ISO 13776:2012

INTERNATIONAL ISO
STANDARD 13776
First edition
2012-07-01
Ships and marine technology — Ship’s
mooring and towing fittings — Pedestal
fairleads
Navires et technologie maritime — Corps-morts et ferrures de
remorquage de navires — Chaumards à piédestal
Reference number
©
ISO 2012
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ii © ISO 2012 – All rights reserved

Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Nominal sizes . 1
5 Dimensions . 1
6 Materials . 1
7 Manufacturing and inspection . 1
8 Marking . 2
Annex A (informative) Basis for strength assessment of pedestal fairleads . 6
Bibliography . 8
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
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Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 13776 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee
SC 4, Outfitting and deck machinery.
iv © ISO 2012 – All rights reserved

Introduction
The pedestal fairlead is a type of ship’s mooring fitting installed on board to lead and change the direction of
mooring ropes.
INTERNATIONAL STANDARD ISO 13776:2012(E)
Ships and marine technology — Ship’s mooring and towing
fittings — Pedestal fairleads
1 Scope
This International Standard specifies the design, size and technical requirements for pedestal fairleads installed
to lead the mooring rope of a ship.
2 Normative references
The following referenced documents are indispensable for the application 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.
ISO 13755, Ships and marine technology — Ship’s mooring and towing fittings — Steel rollers
IMO Circular MSC/Circ.1175, Guidance on shipboard towing and mooring equipment
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
safe working load
SWL
maximum load in kN on the rope that should normally be applied in service conditions
4 Nominal sizes
The nominal sizes, D , of pedestal fairleads are denoted by reference to the outside diameter of the roller in
n
millimetres from a basic series of preferred numbers.
The nominal sizes ar
...