IEC 60092-378:2024

Electrical installations in ships - Part 378: Optical fiber cables

IEC 60092-378:2024 is applicable to shipboard and offshore optical fibre cables, intended for fixed installations.
Cables designed to maintain functional integrity during fire given in 6.1 and to be installed in explosive atmospheres given in 6.2 are included.
The various types of optical fibre cables are given in Clause 6. The constructional requirements and test methods are aligned with those indicated in IEC 60092‑350, unless otherwise specified in this document.

General Information

• Status: Published
• Publication Date: 05-Nov-2024
• ICS: 29.060.20 - Cables
• ICS: 47.020.60 - Electrical equipment of ships and of marine structures
• Technical Committee: SC 18A - Electric cables for ships and mobile and fixed offshore units
• Drafting Committee: JWG 3 - TC 18/SC 18A/JWG 3
• Current Stage: PPUB - Publication issued
• Start Date: 15-Nov-2024
• Completion Date: 06-Nov-2024

Standards Content (Sample)

IEC 60092-378 ®
Edition 1.0 2024-11
INTERNATIONAL
STANDARD
Electrical installations in ships –
Part 378: Optical fiber cables

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.: [phone]
3, rue de Varembé [e-mail]
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 - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: [e-mail].
IEC 60092-378 ®
Edition 1.0 2024-11
INTERNATIONAL
STANDARD
Electrical installations in ships –

Part 378: Optical fiber cables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.20; 47.020.60 ISBN 978-2-8322-4907-9

– 2 – IEC 60092-378:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General requirements . 8
4.1 Temperature range of the cables . 8
4.2 Markings . 8
4.2.1 Indication of origin and fibre identification . 8
4.2.2 Continuity of marking . 8
4.3 Fibre identification . 8
4.3.1 General . 8
4.3.2 Colours of fibres in loose tubes. 8
4.4 Colours of units as buffer tubes, loose tubes and subunits of breakout cables . 8
5 Construction requirements . 9
5.1 General description . 9
5.1.1 Overview . 9
5.1.2 Unarmoured cables . 9
5.1.3 Armoured cables . 9
5.2 Optical fibres . 9
5.3 Tensile strength elements . 10
5.4 Cabling . 10
5.5 Inner covering . 10
5.5.1 General . 10
5.5.2 Thickness of inner covering . 10
5.6 Inner sheath . 11
5.6.1 General . 11
5.6.2 Material . 11
5.6.3 Application . 11
5.6.4 Thickness of inner sheath . 11
5.7 Braid armour . 11
5.7.1 General . 11
5.7.2 Braid wire diameter . 11
5.7.3 Coverage density . 11
5.7.4 Application of the armour . 12
5.8 Outer sheath . 12
5.8.1 Material . 12
5.8.2 Application . 12
5.8.3 Thickness of the sheath . 12
5.8.4 Colour of the outer sheath . 12
6 Construction for special applications. 13
6.1 Fire resistant cables. 13
6.2 Cables for installation in areas with explosive atmospheres . 13
6.3 Cables for installation between areas with and without explosive
atmospheres . 13
6.4 Cables with special metallic identification element . 13
7 Test methods and requirements . 13

7.1 General requirements . 13
7.2 Additional tests on cables with functional integrity during fire . 17
7.3 Tests on cables for installation in explosive atmospheres . 17
7.4 Tests on cables for installation between areas with and without explosive
atmospheres . 17
7.5 Tests on cables with special metallic identification element . 17
8 Recommendations for the installation of fibre optic cables on board of ships and
offshore units. 17
Annex A (informative) Recommendations for the installation of fibre optic cables on

board of ships and offshore units . 18
Bibliography . 19

Table 1 – Multimode fibre maximum cable attenuation coefficient (dB/km) . 10
Table 2 – Single-mode fibre maximum cable attenuation coefficient (dB/km) . 10
Table 3 – Colour of outer sheath . 13
Table 4 – Tests applicable to all cables . 14
Table 5 – Additional test required for low smoke cables . 16
Table 6 – Additional tests required for specific performances . 16
Table 7 – Additional test required for fire resistant cables . 17
Table 8 – Additional test for cables for installation between areas with and without
explosive atmospheres . 17
Table 9 – Additional test on cables with special metallic identification element . 17

– 4 – IEC 60092-378:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 378: Optical fibre cables

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may
...