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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
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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
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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 /members_experts/refdocs. The main document types developed by IEC are
described in greater detail at /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
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