DNV GL SHIP TECHNOLOGY I-4-3 PDF

General

1. These Guidelines address issues associated with unidirectional fibre strand cables intended for sail boat rigging. These cables may be intended for different purposes in staying a rig.

2. In the following, conditions are outlined under which these types of cables can be accepted by GL to be of an approved type of rigging for sailing yachts under the premises of Chapter 2 – Guidelines for the Design and Construction of Large Modern Yacht Rigs. A "Type Approval" Certificate would be issued.

3. Issues listed below especially address particular characteristics of the fibre types themselves as well as characteristics of the completed cable made of a strand of dry fibres (PBO) ¹ or of impregnated strands of carbon fibres, including their typical end fittings. Optionally, other cable materials or configurations may be dealt with upon special agreement with GL.

4. The following is considered to be standard basic requirements of what is necessary to be described / discussed/ tested. Unusual design, unexpected intermediate findings or test results may make deviating considerations and assessments necessary.

5. The approval is only valid for products alike the ones tested, described and documented. In case of doubt, GL reserves the right to evaluate whether products are alike or not in the understanding of these Guidelines.

6. Provided the required documentation is conclusive in the sense of these Guidelines and the required tests were passed successfully, a type approval certificate would be issued naming particular sizes or size categories of cables and confirming nominal static ultimate tensile load, maximum working load and corresponding tensile stiffness. A reference note will be given to follow manufacturer's instructions, maintenance and replacement schedules. The GL type approval logo may be displayed on the product:

¹ PBO: Poly p-phenylene-2,6-benzobisoxazole