CONNECTION REQUIREMENTS
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OMPATIBILITY
IMITATIONS
All connecting subsystems must only be coupled to compatible connectors. OSHA 29 CFR
1926.502 prohibits snaphooks from being engaged to certain objects unless two requirements
are met: it must be a locking type snaphook, and it must be "designed for" making such a
connection. "Designed for" means that the manufacturer of the snaphook specifi cally designed
the snaphook to be used to connect to the equipment in question. The following connections
must be avoided, because they can result in rollout* when a nonlocking snaphook is used:
•
Direct connection of a snaphook to horizontal lifeline.
•
Two (or more) snaphooks connected to one D-ring.
•
Two snaphooks connected to each other.
•
A snaphook connected back on its integral lanyard.
•
A snaphook connected to a webbing loop or webbing lanyard.
•
Improper dimensions of the D-ring, rebar, or other connection point in relation to
the snaphook dimensions that would allow the snaphook keeper to be depressed
by a turning motion of the snaphook.
*Rollout: A process by which a snaphook or carabiner unintentionally disengages from another
connector or object to which it is coupled. (ANSI Z359.0)
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NAPHOOKS AND
ARABINERS
Snaphooks and carabiners used in the 3M
the ANSI Z359.1-07, ANSI Z359.12-09 or CSA Z259.12-11 standard, are self-locking with a
minimal tensile break strength of 5,000 pounds (22.2 kN) and 3,600 pounds (16 kN) gate rating.
Snaphooks and carabiners marked with the ANSI Z359.1-1999 and/or CSA Z259.12-01
standards, incorporate self-locking snaphooks and carabiners with minimal tensile break strength
of 5,000 pounds (22.2 kN), a minimum gate rating of 220 pound (0.98 kN), and a minimum side
load gate rating of 350 pound (1.56 kN).
SYSTEM COMPONENTS
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OMPATIBILITY
IMITATIONS
All components and subsystems used with the 3M Ladder Climb Cable Vertical Lifeline have
been tested as part of a pre-engineered fl exible vertical lifeline system.
Warning: Only 3M approved components and subsystems are to be used with the 3M
Ladder Climb Cable Vertical Lifeline.
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3M
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A
ABLE
SSEMBLY
The 3M Cable Assembly RC M400 has three components; the cable vertical lifeline, energy
absorber, and back-up cable. The cable is ⅜ inch 7x19 galvanized steel Aircraft cable. The
energy absorber is constructed of 10 gage powder coated steel measuring 8½ inches long and
3¼ inches wide. It is designed to limit the maximum arrest load to less than 900 lbf on the top
Misuse or failure to follow warnings and instructions may result in serious personal injury or death.
TM
Ladder Climb Cable Vertical Lifeline, marked with
RC M400-XXX
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