IEC 60502-2:2014/AMD1:2024
(Amendment)Amendment 1 - Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) - Part 2: Cables for rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36 kV)
Amendment 1 - Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) - Part 2: Cables for rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36 kV)
Amendement 1 - Câbles d'énergie à isolant extrudé et leurs accessoires pour des tensions assignées de 1 kV (<em>U</em><sub>m</sub> = 1,2 kV) à 30 kV (<em>U</em><sub>m</sub> = 36 kV) - Partie 2: Câbles de tensions assignées de 6 kV (<em>U</em><sub>m</sub> = 7,2 kV) à 30 kV (<em>U</em><sub>m</sub> = 36 kV)
General Information
Relations
Buy Standard
Standards Content (Sample)
IEC 60502-2 ®
Edition 3.0 2024-05
INTERNATIONAL
STANDARD
AMENDMENT 1
Power cables with extruded insulation and their accessories for rated voltages
from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) –
Part 2: Cables for rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36 kV)
IEC 60502-2:2014-02/AMD1:2024-05(en)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.
IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.
Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 60502-2 ®
Edition 3.0 2024-05
INTERNATIONAL
STANDARD
AMENDMENT 1
Power cables with extruded insulation and their accessories for rated voltages
from 1 kV (U = 1,2 kV) up to 30 kV (U = 36 kV) –
m m
Part 2: Cables for rated voltages from 6 kV (U = 7,2 kV) up to 30 kV (U = 36 kV)
m m
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.20 ISBN 978-2-8322-8960-0
– 2 – IEC 60502-2:2014/AMD1:2024
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWER CABLES WITH EXTRUDED INSULATION AND THEIR
ACCESSORIES FOR RATED VOLTAGES FROM 1 kV
(U = 1,2 kV) UP TO 30 kV (U = 36 kV) –
m m
Part 2: Cables for rated voltages from 6 kV
(U = 7,2 kV) up to 30 kV (U = 36 kV)
m m
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 60502-2:2014 has been prepared by IEC technical committee 20: Electric
cables.
The text of this Amendment is based on the following documents:
Draft Report on voting
20/2166/FDIS 20/2181/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
© IEC 2024
The language used for the development of this Amendment is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications/.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
___________
2 Normative references
Add the following new references:
IEC 60332-3-24, Tests on electric and optical fibre cables under fire conditions – Part 3-24:
Test for vertical flame spread of vertically-mounted bunched wires or cables – Category C
IEC 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 60754-3, Test on gases evolved during combustion of materials from cables – Part 3:
Measurement of low level of halogen content by ion chromatography
IEC 61034-2, Measurement of smoke density of cables burning under defined conditions –
Part 2: Test procedure and requirements
4.3 Sheathing compounds
Table 4
Add, in the existing Table 4, under item a) Thermoplastic, below "polyethylene", the following
two new types of halogen free compound, as follows:
– 4 – IEC 60502-2:2014/AMD1:2024
© IEC 2024
Table 4 – Maximum conductor temperatures for different types of sheathing compound
Sheathing compound Abbreviated designation Maximum conductor temperature
in normal operation
°C
halogen free ST 90
ST 90
13 Metal armour
13.1 Types of metal armour
Add, after item c), the following new item d):
d) interlock metal tape armour.
13.2 Materials
Add, after the second paragraph, the following new note:
NOTE Other metal materials can be used upon agreement between the manufacturer and customer.
13.4 Dimensions of the armour wires and armour tapes
Replace the existing title of 13.4 and, consequently, the existing first paragraph with the
following new title and paragraph:
13.4 Dimensions of the armour wires, armour tapes and armour strips
The nominal dimensions of the armour wires, armour tapes and armour strips shall be one of
the following values:
Add, at the end of 13.4, the following new text:
strips of the interlocked armour:
0,65 – 0,90 – 1,05 mm thickness (before forming).
13.5 Correlation between cable diameters and armour dimensions
Replace the existing first paragraph with the following new paragraph:
The nominal diameters of round armour wires, nominal thickness of armour tapes and the
thickness of armour strips, shall not be less than the values given in Table 9, Table 10 and
Table 24 respectively.
© IEC 2024
Add, at the end of the existing Table 10, the following new Table 24:
Table 24 – Nominal thickness of armour strips
Fictitious diameter under interlock armour Nominal thickness of strip
(before forming)
mm
Above Up to and including
mm mm
- 20 0,65
20 40 0,90
40 - 1,05
Add, at the end of 13.7, the following new Subclause 13.8:
13.8 Interlock metal tape armour
Interlocking armour is the process of continuously forming a metal strip(s) into helical coil(s) in
which the leading edge of the formed strip engages with the trailing edge of the adjacent strip
to form a continuous flexible tube which is applied over the underlying cable layer (assembly of
cores, bedding, or separation sheath).
The interlocked metal tape armour shall, with the oversheath removed, allow bending without
opening at any point or damaging the cable when bent around a mandrel having a diameter not
more than 10 times the diameter over the armour.
14 Oversheath
14.1 General
Replace the existing text of 14.1 with the following new text:
All cables shall have an oversheath.
The oversheath is normally black but a colour other than black may be provided by agreement
between the manufacturer and customer, subject to its suitability for the particular conditions
under which the cable is to be used.
If there is concern that the oversheath will be deteriorated by UV radiation, the oversheath shall
be protected against UV radiation, which will be mutually agreed with the customer. Black
polyethylene oversheaths containing the required amount of a suitable and well-dispersed
grade of carbon black (see Table 22) can provide protection against UV radiation depending on
geographical regions and meteorological conditions.
NOTE 1 For some applications the oversheath can be covered by a functional layer (e.g. semi-conductive).
NOTE 2 Halogen free fire retardant oversheaths are not intended for installations outdoors and are not normally
considered as UV protected.
– 6 – IEC 60502-2:2014/AMD1:2024
© IEC 2024
14.2 Material
Replace the existing text of 14.2 with the following new text:
The oversheath shall consist of an extruded compound selected from the types listed in Table 4.
Halogen free sheathing material ST or ST shall be used on cables which exhibit properties
8 12
of reduced flame spread, low levels of smoke emission and halogen free gas emission when
exposed to fire. The oversheath (ST or ST ) of halogen free cables shall meet the
8 12
requirements given in Table 20 and Table 25.
These two oversheath material grades have different mechanical requirements. They depend
on installation conditions and cable designs, and on which of these two are suitable. Further
guidance on selection can be given in regional or national standards.
The sheathing material shall be suitable for the operating temperature in accordance with
Table 4.
NOTE Chemical additives can be requested for use in the oversheath for special purposes, for example termite
protection.
17 Sample tests
17.1 General
Add, after item d), the following new item e):
e) bending test on interlock armour cable followed by examination (see 17.11).
17.7 Measurement of armour wires and tapes
Replace the existing title of 17.7 with the following new title:
17.7 Measurement of armour wires, tapes and armour strips
17.7.2 Measurement on tapes
Replace the existing title of 17.7.2 and paragraph with the following new title and paragraphs:
17.7.2 Measurement on tapes and armour strips
The measurements shall be made with a mi
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.