FULL BODY HARNESS
12. ANCHORAGE STRENGTH:
Anchorage and anchorage strength requirements are dependent on the
full body harness application (see below figure). In accordance with ANSI Z 359.11, anchorage selected for
fall Arrest Systems must meet the anchorage strength requirements defined in Table 2.
C. Work Positioning:
The structure to which the work positioning system is attached must sustain static
loads applied in the directions permitted by the work positioning system of at least 3,000 lbs., or twice the
potential impact load, whichever is greater. See OSHA1926.502. When more than one work positioning
system is attached to an anchorage, the strengths stated above must be multiplied by the number of work
positioning systems attached to the anchorage.
The full body harness is used as a component of a climbing
system to prevent the user from falling when climbing a ladder or
other climbing structure. Climbing systems typically include a
full body harness, vertical cable or rail attached to the structure,
and climbing sleeve. For ladder climbing applications, harnesses
equipped with a frontal D-ring in the sternal location may be used
for fall arrest on fixed ladder climbing systems.
Ladder
Climbing
Restraint
None
Class L
Work
Positioning
The full body harness is used as a component of a work
positioning system to support the user at a work position. Work
positioning systems typically include a full body harness,
positioning lanyard, and a back-up personal fall arrest system.
For work positioning applications, connect the work
positioning subsystem (example: lanyard, Y-lanyard, etc.) to
the lower (hip level) side or belt mounted work positioning
attachment anchorage elements (D-rings). Never use these
connection points for fall arrest
Class P
Rescue
The full body harness is used as a component of a rescue
system. Rescue systems are configured depending on the type
of rescue. For limited access (confined space) applications,
harnesses equipped with D-rings on the shoulders may be used
for entry and egress into confined spaces where worker profile
is an issue.
Class E
Description
CSA Class
Application
The full body harness is used as a component of a restraint
system to prevent the user from reaching an unprotected edge
or floor opening. Restraint systems typically include a full
body harness and a lanyard or restraint line.
07
B. Per OSHA 1926.500 and 1910.66:
Anchorages used for attachment of personal fall arrest systems
shall be independent of any anchorage being used to support or suspend platforms and capable of support-
ing at least 5,000 lbs. per user attached, or be designed, installed and used as part of a complete PFAS
which maintains a safety factor of at least two, and is under the supervision of a qualified person.
A. Fall Arrest:
Anchorages selected for fall arrest systems shall have a strength capable of sustaining
static loads applied in the directions permitted by the system of at least: 1.) 5,000 lbs. for non-certified
anchorages, or 2.) Two times the maximum arresting force for certified anchorages. When more than one
fall arrest system is attached to an anchorage, the strengths set forth in (1) and (2) above shall be
multiplied by the number of systems attached to the anchorage.