6x26
Warrington Seale
Compacted Strand
IWRC
8x26
Warrington Seale
Compacted Strand
IWRC
Plastic Coated
Wire Rope
Plastic Filled
Wire Rope
Plastic Processed
Wire
Rope
Cross
Sections.
Plastic Coated
IWRC
Wire Rope
Corrosion can occur
in
plastic enhanced ropes, and have the same effect as in
standard ropes. Core condition and damage can be detected by diameter reduc-
tion and lengthening
of
lay.
Separation
of
plastic coating is not necessarily an indicator
of
rope deteriora-
tion, however, it indicates a potential problem, and warrants close observation.
COMPACTED
ROPE AND COMPACTED STRAND ROPES
During manufacture, these specialty ropes are drawn through dies and/or
swaged to compact the metal content
of
the rope. Strands may be compacted
before the rope
is
closed, or the entire rope compacted.
When inspecting these ropes follow basic guidelines. Diameter and lay mea-
surement procedures are no different than with standard ropes.
It
is essential to
record a new rope's actual diameter and lay length immediately after installation
to establish the base line for comparison at future inspections.
Wire breaks can
be
more difficult to detect than in standard ropes, because the
ends
of
the break
do
not always displace or separate. Any suspected wire break
should be viewed with a magnifying glass to determine
if
it is a break. Bending
the rope or observing it moving slowly over a sheave helps the inspector detect
broken wires.
Due to compaction, the spaces between wires and strands inside a rope are
minimized, and lubrication is critical so that sliding and adjusting
of
wires and
strands is not restricted. The inspector should be observant to the lack
of
or need
for lubricant.
19x
19
Seale
Compacted Strand
3 x
19
Seale
Compacted (Swaged)
6x26
Wanington Seale
Compacted (Swaged)
IVVRC
6x31
WalTington Seale
Compacted (Swaged)
IWRC
70
• Wire Rope Technical Board - Wire Rope Users Manual, Fourth Edition
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