IEC 62561-4:2023

Lightning protection system components (LPSC) - Part 4: Requirements for conductor fasteners

IEC 62561-4:2023 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 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.

Composants des systèmes de protection contre la foudre (CSPF) - Partie 4: Exigences pour les fixations de conducteurs

L'IEC 62561-4:2023 traite des exigences et des essais pour les fixations métalliques et non métalliques de conducteurs utilisées pour maintenir et supporter les dispositifs de capture, les conducteurs de descente et les prises de terre. Cette troisième édition annule et remplace la deuxième édition parue en 2017. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) alignement sur la dernière édition de l'ISO IEC 60068-2-52:2017 concernant le traitement en atmosphère au brouillard salin;
b) alignement sur la nouvelle édition de l'ISO 22479:2019 concernant le traitement en atmosphère sulfureuse humide;
c) nouvelle annexe normative concernant l'applicabilité d'essais précédents.

General Information

• Status: Published
• Publication Date: 12-Oct-2023
• ICS: 29.020 - Electrical engineering in general
• ICS: 91.120.40 - Lightning protection
• Technical Committee: TC 81 - Lightning protection
• Drafting Committee: MT 14 - TC 81/MT 14
• Current Stage: PPUB - Publication issued
• Start Date: 10-Nov-2023
• Completion Date: 13-Oct-2023

Relations

• Revises: IEC 62561-4:2017 - Lightning protection system components (LPSC) - Part 4: Requirements for conductor fasteners
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62561-4 ®
Edition 3.0 2023-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Lightning protection system components (LPSC) –
Part 4: Requirements for conductor fasteners

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.: [phone]
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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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IEC 62561-4 ®
Edition 3.0 2023-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Lightning protection system components (LPSC) –
Part 4: Requirements for conductor fasteners
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.020, 91.120.40 ISBN 978-2-8322-7690-7

– 2 – IEC 62561-4:2013 RLV © IEC 2023

CONTENTS
FOREWORD . 4
INTRODUCTION . 2
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 . 9
5.1 General . 9
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 . 12
6.3.3 Non-metallic . 12
6.3.4 Composite . 13
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 . 16
6.5.1 General conditions . 17
6.5.2 Acceptance criteria . 17
6.6 Marking test . 17
6.6.1 General test conditions for tests . 17
6.6.2 Acceptance criteria . 17
6.7 Construction . 17
7 Electromagnetic compatibility (EMC) . 18
8 Structure and content of the test report . 18
8.1 General . 18
8.2 Report identification . 18
8.3 Specimen description . 19

IEC 62561-4:2013 RLV © IEC 2023 – 3 –

8.4 Conductor . 19
8.5 Standards and references . 19
8.6 Test procedure . 19
8.7 Testing equipment, description . 19
8.8 Measuring instruments description . 19
8.9 Results and parameters recorded . 19
8.10 Statement of pass/ and fail. 20
Annex A (normative) Environmental test Resistance to corrosion for metallic and
composite conductor fasteners . 21
A.1 General . 21
A.2 Salt mist treatment . 21
A.3 Humid sulphurous atmosphere treatment . 21
A.4 Ammonia atmosphere treatment. 21
Annex B (normative) Environmental test for non-metallic and composite conductor
fasteners – Resistance to ultraviolet light . 22
B.1 General . 22
B.2 Test . 22
B.3 First alternative test to Clause B.2 . 22
B.4 Second alternative test to Clause B.2 . 22
Annex C (normative) Applicability of previous tests . 23
Annex D (normative) Flow chart of tests for conductor fastener . 24
Bibliography . 27

Figure 1 – Basic arrangement of specimens . 12
Figure 2 – Basic arrangement of lateral load test . 14
Figure 3 – Typical arrangement for axial movement test . 15
Figure 4 – Impact test apparatus .
Figure D.1 – Flowchart of tests for conductor fastener . 26

Table C.1 – Differences in the requirements for conductor fasteners complying with
IEC 62561‑4:2010 or 62561‑4:2017 . 23

– 4 – IEC 62561-4:2013 RLV © IEC 2023

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIGHTNING PROTECTION SYSTEM COMPONENTS (LPSC) –

Part 4: Requirements for conductor fasteners

FOREWORD
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...

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
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.

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
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committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
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Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
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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 – Dif
...