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ANSI
Z359.2 Requirements Interpretation
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Anchorage
Systems for Fall Protection |
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Interpreted Requirements |
Templates, Examples |
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§
For Anchorage Connectors: o
Their
compatibility between anchorage connectors and anchorages shall be considered
when during design or selection. o
Their
exposure to sharp edges, excessive bending of wire rope, abrasive surfaces
and physical hazards such as thermal, electrical and chemical sources shall
be considered when designing or selecting an anchorage. o
They
shall be protected from damage from exposure to the items listed above. |
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§
For Fall Arrest Anchorages: o
Their
design, selection, installation, and certification shall be performed under
the supervision of a Qualified Person. o
They
shall have a strength capable of sustaining static loads applied in the
directions permitted by the system. o
They
shall be capable of withstanding a minimum force of 5,000 pounds (22.2kN) for
non-certified anchorages, or two times the maximum arrest force for certified
anchorages - per system attached to a anchorage. o
The
design, selection, and installation of certified anchorages shall include: ·
Determining a safe
location where and how to connect to those anchorages, and ·
Considering the
total forces generated by arresting a fall, total existing and anticipated
loading, load path, structural member strengths, connection and support
strengths, stability, clearance requirements, swing fall, rescue deflection
of the system, and the impact on the structural members to which the system
is attached. ·
Ensuring when
designing, selecting, and certifying a fall arrest anchorage, the Qualified
Person shall include the limitations on use of the system in fall protection
procedures described in this standard. ·
Marking that the
fall arrest anchorages shall be used exclusively for fall arrest loads and
shall be marked to prevent other uses. |
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§ For Positioning
Anchorages: o
They
shall have a strength capable of sustaining static loads applied in the
directions permitted by the system. o
They
shall have a minimum equivalent static working load capacity of 3,000 pounds
(13.3 kN) for non-certified anchorages, or two
times the foreseeable force for certified anchorages - per system attached to
a anchorage. o
If
the anchorage is also used as a fall arrest anchorage, it must comply with
all of the requirements for fall arrest anchorages in this standard. |
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§ For Restraint and
Travel Restraint Anchorages: o
They
shall have a strength capable of sustaining static loads applied in the
directions permitted by the system. o
They
shall have a minimum equivalent static working load capacity of 1,000 pounds
(4.5 kN) for non-certified anchorages, or two times
the foreseeable force for certified anchorages - per system attached to a
anchorage. o If the anchorage is also used as a fall arrest anchorage, it must comply with all of the requirements for fall arrest anchorages in this standard. |
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§ For Horizontal
Lifeline Anchorages: o
They
shall be certified and designed, prior to use, by a Qualified Person with
experience and training in designing and using horizontal lifeline systems. o
Be
capable of sustaining at least two times the maximum tension developed in the
lifeline during fall arrest in the direction applied by the lifeline
forces. The number of persons attached
to a horizontal lifeline shall be used in determining the maximum tension in
the horizontal lifeline. |
Non-certified
anchorages should not be used for horizontal lifelines.
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o
They
shall have a strength capable of sustaining static loads applied in the
directions permitted by the system. o
They
shall have a minimum equivalent static working load capacity of 3,000 pounds
(13.3 kN) for non-certified anchorages, or five
times the applied load for certified anchorages - per system attached to a
anchorage. o
If
the anchorage is also used as a fall arrest anchorage, it must comply with
all of the requirements for fall arrest anchorages in this standard. o
Anchorage
connectors for rescue systems shall not be attached to anchorages where such
attachment would reduce the anchorage (rescue) system allowable capacity
below its design capacity or the applicable building code requirements
without the approval of a Qualified Person. o
Have
stabilized anchorage connections to prevent unwanted movement or
disengagement of the rescue system from the anchorage. |
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§ Inspection,
Certification and Re-certification of Anchorages: o
Anchorages
shall be inspected: §
By
the Authorized Person prior to each use and, §
By
a Qualified Person and/or Competent Person at least annually and in
accordance with the manufacturer's or Qualified Person's instructions. §
For
any cracks in the structure around the anchorage or if the connection is
unstable or loose. o
A
fall protection anchorage shall be taken out of service when: §
Any
inspection reveals that it may no longer serve the required function, §
It
may be unsafe due to damage or wear, or §
The
required inspection interval has been exceeded. o
An
anchorage taken out of service for exceeding the inspection interval may be
returned to service after a satisfactory inspection has been performed and
approved by a competent person. o
Recertification
of anchorages shall be field-verified by a Qualified Person. |
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§ Selection of Safe
Anchorages: o
The
attachment connectors for each fall protection anchorage shall not
significantly reduce the strength of the structural members to which they are
attached, such as beams, columns or any other rigid structure or reduce the
anchorage strength below the allowable level set by applicable building codes. o
All
components and subcomponents of the selected fall protection system shall be
compatible to the anchorage. o
Safe
Anchorages will be utilized: §
As
high as practical above an Authorized Person to minimize the free fall
distance and the total fall distance, and to prevent any contact with an
obstruction or the ground below. §
To
minimize the pendulum-like motion during a fall. The maximum angle from the point of
attachment of the anchorage connector to the Authorized Person shall be in
accordance with the manufacturer’s recommendations for swing falls. o
Welders
shall be certified to a recognized welding standard when the anchorage
connection is welded to the anchorage. o
Accessibility,
location, and ease of connecting (tying off) shall be taken into
consideration when planning and selecting anchorages. o
When
selecting an eyebolt for an anchorage, it shall be rated along with its
intended use axis in accordance with the manufacturer’s requirements. The diameter of the eyebolt shall be
compatible to the snap-hook or carabineer. |
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