SIST EN IEC 62641:2023

Conductors for overhead lines - Aluminium and aluminium alloy wires for concentric lay stranded conductors (IEC 62641:2022)

IEC 62641:2022 specifies the mechanical and electrical properties of round and formed wires for equivalent diameters up to the values according to Table 3 for aluminium and aluminium alloys and according to Table 4 for thermal resistant alloys. This document is applicable to aluminium and aluminium alloy wires for the manufacture of concentric lay overhead electrical stranded conductors with or without gap(s) for power transmission purposes.
The various materials and their designations are listed in Table 1. For calculation purposes, the values listed in Table 1 are used.
This first edition cancels and replaces the second edition of IEC 60104 published in 1987, the first edition of IEC 60121 published in 1960, the first edition of IEC 60889 published in 1987, and the first edition of IEC 62004 published in 2007. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous editions of IEC 60104, IEC 60121, IEC 60889 and IEC 62004:

   
1. designations of aluminium alloys are modified;

   
2. aluminium alloys A4, AL4 and AL5 are added;

   
3. wire diameter ranges for indicating mechanical properties are modified and extended;

   
4. test methods are merged.

Leiter für Freileitungen - Drähte aus Aluminium und Aluminiumlegierung für Leiter aus konzentrisch verseilten Drähten (IEC 62641:2022)

Conducteurs pour lignes aériennes - Fils d'aluminium et en alliage d'aluminium pour conducteurs toronnés à couches concentriques (IEC 62641:2022)

La CEI 62641:2022 spécifie les propriétés mécaniques et électriques des fils ronds et de forme pour des diamètres équivalents jusqu’aux valeurs indiquées dans le Tableau 3 pour l’aluminium et les alliages d’aluminium et dans le Tableau 4 pour les alliages résistants à la chaleur. Le présent document s’applique aux fils d’aluminium et en alliage d’aluminium destinés à la fabrication de conducteurs toronnés à couches concentriques pour lignes électriques aériennes, avec ou sans espace(s) pour le transport d’énergie.
Les différents matériaux et leurs désignations sont énumérés dans le Tableau 1. Les valeurs indiquées dans ce Tableau 1 sont utilisées pour les calculsCette première édition annule et remplace la deuxième édition de l’IEC 60104 parue en 1987, la première édition de l’IEC 60121 parue en 1960, la première édition de l’IEC 60889 parue en 1987 et la première édition de l’IEC 62004 parue en 2007. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport aux éditions précédentes de l’IEC 60104, l’IEC 60121, l’IEC 60889 et l’IEC 62004:

   
1. les désignations des alliages d’aluminium sont modifiées;

   
2. les alliages d’aluminium A4, AL4 et AL5 sont ajoutés;

   
3. les plages de diamètre du fil qui indiquent les propriétés mécaniques sont modifiées et étendues;

   
4. les méthodes d’essai sont fusionnées.

Vodniki za nadzemne vode - Aluminijaste žice in žice iz aluminijeve zlitine za koncentrične pletene vodnike (IEC 62641:2022)

Ta dokument določa mehanske in električne lastnosti okroglih oziroma oblikovanih žic za enakovredne premere do vrednosti, navedenih v preglednici 3 za aluminij in aluminijeve zlitine ter v preglednici 4 za toplotno odporne zlitine. Ta dokument se uporablja za aluminijaste žice in žice iz aluminijeve zlitine za proizvodnjo koncentričnih nadzemnih električnih pletenih vodnikov, z iskrišči ali brez njih, za namene prenosa moči.
Različni materiali in njihove oznake so navedeni v preglednici 1. Pri izračunih se uporabljajo vrednosti iz preglednice 1.

General Information

• Status: Published
• Public Enquiry End Date: 18-Jul-2021
• Publication Date: 18-Dec-2022
• ICS: 29.240.20 - Power transmission and distribution lines
• ICS: 77.150.10 - Aluminium products
• Technical Committee: NVV - Overhead lines and overhead electrical conductors
• Current Stage: 6100 - Translation of adopted SIST standards (Adopted Project)
• Start Date: 09-Aug-2024
• Due Date: 08-Aug-2025
• Completion Date: 13-May-2026
• Ref Project: EN IEC 62641:2022 - Conductors for overhead lines - Aluminium and aluminium alloy wires for concentric lay stranded conductors

Relations

• Replaces: SIST EN 60889:2002 - Hard-drawn aluminium wire for overhead line conductors
• Effective Date: 07-Jun-2022
• Replaces: SIST EN 50183:2000 - Conductors for overhead lines - Aluminium-magnesium-silicon alloy wires
• Effective Date: 07-Jun-2022
• Refers: SIST ISO 7801:1996 - Metallic materials -- Wire -- Reverse bend test
• Effective Date: 10-Feb-2026
• Refers: SIST ISO 7802:2015 - Metallic materials - Wire - Wrapping test
• Effective Date: 10-Feb-2026
• Refers: SIST EN 772-4:1999 - Methods of test for masonry units - Part 4: Determination of real and bulk density and of total and open porosity for natural stone masonry units
• Effective Date: 09-Feb-2026
• Refers: SIST EN ISO 6892-1:2020 - Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2019)
• Effective Date: 09-Feb-2026
• Referred By: SIST EN IEC 60794-4-30:2021 - Optical fibre cables - Part 4-30: Aerial optical cables along electrical power lines - Family specification for optical phase conductor (OPPC) optical cables (IEC 60794-4-30:2021)
• Effective Date: 03-Feb-2026
• Referred By: SIST EN 60794-4-10:2015 - Optical fibre cables - Part 4-10: Family specification - Optical ground wires (OPGW) along electrical power lines (IEC 60794-4-10:2014)
• Effective Date: 03-Feb-2026
• Referred By: SIST EN IEC 60794-4:2018 - Optical fibre cables - Part 4: Sectional specification - Aerial optical cables along electrical power lines (IEC 60794-4:2018)
• Effective Date: 03-Feb-2026
• Referred By: SIST EN 50119:2009 - Railway applications - Fixed installations - Electric traction overhead contact lines
• Effective Date: 03-Feb-2026
• Amended By: SIST EN IEC 62641:2022/A11:2022 - Conductors for overhead lines - Aluminium and aluminium alloy wires for concentric lay stranded conductors
• Effective Date: 23-Jun-2022

Overview

EN IEC 62641:2022 (CLC adoption of IEC 62641:2022) is the international / European standard that specifies the mechanical and electrical properties of round and formed aluminium and aluminium‑alloy wires used to make concentric lay stranded conductors for overhead power lines. It applies to wires up to the equivalent diameters given in the standard’s tables and covers conventional aluminium alloys and thermal‑resistant alloys used in overhead conductor manufacture. This edition is a technical revision that consolidates and replaces earlier IEC/EN documents.

Key topics and requirements

• Materials and designations - standardized alloy groups and designations are listed for calculation and specification purposes (see Table 1 in the standard). New aluminium alloys (A4, AL4, AL5) are included in this edition.
• Scope limits - applicability defined by equivalent diameter limits (refer to Tables 3 and 4 for aluminium and thermal‑resistant alloys).
• Mechanical and electrical properties - minimum requirements and test criteria for tensile strength, elongation, electrical resistivity and related properties used in conductor design.
• Test methods and sampling - standardized tests for: appearance, wire diameter, tensile strength, elongation, wrapping, reverse bending, electrical resistivity and thermal‑resistance assessment. Test methods from prior standards have been merged and harmonized.
• Quality and acceptance - sampling rates, acceptance/rejection rules, certification of compliance, and guidance on joints and securing formed wires.
• Documentation - tables and annexes define calculation values, diameter tolerances, bending parameters and thermal‑resistance testing references.

Applications and users

This standard is essential for:

• Conductor manufacturers specifying and producing aluminium/aluminium‑alloy wires for concentric lay stranded conductors.
• Utilities and transmission planners ensuring conductor materials meet mechanical, electrical and thermal performance needed for overhead power transmission.
• Engineers and designers who calculate conductor properties (mechanical strength, current carrying capacity, thermal limits) using standardized material values.
• Test laboratories and quality managers performing acceptance testing and compliance certification.
• Procurement and regulatory bodies that reference EN IEC 62641:2022 in specifications and tenders for overhead conductor supply.

Practical use cases include material selection for new overhead lines, replacement conductor specification, and conformity testing during production.

Related standards

• Supersedes / replaces: earlier IEC/EN documents such as IEC 60104, IEC 60121, IEC 60889, IEC 62004; and European standards EN 62004:2009, EN 50183:2000, EN 60889:1997.
• Normative references used in EN IEC 62641:2022 include IEC 60468, IEC TR 61597, ISO 6892‑1, ISO 7801, and ISO 7802.

Keywords: EN IEC 62641:2022, aluminium wires, overhead conductors, concentric lay stranded conductors, mechanical and electrical properties, thermal‑resistant alloys, conductor testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2023
Nadomešča:
SIST EN 50183:2000
SIST EN 60889:2002
Vodniki za nadzemne vode - Aluminijaste žice in žice iz aluminijeve zlitine za
koncentrične pletene vodnike (IEC 62641:2022)
Conductors for overhead lines - Aluminium and aluminium alloy wires for concentric lay
stranded conductors (IEC 62641:2022)
Leiter für Freileitungen - Drähte aus Aluminium und Aluminiumlegierung für Leiter aus
konzentrisch verseilten Drähten (IEC 62641:2022)
Conducteurs pour lignes aériennes - Fils d'aluminium et en alliage d'aluminium pour
conducteurs toronnés à couches concentriques (IEC 62641:2022)
Ta slovenski standard je istoveten z: EN IEC 62641:2022
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
77.150.10 Aluminijski izdelki Aluminium products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62641

NORME EUROPÉENNE
EUROPÄISCHE NORM May 2022
ICS 29.060.01; 29.240.20 Supersedes EN 62004:2009, EN 50183:2000,
EN 60889:1997
English Version
Conductors for overhead lines - Aluminium and aluminium alloy
wires for concentric lay stranded conductors
(IEC 62641:2022)
Conducteurs pour lignes aériennes - Fils d'aluminium et en Leiter für Freileitungen - Drähte aus Aluminium und
alliage d'aluminium pour conducteurs toronnés à couches Aluminiumlegierung für Leiter aus konzentrisch verseilten
concentriques Drähten
(IEC 62641:2022) (IEC 62641:2022)
This European Standard was approved by CENELEC on 2022-04-08. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62641:2022 E
European foreword
The text of document 7/713/FDIS, future edition 1 of IEC 62641, prepared by IEC/TC 7 "Overhead
electrical conductors" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN IEC 62641:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-04-11
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-04-11
document have to be withdrawn
This document supersedes EN 62004:2009, EN 50183:2000 and EN 60889:1997 and all of its
amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62641:2022 was approved by CENELEC as a European
Standard without any modification.

IEC 62641 ®
Edition 1.0 2022-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Conductors for overhead lines – Aluminium and aluminium alloy wires for

concentric lay stranded conductors

Conducteurs pour lignes aériennes – Fils d’aluminium et en alliage d’aluminium

pour conducteurs toronnés à couches concentriques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.01; 29.240.20 ISBN 978-2-8322-1080-6

– 2 – IEC 62641:2022 © IEC 2022
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Material . 8
5 Joints . 8
6 Tests . 8
6.1 General . 8
6.2 Place of testing . 8
6.3 Sampling rate . 9
6.4 Test methods . 9
6.4.1 Appearance . 9
6.4.2 Wire diameter . 9
6.4.3 Tensile strength . 9
6.4.4 Elongation . 9
6.4.5 Wrapping . 10
6.4.6 Bending . 10
6.4.7 Electrical resistivity . 10
6.4.8 Thermal resistance . 10
6.5 Acceptance and rejection . 11
6.6 Certificate of compliance . 11
7 Length and tolerance on length. 11
Annex A (normative) Methods of securing formed wires . 14
Annex B (informative) Thermal-resistant property . 15
B.1 Thermal-resistant properties . 15
B.2 Explanation of the Arrhenius plot . 15
B.3 Continuous operation temperature . 16
B.4 Duration and heating temperature . 16
Bibliography . 17

Figure A.1 – Methods of securing formed wires . 14
Figure B.1 – Arrhenius plot (residual strength 90 %) . 15

a b
Table 1 – Designation and properties for calculation purposes . 11
Table 2 – Tolerance on wire diameter . 12
Table 3 – Minimum mechanical properties for Ax and ALx wires . 12
Table 4 – Minimum mechanical properties for ATx wires . 13
Table 5 – Temperature and duration of heating . 13
Table 6 – Parameters for bending test of aluminium alloy wires . 13

IEC 62641:2022 © IEC 2022 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONDUCTORS FOR OVERHEAD LINES –
ALUMINIUM AND ALUMINIUM ALLOY WIRES
FOR CONCENTRIC LAY STRANDED CONDUCTORS

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.
IEC 62641 has been prepared by IEC technical committee 7: Overhead electrical conductors.
It is an International Standard.
This first edition cancels and replaces the second edition of IEC 60104 published in 1987, the
first edition of IEC 60121 published in 1960, the first edition of IEC 60889 published in 1987,
and the first edition of IEC 62004 published in 2007. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
editions of IEC 60104, IEC 60121, IEC 60889 and IEC 62004:
a) designations of aluminium alloys are modified;
b) aluminium alloys A4, AL4 and AL5 are added;
c) wire diameter ranges for indicating mechanical properties are modified and extended;
d) test methods are merged.
– 4 – IEC 62641:2022 © IEC 2022
The text of this International Standard is based on the following documents:
Draft Report on voting
7/713/FDIS 7/721/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/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,
• replaced by a revised edition, or
• amended.
IEC 62641:2022 © IEC 2022 – 5 –
INTRODUCTION
The purpose of this document is threefold.
First, it is to group together similar wire materials that share the same general characteristics
and therefore the same test procedures and requirements. These wires are existing aluminium
and aluminium alloy wires from IEC 60104, IEC 60121, IEC 60889 and IEC 62004 as well as
from EN 50183.
Secondly, this format allows an easier standard maintenance, as multiple wire materials are
covered by a single document instead of separate documents.
Thirdly, this document indicates the most used wire materials worldwide, based on the
cooperation agreement between IEC and CENELEC, an IEC questionnaire in 2017 (7/672/Q,
Annex A) and a CENELEC questionnaire (7X/SEC0056/CC). The standardized materials form
a good basis which can be extended by others used in regions and countries.

– 6 – IEC 62641:2022 © IEC 2022
CONDUCTORS FOR OVERHEAD LINES –
ALUMINIUM AND ALUMINIUM ALLOY WIRES
FOR CONCENTRIC LAY STRANDED CONDUCTORS

1 Scope
This document specifies the mechanical and electrical properties of round and formed wires for
equivalent diameters up to the values according to Table 3 for aluminium and aluminium alloys
and according to Table 4 for thermal resistant alloys. This document is applicable to aluminium
and aluminium alloy wires for the manufacture of concentric lay overhead electrical stranded
conductors with or without gap(s) for power transmission purposes.
The various materials and their designations are listed in Table 1. For calculation purposes, the
values listed in Table 1 are used.
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 (all parts), International Electrotechnical Vocabulary (IEV) (available at
www.electropedia.org)
IEC 60468, Method of measurement of resistivity of metallic materials
IEC TR 61597, Overhead electrical conductors – Calculation methods for stranded bare
conductors
ISO 6892-1, Metallic materials – Tensile testing – Part 1: Method of test at room temperature
ISO 7801, Metallic materials – Wires – Reverse bend test
ISO 7802, Metallic materials – Wires – Wrapping test
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050 (all parts) 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
...

SL O V EN S K I
S T ANDAR D
januar 2023
Vodniki za nadzemne vode – Aluminijaste žice in žice iz aluminijeve zlitine
za koncentrične pletene vodnike (IEC 62641:2022)

Conductors for overhead lines – Aluminium and aluminium alloy wires for
concentric lay stranded conductors (IEC 62641:2022)

Leiter für Freileitungen – Drähte aus Aluminium und Aluminiumlegierung für
Leiter aus konzentrisch verseilten Drähten (IEC 62641:2022)

Conducteurs pour lignes aériennes – Fils d'aluminium et en alliage d'aluminium
pour conducteurs toronnés à couches concentriques (IEC 62641:2022)

Referenčna oznaka
ICS 29.240.10;77.150.10 SIST EN IEC 62641:2023 (sl)

Nadaljevanje na straneh II ter od 2 do 18

© 2026-06. Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN IEC 62641 : 2023
NACIONALNI UVOD
Standard SIST EN IEC 62641:2023 (sl), Vodniki za nadzemne vode – Aluminijaste žice in žice iz
aluminijeve zlitine za koncentrične pletene vodnike (IEC 62641:2022), 2023, ima status slovenskega
standarda in je istoveten evropskemu standardu, EN IEC 62641:2022 (en), Conductors for overhead
lines – Aluminium and aluminium alloy wires for concentric lay stranded conductors (IEC 62641:2022).

NACIONALNI PREDGOVOR
Evropski standard IEC 62641:2023 je pripravil tehnični odbor Mednarodne elektrotehniške komisije
IEC/TC 7 Vodniki za nadzemne vode, potrdil pa tehnični odbor Evropskega komiteja za
standardizacijo v elektrotehniki CLC/TC 7X Vodniki za nadzemne vode, katerega sekretariat vodi
DKE. Slovenski standard SIST EN IEC 62641:2023 je prevod evropskega standarda EN IEC
62641:2022. V primeru spora glede besedila slovenskega prevoda v tem standardu je odločilen izvirni
evropski standard v angleškem jeziku. Slovensko izdajo standarda je pripravil tehnični odbor SIST/TC
NVV Nadzemni vodi in vodniki.
Odločitev za privzem tega standarda je 22. novembra 2022 sprejel tehnični odbor SIST/TC NVV
Nadzemni vodi.
ZVEZE Z NACIONALNIMI STANDARDI

S privzemom tega evropskega standarda veljajo za omejeni namen referenčnih standardov vsi
standardi, navedeni v izvirniku, razen tistih, ki so že sprejeti v nacionalno standardizacijo:

SIST IEC 60050 (vsi deli)  Mednarodni elektrotehniški slovar (dostopen na www.electropedia.org)

SIST IEC/TR3 61597 Vodniki za nadzemne vode – Izračuni za gole pletene vrvi

SIST ISO 7801 Kovinski materiali – Žica – Preskus z izmeničnim upogibanjem

SIST ISO 7802 Kovinski materiali – Žica – Vzvojni preskus

OSNOVA ZA IZDAJO STANDARDA
̶ privzem standarda EN IEC 62641:2023

OPOMBE
̶ Povsod, kjer se v besedilu standarda uporablja izraz "evropski standard" ali "mednarodni"
standard, v SIST EN IEC 62541:2023 to pomeni "slovenski standard".

̶ Nacionalni uvod in nacionalni predgovor nista sestavni del standarda.

̶ Ta nacionalni dokument je istoveten EN IEC 62641:2023 in je objavljen z dovoljenjem

CEN/CENELEC
Rue de la Science 23
B-1040 Bruselj
̶ This national document is identical with EN IEC 62641:2023 and is published with the permission
of
CEN /CENELEC
Rue de la Science 23
B-1040 Brussels
II
EVROPSKI STANDARD  EN IEC 62641
EUROPEAN STANDARD
NORME EUROPÉENNE
maj 2022
EUROPÄISCHE NORM
ICS 27.160
Slovenska izdaja
Vodniki za nadzemne vode – Aluminijaste žice in žice iz aluminijeve
zlitine za koncentrične pletene vodnike (IEC 62641:2022)

Conductors for overhead lines – Conducteurs pour lignes aériennes Leiter für Freileitungen – Drähte
Aluminium and aluminium alloy – Fils d'aluminium et en alliage aus Aluminium und
wires for concentric lay stranded d'aluminium pour conducteurs Aluminiumlegierung für Leiter aus
conductors (IEC 62641:2022) toronnés à couches concentriques konzentrisch verseilten Drähten
(IEC 62641:2022) (IEC 62641:2022)

Ta evropski standard je CENELEC sprejel 8. aprila 2022. Člani CENELEC morajo izpolnjevati notranje
predpise CEN/CENELEC, ki določajo pogoje, pod katerimi dobi ta evropski standard status nacionalnega
standarda brez kakršnihkoli sprememb.

Najnovejši seznami in bibliografski podatki v zvezi s takšnimi nacionalnimi standardi se na zahtevo lahko
dobijo pri Upravnem centru CEN-CENELEC ali kateremkoli članu CENELEC.

Ta evropski standard obstaja v treh uradnih izdajah (angleški, francoski, nemški). Izdaje v katerihkoli drugih
jezikih, ki jih člani CENELEC na lastno odgovornost prevedejo in izdajo ter prijavijo pri Upravnem centru CEN-
CENELEC, veljajo kot uradne izdaje.

Člani CENELEC so nacionalni elektrotehniški komiteji Avstrije, Belgije, Bolgarije, Hrvaške, Cipra, Češke
republike, Danske, Estonije, Finske, Francije, Nemčije, Grčije, Madžarske, Islandije, Irske, Italije, Latvije, Litve,
Luksemburga, Malte, Nizozemske, Norveške, Poljske, Portugalske, Republike Severne Makedonije,
Romunije, Srbije, Slovaške, Slovenije, Španije, Švedske, Švice, Turčije in Združenega kraljestva.

CENELEC
Evropski komite za standardizacijo v elektrotehniki
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Upravni center CEN-CENELEC: Rue de la Science 23, B-1040 Bruselj

© 2022 CEN/CENELEC Lastnice avtorskih pravic so vse države članice CENELEC. Ref. št. EN IEC 62641:2023 E

SIST EN IEC 62641 : 2023
Evropski predgovor
Besedilo dokumenta 7/713/FDIS, prihodnje 1. izdaje standarda IEC 62641, ki ga je pripravil tehnični
odbor IEC/TC 7 "Nadzemni električni vodi", je bilo predloženo v vzporedno glasovanje IEC-CENELEC
in ga je CENELEC sprejel kot EN IEC 62641:2022.

Določena sta naslednja datuma:

‒ zadnji datum, do katerega mora dobiti ta dokument (dop) 2023-04-11
status nacionalnega standarda bodisi z objavo
istovetnega besedila ali razglasitvijo
‒ zadnji datum, do katerega je treba razveljaviti (dow) 2025-04-11
nacionalne standarde, ki so v nasprotju s tem
dokumentom
Ta dokument nadomešča standarde EN 62004:2009, EN 50183:2000 in EN 60889:1997 ter vsa
njihova dopolnila in popravke (če obstajajo).

Opozoriti je treba na možnost, da bi lahko bil kateri od elementov tega dokumenta predmet patentnih
pravic. CENELEC ni odgovornen za identificiranje nobene od teh patentnih pravic.

Vse povratne informacije in vprašanja o tem dokumentu je treba nasloviti na nacionalni odbor
uporabnikov. Celoten seznam teh organov je na voljo na spletni strani CENELEC.

Razglasitvena objava
CENELEC je potrdil besedilo mednarodnega standarda IEC 62641:2022 kot evropski standard brez
kakršnihkoli sprememb.
SIST EN IEC 62641 : 2023
Vsebina
PREDGOVOR . 4
UVOD . 6
1 Področje uporabe . 7
2 Zveze s standardi . 7
3 Izrazi in definicije . 7
4 Material . 8
5 Spoji . 9
6 Preskusi . 9
6.1 Splošno . 9
6.2 Kraj preskušanja . 9
6.3 Pogostost vzorčenja . 9
6.4 Preskusne metode . 9
6.4.1 Videz . 9
6.4.2 Premer žice . 9
6.4.3 Natezna trdnost .10
6.4.4 Raztezek .10
6.4.5 Ovijanje .10
6.4.6 Upogibanje .10
6.4.7 Električna specifična upornost .11
6.4.8 Toplotna odpornost .11
6.5 Sprejem in zavrnitev .11
6.6 Potrdilo o skladnosti.11
7 Dolžina in toleranca dolžine .12
Dodatek A (normativni) Metode pritrjevanja oblikovanih žic.15
Dodatek B (informativni) Lastnost toplotne odpornosti .16
B.1 Lastnost toplotne odpornosti .16
B.2 Razlaga Arrheniusovega grafa .16
B.3 Temperatura neprekinjenega delovanja .17
B.4 Trajanje in temperatura segrevanja .17
Viri in literatura .18

1Slika A.1: Metode pritrjevanja oblikovanih žic .15
2Slika B.1: Arrheniusov graf (preostala trdnost 90 %) .16

a b
1Preglednica 1 : Oznaka in lastnosti za namene izračuna .12
2Preglednica 2: Toleranca premera žice .12
3Preglednica 3: Minimalne mehanske lastnosti za žice Ax in ALx .13
1Preglednica 4: Minimalne mehanske lastnosti za žice ATx .14
4Preglednica 5: Temperatura in trajanje segrevanja za OBL .14
5Preglednica 6: Parametri za upogibni preskus žic iz aluminijeve zlitine .14
SIST EN IEC 62641 : 2023
MEDNARODNA ELEKTROTEHNIŠKA KOMISIJA

VODNIKI ZA NADZEMNE VODE – ALUMINIJASTE ŽICE IN ŽICE IZ
ALUMINIJEVE ZLITINE ZA KONCENTRIČNE PLETENE VODNIKE

PREDGOVOR
1) Mednarodna elektrotehniška komisija (IEC) je svetovna organizacija za standardizacijo, ki
združuje vse nacionalne elektrotehniškne komiteje (nacionalni komiteji IEC). Cilj IEC je
pospeševati mednarodno sodelovanje v vseh vprašanjih standardizacije s področja
elektrotehnike in elektronike. V ta namen poleg drugih dejavnosti izdaja mednarodne standarde,
tehnične specifikacije, tehnična poročila, javno dostopne specifikacije (PAS) in vodila (v
nadaljevanju: publikacije IEC). Za njihovo pripravo so odgovorni tehnični odbori; vsak nacionalni
komite IEC, ki ga zanima obravnavana tema, lahko sodeluje v tem pripravljalnem delu. Prav tako
lahko v pripravi sodelujejo mednarodne, vladne in nevladne organizacije, ki so povezane z IEC.
IEC deluje v tesni povezavi z Mednarodno organizacijo za standardizacijo (ISO) skladno s
pogoji, določenimi v sporazumu med obema organizacijama.

2) Uradne odločitve ali sporazumi IEC o tehničnih vprašanjih, pripravljeni v tehniških odborih, kjer
so prisotni vsi nacionalni komiteji, ki jih tema zanima, izražajo, kolikor je mogoče, mednarodno
soglasje o obravnavani temi.
3) Publikacije IEC imajo obliko priporočil za mednarodno uporabo in jih kot takšne sprejmejo
nacionalni komiteji IEC. Čeprav IEC skuša po najboljših močeh zagotavljati točnost tehničnih
vsebin v publikacijah IEC, IEC ne more biti odgovoren za način njihove uporabe ali za
kakršnokoli napačno razlago katerihkoli končnih uporabnikov.

4) Za pospeševanje mednarodnega poenotenja so se nacionalni komiteji IEC zavezali, da bodo v
svojih nacionalnih in regionalnih publikacijah čim pregledneje uporabljati publikacije IEC. Vsako
odstopanje med katerokoli publikacijo IEC in ustrezno nacionalno ali regionalno publikacijo je
treba to v slednji jasno označiti.

5) IEC sam ne izvaja potrjevanja skladnosti. Storitve ugotavljanja skladnosti in na nekaterih
področjih dostop do oznak skladnosti IEC zagotavljajo neodvisni certifikacijski organi. IEC ne
prevzema odgovornosti za nobeno od storitev, ki jih izvajajo neodvisni certifikacijski organi.

6) Vsi uporabniki naj si zagotovijo, da imajo zadnjo izdajo te publikacije.

7) IEC ali njegovi direktorji, zaposleni, uslužbenci ali agenti, vključno s posameznimi izvedenci ter
člani njegovih tehničnih odborov in nacionalnih komitejev IEC, ne prevzemajo nobene
odgovornosti za kakršnokoli osebno poškodbo, premoženjsko škodo ali katerokoli drugo škodo
kakršnekoli vrste, bodisi posredne ali neposredne, ali za stroške (vključno z odvetniškimi stroški)
in izdatke, nastale zaradi te publikacije, njene uporabe ali zanašanja na to publikacijo IEC ali
katerokoli drugo publikacijo IEC.

8) Opozoriti je treba na zveze s standardi, navedene v tej publikaciji. Uporaba navedenih publikacij
je nujna za pravilno uporabo te publikacije.

9) Opozoriti je treba na možnost, da bi lahko bil kateri od elementov te publikacije IEC predmet
patentnih pravic. IEC ni odgovoren za identificiranje nobene od teh patentnih pravic.

Mednarodni standard IEC 62641 je pripravil tehniški odbor IEC 7 Nadzemni električni vodi.

SIST EN IEC 62641 : 2023
Ta prva izdaja razveljavlja in nadomešča drugo izdajo standarda IEC 60104, objavljeno leta 1987,
prvo izdajo standarda IEC 60121, objavljeno leta 1960, prvo izdajo standarda IEC 60889, objavljeno
leta 1987, in prvo izdajo standarda IEC 62004, objavljeno leta 2007. Ta izdaja predstavlja tehnično
revizijo.
Ta izdaja vključuje naslednje pomembne tehnične spremembe glede na prejšnje izdaje standardov
IEC 60104, IEC 60121, IEC 60889 in IEC 62004:

a) oznake aluminijevih zlitin so spremenjene;

b) aluminijeve zlitine A4, AL4 in AL5 so dodane;

c) območja premerov žice za označevanje mehanskih lastnosti so spremenjena in razširjena;

d) preskusne metode so združene.

Besedilo tega mednarodnega standarda temelji na naslednjih dokumentih:

Osnutek Poročilo o glasovanju
7/713/FDIS 7/721/RVD
Vse informacije o glasovanju za potrditev tega standarda so na voljo v poročilu o glasovanju,
navedenem v zgornji preglednici.

Jezik, uporabljen za razvoj tega mednarodnega standarda, je angleščina.

Ta dokument je bil pripravljen v skladu z 2. delom Direktiv ISO/IEC in razvit v skladu s 1. delom
Direktiv ISO/IEC in direktivami ISO/IEC, dodatkom IEC, ki je na voljo na
www.iec.ch/members_experts/refdocs. Glavne vrste dokumentov, ki jih je razvil IEC, so podrobneje
opisane na www.iec.ch/standardsdev/publications.

Odbor je sklenil, da bo vsebina tega dokumenta ostala nespremenjena do datuma stabilnosti,
navedenega na spletni strani IEC pod webstore.iec.ch v podatkih, povezanih z določenim
dokumentom. Na ta datum bo dokument

‒ ponovno potrjen,
‒ razveljavljen,
‒ zamenjan z novo izdajo ali
‒ dopolnjen.
SIST EN IEC 62641 : 2023
UVOD
Prvič, gre za združevanje podobnih žičnih materialov v skupine, ki imajo enake splošne značilnosti in
zato enake preskusne postopke in zahteve. Te žice so obstoječe aluminijaste žice in žice iz
aluminijevih zlitin iz IEC 60104, IEC 60121, IEC 60889 in IEC 62004 ter iz EN 50183.

Drugič, ta oblika dokumenta omogoča lažje vzdrževanje standardov, saj je več žičnih materialov
zajetih v enem samem dokumentu, namesto v več ločenih dokumentih.

Tretjič, ta dokument na podlagi sporazuma o sodelovanju med IEC in CENELEC, vprašalnika IEC iz
leta 2017 (7/672/Q, dodatek A) in vprašalnika CENELEC (7X/SEC0056/CC) navaja najpogosteje
uporabljene žične materiale po vsem svetu. Standardizirani materiali tvorijo dobro podlago, ki jo je
mogoče razširiti z drugimi, ki se uporabljajo v regijah in državah.

SIST EN IEC 62641 : 2023
VODNIKI ZA NADZEMNE VODE – ALUMINIJASTE ŽICE IN ŽICE IZ
ALUMINIJEVE ZLITINE ZA KONCENTRIČNE PLETENE VODNIKE

1 Področje uporabe
Ta dokument določa mehanske in električne lastnosti okroglih in oblikovanih žic za enakovredne
premere do vrednosti, navedene v skladu s preglednico 3 za aluminij in aluminijeve zlitine ter v skladu
s preglednico 4 za toplotno odporne zlitine. Ta dokument se uporablja za aluminijaste žice in žice iz
aluminijeve zlitine za proizvodnjo koncentrično pletenih nadzemnih električnih vodnikov z vrzelmi ali
brez njih, namenjenih za prenos električne energije.
...