IEC 60092-352:2025
(Main)Electrical installations in ships - Part 352: Selection, installation, and operating conditions of cables
Electrical installations in ships - Part 352: Selection, installation, and operating conditions of cables
IEC 60092-352:2025 provides the basic requirements for the selection, installation and operating conditions of electrical cables intended for fixed electrical systems on board ships at voltages (U) up to and including Um 18/30 (36) kV, symmetrical category cables and fibre optic cables.
The reference to fixed systems includes those that are subjected to vibration (due to the movement of the ship) or movement (due to motion of the ship) and not to those that are intended for frequent flexing.
Cables subject to frequent or continual flexing use, which can withstand the mechanical stress and the environment they are exposed to, are detailed in other IEC specifications such as IEC 60227 and IEC 60245. Flexible cables are frequently used for retractable thrusters, elevators, moving decks, cranes, shore connections and other moving applications on board ships.
This fourth edition cancels and replaces the third edition published in 2005. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) modification of the part title;
b) complete review of the document and establishment of the match with all other standards from the group IEC 60092-350 to IEC 60092-379;
c) addition of terms and definitions;
d) addition of technical requirements for the installation of symmetrical category cables with transmission characteristics up to 1 000 MHz;
e) addition of the technical requirements for the installation of fibre optic cables;
f) addition of technical requirements for the installation of cables for installation between areas with and without explosive atmospheres
General Information
Relations
Standards Content (Sample)
IEC 60092-352 ®
Edition 4.0 2025-10
INTERNATIONAL
STANDARD
REDLINE VERSION
Electrical installations in ships -
Part 352: Selection, installation, and operating conditions of cables
ICS 47.020.60; 29.060.20 ISBN 978-2-8327-0812-5
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either
IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright
or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local
IEC member National Committee for further information.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Discover our powerful search engine and read freely all the
The advanced search enables to find IEC publications by a publications previews, graphical symbols and the glossary.
variety of criteria (reference number, text, technical With a subscription you will always have access to up to date
committee, …). It also gives information on projects, content tailored to your needs.
replaced and withdrawn publications.
Electropedia - www.electropedia.org
The world's leading online dictionary on electrotechnology,
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published containing more than 22 500 terminological entries in English
details all new publications released. Available online and and French, with equivalent terms in 25 additional languages.
once a month by email. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer
Service Centre: sales@iec.ch.
CONTENTS
FOREWORD . 4
INTRODUCTION . 1
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Types, construction, installation, and operating conditions of cables. 10
4.1 Types of cables . 10
4.2 Voltage rating . 10
4.2.1 Power cables . 10
4.2.2 Control and instrumentation cables . 12
4.3 Cross-sectional areas of conductors and Current carrying capacities . 12
4.3.1 Cross-sectional areas of conductors . 12
4.3.2 Current carrying capacities . 14
4.3.3 Current ratings for continuous service . 14
4.3.4 Correction factors for different ambient air temperatures . 16
4.3.5 Correction factors for short time duty . 17
4.3.6 Correction factors for cable grouping . 20
4.4 Voltage drop . 21
4.5 Estimation of lighting loads . 21
4.6 Parallel connection of cables . 21
4.7 Separation of circuits . 21
4.8 Short circuit capacity (withstand capability). . 21
4.9 Conductor . 22
4.10 Insulation material . 22
4.11 Screen, core screen or shield . 22
4.12 Metallic braid or armour . 22
4.13 Sheathing material . 22
4.14 Fire performance . 23
4.15 Cable runs . 23
4.16 Cable installation methods in relation to electromagnetic interference . 25
4.17 Mechanical protection . 25
4.17.1 General . 25
4.17.2 Earthing of metal coverings and of mechanical protection of cables . 26
4.18 BendingBend radius . 26
4.19 Supports and fixings . 27
4.20 Cables penetrating bulkheads and decks . 28
4.21 Installation in metallic pipes or conduits or trunking . 28
4.22 Installation in non-metallic pipes, conduits, trunking, ducts or capping and
casing . 29
4.23 Installation in battery compartments . 30
4.24 Installation in refrigeration spaces. 30
4.25 Tensile stress . 30
4.26 Special precautions requirements for single-core cables for AC wiring . 30
4.27 Cable ends . 31
4.28 Joints and tappings (branch circuits) . 32
4.29 JointConnection boxes . 33
4.30 Installation of symmetrical category cables with transmission characteristics
up to 1 000 MHz on board of ships and offshore units . 33
4.31 Requirements for the installation of fibre optic cables on board ships and
offshore units . 34
4.32 Installation of cables between areas with and without explosive atmospheres . 34
4.33 Special safety requirements from SOLAS regulations . 35
Annex A (informative) Tabulated current carrying capacities – Defined installations . 36
A.1 General . 36
A.2 Reference methods of installation . 36
A.3 Other methods of installation . 37
A.4 Correction factors for cable grouping . 37
A.4.1 General . 37
A.4.2 Installation methods B and C . 37
A.4.3 Installation methods E and F . 38
Annex B (informative) Tabulated current carrying capacities – General installations . 49
Annex C (informativenormative) Fire stops . 56
Annex D (informative) Cable splicing Method of preparation of a spliced connection . 57
Annex E (informative) Recommendations for cable installation methods in relation to
electromagnetic interference . 58
Bibliography . 59
Figure 1 – Correction factors for half-hour and one-hour service . 18
Figure 2 – Time constant of cables . 19
Figure 3 – Correction factor for intermittent service . 20
Figure 4 – Correct cable arrangements – AC cables . 31
Figure 5 – Correct cable arrangements – DC cables . 31
Figure 6 – Alternation of phases – Incorrect cable arrangements . 32
Table 1 – Selection of cables for AC systems . 12
a
Table 2 – Sizes of earth continuity conductors conductor and equipment earthing
connections . 13
Table 3 – Correction factor for various ambient air temperatures . 17
Table 4 – Bending radii Bend radius for cables rated up to 1,8/3 kV . 27
Table 5 – Bending radii Bend radius for cables rated at 3,6/6,0 (7,2) kV and above . 27
Table A.1 – Current carrying capacities in amperes – Copper conductor temperature:
60 °C and reference ambient air temperature: 45 °C . 39
Table A.2 – Current carrying capacities in amperes – Copper conductor temperature:
70 °C and reference ambient air temperature: 45 °C . 40
Table A.3 – Current carrying capacities in amperes – Copper conductors temperature:
85 °C and reference ambient air temperature: 45 °C . 41
Table A.4 – Current carrying capacities in amperes – Copper conductors temperature:
90 °C and reference ambient air temperature: 45 °C . 42
Table A.5 – Current carrying capacities in amperes – Copper conductors temperature:
95 °C and Reference ambient air temperature: 45 °C . 43
Table A.6 – Correction factors for groups of more than one circuit or of more than one
multicore cable to be used with current carrying capacities of Table A.1 to Table A.5 . 44
Table A.7 – Correction factors for group of more than one multicore cable to be
applied to reference ratings for multicore cables in free air – Method of installation E
Table A.1 to Table A.5 . 45
Table A.8 – Correction factors for groups of more than one circuit of single-core cables
to be applied to reference rating for one circuit of single-core cables in free air –
Method of installation F in Table A.1 to Table A.5 . 47
Table B.1 – Maximum permissible service temperature of a conductor . 50
Table B.2 – Current carrying capacities in continuous service at maximum rated
conductor temperature of 60 °C . 51
Table B.3 – Current carrying capacities in continuous service at maximum rated
conductor temperature of 70 °C . 52
Table B.4 – Current carrying capacities in continuous service at maximum rated
conductor temperature of 85 °C . 53
Table B.5 – Current carrying capacities in continuous service at maximum rated
conductor temperature of 90 °C . 54
Table B.6 – Current carrying capacities in continuous service at maximum rated
conductor temperature of 95 °C .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.