The following conditions (Figs. 54 and 55) are often caused
l>y
a sudden
release
of
tension and the resulting rebound
of
the rope from its loaded condi-
tion. The strands and wires are trapped in the position shown and can not return
to their original position. These conditions can also
result from a build up
of
twist in the rope.
Figure 54. Improper handling, rope rotation or sudden release of a load can cause a 'popped core'.
Figure 55. A 'birdcage' resulting from a sudden release
of
the load causes damage to the rope
structure.
Figure
56. 'Snagged wires' can be the result
of
damage to the rope in service or from unequal
adjustment
of
wire within the rope's strands.This condition can be accentuated
by
lack oflubri-
cation.
80'
Wire Rope Technical Board - Wire Rope Users Manual, Fourth Edition
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