EN IEC 60352-7:2021
(Main)Solderless connections - Part 7: Spring clamp connections - General requirements, test methods and practical guidance
Solderless connections - Part 7: Spring clamp connections - General requirements, test methods and practical guidance
IEC 60352-7:2020 is available as IEC 60352-7:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60352-7:2020 is applicable to spring clamp connections made with stripped wire without further preparation: - solid conductors of 0,32 mm to 3,7 mm nominal diameter (0,08 mm2 to 10 mm2 cross‑section), or - stranded conductors of 0,08 mm2 to 10 mm2 cross-section, or - flexible conductors of 0,08 mm2 to 10 mm2 cross-section, according to IEC 60228 or IEC 60189-3 for use in electrical and electronic equipment and components. Information on materials and data from industrial experience is included in addition to the test procedures to provide electrically stable connections under prescribed environmental conditions. The object of this document is to determine the suitability of spring clamp connections under specified mechanical, electrical and atmospheric conditions. This second edition cancels and replaces the first edition of IEC 60352-7, published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) correction of the two flow charts in Figure 6 and Figure 7, b) split the content into more clauses for better separation between full test schedule and basic test schedule, c) relocating the content of former Clause 6 Practical guidance into an informative Annex A, as now common in the IEC 60352 series for solderless connections, d) clarification on conductor types with reference to classes defined in IEC 60228.
Lötfreie Verbindungen - Teil 7: Federklemmverbindungen - Allgemeine Anforderungen, Prüfverfahren und Anwendungshinweise
Connexions sans soudure - Partie 7: Connexions à ressort - Règles générales, méthodes d’essai et guide pratique
IEC 60352-7:2020 est disponible sous forme de IEC 60352-7:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'�dition pr�c�dente.
Spoji brez spajke - 7. del: Objemka vzmetnih spojk - Splošne zahteve, preskusne metode in praktični napotki (IEC 60352-7:2020)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2021
Nadomešča:
SIST EN 60352-7:2003
Spoji brez spajke - 7. del: Objemka vzmetnih spojk - Splošne zahteve, preskusne
metode in praktični napotki (IEC 60352-7:2020)
Solderless connections - Part 7: Spring clamp connections - General requirements, test
methods and practical guidance (IEC 60352-7:2020)
Lötfreie Verbindungen - Teil 7: Federklemmverbindungen - Allgemeine Anforderungen,
Prüfverfahren und Anwendungshinweise (IEC 60352-7:2020)
Connexions sans soudure - Partie 7: Connexions à ressort - Règles générales,
méthodes d'essai et guide pratique (IEC 60352-7:2020)
Ta slovenski standard je istoveten z: EN IEC 60352-7:2021
ICS:
29.120.20 Spojni elementi Connecting devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60352-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2021
ICS 31.220.10 Supersedes EN 60352-7:2002 and all of its amendments
and corrigenda (if any)
English Version
Solderless connections - Part 7: Spring clamp connections -
General requirements, test methods and practical guidance
(IEC 60352-7:2020)
Connexions sans soudure - Partie 7: Connexions à ressort - Lötfreie Verbindungen - Teil 7: Federklemmverbindungen -
Règles générales, méthodes d'essai et guide pratique Allgemeine Anforderungen, Prüfverfahren und
(IEC 60352-7:2020) Anwendungshinweise
(IEC 60352-7:2020)
This European Standard was approved by CENELEC on 2021-01-20. 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,
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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60352-7:2021 E
European foreword
The text of document 48B/2823/CDV, future edition 2 of IEC 60352-7, prepared by SC 48B "Electrical
connectors" of IEC/TC 48 "Electrical connectors and mechanical structures for electrical and electronic
equipment" 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) 2021-10-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-01-20
document have to be withdrawn
This document supersedes EN 60352-7:2002 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.
Endorsement notice
The text of the International Standard IEC 60352-7:2020 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 standards
indicated:
IEC 60512-1-100 NOTE Harmonized as EN 60512-1-100
IEC 60512-9-5 NOTE Harmonized as EN IEC 60512-9-5
IEC 60947-7-1:2009 NOTE Harmonized as EN 60947-7-1:2009 (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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-1 2013 Environmental testing - Part 1: General EN 60068-1 2014
and guidance
IEC 60189-3 2007 Low-frequency cables and wires with PVC - -
insulation and PVC sheath - Part 3:
Equipment wires with solid or stranded
conductor wires, PVC insulated, in singles,
pairs and triples
IEC 60228 2004 Conductors of insulated cables EN 60228 2005
- - + corrigendum May 2005
IEC 60512-1 - Connectors for electrical and electronic EN IEC 60512-1 -
equipment - Tests and measurements -
Part 1: Generic specification
IEC 60512-1-1 - Connectors for electronic equipment - EN 60512-1-1 -
Tests and measurements - Part 1-1:
General examination - Test 1a: Visual
examination
IEC 60512-1-2 - Connectors for electronic equipment - EN 60512-1-2 -
Tests and measurements - Part 1-2:
General examination - Test 1b:
Examination of dimension and mass
IEC 60512-2-1 - Connectors for electronic equipment - EN 60512-2-1 -
Tests and measurements - Part 2-1:
Electrical continuity and contact resistance
tests - Test 2a: Contact resistance -
Millivolt level method
IEC 60512-2-2 - Connectors for electronic equipment - EN 60512-2-2 -
Tests and measurements - Part 2-2:
Electrical continuity and contact resistance
tests - Test 2b: Contact resistance -
Specified test current method
Publication Year Title EN/HD Year
IEC 60512-2-5 - Connectors for electronic equipment - EN 60512-2-5 -
Tests and measurements - Part 2-5:
Electrical continuity and contact resistance
tests - Test 2e: Contact disturbance
IEC 60512-6-4 - Connectors for electronic equipment - EN 60512-6-4 -
Tests and measurements - Part 6-4:
Dynamic stress tests - Test 6d: Vibration
(sinusoidal)
IEC 60512-9-2 - Connectors for electronic equipment - EN 60512-9-2 -
Tests and measurements - Part 9-2:
Endurance tests - Test 9b: Electrical load
and temperature
IEC 60512-11-1 - Connectors for electrical and electronic EN IEC 60512-11-1 -
equipment - Tests and measurements -
Part 11-1: Climatic tests - Test 11a -
Climatic sequence
IEC 60512-11-4 - Connectors for electronic equipment - EN 60512-11-4 -
Tests and measurements - Part 11-4:
Climatic tests - Test 11d: Rapid change of
temperature
IEC 60512-11-7 - Connectors for electronic equipment - EN 60512-11-7 -
Tests and measurements - Part 11-7:
Climatic tests - Test 11g: Flowing mixed
gas corrosion test
IEC 60512-16-20 - Electromechanical components for EN 60512-16-20 -
electronic equipment - Basic testing
procedures and measuring methods - Part
16: Mechanical tests on contacts and
terminations - Section 20: Test 16t:
Mechanical strength (wired termination of
solderless connections)
IEC 60352-7 ®
Edition 2.0 2020-12
INTERNATIONAL
STANDARD
Solderless connections –
Part 7: Spring clamp connections – General requirements, test methods and
practical guidance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.220.10 ISBN 978-2-8322-9181-8
– 2 – IEC 60352-7:2020 © IEC:2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Requirements . 10
4.1 Workmanship . 10
4.2 Tools . 10
5 Pre-requisites for basic test schedule . 10
5.1 Spring clamp terminations . 10
5.1.1 Materials . 10
5.1.2 Surface finishes . 11
5.1.3 Design features . 11
5.1.4 Dimensions . 11
5.2 Wires . 11
5.2.1 General . 11
5.2.2 Materials . 11
5.2.3 Dimensions . 11
5.2.4 Surface finishes . 11
5.2.5 Wire insulation . 12
5.3 Spring clamp connections . 12
6 Testing . 12
6.1 General . 12
6.2 Standard conditions for testing . 12
6.3 Preconditioning . 12
6.4 Recovery . 12
6.5 Mounting of specimen . 12
7 Tests . 13
7.1 General examination . 13
7.2 Mechanical tests . 13
7.2.1 Tensile strength . 13
7.2.2 Wire deflection. 13
7.2.3 Vibration . 16
7.2.4 Repeated connections and disconnections . 17
7.3 Electrical tests . 18
7.3.1 Contact resistance . 18
7.3.2 Electrical load and temperature . 19
7.4 Climatic tests . 19
7.4.1 General . 19
7.4.2 Rapid change of temperature . 19
7.4.3 Climatic sequence . 19
7.4.4 Flowing mixed gas corrosion test . 20
8 Test schedules . 20
8.1 General . 20
8.2 Basic test schedule . 21
IEC 60352-7:2020 © IEC:2020 – 3 –
8.2.1 General .
...
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