Falltech FT-X 82808SP0 Manual De Instrucciones Para El Usuario página 13

Figure 9 - MRFC Overhead Anchorage
.5
Y- Lateral
Figure 11 - FT-X Minimum Required Fall Clearance for 130 to 310 lbs. (59 to 141 kg) Users
Z- Minimum Required
Fall Clearance From
Working Surface
5.4.3 FT-X in Overhead, Non-Leading Edge Anchorage Application
[310 to 420 lbs. (141 to 11 kg) user]
The FT-X may be used may be used as a standard SRD in an overhead condition, in which the SRD is
installed anywhere in the allowable attachment area, which ranges from directly above the user to
level with the FBH D-ring, as shown in Figure 12.
The overhead condition minimum required fall clearance (MRFC) is calculated using four metrics,
measured from the walking-working surface: SRD Deceleration Distance, D-Ring Shift and Harness
Stretch [1 ft (0.3m)], Safety Factor [1.5 ft (0.5m)], and Swing Fall. The diagram in Figure 14 is calculated
using the performance data of the SRD and includes all four metrics listed previously to determine the
MRFC.
13
X-SRD Anchorage Height
Above Dorsal D-ring
Z- Minimum Required
Fall Clearance From
Working Surface
1
2
Figure 10 - MRFC Non-Overhead Anchorage
Z- Minimum Required
Fall Clearance From
Working Surface
1 foot (0.3 m)
increments along the
X-Axis represents the
Horizontal Distance
to Anchorage the
user is working away
from the SRD
Example 1:
If the user is working 3 feet (0.9 m) away from the
SRD, and the SRD is anchored between the user's
Dorsal D-Ring or up to 3.0 ft (0.9 m) above the
D-Ring. Minimum required fall clearance is 9 feet
(2.7 m) including swing fall.
Example 2:
If the user needs to work 4 feet (1.2 m) away from
the SRD along the edge, and the SRD is anchored
at foot level, the minimum required fall clearance
is 19 feet (5.8 m) including swing fall.
Figure 4 - MRFC Non-Overhead Anchorage
1 foot (0.3 m) incre-
ments up the Y-Axis
represent the Elevation
of the Anchorage from
the user's Dorsal D-Ring
Z- Minimum Required
Fall Clearance From
Working Surface