IEC 60092-350:2020

IEC 60092-350 ®
Edition 5.0 2020-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical installations in ships –
Part 350: General construction and test methods of power, control
and instrumentation cables for shipboard and offshore applications

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IEC 60092-350 ®
Edition 5.0 2020-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical installations in ships –

Part 350: General construction and test methods of power, control

and instrumentation cables for shipboard and offshore applications

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.20; 47.020.60 ISBN 978-2-8322-7819-2

– 2 – IEC 60092-350:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
3.31 tests . 15
4 Constructional requirements . 16
4.1 General requirements . 16
4.1.1 General . 16
4.1.2 Voltage designation . 16
4.1.3 Cable marking . 16
4.1.4 Core identification . 17
4.1.5 Halogen-free cables. 18
4.2 Conductors . 18
4.2.1 Material . 18
4.2.2 Metal coating and separator . 18
4.2.3 Class and form . 18
4.2.4 Resistance . 19
4.3 Insulation system . 19
4.3.1 Material . 19
4.3.2 Application . 19
4.3.3 Insulation thickness . 19
4.4 Screens . 20
4.4.1 Conductor and insulation screens for high-voltage cables . 20
4.4.2 Screens (shields) for low voltage cables . 20
4.5 Cabling . 21
4.5.1 Multi-core cables . 21
4.5.2 Multi-unit cables . 21
4.6 Inner coverings, fillers and binders . 21
4.7 Inner sheath . 21
4.7.1 Material . 21
4.7.2 Application . 21
4.7.3 Thickness of inner sheath . 22
4.8 Metal braid armour . 22
4.8.1 Material . 22
4.8.2 Application . 22
4.9 Outer sheath . 23
4.9.1 Material . 23
4.9.2 Application . 23
4.9.3 Thickness of outer sheath . 23
4.9.4 Calculation of lower and upper limits for the outer dimensions of cables . 23
5 Test methods . 23
5.1 Test conditions . 23
5.1.1 Ambient temperature . 23
5.1.2 Frequency, waveform and magnitude of power-frequency test voltages . 23
5.2 Routine tests. 23
5.2.1 General . 23

5.2.2 Measurement of the electrical resistance of the conductors . 24
5.2.3 Voltage test . 24
5.2.4 Partial discharge test . 26
6 Sample tests . 26
6.1 General . 26
6.2 Frequency of sample tests . 26
6.3 Repetition of tests . 27
6.4 Conductor examination . 27
6.5 Measurement of thickness of insulation . 27
6.5.1 General . 27
6.5.2 Procedure . 27
6.5.3 Requirements . 27
6.6 Measurements of thickness of non-metallic sheaths . 28
6.6.1 General . 28
6.6.2 Procedure . 28
6.6.3 Requirements . 28
6.7 Measurement of external diameter . 28
6.8 Hot-set test for insulations and sheaths . 28
6.8.1 General procedure . 28
6.8.2 Requirements . 28
6.9 Insulation resistance test (volume resistivity determination) . 28
7 Type tests, electrical. 29
7.1 General . 29
7.2 Insulation resistance measurement . 29
7.2.1 Measurement at ambient temperature . 29
7.2.2 Measurement at maximum rated temperature . 30
7.3 Increase in AC capacitance after immersion in water . 30
7.3.1 General . 30
7.3.2 Preparation of test specimens. 30
7.3.3 Apparatus . 30
7.3.4 Procedure . 31
7.3.5 Requirements . 31
7.4 High-voltage test for 4 h for cables rated up to 1,8/3 kV . 31
7.4.1 General . 31
7.4.2 Requirement . 31
7.5 Mutual capacitance (control and instrumentation cables only) . 31
7.6 Inductance to resistance ratio (control and instrumentation cables only) . 31
7.7 High voltage sequence test (cables having a voltage rating higher than
3,6/6 (7,2) kV) . 32
7.7.1 General . 32
7.7.2 Special provisions . 32
7.7.3 Partial discharge test . 32
7.7.4 Bending test . 32
7.7.5 Tan δ measurement as a function of the voltage . 33
7.7.6 Tan δ measurement as a function of the temperature . 33
7.7.7 Heating cycle test plus partial discharge test . 33
7.7.8 Impulse withstand test, followed by a power-frequency voltage test . 33
7.7.9 High-voltage test for 4 h . 34
8 Type tests (non-electrical) . 34

– 4 – IEC 60092-350:2020 RLV © IEC 2020
8.1 General . 34
8.2 Measurement of thickness of insulation . 34
8.3 Measurement of thickness of non-metallic sheaths (excluding inner
coverings) . 34
8.4 Tests for determining the mechanical properties of insulation before and

after ageing . 34
8.4.1 Sampling . 34
8.4.2 Ageing treatments . 34
8.4.3 Conditioning and mechanical tests . 34
8.4.4 Requirements . 35
8.5 Tests for determining the mechanical properties of sheaths before and after

ageing. 35
8.5.1 Sampling . 35
8.5.2 Ageing treatments . 35
8.5.3 Conditioning and mechanical tests . 35
8.5.4 Requirements . 35
8.6 Additional ageing test on pieces of completed cables (compatibility test) . 35
8.6.1 General . 35
8.6.2 Sampling . 35
8.6.3 Ageing treatment . 35
8.6.4 Mechanical tests . 35
8.6.5 Requirements . 36
8.7 Loss of mass test on PVC ST 2 sheath . 36
8.7.1 Procedure . 36
8.7.2 Requirements . 36
8.8 Test for the behaviour of PVC ST 2 and halogen-free SHF 1 sheaths at high
temperature (hot pressure test) . 36
8.8.1 Procedure . 36
8.8.2 Requirements . 36
8.9 Test for the behaviour of PVC sheath ST 2 and halogen-free SHF 1 and
SHF 2 sheaths at low temperature . 36
8.9.1 Procedure . 36
8.9.2 Requirements . 36
8.10 Special test for low temperature behaviour (when required) . 36
8.11 Test of the metal coating of copper wires . 36
8.12 Galvanizing test . 37
8.13 Test for resistance of PVC ST 2 and halogen-free SHF 1 sheaths to cracking
(heat shock test) . 37
8.13.1 Procedure . 37
8.13.2 Requirements . 37
8.14 Ozone resistance test for insulation and for sheaths . 37
8.14.1 Procedure . 37
8.14.2 Requirements . 37
8.15 Hot oil immersion test and enhanced hot oil immersion test for sheaths . 37
8.15.1 Hot oil immersion test . 37
8.15.2 Enhanced hot oil immersion test (when required) . 37
8.16 Mud drilling fluid test (when required) . 37
8.17 Fire tests . 37
8.17.1 Flame-spread test on single cables . 37
8.17.2 Flame-spread test on bunched cables. 38

8.17.3 Smoke emission test . 38
8.17.4 Acid gas emission test . 38
8.17.5 pH and conductivity test. 38
8.17.6 Fluorine content test . 38
8.17.7 Fire-resistance test (test for circuit integrity cables) . 39
8.18 Determination of hardness for HEPR. 39
8.19 Determination of elastic modulus for HEPR . 39
8.20 Durability of print . 39
Annex A (normative) Fictitious calculation method for determination of dimensions of
protective coverings . 40
A.1 Overview. 40
A.2 General . 40
A.3 Method . 40
A.3.1 Conductors . 40
A.3.2 Cores . 41
A.3.3 Diameter over laid-up cores . 42
A.3.4 Inner coverings . 44
A.3.5 Sheath . 44
A.3.6 Braid armour . 45
Annex B (informative) Recommended minimum spark test voltage levels
(according to IEC 62230) . 46
B.1 General . 46
B.2 Test voltages . 46
B.2.1 General . 46
B.2.2 Contact electrodes . 46
B.2.3 Non-contact electrodes . 47
Annex C (normative) Rounding of numbers . 48
C.1 Rounding of numbers for the purpose of the fictitious calculation method . 48
C.1.1 Rules . 48
C.1.2 Illustrations . 48
C.2 Rounding of numbers for other purposes . 48
Annex D (normative) Calculation of the lower and upper limits for the outer
dimensions of cables with circular copper conductors . 49
D.1 General . 49
D.2 Lower limit for the outer diameter . 49
D.3 Upper limit for the outer diameter . 49
D.4 Thickness of the mandatory or optional coverings other than the insulation
and the sheath(s) . 50
Annex E (normative) Cold bend test and impact test for low temperature behaviour . 52
E.1 Cold bend test at any specified low temperature . 52
E.1.1 Method no. 1 . 52
E.1.2 Method no. 2 . 52
E.1.3 Examination and requirements . 53
E.2 Impact test at any specified low temperature . 53
E.2.1 Apparatus . 53
E.2.2 Procedures . 53
E.2.3 Requirements . 53
Bibliography . 54

– 6 – IEC 60092-350:2020 RLV © IEC 2020
Table 1 – Minimum size of conductors . 18
Table 2 – Routine test voltage . 25
Table 3 – Number of samples according to cable length . 27
Table 4 – Tan δ versus voltage . 33
Table 5 – Tan δ versus temperature . 33
Table 6 – Impulse withstand voltages . 34
Table 7 – Test methods and requirements for halogen-free components . 39
Table A.1 – Fictitious diameter of conductor . 41
Table A.2 – Increase of diameter for concentric conductors and metallic screens made
of tape or wire . 41
Table A.3 – Assembly coefficient k for laid-up . 43
Table A.4 – Coefficient c . 44
f
Table B.1 – Recommended minimum spark-test voltages for cables having rated
voltage (U ) between 150 V and 1 800 V . 46
Table D.1 – Lower and upper limits of circular copper conductors for cables for fixed
installations . 51
Table E.1 – Details of low temperature bending test . 52

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 350: General construction and test methods of power, control
and instrumentation cables for shipboard and offshore applications

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
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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
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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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 8 – IEC 60092-350:2020 RLV © IEC 2020
International Standard IEC 60092-350 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.
This fifth edition cancels and replaces the fourth edition published in 2014 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) more detailed description of the test procedures in 7.7.6 and 7.7.7;
b) description of the relationship between Annex A and Annex D.
The text of this International Standard is based on the following documents:
CDV Report on voting
18A/420/FDIS 18A/423/RVC
Full information on the voting for the approval of this document can be found in the report on
voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The list of all the parts of the IEC 60092 series, 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 "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 350: General construction and test methods of power, control
and instrumentation cables for shipboard and offshore applications

1 Scope
This part of IEC 60092 provides the general constructional requirements and test methods for
use in the manufacture of electric power, control and instrumentation cables with copper
conductors intended for fixed electrical systems at voltages up to and including 18/30(36) kV
on board ships and offshore (mobile and fixed) units.
The reference to fixed systems includes those that are subjected to vibration (due to the
movement of the ship or installation) or movement (due to motion of the ship or installation)
and not to those that are intended for frequent flexing. Cables suitable for frequent or
continual flexing use are detailed in other IEC standards, for example IEC 60227 (all parts)
and IEC 60245 (all parts), and their uses are restricted to those situations which do not
directly involve exposure to a marine environment, for example, portable tools and domestic
appliances.
The following types of cables are not included:
– optical fibre;
– sub-sea and umbilical cables;
– data and communication cables;
– coaxial cables.
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 60050-461, International Electrotechnical Vocabulary – Part 461: Electric cables
(available at www.electropedia.org)
IEC 60092-353, Electrical installations in ships – Part 353: Power cables for rated voltages
1 kV and 3 kV
IEC 60092-360:2014, Electrical installations in ships – Part 360: Insulating and sheathing
materials for shipboard and offshore units, power, control, instrumentation, and
telecommunication and data cables
IEC 60228, Conductors of insulated cables
IEC 60230, Impulse tests on cables and their accessories
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

– 10 – IEC 60092-350:2020 RLV © IEC 2020
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 60331-11, Tests for electric cables under fire conditions – Circuit integrity – Part 11:
Apparatus – Fire alone at a flame temperature of at least 750 °C
IEC 60331-21, Tests for electric cables under fire conditions – Circuit integrity – Part 21:
Procedures and requirements – Cables of rated voltage up to and including 0,6/1,0 kV
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 60332-3-22, Tests on electric and optical fibre cables under fire conditions – Part 3-22:
Test for vertical flame spread of vertically-mounted bunched wires or cables – Category A
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 60811-201, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 201: General tests – Measurement of insulation thickness
IEC 60811-202, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 202: General tests – Measurement of thickness of non-metallic sheath
IEC 60811-203, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 203: General tests – Measurement of overall dimensions
IEC 60811-401, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 401: Miscellaneous tests – Thermal ageing methods – Ageing in an air oven
IEC 60811-403, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 403: Miscellaneous tests – Ozone resistance test on cross-linked compounds
IEC 60811-404, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 404: Miscellaneous tests – Mineral oil immersion tests for sheaths
IEC 60811-409, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 409: Miscellaneous tests – Loss of mass test for thermoplastic insulations and sheaths
IEC 60811-501, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 501: Mechanical tests – Tests for determining the mechanical properties of insulating and
sheathing compounds
IEC 60811-504, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 505: Mechanical tests – Bending tests at low temperature for insulations and sheaths
IEC 60811-505, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 505: Mechanical tests – Elongation at low temperature for insulations and sheaths

IEC 60811-506, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 505: Mechanical tests – Impact test at low temperature for insulations and sheaths
IEC 60811-507, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 507: Mechanical tests – Hot set test for cross-linked materials
IEC 60811-508, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 508: Mechanical tests – Pressure test at high temperature for insulation and sheaths
IEC 60811-509, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 509: Mechanical tests – Test for resistance of insulations and sheaths to cracking (heat
shock test)
IEC 60885-2, Electrical test methods for electric cables. Part 2: partial discharge tests
IEC 60885-3, Electrical test methods for electric cables – Part 3: Test methods for partial
discharge measurements on lengths of extruded power cables
IEC 61034-1, Measurement of smoke density of cables burning under defined conditions –
Part 1: Test apparatus
IEC 61034-2, Measurement of smoke density of cables burning under defined conditions –
Part 2: Test procedure and requirements
ISO 7989-2:2007, Steel wire and wire products – Non-ferrous metallic coatings on steel wire –
Part 2: Zinc or zinc-alloy coating
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-461 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
approximate value
value which is neither guaranteed nor checked
Note 1 to entry: It is used, for example, for the calculation of other dimensional values.
3.2
braid
covering formed from braided metallic or non-metallic material
[SOURCE: IEC 60050-461:2008, 461-05-10, modified ("plaited" replaced by "braided")]
3.3
braid armour
covering formed from braided metal wires used to protect a cable from external mechanical
effects
Note 1 to entry: Where the rules of the applicable national, regulatory or approval body permit the practice, it is
also possible to use the braid armour as an earth conductor.

– 12 – IEC 60092-350:2020 RLV © IEC 2020
Note 2 to entry: Copper-wire braid armour may also provide a limited function of an electrostatic collective
screen, provided it is effectively earthed.
3.4
compatibility test
test intended to check that the insulation and sheath are not liable to deteriorate in operation
due to contact either with each other or with other components in the cable
3.5
conductor
part of a cable which has the specific function of carrying current
[SOURCE: IEC 60050-461:2008, 461-01-01]
3.6
conductor screen
non-metallic conducting layer applied between the conductor and insulation to equalise the
electrical stress between these components
Note 1 to entry: It may also provide smooth surfaces at the boundaries of the insulation and assist in the
elimination of spaces at these boundaries
3.7
core-insulated conductor, US
assembly comprising a conductor and its own insulation (and screens, if any)
Note 1 to entry: In North American usage, the core of a cable has been defined as the assembly of components of
a cable lying under a common covering such as the sheath (jacket).
3.8
drain wire
un-insulated wire laid in contact with an electrical screen or an electrical shield which has the
specific function of earthing an electrostatic screen by ensuring a low resistive path
throughout the length of the cable
[SOURCE: IEC 60050-461:2008, 461-03-07, modified (addition of text from "… which has
…")]
3.9
electrostatic screen
electrostatic shield, US
earthed metallic layer surrounding a cable which confines the electric field generated by the
cable within the cable cores, pair(s), triples(s) or quad(s), and/or protects the core(s), pair(s),
triple(s) or quad(s) from external influence
Note 1 to entry: Metallic sheaths, foils, braids, armours and earthed concentric conductors may also serve as an
electrostatic screen, provided they are effectively grounded or earthed.
3.10
fictitious value
value calculated according to the "fictitious method" described in Annex A
[SOURCE: IEC 60502-2:2005, definition 3.1.4]
3.11
filler
material used to fill the interstices between the cores of a multi-conductor cable
[SOURCE: IEC 60050-461:2008, 461-04-05]

3.12
fire resistance
circuit integrity
ability of an electric cable to continue to operate in the a designated manner whilst subjected
to a specified flame source for a specified period of time under specified conditions
[SOURCE: IEC 60331-11:2009, definition 3.1, modified (addition of "fire res
...

IEC 60092-350 ®
Edition 5.0 2020-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical installations in ships –
Part 350: General construction and test methods of power, control and
instrumentation cables for shipboard and offshore applications

Installations électriques à bord des navires –
Partie 350: Construction générale et méthodes d'essai des câbles d'énergie,
de commande et d'instrumentation des navires et des unités mobiles et fixes
en mer
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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.

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IEC 60092-350 ®
Edition 5.0 2020-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical installations in ships –

Part 350: General construction and test methods of power, control and

instrumentation cables for shipboard and offshore applications

Installations électriques à bord des navires –

Partie 350: Construction générale et méthodes d'essai des câbles d'énergie,

de commande et d'instrumentation des navires et des unités mobiles et fixes

en mer
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.20; 47.020.60 ISBN 978-2-8322-8152-9

– 2 – IEC 60092-350:2020 © IEC 2020
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
3.31 tests . 15
4 Constructional requirements . 16
4.1 General requirements . 16
4.1.1 General . 16
4.1.2 Voltage designation . 16
4.1.3 Cable marking . 16
4.1.4 Core identification . 17
4.1.5 Halogen-free cables. 17
4.2 Conductors . 17
4.2.1 Material . 17
4.2.2 Metal coating and separator . 17
4.2.3 Class and form . 18
4.2.4 Resistance . 18
4.3 Insulation system . 19
4.3.1 Material . 19
4.3.2 Application . 19
4.3.3 Insulation thickness . 19
4.4 Screens . 19
4.4.1 Conductor and insulation screens for high-voltage cables . 19
4.4.2 Screens (shields) for low voltage cables . 20
4.5 Cabling . 20
4.5.1 Multi-core cables . 20
4.5.2 Multi-unit cables . 20
4.6 Inner coverings, fillers and binders . 21
4.7 Inner sheath . 21
4.7.1 Material . 21
4.7.2 Application . 21
4.7.3 Thickness of inner sheath . 21
4.8 Metal braid armour . 21
4.8.1 Material . 21
4.8.2 Application . 22
4.9 Outer sheath . 22
4.9.1 Material . 22
4.9.2 Application . 22
4.9.3 Thickness of outer sheath . 22
4.9.4 Calculation of lower and upper limits for the outer dimensions of cables . 23
5 Test methods . 23
5.1 Test conditions . 23
5.1.1 Ambient temperature . 23
5.1.2 Frequency, waveform and magnitude of power-frequency test voltages . 23
5.2 Routine tests. 23
5.2.1 General . 23

5.2.2 Measurement of the electrical resistance of the conductors . 23
5.2.3 Voltage test . 24
5.2.4 Partial discharge test . 25
6 Sample tests . 26
6.1 General . 26
6.2 Frequency of sample tests . 26
6.3 Repetition of tests . 26
6.4 Conductor examination . 26
6.5 Measurement of thickness of insulation . 27
6.5.1 General . 27
6.5.2 Procedure . 27
6.5.3 Requirements . 27
6.6 Measurements of thickness of non-metallic sheaths . 27
6.6.1 General . 27
6.6.2 Procedure . 27
6.6.3 Requirements . 27
6.7 Measurement of external diameter . 27
6.8 Hot-set test for insulations and sheaths . 27
6.8.1 General procedure . 27
6.8.2 Requirements . 28
6.9 Insulation resistance test (volume resistivity determination) . 28
7 Type tests, electrical. 29
7.1 General . 29
7.2 Insulation resistance measurement . 29
7.2.1 Measurement at ambient temperature . 29
7.2.2 Measurement at maximum rated temperature . 29
7.3 Increase in AC capacitance after immersion in water . 30
7.3.1 General . 30
7.3.2 Preparation of test specimens. 30
7.3.3 Apparatus . 30
7.3.4 Procedure . 30
7.3.5 Requirements . 30
7.4 High-voltage test for 4 h for cables rated up to 1,8/3 kV . 31
7.4.1 General . 31
7.4.2 Requirement . 31
7.5 Mutual capacitance (control and instrumentation cables only) . 31
7.6 Inductance to resistance ratio (control and instrumentation cables only) . 31
7.7 High voltage sequence test (cables having a voltage rating higher than
3,6/6 (7,2) kV) . 31
7.7.1 General . 31
7.7.2 Special provisions . 31
7.7.3 Partial discharge test . 32
7.7.4 Bending test . 32
7.7.5 Tan δ measurement as a function of the voltage . 32
7.7.6 Tan δ measurement as a function of the temperature . 32
7.7.7 Heating cycle test plus partial discharge test . 33
7.7.8 Impulse withstand test, followed by a power-frequency voltage test . 33
7.7.9 High-voltage test for 4 h . 33
8 Type tests (non-electrical) . 33

– 4 – IEC 60092-350:2020 © IEC 2020
8.1 General . 33
8.2 Measurement of thickness of insulation . 34
8.3 Measurement of thickness of non-metallic sheaths (excluding inner
coverings) . 34
8.4 Tests for determining the mechanical properties of insulation before and

after ageing . 34
8.4.1 Sampling . 34
8.4.2 Ageing treatments . 34
8.4.3 Conditioning and mechanical tests . 34
8.4.4 Requirements . 34
8.5 Tests for determining the mechanical properties of sheaths before and after

ageing. 34
8.5.1 Sampling . 34
8.5.2 Ageing treatments . 34
8.5.3 Conditioning and mechanical tests . 34
8.5.4 Requirements . 34
8.6 Additional ageing test on pieces of completed cables (compatibility test) . 35
8.6.1 General . 35
8.6.2 Sampling . 35
8.6.3 Ageing treatment . 35
8.6.4 Mechanical tests . 35
8.6.5 Requirements . 35
8.7 Loss of mass test on PVC ST 2 sheath . 35
8.7.1 Procedure . 35
8.7.2 Requirements . 35
8.8 Test for the behaviour of PVC ST 2 and halogen-free SHF 1 sheaths at high
temperature (hot pressure test) . 35
8.8.1 Procedure . 35
8.8.2 Requirements . 35
8.9 Test for the behaviour of PVC sheath ST 2 and halogen-free SHF 1 and
SHF 2 sheaths at low temperature . 36
8.9.1 Procedure . 36
8.9.2 Requirements . 36
8.10 Special test for low temperature behaviour (when required) . 36
8.11 Test of the metal coating of copper wires . 36
8.12 Galvanizing test . 36
8.13 Test for resistance of PVC ST 2 and halogen-free SHF 1 sheaths to cracking
(heat shock test) . 36
8.13.1 Procedure . 36
8.13.2 Requirements . 36
8.14 Ozone resistance test for insulation and for sheaths . 36
8.14.1 Procedure . 36
8.14.2 Requirements . 36
8.15 Hot oil immersion test and enhanced hot oil immersion test for sheaths . 37
8.15.1 Hot oil immersion test . 37
8.15.2 Enhanced hot oil immersion test (when required) . 37
8.16 Mud drilling fluid test (when required) . 37
8.17 Fire tests . 37
8.17.1 Flame-spread test on single cables . 37
8.17.2 Flame-spread test on bunched cables. 37

8.17.3 Smoke emission test . 37
8.17.4 Acid gas emission test . 37
8.17.5 pH and conductivity test. 37
8.17.6 Fluorine content test . 38
8.17.7 Fire-resistance test (test for circuit integrity cables) . 38
8.18 Determination of hardness for HEPR. 38
8.19 Determination of elastic modulus for HEPR . 38
8.20 Durability of print . 38
Annex A (normative) Fictitious calculation method for determination of dimensions of
protective coverings . 39
A.1 Overview. 39
A.2 General . 39
A.3 Method . 39
A.3.1 Conductors . 39
A.3.2 Cores . 40
A.3.3 Diameter over laid-up cores . 42
A.3.4 Inner coverings . 44
A.3.5 Sheath . 44
A.3.6 Braid armour . 44
Annex B (informative) Recommended minimum spark test voltage levels
(according to IEC 62230) . 45
B.1 General . 45
B.2 Test voltages . 45
B.2.1 General . 45
B.2.2 Contact electrodes . 45
B.2.3 Non-contact electrodes . 46
Annex C (normative) Rounding of numbers . 47
C.1 Rounding of numbers for the purpose of the fictitious calculation method . 47
C.1.1 Rules . 47
C.1.2 Illustrations . 47
C.2 Rounding of numbers for other purposes . 47
Annex D (normative) Calculation of the lower and upper limits for the outer
dimensions of cables with circular copper conductors . 48
D.1 General . 48
D.2 Lower limit for the outer diameter . 48
D.3 Upper limit for the outer diameter . 48
D.4 Thickness of the mandatory or optional coverings other than the insulation
and the sheath(s) . 49
Annex E (normative) Cold bend test and impact test for low temperature behaviour . 50
E.1 Cold bend test at any specified low temperature . 50
E.1.1 Method no. 1 . 50
E.1.2 Method no. 2 . 50
E.1.3 Examination and requirements . 51
E.2 Impact test at any specified low temperature . 51
E.2.1 Apparatus . 51
E.2.2 Procedures . 51
E.2.3 Requirements . 51
Bibliography . 52

– 6 – IEC 60092-350:2020 © IEC 2020
Table 1 – Minimum size of conductors . 18
Table 2 – Routine test voltage . 25
Table 3 – Number of samples according to cable length . 26
Table 4 – Tan δ versus voltage . 32
Table 5 – Tan δ versus temperature . 33
Table 6 – Impulse withstand voltages . 33
Table 7 – Test methods and requirements for halogen-free components . 38
Table A.1 – Fictitious diameter of conductor . 40
Table A.2 – Increase of diameter for concentric conductors and metallic screens made
of tape or wire . 40
Table A.3 – Assembly coefficient k for laid-up . 42
Table A.4 – Coefficient c . 43
f
Table B.1 – Recommended minimum spark-test voltages for cables having rated
voltage (U ) between 150 V and 1 800 V . 45
Table D.1 – Lower and upper limits of circular copper conductors for cables for fixed
installations . 49
Table E.1 – Details of low temperature bending test . 50

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 350: General construction and test methods of power, control
and instrumentation cables for shipboard and offshore applications

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,
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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) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60092-350 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.
This fifth edition cancels and replaces the fourth edition published in 2014 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) more detailed description of the test procedures in 7.7.6 and 7.7.7;
b) description of the relationship between Annex A and Annex D.

– 8 – IEC 60092-350:2020 © IEC 2020
The text of this International Standard is based on the following documents:
CDV Report on voting
18A/420/CDV 18A/423/RVC
Full information on the voting for the approval of this document can be found in the report on
voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The list of all the parts of the IEC 60092 series, 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 "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 350: General construction and test methods of power, control
and instrumentation cables for shipboard and offshore applications

1 Scope
This part of IEC 60092 provides the general constructional requirements and test methods for
use in the manufacture of electric power, control and instrumentation cables with copper
conductors intended for fixed electrical systems at voltages up to and including 18/30(36) kV
on board ships and offshore (mobile and fixed) units.
The reference to fixed systems includes those that are subjected to vibration (due to the
movement of the ship or installation) or movement (due to motion of the ship or installation)
and not to those that are intended for frequent flexing. Cables suitable for frequent or
continual flexing use are detailed in other IEC standards, for example IEC 60227 (all parts)
and IEC 60245 (all parts), and their uses are restricted to those situations which do not
directly involve exposure to a marine environment, for example, portable tools and domestic
appliances.
The following types of cables are not included:
– optical fibre;
– sub-sea and umbilical cables;
– data and communication cables;
– coaxial cables.
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 60050-461, International Electrotechnical Vocabulary – Part 461: Electric cables
(available at www.electropedia.org)
IEC 60092-360:2014, Electrical installations in ships – Part 360: Insulating and sheathing
materials for shipboard and offshore units, power, control, instrumentation and
telecommunication cables
IEC 60228, Conductors of insulated cables
IEC 60230, Impulse tests on cables and their accessories
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

– 10 – IEC 60092-350:2020 © IEC 2020
IEC 60331-11, Tests for electric cables under fire conditions – Circuit integrity – Part 11:
Apparatus – Fire alone at a flame temperature of at least 750 °C
IEC 60331-21, Tests for electric cables under fire conditions – Circuit integrity – Part 21:
Procedures and requirements – Cables of rated voltage up to and including 0,6/1,0 kV
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 60332-3-22, Tests on electric and optical fibre cables under fire conditions – Part 3-22:
Test for vertical flame spread of vertically-mounted bunched wires or cables – Category A
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 60811-201, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 201: General tests – Measurement of insulation thickness
IEC 60811-202, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 202: General tests – Measurement of thickness of non-metallic sheath
IEC 60811-203, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 203: General tests – Measurement of overall dimensions
IEC 60811-401, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 401: Miscellaneous tests – Thermal ageing methods – Ageing in an air oven
IEC 60811-403, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 403: Miscellaneous tests – Ozone resistance test on cross-linked compounds
IEC 60811-404, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 404: Miscellaneous tests – Mineral oil immersion tests for sheaths
IEC 60811-409, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 409: Miscellaneous tests – Loss of mass test for thermoplastic insulations and sheaths
IEC 60811-501, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 501: Mechanical tests – Tests for determining the mechanical properties of insulating and
sheathing compounds
IEC 60811-504, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 505: Mechanical tests – Bending tests at low temperature for insulations and sheaths
IEC 60811-505, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 505: Mechanical tests – Elongation at low temperature for insulations and sheaths
IEC 60811-506, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 505: Mechanical tests – Impact test at low temperature for insulations and sheaths

IEC 60811-507, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 507: Mechanical tests – Hot set test for cross-linked materials
IEC 60811-508, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 508: Mechanical tests – Pressure test at high temperature for insulation and sheaths
IEC 60811-509, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 509: Mechanical tests – Test for resistance of insulations and sheaths to cracking (heat
shock test)
IEC 60885-3, Electrical test methods for electric cables – Part 3: Test methods for partial
discharge measurements on lengths of extruded power cables
IEC 61034-1, Measurement of smoke density of cables burning under defined conditions –
Part 1: Test apparatus
IEC 61034-2, Measurement of smoke density of cables burning under defined conditions –
Part 2: Test procedure and requirements
ISO 7989-2:2007, Steel wire and wire products – Non-ferrous metallic coatings on steel wire –
Part 2: Zinc or zinc-alloy coating
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-461 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
approximate value
value which is neither guaranteed nor checked
Note 1 to entry: It is used, for example, for the calculation of other dimensional values.
3.2
braid
covering formed from braided metallic or non-metallic material
[SOURCE: IEC 60050-461:2008, 461-05-10]
3.3
braid armour
covering formed from braided metal wires used to protect a cable from external mechanical
effects
Note 1 to entry: Where the rules of the applicable national, regulatory or approval body permit the practice, it is
also possible to use the braid armour as an earth conductor.
Note 2 to entry: Copper-wire braid armour may also provide a limited function of an electrostatic collective
screen, provided it is effectively earthed.

– 12 – IEC 60092-350:2020 © IEC 2020
3.4
compatibility test
test intended to check that the insulation and sheath are not liable to deteriorate in operation
due to contact either with each other or with other components in the cable
3.5
conductor
part of a cable which has the specific function of carrying current
[SOURCE: IEC 6
...