5
LIMITATIONS:
Always consider the following application limitations before using this equipment:
1. CAPACITY:
The Full Body Harness is designed for use by persons with a
combined weight (clothing, tools, etc.) ranging from 130 lbs (59 kg) to 310 lbs (140
kg). Make sure all of the components in your system are rated to a capacity
appropriate to your application.
2. FREE FALL:
Personal fall arrest systems used with this equipment must be rigged
to limit the free fall to 6 feet (1.8m). Restraint systems must be rigged so that no
vertical free fall is possible. Work positioning systems must be rigged so that free
fall is limited to 2 feet (.6 m) or less. Personnel riding systems must be rigged so
that no vertical free fall is possible. Climbing systems must be rigged so that free
fall is limited to 18 in. (.46 cm) or less. Rescue systems must be rigged so that no
vertical free fall is possible.
3. FALL CLEARANCE:
Figure 3 illustrates the components of a Fall Arrest. There
must be sufficient 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
• Free Fall Distance
• Worker Height
• Connecting Subsystem Length
• Deceleration Distance
• Attachment Element Movement and Harness Stretch
4. 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.
5. 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 Ultra-Safe for more information on these
items.
6. 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.
7. 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.
Standard webbing is limited to 180° F.
NOTE: 310 lbs (140 kg) is the maximum capacity allowed by ANSI/ASSE
Z359.11. Ultra-Safe safety harnesses are factory tested to a maximum
capacity of 400 lbs (182 kg).
NOTE: Refer to the instructions included with your Fall Arrest subsystem for
specifics regarding Fall Clearance calculation.
WARNING!
When working with tools, materials, or in high temperature
environments, ensure that associated fallprotection equipment
can withstand high temperatures, or provide protection for those
items.
WARNING!
Although PVC coated and zinc plated hardware exhibit excellent
corrosion resistance in chemical, acidic, alkaline, and atmospheric
conditions, frequent inspections may be required. Consult with
Ultra-Safe if you question the use of this equipment in hazardous
environments.
HOW TO MEASURE FOR A FULL BODY HARNESS:
(Measurements are over clothing)
Proper fit is critical for personal safety & working comfort. The chart
below specifies how to measure your body for the correct
fit of fall protection equipment.
USA INDUSTRY SYMBOLS
Size
Waist (Inches)
Lbs
XS
24-30
100-130
S
28-34
130-160
M-L
32-40
160-220
XL
38-48
220-250
2XL
46-54
250-280
3XL
54-58
280-310
4XL
58-62
310-350
5XL
62-66
350-400
Fall Arrest
Positioning
Suspension
Fall Prevention
Retrieval
Ladder Climbing