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FALL CLEARANCE: Figure 3 illustrates the components of a Fall Arrest. There must be suffi cient clearance below
the user to arrest a fall before the user strikes the ground or other obstruction. Clearance is affected by a number of
factors including the following parameters:
Elevation of Anchorage
Connecting Subsystem Length
NOTE:
Refer to the instructions included with your Fall Arrest subsystem for specifi cs regarding Fall Clearance
calculation.
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SWING FALLS: Swing Falls occur when the anchorage point is not directly above the point where a fall occurs (see
Figure 4). The force of striking an object in a swing fall may cause serious injury or death. Minimize swing falls by
working as directly below the anchorage point as possible. Do not permit a swing fall if injury could occur. Swing falls
will signifi cantly increase the clearance required when a Self-Retracting Device or other variable length connecting
subsystem is used.
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EXTENDED SUSPENSION: A Full Body Harness is not intended for use in extended suspension applications. If the
user is going to be suspended for an extended length of time it is recommended that some form of seat support
be used. Capital Safety recommends a seat board, suspension work seat, seat sling, or a boatswain chair. Contact
Capital Safety for more information on these items.
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ENVIRONMENTAL HAZARDS: Use of this equipment in areas with environmental hazards may require additional
precautions to prevent injury to the user or damage to the equipment. Hazards may include, but are not limited to;
heat, chemicals, corrosive environments, high voltage power lines, gases, moving machinery, and sharp edges.
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HARNESSES FOR HIGH TEMPERATURE ENVIRONMENTS: Harnesses with Kevlar® webbing are designed for use
in high temperature environments, with limitations: Kevlar® webbing begins to char at 800° to 900° Fahrenheit.
Kevlar® webbing can withstand limited contact exposure to temperatures up to 1,000° F. Polyester webbing loses
strength at 300° to 400° F. PVC coating on hardware has a melting point of approximately 350° F.
!
WARNING:
protection equipment can withstand high temperatures, or provide protection for those items.
!
WARNING:
acidic, alkaline, and atmospheric conditions, frequent inspections may be required. Consult with Capital Safety if
you question the use of this equipment in hazardous environments.
Figure 3 – Fall Arrest Components
A
B
Fall
Clearance
C
Clearance
A - Lanyard Length
B - Lanyard Deceleration Distance or SRL Maximum Arrest Distance
C - Safety Factor = Harness Stretch (H
Free Fall Distance
Deceleration Distance
When working with tools, materials, or in high temperature environments, ensure that associated fall
Although PVC coated and zinc plated hardware exhibit excellent corrosion resistance in chemical,
B
C
Fall
) + D-Ring/Connector Length + Settling = 1.5 ft (0.5 m)
S
Worker Height
Attachment Element Movement and Harness Stretch
Figure 4 – Swing Fall
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