with non
approved components or subsystems may jeopardize compatibility of equipment and may affect safety and
reliability of the complete system:
•
Horizontal Systems - In applications where an SRL is used in conjunction with a horizontal system (i.e.
horizontal I-beams and trolleys), the SRL and horizontal system components must be compatible.
•
Retrieval Systems - When using DBI-SALA SRLs with optional retrieval system, ensure the support
structure (i.e. tripod, davit arm) is compatible with connection of the SRL, and compatible with the
operation, stability, and strength of the SRL (see Figures 5 and 6).
IMPORTANT:
Read and follow manufacturer’s instructions for associated components and subsystems in
your personal fall arrest system.
2.13 COMPATIBILITY OF CONNECTORS:
Connectors are considered to be compatible with connecting
elements when they have been designed to work together in such a way that their sizes and shapes do not
cause their gate mechanisms to inadvertently open regardless of how they become oriented. Connectors
(hooks, carabiners, and D-rings) must be capable of supporting at least 5,000 lbs. (22 kN). 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 3). Connectors must
be compatible in size, shape, and strength. Self-locking snap hooks and carabiners are required by ANSI
Z359.1 and OSHA.
2.14 MAKING CONNECTIONS:
Use only 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 speci
fi
ed in each
product’s user’s instructions. See Figure 4 for illustration of the inappropriate connections stated below.
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.
C. In a false engagement, where features that protrude from the snap hook or carabiner catch on the
anchor and without visual con
fi
rmation 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 speci
fi
cally allow 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.
NOTE:
Other than 3,600 lb. (16 kN) gated hooks, 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
fi
xed structural elements such as rebar or cross
members that are not shaped in a way that can capture the gate of the hook.
Figure 3 - Unintentional Disengagement (Rollout)
If the connecting element to which a snap hook (shown) or carabiner
attaches is undersized or irregular in shape, a situation could occur
where the connecting element applies a force to the gate of the snap
hook or carabiner. This force may cause the gate (of either a self-
locking or a non-locking snap hook) to open, allowing the snap hook
or carabiner to disengage from the connecting point.
Small ring or other
non-compatibly
shaped element
7.
Force is applied
to the Snap
Hook.
8.
The
Gate
presses against
the Connecting
Ring.
9.
The Gate opens
allowing the
Snap Hook to
slip off.
Figure 4 - Inappropriate Connections
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