ISO 24042:2020

DRAFT INTERNATIONAL STANDARD
ISO/DIS 24042
ISO/TC 8/SC 4 Secretariat: SAC
Voting begins on: Voting terminates on:
2020-03-16 2020-06-08
Liquid cargo handling equipment — Crude oil offloading
system —Tandem mooring winch
ICS: ISO ics
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ISO/DIS 24042:2020(E)
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PROVIDE SUPPORTING DOCUMENTATION. ISO 2020

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ISO/DIS 24042:2020(E)

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ii © ISO 2020 – All rights reserved

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ISO/DIS 24042:2020(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Types . 2
4.1 Left-hand winch . 2
4.2 Right-hand winch . 2
4.3 Bottom-side winch. 2
4.4 Top-side winch . 2
5 Design . 3
5.1 General requirements . 3
5.2 Material stresses . 3
5.3 Basic calculation . 3
5.4 Drum and hawser . 4
5.5 Quick release mechanism . 4
5.6 Brake . 5
5.7 Operating device . 5
5.8 Auxiliary equipment . 5
6 Acceptance tests . 5
6.1 Test items . 5
7 Designation system . 6
© ISO 2020 – All rights reserved iii

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ISO/DIS 24042:2020(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 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
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URL: www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee 8, Ships and marine technology, Subcommittee 4,
Outfitting and deck machinery.
iv © ISO 2020 – All rights reserved

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DRAFT INTERNATIONAL STANDARD ISO/DIS 24042:2020(E)
Liquid cargo handling equipment — Crude oil offloading
system —Tandem mooring winch
1 Scope
This document specifies the design, operation, performance, and acceptance tests of tandem mooring
winches.
This document is applicable to the design, manufacture and acceptance of tandem mooring winches for
the crude oil offloading system of liquid cargo handling equipment.
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 (includin
...