Electrical installations in ships - Part 353: Power cables for rated voltages 1 kV and 3 kV

IEC 60092-353:2016 is applicable to shipboard and offshore non radial field power cables with extruded solid insulation, having a voltage rating of 0,6/1 (1,2) kV or 1,8/3 (3,6) kV intended for fixed installations. Cables designed to maintain circuit integrity during fire are included. The various types of power cables are given in 5.1. 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 61892-4,
- to lay down standard manufacturing requirements and characteristics of such cables directly or indirectly bearing on safety, and
- to specify test methods for checking conformity with those requirements. This edition includes the following significant technical changes with respect to the previous edition:
- updated references to IEC 60092-350 for general construction and test methods and IEC 60092-360 for insulating and sheathing materials.

Installations électriques à bord des navires - Partie 353: Câbles d'énergie pour les tensions assignées 1 kV et 3 kV

L'IEC 60092-353:2016 est applicable aux câbles pour installations à bord des navires et en mer, à champ non radial, à isolement massif extrudé et avec une tension assignée de 0,6/1 (1,2) kV ou de 1,8/3 (3,6) kV destinés aux installations fixes. Les câbles conçus pour assurer l'intégrité des circuits au cours d'un incendie sont inclus. Les différents types de câbles d'énergie sont indiqués en 5.1. Leurs exigences de fabrication et leurs méthodes d'essai sont conformes à celles qui sont indiquées dans l'IEC 60092-350 sauf spécification contraire dans le présent document. L'objet du présent document est:
- de normaliser des câbles qui soient sûrs et fiables lorsqu'ils sont installés conformément aux exigences de l'IEC 60092-352 ou de l'IEC 61892-4,
- d'établir les caractéristiques pour de tels câbles et les exigences normalisées relatives à leur fabrication se référant directement ou indirectement à la sécurité, et
- de préciser les méthodes d'essai pour vérifier la conformité à ces exigences. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- mise à jour des références à l'IEC 60092-350 pour la construction générale et les méthodes d'essai et à l'IEC 60092-360 pour les matériaux d'isolation et de gainage.

General Information

Status
Published
Publication Date
18-Sep-2016
Current Stage
DELPUB - Deleted Publication
Start Date
06-Jun-2024
Completion Date
01-Dec-2022
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IEC 60092-353 ®
Edition 4.0 2016-09
REDLINE VERSION
INTERNATIONAL
STANDARD
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Electrical installations in ships –
Part 353: Power cables for rated voltages 1 kV and 3 kV

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IEC 60092-353 ®
Edition 4.0 2016-09
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical installations in ships –

Part 353: Power cables for rated voltages 1 kV and 3 kV

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.20; 47.020.60 ISBN 978-2-8322-3652-9

– 2 – IEC 60092-353:2016 RLV © IEC 2016

CONTENTS
FOREWORD . 4

1 Scope and object . 6

2 Normative references . 6

3 Terms and definitions. 8

4 General requirements . 8

4.1 Rated voltage . 8

4.2 Markings . 8

4.2.1 Indication of origin and voltage identification . 8
4.2.2 Continuity of marking . 8
4.2.3 Core identification . 9
5 Constructional requirements . 9
5.1 General description . 9
5.1.1 Overview . 9
5.1.2 Unarmoured cables (excluding 1,8/3 kV) . 9
5.1.3 Armoured cables . 9
5.2 Conductors . 10
5.3 Insulation . 10
5.3.1 Material . 10
5.3.2 Application . 11
5.3.3 Thickness of insulation . 11
5.4 Cabling (including fillers and binders) . 12
5.5 Inner covering . 12
5.5.1 General . 12
5.5.2 Thickness of inner covering . 12
5.6 Screen . 12
5.6.1 Construction . 12
5.6.2 Application . 13
5.7 Inner sheath . 13
5.7.1 Material . 13
5.7.2 Application . 13
5.7.3 Thickness of inner sheath . 13
5.8 Braid armour . 14

5.8.1 General . 14
5.8.2 Braid wire diameter . 14
5.8.3 Coverage density . 14
5.8.4 Application of the armour . 14
5.9 Outer sheath . 14
5.9.1 Material . 14
5.9.2 Application . 14
5.9.3 Thickness of outer sheath . 15
5.9.4 Colour of outer sheath. 15
6 Tests – Methods and requirements . 15
Annex A (informative) Alternative enhanced insulation thickness for 0,6/1 kV . 19
Annex B (informative) Identification of cores of multicore cables . 20
B.1 Inscription . 20

B.2 Arrangement of the marks . 20

B.3 Spacing and dimensions of the marks . 20

B.4 Appearance of inscription . 21

Bibliography . 22

Figure B.1 – Arrangement of the marks . 20

Table 1 – Insulation thickness . 11

Table 2 – Thickness of extruded inner covering and fictitious diameters . 12

Table 3 – Requirements of drain wire . 13
Table 4 – Tests applicable to all cables (1 of 2) . 16
Table 5 – Additional tests required for halogen-free cables . 17
Table 6 – Additional test required for low smoke cables . 18
Table 7 – Additional tests required for fire resistant cables . 18
Table 8 – Additional tests required for specific performances . 18
Table A.1 – Alternative enhanced insulation thickness for 0,6/1 kV . 19
Table B.1 – Dimensions of the marks . 21

– 4 – IEC 60092-353:2016 RLV © IEC 2016

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 353: Power cables for rated voltages 1 kV and 3 kV

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
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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) 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.

International Standard IEC 60092-353 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 fourth edition cancels and replaces the third edition published in 2011. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) updated references to IEC 60092-350 for general construction and test methods and

IEC 60092-360 for insulating and sheathing materials.
The text of this document is based on the following documents:
FDIS Report on voting
18A/399/FDIS 18A/400/RVD
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 publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A 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 publication will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication 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 publication using a colour printer.

– 6 – IEC 60092-353:2016 RLV © IEC 2016

ELECTRICAL INSTALLATIONS IN SHIPS –

Part 353: Power cables for rated voltages 1 kV and 3 kV

1 Scope and object
This part of IEC 60092 is applicable to shipboard and offshore non radial field power cables

with extruded solid insulation, having a voltage rating of 0,6/1 (1,2) kV and or 1,8/3 (3,6) kV
intended for fixed installations.
Cables for use in circuits requiring resistance to designed to maintain circuit integrity during fire
are included.
The various types of power cables are given in 5.1. The constructional requirements and test
methods shall comply 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 61892-4,
– to lay down standard manufacturing requirements and characteristics of such cables
directly or indirectly bearing on safety, and
– to specify test methods for checking conformity with those requirements.
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 60038:2009, IEC standard voltages
IEC 60050-461:2008, International Electrotechnical Vocabulary – Part 461: Electric cables

IEC 60092-350:2014, Electrical installations in ships – Part 350: General construction and test
methods of power, control and instrumentation cables for shipboard and offshore applications
IEC 60092-351, Electrical installations in ships – Part 351: Insulating materials for shipboard
and offshore units, power, control, instrumentation, telecommunication and data cables
IEC 60092-352, Electrical installations in ships – Part 352: Choice and installation of electrical
cables
IEC 60092-359, Electrical installations in ships – Part 359: Sheathing materials for shipboard
power and telecommunication 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 60228:2004, Conductors of insulated cables

IEC 60331-1:2009, 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 60331-2:2009, 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 60331-11:1999, Tests for electric cables under fire conditions – Circuit integrity – Part 11:

Apparatus – Fire alone at a flame temperature of at least 750 °C

Amendment 1 (2009)
IEC 60331-21:1999, 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 60332-1-2:2004, 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 60332-3-22:2000, Tests on electric cables and optical fibre cables under fire conditions –
Part 3-22: Test for vertical flame spread of vertically-mounted bunched wires or cables –
Category A
Amendment 1 (2008)
IEC 60445:2010, Basic and safety principles for man-machine interface, marking and
identification – Identification of equipment terminals, conductor terminations and conductors
IEC 60684-2:1997, Flexible insulating sleeving – Part 2: Methods of test
Amendment 1 (2003)
IEC 60754-1:1994, Test on gases evolved during combustion of materials from cables – Part 1:
Determination of the amount of halogen acid gas content
IEC 60754-2:1991, Test on gases evolved during combustion of electric materials from cables –
Part 2: Determination of degree of acidity of gases evolved during the combustion of materials
taken from electric cables by measuring pH acidity (by pH measurement) and conductivity
Amendment 1 (1997)
IEC 61034-1:2005, Measurement of smoke density of cables burning under defined conditions
– Part 1: Test apparatus
IEC 61034-2:2005, Measurement of smoke density of cables burning under defined conditions
– Part 2: Test procedure and requirements
IEC 61892-4, Mobile and fixed offshore units – Electrical installations – Part 4: Cables
___________
There exists a consolidated edition (1.1) which includes IEC 60331-11:1999 and its amendment 1.
There exists a consolidated edition (1.1) which includes IEC 60332-3-22:2000 and its amendment 1.
There exists a consolidated edition (2.1) which includes IEC 60684-2:1997 and its amendment 1 and its
corrigendum.
– 8 – IEC 60092-353:2016 RLV © IEC 2016

3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60092-350 and in

IEC 60050-461 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

4 General requirements
4.1 Rated voltage
The standard method of designating the rated voltages of cables covered by this document
shall take the following form:
U /U (U )
o m
where
U is the rated power-frequency voltage between phase conductor and earth or metallic
o
screen, for which the cable is designed;
U is the rated power-frequency voltage between phase conductors for which the cable is
designed;
U is the maximum value of the “highest system voltage” for which the equipment (including
m
cable) may be used (see IEC 60038).
All voltages are given as r.m.s. RMS values.
The standard rated voltages U /U (U ) of the cables considered in this document are the
o m
following:
U /U (U ) = 0,6/1 (1,2) kV and 1,8/3 (3,6) kV
o m
For 0,6/1 (1,2) kV cables, d.c. DC voltage up to a maximum of 1,5 times the a.c. AC voltage
may be used provided that the voltage to earth does not exceed 0,9 kV.

4.2 Markings
4.2.1 Indication of origin and voltage identification
Cables shall comply with IEC 60092-350:2014, 4.1.3, with respect to
a) indication of origin,
b) rated voltage and cable construction (number of cores and cross sectional area of the
construction),
c) continuity of marking, and
d) durability/legibility.
4.2.2 Continuity of marking
The marking is deemed to be continuous if the distance between the end of any marking and
the beginning of the next does not exceed

a) 550 mm if the marking is on the outer surface of the cable, and

b) 275 mm in all other cases.
4.2.3 Core identification
4.2.3.1 General
Cable cores shall be clearly identified by either colours or numbers.

4.2.3.2 Coloured cores
The core colours shall be in accordance with IEC 60445.

4.2.3.3 Numbered cores – Multicore cables
Identification shall be made by inscription of numbers on each core starting from the centre
beginning with 1 in accordance with Annex B.
5 Constructional requirements
5.1 General description
5.1.1 Overview
Shipboard and offshore cables for fixed installations shall be single or multicore cables
generally constructed as follows.
5.1.2 Unarmoured cables (excluding 1,8/3 kV)
a) Single-core unarmoured unsheathed cable
• copper conductor, see 5.2;
• insulation applied as a single layer of insulating compound of one of the types described
in 5.3 with an enhanced thickness equivalent to that of a combined insulation and outer
sheath for use in unarmoured cables installed in an adequately protected environment
(see 5.3.3 for the thickness).
b) Unarmoured single- or double-sheathed cable
• copper conductor, see 5.2;
• insulation, see 5.3;
• cabling (for multicore cables), see 5.4;

• inner covering (optional, but mandatory when a braided or a metal tape electrostatic
screening is applied over the core lay-up), see 5.5;
• electrostatic screening (optional), see 5.6;
• inner sheath (optional), see 5.7;
• outer sheath applied as either one or two layer systems, see 5.9.
5.1.3 Armoured cables
a) Armoured single-sheathed cable with outer sheath only
• copper conductor, see 5.2;
• insulation, see 5.3;
• cabling (for multicore cables), see 5.4;
• inner covering below electrostatic screening (optional, but mandatory when a braided or
a metal tape electrostatic screening is applied over the core lay-up), see 5.5;

– 10 – IEC 60092-353:2016 RLV © IEC 2016

• electrostatic screening (optional), see 5.6;

• inner covering (optional, but mandatory in case of a braid armour of galvanised steel
wires in which case the inner covering shall be extruded), see 5.5;

• braid armour, see 5.8;
• outer sheath applied as either one- or two-layer systems, see 5.9.

NOTE 1 Variable frequency drives induce specific electrical constraints on the connected power cables (for
example voltage peaks, harmonics, reflection or earthing method among other electrical stresses).

b) Armoured double-sheathed cable with inner and outer sheath

• copper conductor, see 5.2;
• insulation, see 5.3;
• cabling (for multicore cables), see 5.4;
• inner covering (optional, but mandatory when a braided or a metal tape electrostatic
screening is applied over the core lay-up), see 5.5;
• electrostatic screening (optional), see 5.6;
• inner sheath, see 5.7;
• braid armour, see 5.8;
• outer sheath applied as either one or two layer systems, see 5.9.
NOTE 2 The use of a thermoplastic inner sheath (ST2 or SHF1) is not recommended if the outer sheath consists
of an elastomeric crosslinked material compatible with cross-linking technology of elastomeric outer sheath.
c) Armoured single-sheathed cable with inner sheath only
• copper conductor, see 5.2;
• insulation, see 5.3;
• cabling (for multicore cables), see 5.4;
• inner covering (optional, but mandatory when a braided or a metal tape electrostatic
screening is applied over the core lay-up), see 5.5;
• electrostatic screening (optional), see 5.6;
• inner sheath, see 5.7;
• braid armour, see 5.8.
NOTE Cables for installation in spaces where corrosion may occur, for example weather decks,
wet locations, battery compartments, refrigeration rooms, etc., should have an outer sheath
over the braid, if any, unless the braid itself is corrosion-resistant.

5.2 Conductors
The material, metal coating, class and form of the conductors shall be in accordance with
IEC 60092-350. For cables having rated voltage 1,8/3 kV, only circular stranded compacted or
non-compacted conductors with a minimum cross-section of 10 mm² are permitted. A separator
between conductors and insulation is permitted.
5.3 Insulation
5.3.1 Material
The insulating compounds and their designations shall be as given in IEC 60092-351 IEC
60092-360, as follows:
– for 0,6/1 (1,2) kV cables, types EPR, HEPR, XLPE, HF 90 or S 95 shall be used;
– for 1,8/3 (3,6) kV cables, types only EPR, HEPR, XLPE shall be used.

The insulation system shall consist of one of the options a) to c) as listed in

IEC 60092-350:2014, 4.3.1.
5.3.2 Application
The application shall be as detailed in IEC 60092-350:2014, 4.3.2.

5.3.3 Thickness of insulation
The thickness of the insulation shall be as specified in Table 1 hereinafter and meet the

requirements of IEC 60092-350:2014, 4.3.3.

For single-core unarmoured unsheathed cables (see 5.1.2 a)), the total insulation thickness
shall be the sum of
a) the thickness t as specified in Table 1, and
j
b) the thickness as calculated in accordance with 5.9.3 a), with fictitious diameter D = d +2 t
L i
(see also IEC 60092-350:2014, A.3.1 and A.3.2). The total thickness shall meet the
requirements of IEC 60092-350:2014, 4.3.3.
Table 1 – Insulation thickness
0,6/1 kV 1,8/3 kV
Nominal cross EPR HEPR EPR HEPR
sectional
S 95 HF90 XLPE
area of conductor
XLPE
mm mm mm mm mm
1 1,0 0,7 – –
1,5 1,0 0,7 – –
2,5 1,0 0,7 – –
4 1,0 0,7 – –
6 1,0 0,7 – –
10 1,0 0,7 2,2 2,0
16 1,0 0,7 2,2 2,0
25 1,2 0,9 2,2 2,0
35 1,2 0,9 2,2 2,0
50 1,4 1,0 2,2 2,0
70 1,4 1,1 2,2 2,0
95 1,6 1,1 2,4 2,0
120 1,6 1,2 2,4 2,0
150 1,8 1,4 2,4 2,0
185 2,0 1,6 2,4 2,0
240 2,2 1,7 2,4 2,0
300 2,4 1,8 2,4 2,0
400 2,6 2,0 2,6 2,0
500 2,8 2,2 2,8 2,2
630 2,8 2,4 2,8 2,4
NOTE Alternative enhanced insulation thickness may can be given in some countries for legal reasons. These
alternative values are based on those given in Annex A.

– 12 – IEC 60092-353:2016 RLV © IEC 2016

5.4 Cabling (including fillers and binders)

Cores of a multicore cable shall be laid up, and the interstices filled if necessary with fillers,

inner covering or inner sheath (outer sheath in the case of unarmoured cables) according to

IEC 60092-350:2014, 4.5.
5.5 Inner covering
5.5.1 General
The inner covering, if any, may be extruded (mandatory below galvanized steel wire braid) or

lapped. The relevant material and characteristics shall be in accordance with

IEC 60092-350:2014, 4.6.
5.5.2 Thickness of inner covering
The values of the (approximate) thickness of extruded inner covering for the calculation of
fictitious diameters are given in Table 2.
Table 2 – Thickness of extruded inner covering and fictitious diameters
Fictitious diameter over laid up cores Thickness of extruded inner
covering
Above Up to and including (approximate value)
mm mm mm
– 25 1,0
25 35 1,2
35 45 1,4
45 60 1,6
60 80 1,8
80 – 2,0
The values of the (approximate) thickness of lapped covering for the calculation of the fictitious
diameters are 0,4 mm for fictitious diameter over laid-up cores up to and including 40 mm and
0,6 mm for larger diameters.
NOTE For the calculation of fictitious diameter, see IEC 60092-350:2014, Annexes A and C.
5.6 Screen
5.6.1 Construction
5.6.1.1 General
The screen, if any, shall be a collective metallic screen and shall be in accordance with
IEC 60092-350:2014, 4.4.2, and shall consist of one or more tapes, a braid or a combination of
a braid with tape(s).
5.6.1.2 Metal/polyester tape
The laminated electrostatic screening tape shall be applied with the metallic side in electrical
contact with a drain wire. The minimum overlap of the laminated tape shall be 15 % of its total
width, to ensure coverage in case of bending of the cable. The laminated tape shall be either
aluminium bonded to polyester having a minimum thickness of aluminium of 0,008 mm and a
minimum thickness of polyester of 0,010 mm, or copper bonded to polyester having a minimum
thickness of copper of 0,018 mm and a minimum thickness of polyester of 0,023 mm.

The drain wire shall be composed of a number of strands of tinned annealed copper wires in

the case of aluminium laminate tape and either plain or tinned annealed copper wires in the

case of copper laminate tape. The drain wire shall have a maximum resistance in accordance

with Table 3.
Table 3 – Requirements of drain wire

Nominal area of conductor of the cores Maximum drain wire resistance

mm ohm/km
1 28,3
1,0 to 1,5 28,3
2,5 and above 21,2
Polyester tape of either 0,023 mm or 0,050 mm nominal thickness shall be applied over the
screen with a minimum overlap of 15 % of its total width.
NOTE A screen consisting of a laminated electrostatic screening tape and a drain wire is not
suitable for carrying large short-circuit currents and should not be grounded with the protective
earth conductor of the applicable power circuit.
5.6.1.3 Metal tape
The specified nominal thickness for a plain metal tape shall be at least 0,1 mm.
5.6.1.4 Braid
The specified nominal thickness diameter for the braiding wires shall be at least 0,2 mm.
5.6.2 Application
The screen, if any, shall be applied over the inner covering in case of a braided or a metal tape
screen (see 5.1.2 and 5.1.3).
5.7 Inner sheath
5.7.1 Material
The inner sheathing compound and its designation shall be one of those given in
IEC 60092-359 except that PVC type ST1 is not permitted IEC 60092-360.

5.7.2 Application
The application shall be as detailed in IEC 60092-350:2014, 4.7.2.
5.7.3 Thickness of inner sheath
The thickness of the inner sheath is given as a function of the internal diameter of the sheath
under consideration, the fictitious diameter being calculated by the method given in
IEC 60092­350:2014, Annexes A and C.
The formula is the following:
a) for double-sheathed unarmoured cable as in 5.1.2 b):
t = 0,025 D + 0,6 mm, with a minimum thickness of 0,8 mm;
b) for armoured cable as 5.1.3 b) and c):

– 14 – IEC 60092-353:2016 RLV © IEC 2016

= 0,04 D + 0,8 mm, with a minimum thickness of 1,0 mm for construction 5.1.3 b) and
t
1,4 mm for construction 5.1.3 c)

where
D is the fictitious diameter under the inner sheath.

The thickness at any point shall satisfy the prescriptions requirements given in IEC 60092-

350:2014, 4.7.3.
5.8 Braid armour
5.8.1 General
In this document, only metal braid armours are specified, the braid wires being of copper,
copper alloy or galvanized steel.
Joints in the braiding wires shall be soldered, twisted or woven-in, and the complete braid shall
not be jointed. The braid shall be evenly applied.
The armour may serve as a collective metallic screen (see 5.6).
NOTE In some countries, the use of an armour as an earthing collective metallic screen is prohibited for legal
reasons.
5.8.2 Braid wire diameter
Irrespective of the metal used, the nominal diameter of the braid wire shall be
• 0,2 mm, as a minimum, for cables having fictitious diameter under the braid less than or
equal to 10 mm,
• 0,3 mm, as a minimum, for cables having fictitious diameter under the braid larger than
10 mm and less than or equal to 30 mm, and
• 0,4 mm, as a minimum, for cables having fictitious diameter under the braid larger than
30 mm.
5.8.3 Coverage density
The coverage density of the braid shall be in accordance with IEC 60092-350:2014, 4.8.2.
NOTE In case the alternative method in accordance with IEC 60092-350:2014, 4.8.2, is used to evaluate the
coverage density, the mean diameter of the braid to be used is the fictitious diameter under the braid plus two times
the nominal diameter of the braiding wires.
5.8.4 Application of the armour

The armour shall be applied in such a way that it shall neither adhere to the inner covering or
inner sheath nor to the outer sheath.
5.9 Outer sheath
5.9.1 Material
The outer sheathing compound and its designation shall be one of those given in
IEC 60092-359 except that PVC type ST1 is not permitted IEC 60092-360.
5.9.2 Application
The application shall be as detailed in IEC 60092-350:2014, 4.9.2.

5.9.3 Thickness of outer sheath

The thickness of outer sheath is given as a function of the internal diameter of the sheath

under consideration, the fictitious diameter being calculated by the method given in IEC 60092-

350:2014, Annexes A and C.
The formula is the following:
a) for unarmoured or armoured single-sheathed cables as in 5.1.2 a) and b) and 5.1.3 a):

t = 0,04 D + 0,8 mm with a minimum thickness of 1,0 mm
where D is the fictitious diameter under the sheath

b) for unarmoured double-sheathed cables as in 5.1.2 b):
t = 0,025 D + 0,9 mm, with a minimum thickness of 1,0 mm
c) for armoured double-sheathed cables as in 5.1.3 b):
t = 0,025 D + 0,6 mm, with a minimum thickness of 0,8 mm
The thickness at any point shall satisfy the prescriptions requirements given in IEC 60092-
350:2014, 4.9.3.
5.9.4 Colour of outer sheath
The outer sheath shall be colored black or grey, or, for fire resistant cables, orange, unless
otherwise specified by the purchaser at the time of ordering.
6 Tests – Methods and requirements
The tests shall be carried out according to Tables 4 to 8 where applicable.

– 16 – IEC 60092-353:2016 RLV © IEC 2016

Table 4 – Tests applicable to all cables (1 of 2)

Test Applicability – all Status Method – Requirement – as

types of cable subclause number in IEC 60092-350

unless otherwise given in unless otherwise

stated IEC 60092- stated
350:2014
Measurement of Routine 5.2.2 IEC 60228
electrical resistance
of conductors
Voltage test Routine 5.2.3 –
Voltage test on Armoured cables Routine 5.2.3.4 –

sheath
Insulation Routine; sample 5.2.4 –
resistance test
Type Sample 7.2.1
Conductor Sample and type 6.4 –
examination
Check of cable Sample and type
dimensions
– thickness of
6.5 and 8.2 –
insulation
6.6 and 8.3 –
– thickness of non
metallic sheaths
(excluding inner
coverings)
6.7 –
– external
diameter
Hot set test HEPR, EPR, XLPE, Sample 6.8 IEC 60092-351 and
HF 90, S 95 IEC 60092- 359
insulations and SE1
IEC 60092-360
SH, SE, SHF2
sheaths
Coverage density of Braid armoured Type 4.8.2
braid cables
Insulation Type 7.2.2 IEC 60092-351
resistance
IEC 60092-360
measurement at
maximum rated
temperature
Increase in a.c. AC Type 7.3 IEC 60092-351
capacitance after
IEC 60092-360
immersion in water
High-voltage test for Type 7.7.9
4 h
Mechanical Type 8.4 IEC 60092-351
properties of
IEC 60092-360
insulation before
and after ageing
Mechanical Type 8.5 IEC 60092-359
properties of sheath
IEC 60092-360
before and after
ageing
Additional ageing Type 8.6 IEC 60092-351 and
compatibility test IEC 60092- 359
IEC 60092-360
Loss of mass test PVC ST2 sheath Type 8.7 IEC 60092-359
IEC 60092-360
Table 4 (2 of 2)
Test Applicability – all Status Method – Requirement – as in

types of cable subclause IEC 60092-350

unless otherwise number given in unless otherwise

stated IEC 60092- stated
350:2014
Behaviour at high PVC ST2 and SHF1 Type 8.8 IEC 60092-359
temperature sheaths
IEC 60092-360
Behaviour at low PVC ST2, SHF1 Type 8.9 IEC 60092-359

temperatures and SHF2 sheaths
IEC 60092-360
Test for coating of Type 8.11
copper wires
Galvanizing test Type 8.12
Resistance to PVC ST2 and SHF1 Type 8.13 IEC 60092-359
cracking heat shock sheaths
IEC 60092-360
Ozone resistance HEPR, EPR, HF90 Type 8.14 IEC 60092-360
insulations and SH,
SE, SHF2 sheaths
Hot oil immersion SE1, SH and SHF2 Type 8.15.1 IEC 60092-359
sheaths
IEC 60092-360
Flame-spread Fire- Type 8.17.1 IEC 60332-1-2 and
retardant tests: IEC 60332-3-22 in
8.17.2
IEC 60332-1-2 and which case cables
IEC 60332-3-22 shall be installed in
the touching
configuration on the
front of the ladder.
Determination of HEPR insulation Type 8.18 IEC 60092-351
hardness
IEC 60092-360
Determination of HEPR insulation Type 8.19 IEC 60092-351
modulus of
IEC 60092-360
elasticity
Durability of Type 8.20 The marking shall
marking remain legible
following the test as
given in
IEC 60092-350:2014,
8.20
Table 5 – Additional tests required for halogen-free cables
Test Status Method – subclause Requirement – as in
number given in IEC 60092-350 unless
IEC 60092-350:2014 otherwise stated
Acid gas emission Type 8.17.4 IEC 60754-1
pH and conductivity Type 8.17.5 IEC 60754-2
Fluorine content test Type 8.17.6 IEC 60684-2

– 18 – IEC 60092-353:2016 RLV © IEC 2016

Table 6 – Additional test required for low smoke cables

Test Status Method – subclause Requirement – as in

number given in IEC 60092-350 unless otherwise

IEC 60092-350:2014 stated
Smoke emission test for cables Type 8.17.3 The test is satisfactory for the

insulated and sheathed with finished cables if the levels of light

halogen-free materials. When transmittance exceeds 60 %
tested according to IEC 61034-
throughout the test
1 and IEC 61034-2
NOTE The smoke emission test is in general applicable to halogen-free cables. See also Table 5.

Table 7 – Additional tests required for fire resistant cables
Test Status Method – Requirement – as in IEC 60092-350
subclause number unless otherwise stated
given in
IEC 60092-
350:2014
Test for fire resistance (limited Type 8.17.7 The test shall be carried out in
circuit integrity) accordance with IEC 60331-21 or
IEC 60331-1 or IEC 60331-2 and the
minimum time to failure shall be
90 min
NOTE The test apparatus for the test procedure defined in IEC 60331-21 is detailed in IEC 60331-11.

Table 8 – Additional tests required for specific performances
Test Status Method – Requirement – as in IEC 60092-350
subclause number unless otherwise stated
given in
IEC 60092-
350:2014
Special test for low temperature Type 8.10
behaviour
Enhanced hot oil immersion Type 8.15.2 IEC 60092-360
Mud fluid Drilling fluid test Type 8.16 IEC 60092-360

Annex A
(informative)
Alternative enhanced insulation thickness for 0,6/1 kV

NOTE 1 For legal reasons, in some countries, Annex A may become normative.

Table A.1 gives an overview of alternative enhanced insulation thickness for 0,6/1 kV.

Table A.1 – Alternative enhanced insulation thickness for 0,6/1 kV

Rated voltage 0,6/1 kV
Silicone rubber/EPR XLPE
Nominal cross-sectional Insulation thickness Nominal cross-sectional Insulation thickness
c
area area (t)
a b
(t) and
(S) (S)
2 2
mm mm mm mm
1 1,0 1,0 0,9
1,5 1,0 1,5 0,9
2,5 1,0 2,5 0,9
4 1,1 4 1,0
6 1,1 6 1,0
10 1,2 10 1,1
16 1,3 16 1,2
25 1,4 25 1,3
35 1,5 35 1,3
50 1,6 50 1,4
70 1,7 70 1,6
95 1,9 95 1,7
120 2,0 120 1,8
150 2,1 150 1,9
185 2,3 185 2,0
240 2,4 240 2,2
300 2,6 300 2,4
400 2,9 400 2,6
500 3,1 500 2,8
630 3,4 630 3,1
NOTE 2 For cross sections of 185 mm² and above, the insulation thickness is suitable for 3 kV. If in this case a
voltage rating of 3 kV is designated to the cable, this cable should be tested as a 3 kV cable.
a
These values of the insulation thickness correspond approximately to the formula:
mm
t = 0,1 S + 0,9
b
All these values may be reduced by 0,1 mm if the rubber wall is covered by an extruded skin of polyamide
or equivalent material.
c
These values of the insulation thickness correspond approximately to the formula:
mm
t = 0,09 S + 0,8
– 20 – IEC 60092-353:2016 RLV © IEC 2016

Annex B
(informative)
Identification of cores of multicore cables

B.1 Inscription
The inscription shall be composed
...


IEC 60092-353 ®
Edition 4.0 2016-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical installations in ships –
Part 353: Power cables for rated voltages 1 kV and 3 kV

Installations électriques à bord des navires –
Partie 353: Câbles d’énergie pour les tensions assignées 1 kV et 3 kV

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IEC 60092-353 ®
Edition 4.0 2016-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical installations in ships –

Part 353: Power cables for rated voltages 1 kV and 3 kV

Installations électriques à bord des navires –

Partie 353: Câbles d’énergie pour les tensions assignées 1 kV et 3 kV

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.20; 47.020.60 ISBN 978-2-8322-3623-9

– 2 – IEC 60092-353:2016 © IEC 2016
CONTENTS
FOREWORD .4
1 Scope and object .6
2 Normative references .6
3 Terms and definitions .7
4 General requirements .7
4.1 Rated voltage .7
4.2 Markings .8
4.2.1 Indication of origin and voltage identification .8
4.2.2 Continuity of marking .8
4.2.3 Core identification .8
5 Constructional requirements .8
5.1 General description .8
5.1.1 Overview .8
5.1.2 Unarmoured cables (excluding 1,8/3 kV) .8
5.1.3 Armoured cables .9
5.2 Conductors . 10
5.3 Insulation . 10
5.3.1 Material . 10
5.3.2 Application . 10
5.3.3 Thickness of insulation . 10
5.4 Cabling (including fillers and binders) . 11
5.5 Inner covering . 11
5.5.1 General . 11
5.5.2 Thickness of inner covering . 11
5.6 Screen . 12
5.6.1 Construction . 12
5.6.2 Application . 13
5.7 Inner sheath . 13
5.7.1 Material . 13
5.7.2 Application . 13
5.7.3 Thickness of inner sheath . 13
5.8 Braid armour . 13
5.8.1 General . 13
5.8.2 Braid wire diameter . 14
5.8.3 Coverage density . 14
5.8.4 Application of the armour . 14
5.9 Outer sheath . 14
5.9.1 Material . 14
5.9.2 Application . 14
5.9.3 Thickness of outer sheath . 14
5.9.4 Colour of outer sheath . 15
6 Tests – Methods and requirements . 15
Annex A (informative) Alternative enhanced insulation thickness for 0,6/1 kV . 18
Annex B (informative) Identification of cores of multicore cables . 19
B.1 Inscription . 19

B.2 Arrangement of the marks . 19
B.3 Spacing and dimensions of the marks . 19
B.4 Appearance of inscription . 20
Bibliography . 21

Figure B.1 – Arrangement of the marks . 19

Table 1 – Insulation thickness . 11
Table 2 – Thickness of extruded inner covering and fictitious diameters . 12
Table 3 – Requirements of drain wire . 12
Table 4 – Tests applicable to all cables (1 of 2) . 15
Table 5 – Additional tests required for halogen-free cables . 16
Table 6 – Additional test required for low smoke cables . 17
Table 7 – Additional test required for fire resistant cables . 17
Table 8 – Additional tests required for specific performances . 17
Table A.1 – Alternative enhanced insulation thickness for 0,6/1 kV . 18
Table B.1 – Dimensions of the marks . 20

– 4 – IEC 60092-353:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 353: Power cables for rated voltages 1 kV and 3 kV

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) 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 60092-353 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 fourth edition cancels and replaces the third edition published in 2011. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) updated references to IEC 60092-350 for general construction and test methods and
IEC 60092-360 for insulating and sheathing materials.

The text of this document is based on the following documents:
FDIS Report on voting
18A/399/FDIS 18A/400/RVD
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 publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A 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 publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – IEC 60092-353:2016 © IEC 2016
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 353: Power cables for rated voltages 1 kV and 3 kV

1 Scope and object
This part of IEC 60092 is applicable to shipboard and offshore non radial field power cables
with extruded solid insulation, having a voltage rating of 0,6/1 (1,2) kV or 1,8/3 (3,6) kV
intended for fixed installations.
Cables designed to maintain circuit integrity during fire are included.
The various types of power cables are given in 5.1. 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 61892-4,
– to lay down standard manufacturing requirements and characteristics of such cables
directly or indirectly bearing on safety, and
– to specify test methods for checking conformity with those requirements.
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
IEC 60092-350:2014, Electrical installations in ships – Part 350: General construction and
test methods of power, control and instrumentation cables for shipboard and offshore
applications
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 60228, Conductors of insulated cables
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 60331-21, 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 cables 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 60445, Basic and safety principles for man-machine interface, marking and identification
– Identification of equipment terminals, conductor terminations and conductors
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 61034-2, Measurement of smoke density of cables burning under defined conditions –
Part 2: Test procedure and requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60092-350 and in
IEC 60050-461 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
4 General requirements
4.1 Rated voltage
The standard method of designating the rated voltages of cables covered by this document
shall take the following form:
U /U (U )
o m
where
U is the rated power-frequency voltage between phase conductor and earth or metallic
o
screen, for which the cable is designed;
U is the rated power-frequency voltage between phase conductors for which the cable is
designed;
U is the maximum value of the “highest system voltage” for which the equipment (including
m
cable) may be used (see IEC 60038).
All voltages are given as RMS values.

– 8 – IEC 60092-353:2016 © IEC 2016
The standard rated voltages U /U (U ) of the cables considered in this document are the
o m
following:
U /U (U ) = 0,6/1 (1,2) kV and 1,8/3 (3,6) kV
o m
For 0,6/1 (1,2) kV cables, DC voltage up to a maximum of 1,5 times the AC voltage may be
used provided that the voltage to earth does not exceed 0,9 kV.
4.2 Markings
4.2.1 Indication of origin and voltage identification
Cables shall comply with IEC 60092-350:2014, 4.1.3, with respect to
a) indication of origin,
b) rated voltage and cable construction (number of cores and cross sectional area of the
construction),
c) continuity of marking, and
d) durability/legibility.
4.2.2 Continuity of marking
The marking is deemed to be continuous if the distance between the end of any marking and
the beginning of the next does not exceed
a) 550 mm if the marking is on the outer surface of the cable, and
b) 275 mm in all other cases.
4.2.3 Core identification
4.2.3.1 General
Cable cores shall be clearly identified by either colours or numbers.
4.2.3.2 Coloured cores
The core colours shall be in accordance with IEC 60445.
4.2.3.3 Numbered cores – Multicore cables
Identification shall be made by inscription of numbers on each core starting from the centre
beginning with 1 in accordance with Annex B.
5 Constructional requirements
5.1 General description
5.1.1 Overview
Shipboard and offshore cables for fixed installations shall be single or multicore cables
generally constructed as follows.
5.1.2 Unarmoured cables (excluding 1,8/3 kV)
a) Single-core unarmoured unsheathed cable
• copper conductor, see 5.2;
• insulation applied as a single layer of insulating compound of one of the types
described in 5.3 with an enhanced thickness equivalent to that of a combined
insulation and outer sheath for use in unarmoured cables installed in an adequately
protected environment (see 5.3.3 for the thickness).
b) Unarmoured single- or double-sheathed cable
• copper conductor, see 5.2;
• insulation, see 5.3;
• cabling (for multicore cables), see 5.4;
• inner covering (optional, but mandatory when a braided or a metal tape electrostatic
screening is applied over the core lay-up), see 5.5;
• electrostatic screening (optional), see 5.6;
• inner sheath (optional), see 5.7;
• outer sheath applied as either one or two layer systems, see 5.9.
5.1.3 Armoured cables
a) Armoured single-sheathed cable with outer sheath only
• copper conductor, see 5.2;
• insulation, see 5.3;
• cabling (for multicore cables), see 5.4;
• inner covering below electrostatic screening (optional, but mandatory when a braided
or a metal tape electrostatic screening is applied over the core lay-up), see 5.5;
• electrostatic screening (optional), see 5.6;
• inner covering (optional, but mandatory in case of a braid armour of galvanised steel
wires in which case the inner covering shall be extruded), see 5.5;
• braid armour, see 5.8;
• outer sheath applied as either one- or two-layer systems, see 5.9.
NOTE 1 Variable frequency drives induce specific electrical constraints on the connected power cables (for
example voltage peaks, harmonics, reflection or earthing method among other electrical stresses).
b) Armoured double-sheathed cable with inner and outer sheath
• copper conductor, see 5.2;
• insulation, see 5.3;
• cabling (for multicore cables), see 5.4;
• inner covering (optional, but mandatory when a braided or a metal tape electrostatic
screening is applied over the core lay-up), see 5.5;
• electrostatic screening (optional), see 5.6;
• inner sheath, see 5.7;
• braid armour, see 5.8;
• outer sheath applied as either one or two layer systems, see 5.9.
NOTE 2 The use of a thermoplastic inner sheath (ST2 or SHF1) is not compatible with cross-linking technology of
elastomeric outer sheath.
c) Armoured single-sheathed cable with inner sheath only
• copper conductor, see 5.2;
• insulation, see 5.3;
• cabling (for multicore cables), see 5.4;

– 10 – IEC 60092-353:2016 © IEC 2016
• inner covering (optional, but mandatory when a braided or a metal tape electrostatic
screening is applied over the core lay-up), see 5.5;
• electrostatic screening (optional), see 5.6;
• inner sheath, see 5.7;
• braid armour, see 5.8.
Cables for installation in spaces where corrosion may occur, for example weather decks, wet
locations, battery compartments, refrigeration rooms, should have an outer sheath over the
braid, unless the braid itself is corrosion-resistant.
5.2 Conductors
The material, metal coating, class and form of the conductors shall be in accordance with
IEC 60092-350. For cables having rated voltage 1,8/3 kV, only circular stranded compacted
or non-compacted conductors with a minimum cross-section of 10 mm² are permitted. A
separator between conductors and insulation is permitted.
5.3 Insulation
5.3.1 Material
The insulating compounds and their designations shall be as given in IEC 60092-360, as
follows:
– for 0,6/1 (1,2) kV cables, types EPR, HEPR, XLPE, HF 90 or S 95 shall be used;
– for 1,8/3 (3,6) kV cables, types only EPR, HEPR, XLPE shall be used.
The insulation system shall consist of one of the options a) to c) as listed in
IEC 60092-350:2014, 4.3.1.
5.3.2 Application
The application shall be as detailed in IEC 60092-350:2014, 4.3.2.
5.3.3 Thickness of insulation
The thickness of the insulation shall be as specified in Table 1 hereinafter and meet the
requirements of IEC 60092-350:2014, 4.3.3.
For single-core unarmoured unsheathed cables (see 5.1.2 a)), the total insulation thickness
shall be the sum of
a) the thickness t as specified in Table 1, and
j
b) the thickness as calculated in accordance with 5.9.3 a), with fictitious diameter D = d +2 t
L i
(see also IEC 60092-350:2014, A.3.1 and A.3.2). The total thickness shall meet the
requirements of IEC 60092-350:2014, 4.3.3.

Table 1 – Insulation thickness
0,6/1 kV 1,8/3 kV
Nominal cross EPR HEPR EPR HEPR
sectional
S 95 HF90 XLPE
area of conductor
XLPE
mm mm mm mm mm
1 1,0 0,7 – –
1,5 1,0 0,7 – –
2,5 1,0 0,7 – –
4 1,0 0,7 – –
6 1,0 0,7 – –
10 1,0 0,7 2,2 2,0
16 1,0 0,7 2,2 2,0
25 1,2 0,9 2,2 2,0
35 1,2 0,9 2,2 2,0
50 1,4 1,0 2,2 2,0
70 1,4 1,1 2,2 2,0
95 1,6 1,1 2,4 2,0
120 1,6 1,2 2,4 2,0
150 1,8 1,4 2,4 2,0
185 2,0 1,6 2,4 2,0
240 2,2 1,7 2,4 2,0
300 2,4 1,8 2,4 2,0
400 2,6 2,0 2,6 2,0
500 2,8 2,2 2,8 2,2
630 2,8 2,4 2,8 2,4
NOTE Alternative enhanced insulation thickness can be given in some countries for legal reasons. These
alternative values are based on those given in Annex A.

5.4 Cabling (including fillers and binders)
Cores of a multicore cable shall be laid up, and the interstices filled if necessary with fillers,
inner covering or inner sheath (outer sheath in the case of unarmoured cables) according to
IEC 60092-350:2014, 4.5.
5.5 Inner covering
5.5.1 General
The inner covering, if any, may be extruded (mandatory below galvanized steel wire braid) or
lapped. The relevant material and characteristics shall be in accordance with
IEC 60092-350:2014, 4.6.
5.5.2 Thickness of inner covering
The values of the (approximate) thickness of extruded inner covering for the calculation of
fictitious diameters are given in Table 2.

– 12 – IEC 60092-353:2016 © IEC 2016
Table 2 – Thickness of extruded inner covering and fictitious diameters
Fictitious diameter over laid up cores Thickness of extruded inner
covering
Above Up to and including (approximate value)
mm mm mm
– 25 1,0
25 35 1,2
35 45 1,4
45 60 1,6
60 80 1,8
80 – 2,0
The values of the (approximate) thickness of lapped covering for the calculation of the
fictitious diameters are 0,4 mm for fictitious diameter over laid-up cores up to and including
40 mm and 0,6 mm for larger diameters.
NOTE For the calculation of fictitious diameter, see IEC 60092-350:2014, Annexes A and C.
5.6 Screen
5.6.1 Construction
5.6.1.1 General
The screen, if any, shall be a collective metallic screen and shall be in accordance with
IEC 60092-350:2014, 4.4.2, and shall consist of one or more tapes, a braid or a combination
of a braid with tape(s).
5.6.1.2 Metal/polyester tape
The laminated electrostatic screening tape shall be applied with the metallic side in electrical
contact with a drain wire. The minimum overlap of the laminated tape shall be 15 % of its
total width, to ensure coverage in case of bending of the cable. The laminated tape shall be
either aluminium bonded to polyester having a minimum thickness of aluminium of 0,008 mm
and a minimum thickness of polyester of 0,010 mm, or copper bonded to polyester having a
minimum thickness of copper of 0,018 mm and a minimum thickness of polyester of
0,023 mm.
The drain wire shall be composed of a number of strands of tinned annealed copper wires in
the case of aluminium laminate tape and either plain or tinned annealed copper wires in the
case of copper laminate tape. The drain wire shall have a maximum resistance in accordance
with Table 3.
Table 3 – Requirements of drain wire
Nominal area of conductor of the cores Maximum drain wire resistance
mm ohm/km
1,0 to 1,5 28,3
2,5 and above 21,2
Polyester tape of either 0,023 mm or 0,050 mm nominal thickness shall be applied over the
screen with a minimum overlap of 15 % of its total width.

A screen consisting of a laminated electrostatic screening tape and a drain wire is not
suitable for carrying large short-circuit currents and should not be grounded with the
protective earth conductor of the applicable power circuit.
5.6.1.3 Metal tape
The specified nominal thickness for a plain metal tape shall be at least 0,1 mm.
5.6.1.4 Braid
The specified nominal diameter for the braiding wires shall be at least 0,2 mm.
5.6.2 Application
The screen, if any, shall be applied over the inner covering in case of a braided or a metal
tape screen (see 5.1.2 and 5.1.3).
5.7 Inner sheath
5.7.1 Material
The inner sheathing compound and its designation shall be one of those given in
IEC 60092-360.
5.7.2 Application
The application shall be as detailed in IEC 60092-350:2014, 4.7.2.
5.7.3 Thickness of inner sheath
The thickness of the inner sheath is given as a function of the internal diameter of the sheath
under consideration, the fictitious diameter being calculated by the method given in
IEC 60092­350:2014, Annexes A and C.
The formula is the following:
a) for double-sheathed unarmoured cable as in 5.1.2 b):
t = 0,025 D + 0,6 mm, with a minimum thickness of 0,8 mm;
b) for armoured cable as 5.1.3 b) and c):
t = 0,04 D + 0,8 mm, with a minimum thickness of 1,0 mm for construction 5.1.3 b) and
1,4 mm for construction 5.1.3 c)
where
D is the fictitious diameter under the inner sheath.
The thickness at any point shall satisfy the requirements given in IEC 60092-350:2014, 4.7.3.
5.8 Braid armour
5.8.1 General
In this document, only metal braid armours are specified, the braid wires being of copper,
copper alloy or galvanized steel.
Joints in the braiding wires shall be soldered, twisted or woven-in, and the complete braid
shall not be jointed. The braid shall be evenly applied.
The armour may serve as a collective metallic screen (see 5.6).

– 14 – IEC 60092-353:2016 © IEC 2016
NOTE In some countries, the use of an armour as an earthing collective metallic screen is prohibited for legal
reasons.
5.8.2 Braid wire diameter
Irrespective of the metal used, the nominal diameter of the braid wire shall be
• 0,2 mm, as a minimum, for cables having fictitious diameter under the braid less than or
equal to 10 mm,
• 0,3 mm, as a minimum, for cables having fictitious diameter under the braid larger than
10 mm and less than or equal to 30 mm, and
• 0,4 mm, as a minimum, for cables having fictitious diameter under the braid larger than
30 mm.
5.8.3 Coverage density
The coverage density of the braid shall be in accordance with IEC 60092-350:2014, 4.8.2.
NOTE In case the alternative method in accordance with IEC 60092-350:2014, 4.8.2, is used to evaluate the
coverage density, the mean diameter of the braid to be used is the fictitious diameter under the braid plus two
times the nominal diameter of the braiding wires.
5.8.4 Application of the armour
The armour shall be applied in such a way that it shall neither adhere to the inner covering or
inner sheath nor to the outer sheath.
5.9 Outer sheath
5.9.1 Material
The outer sheathing compound and its designation shall be one of those given in IEC 60092-
360.
5.9.2 Application
The application shall be as detailed in IEC 60092-350:2014, 4.9.2.
5.9.3 Thickness of outer sheath
The thickness of outer sheath is given as a function of the internal diameter of the sheath
under consideration, the fictitious diameter being calculated by the method given in
IEC 60092-350:2014, Annexes A and C.
The formula is the following:
a) for unarmoured or armoured single-sheathed cables as in 5.1.2 a) and b) and 5.1.3 a):
t = 0,04 D + 0,8 mm with a minimum thickness of 1,0 mm
where D is the fictitious diameter under the sheath
b) for unarmoured double-sheathed cables as in 5.1.2 b):
t = 0,025 D + 0,9 mm, with a minimum thickness of 1,0 mm
c) for armoured double-sheathed cables as in 5.1.3 b):
t = 0,025 D + 0,6 mm, with a minimum thickness of 0,8 mm
The thickness at any point shall satisfy the requirements given in IEC 60092-350:2014, 4.9.3.

5.9.4 Colour of outer sheath
The outer sheath shall be colored black or grey, or, for fire resistant cables, orange, unless
otherwise specified by the purchaser at the time of ordering.
6 Tests – Methods and requirements
The tests shall be carried out according to Tables 4 to 8 where applicable.
Table 4 – Tests applicable to all cables (1 of 2)
Test Applicability – all Status Method – Requirement – as
types of cable subclause number in IEC 60092-350
unless otherwise given in unless otherwise
stated IEC 60092- stated
350:2014
Measurement of Routine 5.2.2 IEC 60228
electrical resistance
of conductors
Voltage test Routine 5.2.3 –
Voltage test on Armoured cables Routine 5.2.3.4 –
sheath
Insulation Sample 7.2 –
resistance test
Conductor Sample and type 6.4 –
examination
Check of cable Sample and type
dimensions
– thickness of
6.5 and 8.2 –
insulation
6.6 and 8.3 –
– thickness of non
metallic sheaths
(excluding inner
coverings)
6.7 –
– external
diameter
Hot set test HEPR, EPR, XLPE, Sample 6.8 IEC 60092-360
HF 90, S 95
insulations and SH,
SE, SHF2 sheaths
Coverage density of Braid armoured Type 4.8.2
braid cables
Insulation Type 7.2.2 IEC 60092-360
resistance
measurement at
maximum rated
temperature
Increase in AC Type 7.3 IEC 60092-360
capacitance after
immersion in water
High-voltage test Type 7.7.9
for 4 h
Mechanical Type 8.4 IEC 60092-360
properties of
insulation before
and after ageing
Mechanical Type 8.5 IEC 60092-360
properties of sheath
before and after
ageing
Additional ageing Type 8.6 IEC 60092-360
compatibility test
Loss of mass test PVC ST2 sheath Type 8.7 IEC 60092-360

– 16 – IEC 60092-353:2016 © IEC 2016
Table 4 (2 of 2)
Test Applicability – all Status Method – Requirement – as in
types of cable subclause IEC 60092-350
unless otherwise number given in unless otherwise
stated IEC 60092- stated
350:2014
Behaviour at high PVC ST2 and SHF1 Type 8.8 IEC 60092-360
temperature sheaths
Behaviour at low PVC ST2, SHF1 Type 8.9 IEC 60092-360
temperatures and SHF2 sheaths
Test for coating of Type 8.11
copper wires
Galvanizing test Type 8.12
Resistance to PVC ST2 and SHF1 Type 8.13 IEC 60092-360
cracking heat shock sheaths
Ozone resistance HEPR, EPR, HF90 Type 8.14 IEC 60092-360
insulations and SH,
SE, SHF2 sheaths
Hot oil immersion SE1, SH and SHF2 Type 8.15.1 IEC 60092-360
sheaths
Fire-retardant tests: Type 8.17.1 IEC 60332-1-2 and
IEC 60332-1-2 and IEC 60332-3-22 in
8.17.2
IEC 60332-3-22 which case cables
shall be installed in
the touching
configuration on the
front of the ladder.
Determination of HEPR insulation Type 8.18 IEC 60092-360
hardness
Determination of HEPR insulation Type 8.19 IEC 60092-360
modulus of
elasticity
Durability of Type 8.20 The marking shall
marking remain legible
following the test as
given in
IEC 60092-350:2014,
8.20
Table 5 – Additional tests required for halogen-free cables
Test Status Method – subclause Requirement – as in
number given in IEC 60092-350 unless
IEC 60092-350:2014 otherwise stated
Acid gas emission Type 8.17.4 IEC 60754-1
pH and conductivity Type 8.17.5 IEC 60754-2
Fluorine content test Type 8.17.6 IEC 60684-2

Table 6 – Additional test required for low smoke cables
Test Status Method – subclause Requirement – as in
number given in IEC 60092-350 unless otherwise
IEC 60092-350:2014 stated
Smoke emission test for cables Type 8.17.3 The test is satisfactory for the
insulated and sheathed with finished cables if the levels of light
halogen-free materials. When transmittance exceed 60 %
tested according to throughout the test
IEC 61034-2
NOTE The smoke emission test is in general applicable to halogen-free cables. See also Table 5.

Table 7 – Additional test required for fire resistant cables
Test Status Method – Requirement – as in IEC 60092-350
subclause number unless otherwise stated
given in
IEC 60092-
350:2014
Test for fire resistance (limited Type 8.17.7 The test shall be carried out in
circuit integrity) accordance with IEC 60331-21 or
IEC 60331-1 or IEC 60331-2 and the
minimum time to failure shall be
90 min
NOTE The test apparatus for the test procedure defined in IEC 60331-21 is detailed in IEC 60331-11.

Table 8 – Additional tests required for specific performances
Test Status Method – Requirement – as in IEC 60092-350
subclause number unless otherwise stated
given in
IEC 60092-
350:2014
Special test for low temperature Type 8.10
behaviour
Enhanced hot oil immersion Type 8.15.2 IEC 60092-360
Drilling fluid test Type 8.16 IEC 60092-360

– 18 – IEC 60092-353:2016 © IEC 2016
Annex A
(informative)
Alternative enhanced insulation thickness for 0,6/1 kV
NOTE For legal reasons, in some countries, Annex A may become normative.
Table A.1 gives an overview of alternative enhanced insulation thickness for 0,6/1 kV.
Table A.1 – Alternative enhanced insulation thickness for 0,6/1 kV
Rated voltage 0,6/1 kV
Silicone rubber/EPR XLPE
Nominal cross-sectional Insulation thickness Nominal cross-sectional Insulation thickness
c
area area (t)
a b
(t) and
(S) (S)
2 2
mm mm mm mm
1 1,0 1,0 0,9
1,5 1,0 1,5 0,9
2,5 1,0 2,5 0,9
4 1,1 4 1,0
6 1,1 6 1,0
10 1,2 10 1,1
16 1,3 16 1,2
25 1,4 25 1,3
35 1,5 35 1,3
50 1,6 50 1,4
70 1,7 70 1,6
95 1,9 95 1,7
120 2,0 120 1,8
150 2,1 150 1,9
185 2,3 185 2,0
240 2,4 240 2,2
300 2,6 300 2,4
400 2,9 400 2,6
500 3,1 500 2,8
630 3,4 630 3,1
For cross sections of 185 mm² and above, the insulation thickness is suitable for 3 kV. If in this case a voltage
rating of 3 kV is designated to the cable, this cable should be tested as a 3 kV cable.
a
These values of the insulation thickness correspond approximately to the formula:
mm
t= 0,1 S+ 0,9
b
All these values may be reduced by 0,1 mm if the rubber wall is covered by an extruded skin of polyamide
or equivalent material.
c
These values of the insulation thickness correspond approximately to the formula:
mm
t= 0,09 S+ 0,8
Annex B
(informative)
Identification of cores of multicore cables
B.1 Inscription
The inscription shall be composed of marks at regular intervals along the entire length of core
and comprising:
a) a reference number in Arabic numerals;
b) a dash which underlines this reference number and indicates the direction in which the
number shall be read.
B.2 Arrangement of the marks
Two consecutive marks shall always be placed upside down in relation to one another. The
arrangement of the marks is shown in Figure B.1.
d d
h i
i
IEC
Key
Refer to Clause B.3 below.
Figure B.1 – Arrangement of the mark
...

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