8
Figure 3 - Non-Compatible Connections
D
Never attach to a object in a manner whereby the gate (of the snap hook or carabiner) would be
prevented from fully closing and locking. Always guard against false connections by visually inspecting for
closure and lock.
E
Never attach explicitly to a constituent subcomponent (webbing, cable or rope) unless specifically provided
for by the manufacturer’s instructions for both subcomponents (snap hook or carabiner and webbing, cable
or rope).
F
Never attach in a manner where an element of the connector (gate or release lever) may become caught on
the anchor thereby producing additional risk of false engagement.
G
Never attach a spreader snap hook to two side/positioning D-rings in a manner whereby the D-rings
will engage the gates; the gates on a spreader must always be facing away from the D-rings during work
positioning.
4.6 Average Arrest Force and Arrest Distance:
Table 1B provides test data on typical performance attributes of the three principal parameters, Arrest
Distance, Average Arrest Force and Maximum Arrest Force, listed by model number and class. Testing
is conducted under various environmental conditions; at ambient temperature, plus hot, cold, and in
wet conditions. In manufacturer’s tests, worst case performance attributes of the SRD, connected at
foot-level (maximum of 5 feet below the dorsal D-ring) in a Leading Edge application with 5’ (1.5m) of
setback, or with 0’ setback, are:
The Competent Person may find this data useful with planning anchorage location and calculating fall
arrest loads and distances from the walking/working level to the nearest obstruction or lower level. See
Section 5.
NOTE:
Arrest distance is one part of the Minimum Required Fall Clearance (MRFC). The MRFC is
determined by consideration of multiple factors in fall protection. Attachment below the level of the
FBH D-ring will require additional fall clearance. MRFC is discussed in detail in Section 5.
4.7 PFAS Anchorage Strength:
An anchorage selected for PFAS must have a strength able to sustain a static load applied in the
direction permitted by the PFAS of at least:
a.
Two times the maximum arrest force permitted when certification exists, or
b.
5,000 lbs. (22.2 kN) in the absence of certification.
Select an anchorage location carefully. Consider structural strength, obstructions in the fall path, and
swing fall hazards. In certain situations, the qualified person can determine that a given structure is
able to withstand the applied MAF of the PFAS with a safety factorof at least two, as required by OSHA.
WARNING
Do not alter or intentionally misuse this equipment. Consult FallTech when using this
equipment in combination with components or subsystems other than those described in this
manual. All components or subsystems used with the SRD discussed in this manual must be in
compliance with ANSI Z359, CSA Z259, and/or OSHA.
Do not use rebar hooks, large carabiners, or large snap hooks to connect to the FBH dorsal
D-rings or to any small diameter non-compatible anchor point as this may cause a roll-out
condition and/or unintentional disengagement.
Longest Arrest Distance
109” (2.8 m)
109” (2.8 m)
Largest Average Arrest Force
1,131 lbs (5.0 kN)
1,042 lbs (4.6 kN)
Largest Maximum Arrest Force
1,631 lbs (7.3 kN)
1,546 lbs (6.9 kN)
5’ (1.5 m) Setback
0’ Setback
