IEC 60092-379:2024

Electrical installations in ships - Part 379: Symmetrical category cables with transmission characteristics up to 1 000 MHz

IEC 60092-379:2024 is applicable to shipboard and offshore units Ethernet (category) cables with extruded solid or foamed insulation, intended for fixed installations. Cables designed to maintain functional integrity during fire as specified in 6.1 and to be installed in explosive atmospheres as specified in 6.2 are included. The various types of Ethernet (category) cables are given in Clause 4. 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: 23-Jul-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 4 - TC 18/SC 18A/JWG 4
• Current Stage: PPUB - Publication issued
• Start Date: 24-Jul-2024
• Completion Date: 23-Aug-2024

Overview

IEC 60092-379:2024 - "Electrical installations in ships - Part 379: Symmetrical category cables with transmission characteristics up to 1 000 MHz" specifies requirements for shipboard and offshore Ethernet (category) cables with extruded solid or foamed insulation intended for fixed installations. The standard covers cable types (Clause 4), construction requirements (Clause 5), special application constructions (Clause 6) and test methods and requirements (Clause 7). All cables described are halogen-free and the document aligns constructional requirements and test methods with IEC 60092-350 unless otherwise stated. Fire-resistant cables (6.1) and cables for explosive atmospheres (6.2) are explicitly included.

Key topics and technical requirements

• Scope and cable types: Defines symmetrical (balanced) Ethernet category cables with transmission characteristics up to 1 000 MHz for shipboard and offshore use (Clause 4).
• Construction requirements: Materials and layering (cores, insulation, inner sheath, armour, outer sheath), conductor types and cabling methods (Clause 5).
• Special applications: Requirements for fire resistant cables and for installation in or between explosive-atmosphere zones (Clause 6).
• Testing and conformity: Test methods and acceptance criteria are given (Clause 7), including additional tests for low-smoke, fire performance and explosive-atmosphere suitability. Test tables and requirements (e.g., insulation and functional integrity) are provided to demonstrate conformity.
• Marking and installation: Marking, core identification and installation guidance (Annex A) to ensure correct selection and safe installation on ships and offshore units.
• Alignment with other IEC standards: Construction and testing are harmonized with IEC 60092-350 and reference related documents for materials and installation practice.

Practical applications and users

Who uses IEC 60092-379:

• Shipbuilders, naval architects and offshore platform designers specifying on-board Ethernet cabling.
• Cable manufacturers designing and certifying category cables for marine and offshore service.
• Marine electrical engineers, integrators and installers selecting cables for fixed installations.
• Classification societies, procurement teams and certification bodies assessing compliance for safety and functionality.

Typical applications:

• Onboard Ethernet networks (data, control, instrumentation) requiring up to 1 000 MHz performance.
• Installations demanding halogen-free, low-smoke, fire-resistant or armoured cables - e.g., engine rooms, accommodation spaces, exposed decks and explosive-atmosphere zones.

Related standards

• IEC 60092-350 (construction & test methods for shipboard cables)
• IEC 60092-352 (choice and installation of cables)
• IEC 60092-360 (insulating & sheathing materials)
• IEC 60092-401 (installation & testing of completed installations)
• IEC 60079-14 (explosive atmospheres)
• IEC 60331 series (circuit integrity fire tests)

IEC 60092-379 is essential when specifying reliable, safety-compliant Ethernet cabling for marine and offshore environments where transmission performance, fire integrity and explosive-atmosphere suitability are required.

Standards Content (Sample)

IEC 60092-379 ®
Edition 1.0 2024-07
INTERNATIONAL
STANDARD
Electrical installations in ships –
Part 379: Symmetrical category cables with transmission characteristics up to
1 000 MHz
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IEC 60092-379 ®
Edition 1.0 2024-07
INTERNATIONAL
STANDARD
Electrical installations in ships –

Part 379: Symmetrical category cables with transmission characteristics up to

1 000 MHz
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.20; 47.020.60 ISBN 978-2-8322-9456-7

– 2 – IEC 60092-379:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 General requirements . 8
4.1 Temperature range of the cables . 8
4.2 Rated voltage . 8
4.3 Transmission (category) parameters . 8
4.3.1 General . 8
4.3.2 Categories . 9
4.4 Markings . 9
4.4.1 Indication of origin and core identification . 9
4.4.2 Continuity of marking . 9
5 Construction requirements . 9
5.1 Overview. 9
5.2 Unarmoured single or double-sheathed cable . 9
5.3 Armoured cables . 10
5.4 Copper conductors . 10
5.5 Insulation . 10
5.6 Core identification . 10
5.6.1 General . 10
5.6.2 Colours of cores . 10
5.7 Cabling . 10
5.8 Inner covering . 11
5.8.1 General . 11
5.8.2 Cables with helically applied steel wire armour . 11
5.9 Electrostatic screen . 11
5.10 Inner sheath . 11
5.10.1 General . 11
5.10.2 Material . 11
5.10.3 Application . 11
5.10.4 Thickness of inner sheath . 11
5.11 Armour . 11
5.11.1 General . 11
5.11.2 Braided armour . 12
5.11.3 Helically applied armour . 12
5.11.4 Application of the armour . 12
5.12 Outer sheath . 12
5.12.1 Material . 12
5.12.2 Application . 12
5.12.3 Thickness of the sheath . 12
5.12.4 Colour of 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

7 Tests – methods and requirements . 13
7.1 General . 13
7.2 Tests on cables for installation in explosive atmospheres . 16
7.3 Additional test on cables for installation between areas with and without
explosive atmospheres . 17
Annex A (informative) Installation of category cables on board of ships and offshore
units . 18
Bibliography . 19

Table 1 – Tests applicable to all cables . 13
Table 2 – Additional test required for low smoke cables . 15
Table 3 – Additional tests required for specific performances . 15
Table 4 – Additional test required for fire resistant cables . 16
Table 5 – Requirements for insulation and functional integrity of Ethernet (category)
cables . 16
Table 6 – Additional test for cables for installation between areas with and without
explosive atmospheres . 17

– 4 – IEC 60092-379:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 379: Symmetrical category cables with transmission
characteristics up to 1 000 MHz

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
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6) All users should ensure that they have the latest edition of this publication.
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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
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60092-379 has been prepared by subcommittee 18A: Electric cables for ships and mobile
and fixed offshore units, of IEC technical committee 18: Electrical installations of ships and of
mobile and fixed offshore units. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
18A/487/FDIS 18A/489/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 60092 series, published under the general title Electrical installations
in ships, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
– 6 – IEC 60092-379:2024 © IEC 2024
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 379: Symmetrical category cables with transmission
characteristics up to 1 000 MHz

1 Scope
This part of IEC 60092 is applicable to shipboard and offshore units Ethernet (category) cables
with extruded solid or foamed insulation, intended for fixed installations. Cables designed to
maintain functional integrity during fire as specified in 6.1 and to be installed in explosive
atmospheres as specified in 6.2 are included.
The various types of Ethernet (category) cables are given in Clause 4. The constructional
requirements and test methods are aligned with those indicated in IEC 60092-350, unless
otherwise specified in this document.
The object of this document is:
– to standardize cables whose safety and reliability is ensured when they are installed in
accordance with the requirements of IEC 60092-352 or IEC 60092-401;
– to allow solid conductor category cables against the recommendations of IEC 60092-352;
– to lay down standard manufacturing requirements and characteristics of such cables directly
or indirectly bearing on safety;
– to specify test methods for checking conformity with those requirements; and
– to add requirements and recommendations for the cable installation in accordance with
Annex A.
All cables described in this document are halogen-free.
Cables within this document can be installed in many different environments that would call for
extra protection where steel wire or tape armouring is required. Examples of areas, such as
outdoor, on the ship, where other moveable objects are within the same space, will require extra
protection. These areas of concern are found in extreme conditions, like offshore drilling and
oil platforms.
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.
IEC 60079-14:2013, Explosive atmospheres – Part 14: Electrical installations design, selection
and erection
IEC 60092-350:2020, Electrical installations in ships – Part 350: General construction and test
methods of power, control and instrumentation cables for shipboard and offshore applications
IEC 60092-352, Electrical installations in ships – Part 352: Choice and installation of electrical
cables
IEC 60092-360, Electrical installations in ships – Part 360: Insulating and sheathing materials
for shipboard and offshore units, power, control, instrumentation and telecommunication cables
IEC 60092-401, Electrical installations in ships – Part 401: Installation and test of completed
installation
IEC 60331-1, Tests for electric cables under fire conditions – Circuit integrity – Part 1: Test
method for fire with shock at a temperature of at least 830 °C for cables of rated voltage up to
and including 0,6/1,0 kV and with an overall diameter exceeding 20 mm
IEC 60331-2, Tests for electric cables under fire conditions – Circuit integrity – Part 2: Test
method for fire with shock at a temperature of at least 830 °C for cables of rated voltage up to
and including 0,6/1,0 kV and with an overall diameter not exceeding 20 mm
IEC 60331-23, Tests for electric cables under fire conditions – Circuit integrity – Part 23:
Procedures and requirements – Electric data cables
IEC 60332-3-24, Tests on electric and optical fibre cables under fire conditions – Part 3-24:
Test for vertical flame spread of vertically-mounted bunched wires or cables – Category C
IEC 60332-3-25, Tests on electric and optical fibre cables under fire conditions – Part 3-25:
Test for vertical flame spread of vertically-mounted bunched wires or cables – Category D
IEC 60332-1-2, Tests on electric and optical fibre cables under fire conditions – Part 1-2: Test
for vertical flame propagation for a single insulated wire or cable – Procedure for 1 kW
pre-mixed flame
IEC 60684-2, Flexible insulating sleeving – Part 2: Methods of test
IEC 60754-1, Test on gases evolved during combustion of materials from cables – Part 1:
Determination of the halogen acid gas content
IEC 60754-2, Test on gases evolved during combustion of materials from cables – Part 2:
Determination of acidity (by pH measurement) and conductivity
IEC 60811-506, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 506: Mechanical tests – Impact test at low temperature for insulations and sheaths
IEC 61034-2, Measurement of smoke density of cables burning under defined conditions –
Part 2: Test procedure and requirements
IEC 61156-1:2023, Multicore and symmetrical pair/quad cables for digital communications –
Part 1: Generic specification
IEC 61156-5:2020, Multicore and symmetrical pair/quad cables for digital communications –
Part 5: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz –
Horizontal floor wiring – Sectional specification
IEC 61156-6:2020, Multicore and symmetrical pair/quad cables for digital communications –
Part 6: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz – Work
area wiring – Sectional specification
ISO/IEC TS 29125, Information technology – Telecommunications cabling requirements for
remote powering of terminal equipment

– 8 – IEC 60092-379:2024 © IEC 2024
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60092-350 apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
4 General requirements
4.1 Temperature range of the cables
The category cables, specified in this document, are decided for an operating temperature
range from −25 °C up to +80 °C.
NOTE The specified temperature range is extended compared to the range specified in the IEC 61156 series.
Another temperature range can be agreed between manufacturer and customer. In this case
ensure that the temperature coefficient of the attenuation should be specified in order to provide
this information for network-planning purposes.
4.2 Rated voltage
The rated voltages for category cables are
• 30 V AC for cables with Ethernet data transmission only;
• 57 V AC for cables with Ethernet data transmission and additional Power over Ethernet
(PoE) characteristics.
All voltages are given as RMS values.
If cables are use
...