ISO 13742:2020 船舶および海洋技術—船舶の係留および曳航設備—上部ローラーのないユニバーサルフェアリーダー | ページ 2

Foreword

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The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, 1. In particular, the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, 2 (see www.iso.org/directives ).

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents ).

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This document was prepared Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 4, Outfitting and deck machinery.

This second edition cancels and replaces the first edition (ISO 13742:2012), which has been technically revised.

The main changes compared to the previous edition are as follows:

• technical guidelines have been added in 7.3 and 7.4;
• the definition of SWL (3.1) has been reworded;
• the object lines and key numbers in Figures 1, 2, 3 and 4 have been amended;
• the values of “t” for the lower horizontal roller in Table 5 (former Table 3) have been amended;
• the thickness of the bushes and washers have been added in Table 5 (former Table 3);
• the numbering of A.2.2, A.3 and A.4 have been corrected;
• the dimension line (θ₁) in Figure A.2 has been amended;
• the descriptions in Clause A.3 have been amended;
• technical information on FEM and strength calculation have been added in A.3.2 and A.3.3.

Introduction

The universal fairlead is a type of ship’s mooring fitting installed on board to lead the mooring rope from the ship’s inboard to outboard.

A universal fairlead without upper roller is used for vessels in which the mooring deck level is higher than quay side.

1 Scope

This document specifies the types, nominal sizes, dimensions and materials, as well as construction, manufacturing and marking requirements, for universal fairleads without upper roller(s) installed to lead the mooring rope of a ship.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography