3
2.0 systeM reQUIreMents
2.1 CoMPaTIbILITy oF CoMPonenTs anD subsysTeMs:
This equipment is designed for use with
DBI-SALA approved components and subsystems. Substitutions or replacements made with non-approved
components or subsystems may be incompatible, and may jeopardize the safety and reliability of the
complete system.
2.2 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. Contact
DBI-SALA if you have any questions about compatibility.
Connectors (hooks, carabiners, and D-rings) must be capable of supporting at least 5,000 lbs. (22.2 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., OSHA, and CSA Z259.2.
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 connections 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 4 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).
Small ring or
other
non-compatibly
shaped
element
If the connecting element that a snaphook (shown) or carabiner attaches to is undersized or irregular in shape, a situation could
occur where the connecting element applies a force to the gate of the snaphook or carabiner. This force may cause the gate (of
either a self-locking or a non-locking snaphook) to open, allowing the snaphook or carabiner to disengage from the connecting point.
. Force is applied to the
snap hook.
2. The gate presses against the
connecting ring.
3. The gate opens allowing the
snap hook to slip off.
Figure 3 - unintentional Disengagement (Roll-out)
