ISO 24042:2020

INTERNATIONAL ISO
STANDARD 24042
First edition
2020-10
Liquid cargo handling equipment —
Crude oil offloading system —Tandem
mooring winches
Équipement pour la manutention de cargaisons liquides — Systèmes
de déchargement de pétrole brut — Treuils d'amarrage en tandem
Reference number
©
ISO 2020
© ISO 2020
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ii © ISO 2020 – All rights reserved

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 . 4
5.1 General requirements . 4
5.2 Material stresses . 4
5.3 Basic calculations . 4
5.4 Drum and hawser . 4
5.5 Quick release mechanism . 5
5.6 Brake . 5
5.7 Operating device . 5
5.8 Auxiliary equipment . 5
6 Acceptance tests . 5
6.1 Test items . 5
6.1.1 No-load test . 5
6.1.2 Hawser deployment and recovery test . 6
6.1.3 Braking test . 6
6.1.4 SWL test . 6
6.1.5 Quick release function test . 6
6.1.6 Full load quick release test . 6
7 Designation system . 6
7.1 Designation of product models . 6
7.2 Nameplate . 7
Foreword
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This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 4, Outfitting and deck machinery.
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iv © ISO 2020 – All rights reserved

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