IEC 60652:2021

Overhead line structures - Loading tests

IEC 60652:2021 specifies the methods and procedures of testing supports for overhead lines. It applies to the testing of supports and structures of overhead lines. There is no restriction on the type of material used in the fabrication of the supports which may include, but not be limited to, metallic alloys, concrete, timber, laminated wood and composite materials. If required by the client, this document can also be applied to the testing of telecommunication supports, railway/tramway overhead electrification supports, electrical substation gantries, street lighting columns, wind turbine towers, ski-lift supports, etc. Tests on reduced scale models of supports are not covered by this document. This third edition cancels and replaces the second edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Title modified;
b) Added reference to CIGRE Brochure 399;
c) In Clause 7, added test limitation for wind speed and direction during testing;
d) In paragraph 10.5, added load increments for destruction tests;
e) In paragraph 10.7, added a requirement for an agreement between client and testing station when testing supports made of creep-sensitive materials;
f) In Clause 17, added requirements for sampling procedure to be provided in the test report.

Structures des lignes aériennes - Essais mécaniques

IEC 60652:2021 spécifie les méthodes et procédures d'essai pour les supports de lignes aériennes. Il s'applique aux essais des supports et structures des lignes aériennes. Aucune restriction ne s'applique au type de matériau utilisé pour la fabrication des supports qui peuvent, entre autres, être réalisés en alliages métalliques, en béton, en bois (éventuellement stratifié) et en matériaux composites. Si le client l'exige, le présent document peut également être appliqué dans le cadre d'essais concernant les supports de télécommunication, les supports d'électrification de lignes aériennes pour les chemins de fer/tramways, les portiques de postes électriques, les supports d'éclairage public et de signalisation, les mâts d'éoliennes, les supports de téléphériques, etc. Les essais réalisés sur modèles de supports à échelle réduite ne sont pas couverts par le présent document. Cette troisième édition annule et remplace la deuxième édition parue en 2002. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le titre a été modifié;
b) une référence à la brochure 399 du CIGRE a été ajoutée;
c) à l'Article 7, des limites d'essai ont été ajoutées pour la vitesse et la direction du vent lors des essais;
d) en 10.5, des incréments de charge ont été ajoutés pour les essais destructifs;
e) en 10.7, une exigence a été ajoutée aux essais de supports constitués de matériaux sensibles au fluage : celle-ci est soumise à l'accord entre la station d'essais et le client;
f) à l'Article 17, des exigences ont été ajoutées pour la procédure d'échantillonnage en vue d’étayer le rapport d'essai.

General Information

• Status: Published
• Publication Date: 29-Jul-2021
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: TC 11 - Overhead lines
• Drafting Committee: MT 1 - TC 11/MT 1
• Current Stage: PPUB - Publication issued
• Start Date: 30-Jul-2021
• Completion Date: 30-Jul-2021

Relations

• Revises: IEC 60652:2002 - Loading tests on overhead line structures
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60652 ®
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Loading Tests on Overhead line structures – Loading tests

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.

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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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(IEV) online.
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need further assistance, please contact the Customer Service
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IEC 60652 ®
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Loading Tests on Overhead line structures – Loading tests
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.20 ISBN 978-2-8322-4371-8
– 2 – IEC 60652:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 5
4 Categories of tests . 6
4.1 General . 6
4.2 Design tests . 6
4.3 Sample tests . 6
5 General test criteria . 7
6 Acceptability of test station . 7
7 Test specification . 7
8 Test programme . 8
9 Assembly of support . 9
10 Load application . 9
10.1 General . 9
10.2 Combined loads . 9
10.3 Precautions for load application . 9
10.4 Load levels . 9
10.5 Destruction tests . 10
10.6 Tolerances on applied loads . 10
10.7 Loading rate and holding period . 10
11 Measurements . 11
11.1 Load and angle measurements . 11
11.2 Deflection measurements . 11
11.3 Strain measurements . 11
12 Sequence of test loading cases . 11
13 Video documentation . 11
14 Acceptance criteria . 11
15 Premature failure . 12
15.1 Design tests . 12
15.2 Sample tests . 12
15.3 Replacement of components . 12
16 Material specification . 12
17 Test report. 13
18 Record and traceability . 13

Table 1 – Load tolerances . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOADING TESTS ON OVERHEAD LINE STRUCTURES – LOADING TESTS

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.
This redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 60652:2002. A vertical bar appears in the margin wherever a change has
been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 60652:2021 RLV © IEC 2021
IEC 60652 has been prepared by IEC technical committee 11: Overhead lines. It is an
International Standard.
This third edition cancels and replaces the second edition published in 2002. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Title modified;
b) Added reference to CIGRE Brochure 399;
c) In Clause 7, added test limitation for wind speed and direction during testing;
d) In paragraph 10.5, added load increments for destruction tests;
e) In paragraph 10.7, added a requirement for an agreement between client and testing station
when testing supports made of creep-sensitive materials;
f) In Clause 17, added requirements for sampling procedure to be provided in the test report.
The text of this International Standard is based on the following documents:
FDIS Report on voting
11/276/FDIS 11/277/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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

LOADING TESTS ON OVERHEAD LINE STRUCTURES – LOADING TESTS

1 Scope
This document codifies specifies the methods and procedures of testing supports for overhead
lines.
It applies to the testing of supports and structures of overhead lines for voltages above 45 kV;
it can also serve as reference to the testing of lower voltage supports.
There is no restriction on the type of material used in the fabrication of the supports which may
include, but not be limited to, metallic alloys, concrete, timber, laminated wood and composite
materials. If required by the client, this document may can also be applied to the testing of
telecommunication supports, railway/tramway overhead electrification supports, electrical
substation gantries, street lighting columns, wind turbine towers, ski-lift supports, etc.
Tests on reduced scale models of supports are not covered by this document.
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 60050-466:1990, International Electrotechnical Vocabulary (IEV) – Part 466: Overhead
li
...

IEC 60652 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Overhead line structures – Loading tests

Structures des lignes aériennes – Essais mécaniques

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
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
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Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
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If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: [e-mail].
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IEC 60652 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Overhead line structures – Loading tests

Structures des lignes aériennes – Essais mécaniques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.20 ISBN 978-2-8322-9958-6

– 2 – IEC 60652:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 5
4 Categories of tests . 6
4.1 General . 6
4.2 Design tests . 6
4.3 Sample tests . 6
5 General test criteria . 7
6 Acceptability of test station . 7
7 Test specification . 7
8 Test programme . 8
9 Assembly of support . 8
10 Load application . 9
10.1 General . 9
10.2 Combined loads . 9
10.3 Precautions for load application . 9
10.4 Load levels . 9
10.5 Destruction tests . 9
10.6 Tolerances on applied loads . 10
10.7 Loading rate and holding period . 10
11 Measurements . 10
11.1 Load and angle measurements . 10
11.2 Deflection measurements . 10
11.3 Strain measurements . 11
12 Sequence of test loading cases . 11
13 Video documentation . 11
14 Acceptance criteria . 11
15 Premature failure . 11
15.1 Design tests . 11
15.2 Sample tests . 11
15.3 Replacement of components . 12
16 Material specification . 12
17 Test report. 12
18 Record and traceability . 13

Table 1 – Load tolerances . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OVERHEAD LINE STRUCTURES – LOADING TESTS

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 60652 has been prepared by IEC technical committee 11: Overhead lines. It is an
International Standard.
This third edition cancels and replaces the second edition published in 2002. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Title modified;
b) Added reference to CIGRE Brochure 399;
c) In Clause 7, added test limitation for wind speed and direction during testing;
d) In paragraph 10.5, added load increments for destruction tests;
e) In paragraph 10.7, added a requirement for an agreement between client and testing station
when testing supports made of creep-sensitive materials;
f) In Clause 17, added requirements for sampling procedure to be provided in the test report.

– 4 – IEC 60652:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
11/276/FDIS 11/277/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
...