Appendix E
The following steps tend to reduce cabling:
• Reduce wire rope length. Longer wire rope lengths cause more rota-
tion, due to unlaying, than shorter wire rope lengths.
• Replace fiber core wire rope with an IWRC wire rope. Fiber core wire
ropes have a higher torque factor than IWRC wire ropes.
• Eliminate odd-part reeving. Even number
of
parts is more stable than odd.
• In installations where the wire rope dead end is on the load block, re-
reeve to the next higher number
of
parts, and dead end the wire rope on
the fixed block.
• While maintaining the same design factor, use a smaller size wire rope.
• Increase the spread between the wire rope falls. Use either larger
sheaves,
or
dead end the wire rope away from the wire rope falls
(check the integrity
of
the structure).
• Restrain the load block with a tag line.
Wire Rope Technical Board - Wire Rope Users Manual, Fourth Edition
·145
To Next Page
Loading...
