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WARNING: This equipment should not be used in high temperature environments unless specifically designed
and designated for those applications. It is important to protect this equipment when using near activities like
welding or metal cutting. Hot sparks may cause damage to this equipment or burn it. Contact DEWALT with any
questions regarding the details on use of this equipment in high temperature environments.
WARNING:
It is important to take additional precautions while using this equipment in the presence of any
environmental hazards so as to prevent injury to the user or damage to the equipment.
•
Work Positioning: The structure to which
the work positioning system (WPS) is attached
must be able to sustain a static load of min.
3000 lbs. (13.3 kN), applied in the directions
permitted by the work positioning system. Or, it
should be able to sustain two times the potential
impact load, whichever is greater; see 1926.502.
However, if more than one work positioning
system is attached to an anchorage, then the
strength mentioned above must be multiplied by
the number of WPS attached to the anchorage.
•
Restraint: The strength requirement of
anchorages which are selected for restraint
and travel restraint systems is min. of 1000 lbs.
(4.5 kN) static load applied in the directions
permitted by the system. If more than one
restraint and travel restraint system is attached
to anchorage, then the 1000 lbs. shall be
multiplied by the number of systems attached
to the anchorage to determine the min. strength
requirement.
•
Rescue: The minimum strength of the
anchorage selected for rescue should be such
that it is capable of sustaining a static load of
min. 3000 lbs. (13.3 kN) applied in the direction
permitted by the system. To determine the
strength requirement of the anchorage if
more than one rescue system is attached, then
multiply 3000 lbs. (13.3 kN) by the number of the
systems attached to the anchorage.
•
Swing Falls: Swing fall occurs when the
position of the anchorage point is not directly
above the point where a fall occurs. In such
a case if a fall were to occur, it will result in
pendulum swing of the fall victim and may also
cause them to strike nearby objects with force.
This may cause serious injury or even death.
Such swing falls may be minimized by ensuring
that the anchorage is directly overhead, and
by working as close to the anchorage point as
possible. Swing falls will substantially increase
the fall clearance required with a SRL or other
variable length connecting.
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D
WALT
•
The Capacity of the
full body harness
E
is up to 310 lbs. (140 kg) hence, the combined
weight (clothes, tools, shoes etc.) of a person
using these harnesses should not be more than
310 lbs. It is important to ensure that all the
components in the system are rated to a capacity
which is appropriate to the application.
•
Free Fall: As per ANSI Z359.11 the personal fall
arrest systems used with this equipment must be
rigged in such a way that the free fall does not
exceed 6 ft. (1.8 m). Restraint systems must be
rigged in such a way that no vertical free fall is
possible. Work positioning systems are required
to be rigged in a way that the free fall does not
exceed 2 ft. (0.6 m). Personal riding systems
must be rigged so that there is no vertical free
fall possible. Climbing systems must be rigged
so that free fall is less than 18 inches (46 cm).
Rescue systems must be rigged in such a way
D
WALT
that there is no vertical free fall. Contact
E
for any further information needed.
•
Extended Suspension: Using a full body
harness: A FBH 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
D
WALT
a seat support be used.
recommends
E
a seat board, suspension work seat, seat sling,
D
WALT
or a boatswain chair. Contact
for more
E
information on these items.
•
Fall Clearance: There should be sufficient
clearance below the user to allow the system to
arrest a fall to prevent the user from striking the
ground or any other obstruction. The clearance
required depends upon the following factors:
WARNING: It is important to consider the below mentioned limitations before using or installing this
equipment
.
WARNING: If the only available anchorage is situated below the attachment on the harness; and if there is a risk
of fall, then it is essential to use a lanyard with a properly rated energy absorber. It is important to ensure that
there is sufficient fall clearance below the user, see calculating total fall distance section for details.
Calculating Total Fall Distances:
•
Calculating Total Fall Distances: Total
Fall Clearance below worker is calculated
from Anchorage Connection. (A) Free Fall
Distance (lanyard length) + (B) Energy Absorber
Deceleration Distance + (C) Worker height
(includes height to worker D-ring and harness
stretch) + (D) Safety Factor. Care must be taken
to ensure that the total fall distance is clear
of obstructions, such as equipment, to avoid
contact with a lower level.
6 FEET FREE FALL -(A) Free Fall Distance + (B) Energy
Absorber Deceleration Distance + (C) Worker height +
(D) Safety Factor = 18.5 ft. (5.6 m)
12 FEET FREE FALL - (A) Free Fall Distance + (B) Energy
Absorber Deceleration Distance + (C) Worker height +
(D) Safety Factor = 19.5 ft. (5.9 m)
FREE FALL DISTANCE, TOTAL FALL DISTANCE, AND SYSTEM ELONGATION
6 FEET FREE FALL
After Fall
Before Fall
C)
Height of Worker
6 Ft. [ 1.83 M.]
Before Fall
12 FEET FREE FALL
After Fall
C)
Height of Worker
6 Ft. [ 1.83 M.]
ISEA Fall Protection User Guide 2018
•
Periodic Examination: Always keep the
instructions provided with the product. Take
the information from the markings on the
product and enter this information in the
identification sheet. To ensure the safety of the
user, it is essential to check the condition of the
equipment through periodic examinations of
the product. This equipment must be examined
by a competent person at least annually, strictly
complying with the manufacturer instructions.
Also, record the previous check on the attached
sheet. If the equipment is in heavy usage or is
used in a harsh environment, then the frequency
of inspection should be increased in accordance
with regulations. Also check that the markings
on the product are legible.
ANCHORAGE
Length of Lanyard
6 Ft. [ 1.83 M.]
B)
A)
Deceleration Distance
Total Estimate
3.5 Ft. [1.07 M.]
Fall Distance
18.5 Ft. [ 5.6 M.]
Harness Stretch
1 Ft. [ 0.3 M.]
To Worker's D-Ring
5 Ft. [ 1.50 M.]
D)
Safety Factor
3 Ft. [ 0.91 M.]
ANCHORAGE
Length of Lanyard
6 Ft. [ 1.83 M.]
B)
Deceleration Distance
A)
Total Estimate
4.5 Ft. [1.07 M.]
Fall Distance
19.5 Ft. [ 5.9 M.]
Harness Stretch
1 Ft. [ 0.3 M.]
To Worker's D-Ring
5 Ft. [ 1.50 M.]
D)
Safety Factor
3 Ft. [ 0.91 M.]
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