SIST EN 62561-4:2018

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

IEC 62561-4:2017 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.
LPSC can also be suitable for use in hazardous atmospheres. There are therefore additional requirements when installing the components in such conditions.
This second edition cancels and replaces the first edition, published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- new detailed flow chart of the tests;
- in Annexes A and B, composite fasteners have been added.

Blitzschutzsystembauteile (LPSC) - Teil 4: Anforderungen an Leitungshalter

Composants de système de protection contre la foudre (CSPF) - Partie 4: Exigences pour les fixations de conducteur

L'IEC 62561-4:2017 spécifie les exigences et les 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.
Le présent document ne traite pas de la fixation de ces supports sur les structures d'édifice en raison du grand nombre de solutions modernes de construction.
Les CSPF peuvent aussi être employés dans des atmosphères dangereuses. Il existe donc des exigences supplémentaires pour installer les composants dans de telles conditions.
Cette deuxième édition annule et remplace la première édition publiée en 2010. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- nouveau logigramme détaillé des essais;
- dans les Annexes A et B, ajout des fixations en composite.

Elementi sistema za zaščito pred strelo (LPSC) - 4. del: Zahteve za pritrdilne elemente

Ta del standarda IEC 62561 obravnava zahteve in preskuse za kovinske ter nekovinske pritrditve vodnikov, ki se uporabljajo za vzdrževanje in podporo lovilnega, odvodnega ter ozemljitvenega sistema.
Ta dokument ne zajema pritrditve vodnikov na material zgradb zaradi velikega števila in vrst, ki se danes uporabljajo v gradbeništvu.
Elementi za zaščito pred strelo (LPSC) so lahko primerni tudi za uporabo v nevarnih ozračjih. Zaradi tega glede namestitve sestavnih delov v takih pogojih obstajajo dodatne zahteve.

General Information

• Status: Published
• Publication Date: 28-Jan-2018
• ICS: 91.120.40 - Lightning protection
• Technical Committee: STZ - Lightning protection
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 15-Jan-2018
• Due Date: 22-Mar-2018
• Completion Date: 29-Jan-2018
• Ref Project: EN 62561-4:2017 - Lightning protection system components (LPSC) - Part 4: Requirements for conductor fasteners

Relations

• Replaces: SIST EN 62561-4:2011 - Requirements for Lightning Protection System Components (LPSC) - Part 4: Requirements for fasteners
• Effective Date: 01-Feb-2018
• Replaced By: SIST EN IEC 62561-4:2024 - Lightning protection system components (LPSC) - Part 4: Requirements for conductor fasteners (IEC 62561-4:2023)
• Effective Date: 28-Sep-2021

Overview

EN 62561-4:2017 (identical to IEC 62561-4:2017) sets requirements and test methods for metallic, non‑metallic and composite conductor fasteners used in lightning protection system components (LPSC). It covers fasteners that retain and support the air‑termination, down‑conductor and earth‑termination systems, and includes environmental, mechanical and marking requirements. This second edition (2017) replaces the 2011 edition and introduces a detailed test flow chart and formal inclusion of composite fasteners.

Key topics and technical requirements

• Scope and classification
  • Fasteners are classified by material (metallic, non‑metallic, composite) and by conductor fixing/clamping arrangement.
• Environmental requirements
  • Corrosion resistance for metallic and composite fasteners (salt mist, humid sulphurous, ammonia atmospheres referenced).
  • Ultraviolet (UV) resistance testing for non‑metallic and composite fasteners.
• Mechanical strength
  • Tests for lateral (perpendicular) and axial loads, plus impact tests to verify structural integrity under expected mechanical stresses.
• Installation and marking
  • Requirements for clear installation instructions and durable marking so products can be safely installed and identified.
• Testing and documentation
  • Detailed specimen preparation, test procedures, pass/fail criteria and structured test report content (including instrument and equipment descriptions).
• Additional considerations
  • Electromagnetic compatibility (EMC) considerations and suitability notes for hazardous atmospheres where applicable.
• Test flow
  • New flow chart (Annex C) to guide manufacturers and test houses through required sequences.

Applications and who uses this standard

EN 62561-4 is essential for ensuring reliable fixation of lightning conductors in civil, commercial and industrial installations. Typical users:

• Manufacturers of conductor fasteners and LPSC components (to design, test and certify products).
• Test laboratories and conformity assessment bodies (to perform standardized environmental and mechanical tests).
• Designers and engineers specifying lightning protection systems (to select compliant fasteners).
• Installation contractors and maintenance teams (to follow installation instructions and identify suitable products).
• Regulators and procurement specialists requiring documented compliance for safety and durability.

Practical benefits include improved durability against corrosion and UV, predictable mechanical performance under storm and environmental stress, and easier product selection and compliance verification.

Related standards

• EN/IEC 62561-1 (general LPSC requirements)
• IEC/EN 62305 series (protection against lightning) - referenced for design context
• Environmental and testing references listed in EN 62561-4: ISO 4892‑2, IEC 60068‑2‑52, IEC 60068‑2‑75, ISO 6988, ISO 6957

Keywords: EN 62561-4, IEC 62561-4:2017, conductor fasteners, lightning protection, LPSC, corrosion resistance, UV resistance, mechanical tests, composite fasteners, installation instructions.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2018
1DGRPHãþD
SIST EN 62561-4:2011
(OHPHQWLVLVWHPD]D]DãþLWRSUHGVWUHOR/36&GHO=DKWHYH]DSULWUGLOQH
HOHPHQWH
Lightning protection system components (LPSC) - Part 4: Requirements for conductor
fasteners
Blitzschutzsystembauteile (LPSC) - Teil 4: Anforderungen an Leitungshalter
Composants de système de protection contre la foudre (CSPF) - Partie 4: Exigences
pour les fixations de conducteur
Ta slovenski standard je istoveten z: EN 62561-4:2017
ICS:
91.120.40 =DãþLWDSUHGVWUHOR Lightning protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62561-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2017
ICS 29.020; 91.120.40 Supersedes EN 62561-4:2011
English Version
Lightning protection system components (LPSC) - Part 4:
Requirements for conductor fasteners
(IEC 62561-4:2017)
Composants de systèmes de protection contre la foudre Blitzschutzsystembauteile (LPSC) - Teil 4: Anforderungen
(CSPF) - Partie 4: Exigences pour les fixations de an Leitungshalter
conducteur (IEC 62561-4:2017)
(IEC 62561-4:2017)
This European Standard was approved by CENELEC on 2017-09-01. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62561-4:2017 E
European foreword
The text of document 81/564/FDIS, future edition 2 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 this document has to be (dop) 2018-06-01
implemented at national level
by publication of an identical
national standard or by endorsement
– latest date by which the national standards conflicting (dow) 2020-12-01
with this document have to be withdrawn

This document supersedes EN 62561-4:2011.
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.
Endorsement notice
The text of the International Standard IEC 62561-4:2017 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 62305 (series) NOTE Harmonized as EN 62305 (series).

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 When 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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-52 1996 Environmental testing -- Part 2-52: Tests - EN 60068-2-52 1996
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 -  Protection against lightning -- Part 3: EN 62305-3 -
Physical damage to structures and life
hazard
IEC 62561-1 2017  EN 62561-1 2017
ISO 4892-2 2013 Plastics - Methods of exposure to EN ISO 4892-2 2013
laboratory light sources - Part 2: Xenon-arc
lamps
ISO 4892-3 -  EN ISO 4892-3 2016
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 6988 1985 Metallic and other non-organic coatings - EN ISO 6988 1994
Sulfur dioxide test with general
condensation of moisture
IEC 62561-4 ®
Edition 2.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Lightning protection system components (LPSC) –

Part 4: Requirements for conductor fasteners

Composants de système de protection contre la foudre (CSPF) –

Partie 4: Exigences pour les fixations de conducteur

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.020; 91.120.40 ISBN 978-2-8322-4633-7

– 2 – IEC 62561-4:2017 © IEC 2017
CONTENTS
CONTENTS . 2
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Classification . 8
4.1 According to material of conductor fastener . 8
4.2 According to fixing arrangement of the conductor within the conductor
fastener . 8
4.3 According to conductor clamping arrangement . 8
5 Requirements . 8
5.1 General . 8
5.2 Environmental requirements . 8
5.2.1 Corrosion resistance . 8
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 . 9
6 Tests . 9
6.1 General test conditions . 9
6.2 Preparation of the specimen . 10
6.3 Environmental influence test . 10
6.3.1 General . 10
6.3.2 Metallic . 11
6.3.3 Non-metallic . 11
6.3.4 Composite . 12
6.4 Resistance to mechanical effects . 12
6.4.1 Lateral load test . 12
6.4.2 Axial load test . 13
6.4.3 Impact test . 14
6.5 Installation instructions . 15
6.6 Marking test . 16
6.6.1 General conditions for tests . 16
6.6.2 Acceptance criteria . 16
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 . 17
8.3 Specimen description . 17
8.4 Conductor . 17
8.5 Standards and references . 17
8.6 Test procedure . 17

IEC 62561-4:2017 © IEC 2017 – 3 –
8.7 Testing equipment description . 18
8.8 Measuring instruments description . 18
8.9 Results and parameters recorded . 18
8.10 Statement of pass/fail . 18
Annex A (normative) Environmental test 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 The test . 20
B.3 First alternative test to B.2 . 20
B.4 Second alternative test to B.2 . 20
Annex C (normative) Flow chart of tests for conductor fastener . 21
Bibliography . 22

Figure 1 – Basic arrangement of specimens . 11
Figure 2 – Basic arrangement of lateral load test . 13
Figure 3 – Typical arrangement for axial movement test . 14
Figure 4 – Impact test apparatus . 15
Figure C.1 – Flowchart . 21

– 4 – IEC 62561-4:2017 © IEC 2017
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) 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.
International Standard IEC 62561-4 has been prepared by IEC technical committee 81:
Lightning protection.
This second edition cancels and replaces the first edition, published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• new detailed flow chart of the tests;
• in Annexes A and B, composite fasteners have been added.

IEC 62561-4:2017 © IEC 2017 – 5 –
The text of this International Standard is based on the following documents:
FDIS Report on voting
81/564/FDIS 81/567/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all 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 "http://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.
– 6 – IEC 62561-4:2017 © IEC 2017
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 according to IEC 62305 (all parts).

IEC 62561-4:2017 © IEC 2017 – 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.
LPSC can also be suitable for use in hazardous atmospheres. There are therefore additional
requirements when installing the components in such conditions.
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 60068-2-52:1996, 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, Protection against lightning – Part 3: Physical damage to structures and life
hazard
IEC 62561-1:2017, Lightning Protection System Components (LPSC) – Part 1: Requirements
for connection components
ISO 4892-2:2013, 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 6988:1985, Metallic and other non-organic coatings – Sulphur dioxide test with general
condensation of moisture
ISO 6957:1988, Copper alloys – Ammonia test for stress corrosion resistance
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

– 8 – IEC 62561-4:2017 © IEC 2017
ISO and IEC maintain terminological databases for use in standardization, which can be
consulted at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/obp
• ISO Online browsing platform: available at http://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
4 Classification
4.1 According to material of 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 plastic).
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 according to
IEC 62561-1.
4.2 According to fixing arrangement of the conductor within the conductor fastener
a) with screws;
b) without screws (e.g. clips, springs).
4.3 According to 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.
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.

IEC 62561-4:2017 © IEC 2017 – 9 –
Compliance is checked for metallic fasteners by the test specified in 6.3.2 or for composite
fasteners by the tests described in 6.3.4.
5.2.2 Ultraviolet (UV) light resistance
Non-metallic and composite conductor fasteners shall withstand UV light effects.
Compliance is checked for non-metallic fasteners by the test specified in 6.3.3 or for
composite fasteners by tests specified in 6.3.4.
5.3 Mechanical strength
5.3.1 Perpendicular and axi
...