Annex - Ansi/Asse Z359.11-2014 American National Standard - MSA Arneses estilo V-FLEX Instrucciones De Uso

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Annex - ANSI/ASSE Z359.11-2014 American National Standard

NOTE: These are general requirements and information provided by ANSI/ASSE Z359, the Manufacturer of
this equipment may impose more stringent restrictions on the use of the products they manufacture, see the
Manufacturer's instructions.
(1) It is essential that the users of this type of equipment receive proper training and instruction, including
detailed procedures for the safe use of such equipment in their work application. ANSI/ASSE Z359.2,
Minimum Requirements for a Comprehensive Managed Fall Protection Program, establishes guidelines
and requirements for an employer's managed fall protection program, including policies, duties and
training; fall protection procedures; eliminating and controlling fall hazards; rescue procedures; incident
investigations; and evaluating program effectiveness.
(2) Correct fit of a Full Body Harness is essential to proper performance. Users must be trained to select
the size and maintain the fit of their Full Body Harness.
(3) Users must follow manufacturer's instructions for proper fit and sizing, paying particular attention to
ensure that buckles are connected and aligned correctly, leg straps and shoulder straps are kept snug
at all times, chest straps are located in the middle chest area and leg straps are positioned and snug to
avoid contact with the genitalia should a fall occur.
(4) Full Body Harnesses which meet ANSI/ASSE Z359.11 are intended to be used with other components
of a Personal fall Arrest system that limit maximum arrest forces to 1800 pounds (8 kn) or less.
(5) Suspension intolerance, also called suspension trauma or orthostatic intolerance, is a serious condition
that can be controlled with good harness design, prompt rescue and post fall suspension relief devices.
A conscious user may deploy a suspension relief device allowing the user to remove tension from
around the legs, freeing blood flow, which can delay the onset of suspension intolerance. An attachment
element extender is not intended to be attached directly to an anchorage or anchorage connector for
fall arrest. An energy absorber must be used to limit maximum arrest forces to 1800 pounds (8 kn). the
length of the attachment element extender may affect free fall distances and free fall clearance calcu-
lations.
(6) Full Body Harness (FBH) Stretch, the amount the FBH component of a personal fall arrest system will
stretch and deform during a fall, can contribute to the overall elongation of the system in stopping a fall.
It is important to include the increase in fall distance created by FBH Stretch, as well as the FBH
connector length, the settling of the user's body in the FBH and all other contributing factors when calcu-
lating total clearance required for a particular fall arrest system.
(7) When not in use, unused lanyard legs that are still attached to a Full Body Harness D-ring should not
be attached to a work positioning element or any other structural element on the Full Body Harness
unless deemed acceptable by the competent person and manufacturer of the lanyard. This is especially
important when using some types of "y" style lanyards, as some load may be transmitted to the user
through the unused lanyard leg if it is not able to release from the harness. the lanyard parking attach-
ment is generally located in the sternal area to help reduce tripping and entanglement hazards.
(8) Loose ends of straps can get caught in machinery or cause accidental disengagement of an adjuster.
All Full Body Harnesses shall include keepers or other components which serve to control the loose
ends of straps.
(9) Due to the nature of soft loop connections, it is recommended that soft loop attachments only be used
to connect with other soft loops or carabiners. Snaphooks should not be used unless approved for the
application by the manufacturer.
Section 10 - 16 provide additional information concerning the location and use of various attachments
that may be provide on this FBH.
(10) Dorsal – the dorsal attachment element shall be used as the primary fall arrest attachment, unless the
application allows the use of an alternate attachment. The dorsal attachment may also be used for travel
restraint or rescue. When supported by the dorsal attachment during a fall, the design of the Full Body
Harness shall direct load through the shoulder straps supporting the user, and around the thighs.
Supporting the user, post fall, by the dorsal attachment will result in an upright body position with a slight
lean to the front with some slight pressure to the lower chest. Considerations should be made when
choosing a sliding versus fixed dorsal attachment element. Sliding dorsal attachments are generally
easier to adjust to different user sizes, and allow a more vertical rest position post fall, but can increase
FBH Stretch.
MSA Harness
US
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