Fall Clearance - TIE DOWN 13864 Instrucciones De Instalación

Maximum 1 attachment per connection point. Use of equipment
in unintended applications may result in serious injury or death.
Fall Clarence
The total fall distance is the minimum
vertical distance between the worker and a
lower level that is necessary to ensure that
the worker avoids contact with the lower
level during a fall. It is important that
employers calculate this distance before
work begins to ensure that the proper fall
protection equipment is selected for the
location. To determine the total fall
distance, several factors must be taken
into consideration:
• Free Fall Distance: The distance the
worker falls before the PFAS begins to slow
the fall. This distance must be 6 feet or less
for a PFAS (29 CFR 1926.502(d)(16)(iii)).
• Deceleration Distance: The distance the
lanyard stretches in order to arrest the fall.
OSHA requires that this distance be no
greater than 4 feet (29 CFR1926.502
(d)(16)(iv)), but it may be less for some PFAS
equipment.
• D-ring Shift: How far the D-ring shifts
and the harness stretches when it supports the full weight of a fallen worker, including the
weight of tool belts and other attached equipment or tools. Employers typically assume this
shift is 1 foot, but it can vary, depending on the equipment design and the manufacturer.
• Back D-ring Height: The height of the D-ring, measured as the distance between the
D-ring and the sole of the worker's footwear. Employers often use a standard distance of 5
feet for this height, assuming a worker who is 6 feet tall. The D-ring height needs to be
adjusted for very tall workers, and for shorter workers as well.
• Safety Margin: An additional distance (typically a minimum of 3 feet) to ensure that there
is enough clearance between the worker and the lower level after a fall.
Page 4 of 8
E1602; Rev. 8/5/19
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Fall Clearance

Required distance from
anchorage 19' total
TIE DOWN Roofing Products Division
DANGER
Lanyard length
6' total
Deceleration
distance 4' total
Height of harness
dorsal D-ring from
worker's feet
6' total
Safety factor
3' total