06-27-2011
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Senior Member
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Join Date: Nov 2008
Posts: 1,304
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So, after all of the debate, DyneemaŽ is now aproaved for off-shore racing?
...unless I read this wrong.
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3.14.6 Lifeline Minimum Diameters, Required Materials, Specifications
a) Lifelines shall be of :
- stranded stainless steel wire or
- single-braided DyneemaŽ rope
b) The minimum diameter is specified in table 8 below.
c) Stainless steel lifelines shall be uncoated and used without closefitting
sleeving, however, temporary sleeving may be fitted provided
it is regularly removed for inspection.
d) When stainless wire is used, Grade 316 is recommended.
e) When DyneemaŽ is used, Grade SK75 or SK78 is recommended.
f) A taut lanyard of synthetic rope may be used to secure lifelines
provided the gap it closes does not exceed 100 mm (4 in). This
lanyard shall be replaced annually at a minimum.
g) All wire, fittings, anchorage points, fixtures and lanyards shall
comprise a lifeline enclosure system which has at all points at least
the breaking strength of the required lifeline wire.
TABLE 8
LOA minimum wire or rope diameter
under 8.5 m (28ft) 3 mm (1/8 in)
8.5m - 13 m 4 mm (5/32 in)
over 13 m (43 ft) 5 mm (3/16 in)
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Also remember that the words "recomended" and "shall" are different.
Let the debate begin....
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(when asked how he reached the starting holds on a difficult rock climbing problem that clearly favored taller climbers - he was perhaps 5'5")
"Well, I just climb up to them."
by Joe Brown, English rock climber
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