EN IEC 62561-4:2023

SLOVENSKI STANDARD
01-januar-2024
Nadomešča:
SIST EN 62561-4:2018
Elementi sistema za zaščito pred strelo (LPSC) - 4. del: Zahteve za pritrdilne
elemente (IEC 62561-4:2023)
Lightning protection system components (LPSC) - Part 4: Requirements for conductor
fasteners (IEC 62561-4:2023)
Blitzschutzsystembauteile (LPSC) - Teil 4: Anforderungen an Leitungshalter (IEC 62561-
4:2023)
Composants de systèmes de protection contre la foudre (CSPF) - Partie 4: Exigences
pour les fixations de conducteur (IEC 62561-4:2023)
Ta slovenski standard je istoveten z: EN IEC 62561-4:2023
ICS:
91.120.40 Zaščita pred strelo Lightning protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62561-4

NORME EUROPÉENNE
EUROPÄISCHE NORM November 2023
ICS 29.020; 91.120.40 Supersedes EN 62561-4:2017
English Version
Lightning protection system components (LPSC) - Part 4:
Requirements for conductor fasteners
(IEC 62561-4:2023)
Composants des systèmes de protection contre la foudre Blitzschutzsystembauteile (LPSC) - Teil 4: Anforderungen
(CSPF) - Partie 4: Exigences pour les fixations de an Leitungshalter
conducteurs (IEC 62561-4:2023)
(IEC 62561-4:2023)
This European Standard was approved by CENELEC on 2023-11-17. 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,
Türkiye 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62561-4:2023 E

European foreword
The text of document 81/734/FDIS, future edition 3 of IEC 62561-4, prepared by IEC/TC 81 "Lightning
protection" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-08-17
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-05-24
document have to be withdrawn
This document supersedes EN 62561-4:2017 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 62561-4:2023 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 62305-1 NOTE Approved as EN 62305-1
IEC 62305-4 NOTE Approved as EN 62305-4
IEC 62561-4:2017 NOTE Approved as EN 62561-4:2017 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-52 2017 Environmental testing - Part 2-52: Tests - EN IEC 60068-2-52 2018
Test Kb: Salt mist, cyclic (sodium chloride
solution)
IEC 60068-2-75 2014 Environmental testing - Part 2-75: Tests - EN 60068-2-75 2014
Test Eh: Hammer tests
IEC 62305-3 (mod) 2010 Protection against lightning - Part 3: EN 62305-3 2011
Physical damage to structures and life
hazard
IEC 62561-1 - Lightning protection system components EN IEC 62561-1 -
(LPSC) - Part 1: Requirements for
connection components
ISO 4892-2 - Plastics - Methods of exposure to laboratory EN ISO 4892-2 -
light sources - Part 2: Xenon-arc lamps
ISO 4892-3 2016 Plastics - Methods of exposure to laboratory EN ISO 4892-3 2016
light sources - Part 3: Fluorescent UV
lamps
ISO 4892-4 - Plastics - Methods of exposure to laboratory - -
light sources - Part 4: Open-flame carbon-
arc lamps
ISO 6957 1988 Copper alloys; ammonia test for stress - -
corrosion resistance
ISO 22479 2019 Corrosion of metals and alloys – Sulfur EN ISO 22479 2022
dioxide test in a humid atmosphere (fixed
gas method)
IEC 62561-4 ®
Edition 3.0 2023-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Lightning protection system components (LPSC) –

Part 4: Requirements for conductor fasteners

Composants des systèmes de protection contre la foudre (CSPF) –

Partie 4: Exigences pour les fixations de conducteurs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.020, 91.120.40 ISBN 978-2-8322-7614-3

– 2 – IEC 62561-4:2013 © IEC 2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Classification . 8
4.1 According to the material of the conductor fastener . 8
4.2 According to the fixing arrangement of the conductor within the conductor
fastener . 8
4.3 According to the conductor clamping arrangement . 8
5 Requirements . 8
5.1 General . 8
5.2 Environmental requirements . 9
5.2.1 Corrosion resistance . 9
5.2.2 Ultraviolet (UV) light resistance . 9
5.3 Mechanical strength . 9
5.3.1 Perpendicular and axial loads . 9
5.3.2 Impact tests . 9
5.4 Installation instructions . 9
5.5 Marking . 10
5.5.1 Content of marking . 10
5.5.2 Durability and legibility . 10
6 Tests . 10
6.1 General test conditions . 10
6.2 Preparation of the specimen . 11
6.3 Environmental influence test . 11
6.3.1 General . 11
6.3.2 Metallic . 11
6.3.3 Non-metallic . 12
6.3.4 Composite . 12
6.4 Resistance to mechanical effects . 13
6.4.1 Lateral load test . 13
6.4.2 Axial load test . 14
6.4.3 Impact test . 15
6.5 Installation instructions . 15
6.5.1 General conditions . 15
6.5.2 Acceptance criteria . 15
6.6 Marking test . 15
6.6.1 General test conditions . 15
6.6.2 Acceptance criteria . 15
6.7 Construction . 16
7 Electromagnetic compatibility (EMC) . 16
8 Structure and content of the test report . 16
8.1 General . 16
8.2 Report identification . 16
8.3 Specimen description . 17

IEC 62561-4:2013 © IEC 2023 – 3 –
8.4 Conductor . 17
8.5 Standards and references . 17
8.6 Test procedure . 17
8.7 Testing equipment, description . 17
8.8 Measuring instruments description . 17
8.9 Results and parameters recorded . 17
8.10 Statement of pass and fail . 18
Annex A (normative) Resistance to corrosion for metallic and composite conductor
fasteners . 19
A.1 General . 19
A.2 Salt mist treatment . 19
A.3 Humid sulphurous atmosphere treatment . 19
A.4 Ammonia atmosphere treatment. 19
Annex B (normative) Environmental test for non-metallic and composite conductor
fasteners – Resistance to ultraviolet light . 20
B.1 General . 20
B.2 Test . 20
B.3 First alternative test to Clause B.2 . 20
B.4 Second alternative test to Clause B.2 . 20
Annex C (normative) Applicability of previous tests . 21
Annex D (normative) Flow chart of tests for conductor fastener . 22
Bibliography . 23

Figure 1 – Basic arrangement of specimens . 12
Figure 2 – Basic arrangement of lateral load test . 13
Figure 3 – Typical arrangement for axial movement test . 14
Figure D.1 – Flowchart of tests for conductor fastener . 22

Table C.1 – Differences in the requirements for conductor fasteners complying with
IEC 62561‑4:2010 or 62561‑4:2017 . 21

– 4 – IEC 62561-4:2013 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIGHTNING PROTECTION SYSTEM COMPONENTS (LPSC) –

Part 4: Requirements for conductor fasteners

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.
IEC 62561-4 has been prepared by IEC technical committee 81: Lightning protection. It is an
International Standard.
This third edition cancels and replaces the second edition published in 2017. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) alignment with the latest edition of ISO IEC 60068-2-52:2017 relating to salt mist
atmosphere treatment;
b) alignment with the new edition of ISO 22479:2019 relating to humid sulphurous atmosphere
treatment;
c) new normative annex for the applicability of previous tests.

IEC 62561-4:2013 © IEC 2023 – 5 –
The text of this International Standard is based on the following documents:
Draft Report on voting
81/734/FDIS 81/740/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/publications.
A list of all the parts in the IEC 62561 series, published under the general title Lightning
protection system components (LPSC), can be found on the IEC website.
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.
– 6 – IEC 62561-4:2013 © IEC 2023
INTRODUCTION
This part of IEC 62561 deals with the requirements and tests for lightning protection system
components (LPSC), specifically conductor fasteners used for the installation of a lightning
protection system (LPS) designed and implemented in accordance with the IEC 62305 series.

IEC 62561-4:2013 © IEC 2023 – 7 –
LIGHTNING PROTECTION SYSTEM COMPONENTS (LPSC) –

Part 4: Requirements for conductor fasteners

1 Scope
This part of IEC 62561 deals with the requirements and tests for metallic and non-metallic
conductor fasteners that are used to retain and support the air-termination, down-conductor and
earth-termination systems.
This document does not cover the fixing of conductor fasteners to the fabric of structures due
to the vast number and types used in modern day construction.
Testing of components for an explosive atmosphere is not covered by this document. Extra
requirements for the components can be necessary for LSCs intended for use in hazardous
atmospheres.
NOTE In CENELEC member countries, testing requirements of components for explosive atmospheres are specified
in CLC/TS 50703-2.
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 60068-2-52:2017, Environmental testing – Part 2-52: Tests – Test Kb: Salt mist, cyclic
(sodium chloride solution)
IEC 60068-2-75:2014, Environmental testing – Part 2: Tests – Test Eh: Hammer tests
IEC 62305-3:2010, Protection against lightning – Part 3: Physical damage to structures and life
hazard
IEC 62561-1, Lightning protection system components (LPSC) – Part 1: Requirements for
connection components
ISO 4892-2, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon – arc
lamps
ISO 4892-3:2016, Plastics – Methods of exposure to laboratory light sources – Part 3:
Fluorescent UV lamps
ISO 4892-4, Plastics – Methods of exposure to laboratory light sources – Part 4: Open-flame
carbon-arc lamps
ISO 6957:1988, Copper alloys – Ammonia test for stress corrosion resistance
ISO 22479:2019, Corrosion of metals and alloys – Sulfur dioxide test in a humid atmosphere
(fixed gas method)
– 8 – IEC 62561-4:2013 © IEC 2023
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
conductor fastener
metallic, non-metallic or composite component designed to retain and support the air-
termination, down-conductor and earth-termination systems, installed at intervals along the
length of the conductors
3.2
composite fastener
mixture of metallic and non-metallic materials, for example plastic
3.3
type test
test made before supplying a type of material covered by IEC 62561-4 on a general commercial
basis, in order to demonstrate satisfactory performance characteristics to meet the intended
application
4 Classification
4.1 According to the material of the conductor fastener
a) metallic (e.g. hot dip galvanized steel, copper, aluminium, stainless steel);
b) non-metallic (e.g. PVC, plastics);
c) composite (combination of metal and non-metallic).
If a metallic conductor fastener is used for bonding of two metallic parts of the external LPS it
becomes a connection component and shall comply with testing requirements in accordance
with IEC 62561-1.
4.2 According to the fixing arrangement of the conductor within the conductor
fastener
a) with screws;
b) without screws (e.g. clips, springs).
4.3 According to the conductor clamping arrangement
a) conductor fasteners that are designed to clamp the conductor;
b) conductor fasteners that are designed to clamp but allow axial movement of the conductor.
5 Requirements
5.1 General
The conductor fastener shall carry out its function of clamping the conductor in an acceptable
and safe manner when subjected to mechanical influences, lightning discharge stress and
environmental influences.
IEC 62561-4:2013 © IEC 2023 – 9 –
Conductor fasteners shall comply with the tests given in Clause 6. The material of the conductor
fastener shall be compatible with the conductor it is fastening and the surface material onto
which it is mounted.
NOTE 1 Certain extreme environmental conditions make the choice of non-metallic conductor fasteners unsuitable.
Specific recommendations are provided by manufacturers as to their suitability in varying environments.
NOTE 2 Conductor fasteners are so designed and constructed that safe handling is ensured, that retention and
support for the conductor is provided, and that in normal use their performance is reliable and without danger to
persons and the surroundings.
5.2 Environmental requirements
5.2.1 Corrosion resistance
Metallic or composite conductor fasteners shall withstand corrosion effects.
Co
...