SIST-TS CLC/TS 50703-1:2020

SLOVENSKI STANDARD
SIST-TS CLC/TS 50703-1:2020
01-februar-2020
Elementi za zaščito pred strelo (LPSC) - 1. del: Zahteve za preskušanje spojev
kovinskih plošč, uporabljenih v LPS
Lightning Protection System Components (LPSC) - Part 1: Testing requirements for
metal sheets’ joints used in LPS
Ta slovenski standard je istoveten z: CLC/TS 50703-1:2019
ICS:
91.120.40 Zaščita pred strelo Lightning protection
SIST-TS CLC/TS 50703-1:2020 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CLC/TS 50703-1:2020

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SIST-TS CLC/TS 50703-1:2020

TECHNICAL SPECIFICATION CLC/TS 50703

SPÉCIFICATION TECHNIQUE

TECHNISCHE SPEZIFIKATION
December 2019
ICS 91.120.40
English Version
Lightning Protection System Components (LPSC) - Part 1:
Testing requirements for metal sheets' joints used in LPS
Composants des systèmes de protection contre la foudre To be completed
(CSPF) - Partie 1: Exigences d'essais relatives aux
jonctions des bandes métalliques utilisées dans les SPF
This Technical Specification was approved by CENELEC on 2019-11-04.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force.

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,
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
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. CLC/TS 50703:2019 E

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SIST-TS CLC/TS 50703-1:2020
CLC/TS 50703-1:2019 (E)
Contents Page
European foreword . 3
1 Scope . 3
2 Normative references . 4
3 Terms and definitions . 4
4 Classification . 5
5 Requirements . 5
5.1 Installation instructions . 5
5.2 Lightning current carrying capability . 5
5.3 Marking . 5
6 Tests . 5
6.1 General . 5
6.2 Test preparation. 6
6.3 Electrical test . 6
6.4 Installation instructions . 7
6.5 Marking test . 7
7 Structure and content of the test report . 7
7.1 General . 7
7.2 Report identification . 8
7.3 Specimen description . 8
7.4 Material . 9
7.5 Standards and references . 9
7.6 Test procedure. 9
7.7 Testing equipment description . 9
7.8 Measuring instruments description . 9
7.9 Results and parameters recorded . 9
7.10 Statement of pass / fail . 9
Annex A (informative) Examples of non-durable metal sheets’ joints . 10
Annex B (informative) Summary of the requirements and corresponding tests . 11
Bibliography . 12
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SIST-TS CLC/TS 50703-1:2020
CLC/TS 50703-1:2019 (E)
European foreword
This document (CLC/TS 50703-1:2019) has been prepared by CLC/TC 81X “Lightning
protection”.
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.
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SIST-TS CLC/TS 50703-1:2020
CLC/TS 50703-1:2019 (E)
1 Scope
This document defines the requirements and testing for joints of metal sheets, with or without
insulating coatings, used as natural components in roofs, facades or walls of buildings,
suitable to conduct lightning current in LPS where the interconnection of these metal sheets
does not ensure durable electrical connection.
NOTE This document does not deal with the lightning interception capabilities of these
components. The connection clamps for connecting the metallic sheet with the down conductor to the
earth termination system are LPSC, tested according to EN 62561-1.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
metal sheets’ joint
electrical and mechanical coupling between metal sheets
Note 1 to entry: Typical joints are shown in Annex A
3.2
metal sheet with insulating coating
metal sheet with a coating insulating protective paint or coating, typically with a thickness of
some ten to some hundred micrometres, not regarded as an insulator for a lightning current
3.3
metal sheet without insulating coating
metal sheet without any insulating protective paint or coating
3.4
non-durable electrical joint
jointing of two metal sheets with or without insulating coating connected as typically shown in
Annex A
3.5
type test
test required to be made before supplying a type of material covered by this standard on a
general commercial basis, in order to demonstrate satisfactory performance characteristics to
meet the intended application
Note 1 to entry: These tests are of such a nature that, after they have been done, they don’t need to
be repeated unless changes are made to the accessory materials, design or type of manufacturing
process which might change the performance characteristics.
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SIST-TS CLC/TS 50703-1:2020
CLC/TS 50703-1:2019 (E)
4 Classification
Classification of metal sheets' joints according to the ability to withstand lightning current as
follows:
— class H for heavy duty;
— class N for normal duty.
The selection of classes H and N should be performed by the manufacturer in accordance
with the test parameters identified in Table 1.
5 Requirements
5.1 Installation instructions
The manufacturer of the metal sheet shall provide at least the following information:
a) the classification of the metal sheet;
b) the joint configuration;
c) the connection configuration.
Compliance is checked by review as per 6.4.
5.2 Lightning current carrying capability
Metal sheet and metal sheet’s joint shall have sufficient lightning current carrying capability.
Compliance is ch
...