Ships and marine technology — Sea-going vessels — Windlasses and anchor capstans

This document specifies requirements for the design, construction, safety, performance and acceptance testing of windlasses and anchor capstans. This document is applicable to windlasses and anchor capstans of sea-going vessels, which have an electric, hydraulic, pneumatic or external drive, of the following types: — symmetrical double cable-lifter windlasses (type 1); — single cable-lifter windlasses (type 2); — single cable-lifter windlass units (types 3 and 4); — anchor capstans (type 5); — double cable-lifter windlasses with connecting shaft (type 6). For combined windlasses/mooring winches, ISO 3730 is applicable in addition to this document. NOTE Attention is drawn to the requirements of relevant Classification Societies or the government of the state whose flag the ship is entitled to fly.

Navires et technologie maritime — Navires de haute mer — Guindeaux et guindeaux-cabestans

General Information

Status
Published
Publication Date
22-Aug-2021
Current Stage
6060 - International Standard published
Start Date
23-Aug-2021
Due Date
28-Mar-2022
Completion Date
23-Aug-2021
Ref Project

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INTERNATIONAL ISO
STANDARD 4568
Fourth edition
2021-08
Ships and marine technology — Sea-
going vessels — Windlasses and
anchor capstans
Navires et technologie maritime — Navires de haute mer —
Guindeaux et guindeaux-cabestans
Reference number
ISO 4568:2021(E)
©
ISO 2021

---------------------- Page: 1 ----------------------
ISO 4568:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 4568:2021(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Design and construction . 3
4.1 Chain cable. 3
4.2 Cable-lifter . 3
4.3 Warping ends . 3
4.4 Mooring winch . 4
4.5 Strength requirements . 4
4.6 Braking system . 4
4.6.1 Control braking system . 4
4.6.2 Cable-lifter brake . 4
4.7 Emergency stop . 5
4.8 Protection . 5
4.9 Speed control . 5
4.10 Direction of motion of operating devices . 5
4.11 Drive equipment . 5
4.12 Remote control devices . 6
5 Requirements . 6
6 Acceptance tests . 7
7 Designation . 8
8 Marking . 8
Annex A (informative) Additional information from the purchaser .11
Bibliography .12
© ISO 2021 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 4568:2021(E)

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 non-governmental, in liaison with ISO, also take part in the work.
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
editorial rules of the ISO/IEC Directives, Part 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).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 4, Outfitting and deck machinery, in collaboration with Technical Committee ISO/TC 4,
Rolling bearings.
This fourth edition cancels and replaces the third edition (ISO 4568:2006), which has been technically
revised.
The main changes compared to the previous edition are:
— the definitions of working load (3.1), nominal size (3.2) and overload pull (3.3) have been revised;
— the definition of nominal recovery speed (former 3.5 in the previous edition) has been deleted;
— new definitions for windlass (3.5), double cable-lifter windlass with connection shaft (3.10) and
control braking system (3.11) have been added;
— requirements have been added on: the mooring winch, in 4.4 and 5.4; the design of the cable lifter,
in 4.6.2.2; and the electric motor, in 4.11.2 and 4.11.3;
— the strength requirements have been updated in 4.5;
— test methods have been added in 6.3 to 6.9.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved

---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 4568:2021(E)
Ships and marine technology — Sea-going vessels —
Windlasses and anchor capstans
1 Scope
This document specifies requirements for the design, construction, safety, performance and acceptance
testing of windlasses and anchor capstans.
This document is applicable to windlasses and anchor capstans of sea-going vessels, which have an
electric, hydraulic, pneumatic or external drive, of the following types:
— symmetrical double cable-lifter windlasses (type 1);
— single cable-lifter windlasses (type 2);
— single cable-lifter windlass units (types 3 and 4);
— anchor capstans (type 5);
— double cable-lifter windlasses with connecting shaft (type 6).
For combined windlasses/mooring winches, ISO 3730 is applicable in addition to this document.
NOTE Attention is drawn to the requirements of relevant Classification Societies or the government of the
state whose flag the ship is entitled to fly.
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.
ISO 1704, Ships and marine technology — Stud-link anchor chains
ISO 3730, Shipbuilding and marine structures — Mooring winches
ISO 3828, Shipbuilding and marine structures — Deck machinery — Vocabulary and symbols
ISO 4413, Hydraulic fluid power — General rules and safety requirements for systems and their components
ISO 6482, Shipbuilding — Deck machinery — Warping end profiles
ISO 7825, Shipbuilding — Deck machinery — General requirements
IEC 60092 (all parts), Electrical installations in ships
IEC 60529, Degrees of protection provided by enclosures (IP Code)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 3828 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org
© ISO 2021 – All rights reserved 1

---------------------- Page: 5 ----------------------
ISO 4568:2021(E)

3.1
working load
F
w
continuous working load that the prime mover of the windlass or anchor
capstan is able to apply for 30 min, derived from the chain cable diameter and the chain cable grade
3.2
nominal size
size expressed in terms of chain cable diameter, in millimetres, grade of
chain cable, holding load and maximum anchorage depth
Note 1 to entry: When the maximum anchorage depth is below 82,5 m, it is not expressed.
EXAMPLE 100/3/45- 100 m is the size designation of a windlass for a 100 mm diameter chain cable of IACS
1)
Grade 3, with a holding load of 45 % of the breaking load of the chain cable, and a maximum anchorage depth of
100 m.
3.3
overload pull
short-time overload capacity necessary for the windlass or anchor capstan to break ground, provided
by the windlass or anchor capstan prime mover
3.4
holding load
maximum static load on the chain cable that the cable-lifter brake can withstand
3.5
windlass
machine in which the cable-lifter is mounted on a horizontal shaft
3.6
symmetrical double cable-lifter windlass (type 1)
fully powered windlass with two symmetrical cable-lifters
Note 1 to entry: For the purposes of designation, it corresponds to Type 1, see Clause 7 and Figure 1.
3.7
single cable-lifter windlass (type 2)
single fully powered windlass with one cable-lifter
Note 1 to entry: For the purposes of designation, it corresponds to Type 2, see Clause 7 and Figure 2.
3.8
single cable-lifter windlass unit (types 3 and 4)
windlass unit in which one cable-lifter is provided with an external power source
Note 1 to entry: For the purposes of designation, it corresponds to Types 3 and 4, see Clause 7 and Figures 3
and 4.
3.9
anchor capstan (type 5)
machine in which the cable-lifter is mounted on a vertical shaft
Note 1 to entry: See Figure 5 and ISO 3828 for a complete definition.


1) International Association of Classification Societies.
2 © ISO 2021 – All rights reserved

---------------------- Page: 6 ----------------------
ISO 4568:2021(E)

3.10
double cable-lifter windlass with connecting shaft (type 6)
fully powered windlass in which two drive motors with two cable-lifters are connected by a shaft joint
Note 1 to entry: The cable-lifter can be driven by either drive motor.
Note 2 to entry: See Figure 6.
3.11
control braking system
device capable of automatically and stably braking a windlass or anchor capstan when the later are
stopped, downtime, power off or any other non-operating state
3.12 Right- and left-hand windlasses
3.12.1
right-hand windlass
windlass where the drive for the cable-lifter or cable-lifter unit is on the right-hand side of the cable-
lifter, in relation to an observer situated on the side of the motor, power supply or controller
3.12.2
left-hand windlass
windlass where the drive for the cable-lifter or cable-lifter unit is on the left-hand side of the cable-
lifter, in relation to an observer situated on the side of the motor, power supply or controll
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 4568
ISO/TC 8/SC 4
Ships and marine technology — Sea-
Secretariat: SAC
going vessels — Windlasses and
Voting begins on:
2021­05­25 anchor capstans
Voting terminates on:
2021­07­20
Member bodies are requested to consult relevant national interests in ISO/TC
4 before casting their ballot to the e­Balloting application.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 4568:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2021

---------------------- Page: 1 ----------------------
ISO/FDIS 4568:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH­1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/FDIS 4568:2021(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Design and construction . 3
4.1 Chain cable. 3
4.2 Cable­lifter . 3
4.3 Warping ends . 3
4.4 Mooring winch . 4
4.5 Strength requirements . 4
4.6 Braking system . 4
4.6.1 Control braking system . 4
4.6.2 Cable­lifter brake . 4
4.7 Emergency stop . 5
4.8 Protection . 5
4.9 Speed control . 5
4.10 Direction of motion of operating devices . 5
4.11 Drive equipment . 5
4.12 Remote control devices . 6
5 Requirements . 6
6 Acceptance tests . 7
7 Designation . 8
8 Marking . 8
Annex A (informative) Additional information from the purchaser .11
Bibliography .12
© ISO 2021 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO/FDIS 4568:2021(E)

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 non­governmental, in liaison with ISO, also take part in the work.
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
editorial rules of the ISO/IEC Directives, Part 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).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 4, Outfitting and deck machinery, in collaboration with Technical Committee ISO/TC 4,
Rolling bearings.
This fourth edition cancels and replaces the third edition (ISO 4568:2006), which has been technically
revised.
The main changes compared to the previous edition are:
— the definitions of working load (3.1), nominal size (3.2) and overload pull (3.3) have been revised;
— the definition of nominal recovery speed (former 3.5 in the previous edition) has been deleted;
— new definitions for windlass (3.5), double cable­lifter windlass with connection shaft (3.10) and
control braking system (3.11) have been added;
— requirements have been added on: the mooring winch, in 4.4 and 5.4; the design of the cable lifter,
in 4.6.2.2; and the electric motor, in 4.11.2 and 4.11.3;
— the strength requirements have been updated in 4.5;
— test methods have been added in 6.3 to 6.9.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved

---------------------- Page: 4 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 4568:2021(E)
Ships and marine technology — Sea-going vessels —
Windlasses and anchor capstans
1 Scope
This document specifies requirements for the design, construction, safety, performance and acceptance
testing of windlasses and anchor capstans.
This document is applicable to windlasses and anchor capstans of sea­going vessels, which have an
electric, hydraulic, pneumatic or external drive, of the following types:
— symmetrical double cable-lifter windlasses (type 1);
— single cable-lifter windlasses (type 2);
— single cable-lifter windlass units (types 3 and 4);
— anchor capstans (type 5);
— double cable-lifter windlasses with connecting shaft (type 6).
For combined windlasses/mooring winches, ISO 3730 is applicable in addition to this document.
NOTE Attention is drawn to the requirements of relevant Classification Societies or the government of the
state whose flag the ship is entitled to fly.
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.
ISO 1704, Ships and marine technology — Stud-link anchor chains
ISO 3730, Shipbuilding and marine structures — Mooring winches
ISO 3828, Shipbuilding and marine structures — Deck machinery — Vocabulary and symbols
ISO 4413, Hydraulic fluid power — General rules and safety requirements for systems and their components
ISO 6482, Shipbuilding — Deck machinery — Warping end profiles
ISO 7825, Shipbuilding — Deck machinery — General requirements
IEC 60092 (all parts), Electrical installations in ships
IEC 60529, Degrees of protection provided by enclosures (IP Code)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 3828 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
© ISO 2021 – All rights reserved 1

---------------------- Page: 5 ----------------------
ISO/FDIS 4568:2021(E)

3.1
working load
F
w
continuous working load that the prime mover of the windlass or anchor
capstan is able to apply for 30 min, derived from the chain cable diameter and the chain cable grade
3.2
nominal size
size expressed in terms of chain cable diameter, in millimetres, grade of
chain cable, holding load and maximum anchorage depth
Note 1 to entry: When the maximum anchorage depth is below 82,5 m, it is not expressed.
EXAMPLE 100/3/45­ 100 m is the size designation of a windlass for a 100 mm diameter chain cable of IACS
1)
Grade 3, with a holding load of 45 % of the breaking load of the chain cable, and a maximum anchorage depth of
100 m.
3.3
overload pull
short-time overload capacity necessary for the windlass or anchor capstan to break ground, provided
by the windlass or anchor capstan prime mover
3.4
holding load
maximum static load on the chain cable that the cable-lifter brake can withstand
3.5
windlass
machine in which the cable­lifter is mounted on a horizontal shaft
3.6
symmetrical double cable-lifter windlass (type 1)
fully powered windlass with two symmetrical cable-lifters
Note 1 to entry: For the purposes of designation, it corresponds to Type 1, see Clause 7 and Figure 1.
3.7
single cable-lifter windlass (type 2)
single fully powered windlass with one cable-lifter
Note 1 to entry: For the purposes of designation, it corresponds to Type 2, see Clause 7 and Figure 2.
3.8
single cable-lifter windlass unit (types 3 and 4)
windlass unit in which one cable-lifter is provided with an external power source
Note 1 to entry: For the purposes of designation, it corresponds to Types 3 and 4, see Clause 7 and Figures 3
and 4.
3.9
anchor capstan (type 5)
machine in which the cable­lifter is mounted on a vertical shaft
Note 1 to entry: See Figure 5 and ISO 3828 for a complete definition.


1) International Association of Classification Societies.
2 © ISO 2021 – All rights reserved

---------------------- Page: 6 ----------------------
ISO/FDIS 4568:2021(E)

3.10
double cable-lifter windlass with connecting shaft (type 6)
fully powered windlass in which two drive motors with two cable-lifters are connected by a shaft joint
Note 1 to entry: The cable-lifter can be driven by either drive motor.
Note 2 to entry: See Figure 6.
3.11
control braking system
device capable of automatically and stably braking a windlass or anchor capstan when the later are
stopped, downtime, power off or any other non-operating state
3.12 Right- and left-hand windlasses
3.12.1
right-hand windlass
windlass where the drive for the cable­lifter or cable­lifter unit is on the right­hand side of the cable­
lifter, in re
...

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