Wire rope Flashcards
The most common classes of 6 strand rope used with running rigging is either?
6X19 or 6X36
all ATON vessels shall use six- stranded wire rope with an IWRC.
Newer vessels will normally use special construction wire ropes or 6 strand IWRC wire ropes.
Ropes are referred to by their nominal diameter. New wire rope is manufactured from
5-8 percent larger than the nominal diameter.
rope used for personnel lifting must have a minimum safety factor ?
Of seven.
(This means it must be capable of supporting seven times the maximum intended load.) Rotation resistant rope used for personnel lifting must have a minimum safety factor of ten.
Wire rope shall be externally inspected?
quarterly for wear, defects, and proper lubrication.
In addition to the external quarterly inspection, wire rope shall be?
unshipped and lubricated at least annually. This inspection is typically accomplished in conjunction with the level 1 crane inspection.
Wire rope that has not been in use for?
30 days or more shall be subject to a quarterly inspection.
Always complete the annual chafe rate (ACR) on chafe measurements? There should be two sizes?
found measurement and new
Modeer shackle is used for what?
To haul chain
two most common chain links in the CG are?
open link and stud link
any chain type shall be
8 or better 7 for gripe chains
1/2 in wire rope moorings are used in ?
Fast water, and are usually 45 ft called a river shot.
MOORSEL mooring selection guide is used for?
TO HELP WITH MOORING DEPTH AND CHAIN SIZE
chain has three parts?
Riser, chafe, and bottom
Its important to know the condition of chain during the last visit in order to identify annual wear rates?
Inspect the most worn parts of the chain using the caliper
