NOR Amendment 1: Lifelines

2010 Pacific Cup

NOR amendment #1

Appendix IV

New paragraph

25. Dyneema lifelines. (OSR 3.14.6): OSR 3.14.6 is modified to allow Dyneema lifelines meeting the provisions of this paragraph in the 2010-2011 version of the OSR. For the purposes of RRS 49.2, Dyneema lifelines shall be considered to be “wire”. For the purpose of interpreting 3.14.6g, PCYC considers spliced Dyneema terminations to retain 90% of the line’s breaking strength, and knots to retain 50% of the breaking strength.

For convenience, the 2010 version of 3.14.6 is duplicated here:

3.14.6 Lifeline Minimum Diameters, Required Materials, Specifications   

a) Lifelines shall be of : - stranded stainless steel wire or   - single-braided Dyneema® rope     

b) The minimum diameter is specified in table 8 below.   

c) Stainless steel lifelines shall be uncoated and used without close-fitting 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 Dyneema® 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