1、BRITISH STANDARD BS EN 60352-7:2002 Incorporating Corrigendum No. 1 Solderless connections Part 7: Spring clamp connections General requirements, test methods and practical guidance The European Standard EN 60352-7:2002 has the status of a British Standard ICS 31.220.10 BS EN 60352-7:2002 This Briti
2、sh Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 6 November 2002 BSI 13 November 2002 ISBN 0 580 40687 3 National foreword This British Standard is t
3、he official English language version of EN 60352-7:2002. It is identical with IEC 60352-7:2002. The UK participation in its preparation was entrusted by Technical Committee EPL/48, Electromechanical components and mechanical structures for electronic equipment, to Subcommittee EPL/48/2, Connectors f
4、or electronic equipment, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in t
5、he BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible
6、 for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK
7、interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 27 and a back cover. The BSI copyright date displayed in this document indicates whe
8、n the document was last issued. Amendments issued since publication Amd. No. Date Comments 14239 Corrigendum No. 1 13 November 2002 Corrections to inside front cover and shoulder headingsEUROPEAN STANDARD EN 60352-7 NORME EUROPENNE EUROPISCHE NORM October 2002 CENELEC European Committee for Electrot
9、echnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No.
10、 EN 60352-7:2002 E ICS 31.220.10 English version Solderless connections Part 7: Spring clamp connections - General requirements, test methods and practical guidance (IEC 60352-7:2002) Connexions sans soudure Partie 7: Connexions ressort - Rgles gnrales, mthodes dessai et guide pratique (CEI 60352-7:
11、2002) Ltfreie Verbindungen Teil 7: Federklemmverbindungen - Allgemeine Anforderungen, Prfverfahren und Anwendungshinweise (IEC 60352-7:2002) This European Standard was approved by CENELEC on 2002-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
12、 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 Central Secretariat or to any CENELEC member. This European Standard exists
13、 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 Central Secretariat has the same status as the official versions. CENELEC members are the national electro
14、technical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. Foreword The text of document 48B/1228/FDIS, future editio
15、n 1 of IEC 60352-7, prepared by SC 48B, Connectors, of IEC TC 48, Electromechanical components and mechanical structures for electronic equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60352-7 on 2002-10-01. The following dates were fixed: latest date by wh
16、ich the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2003-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2005-10-01 Annexes designated “normative“ are part of the body of the
17、standard. In this standard, annex ZA is normative. Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60352-7:2002 was approved by CENELEC as a European Standard without any modification. _ 2egaP 2002:725306OSINEPage2 EN603527:2002-253067 (2002:CEI)E
18、3 CONTENTS INTRODUCTION.4 1 Scope and object5 2 Normative references5 3 Definitions 6 4 Requirements .8 4.1 Workmanship 8 4.2 Tools.8 4.3 Spring-clamp terminations .8 4.4 Design features .8 4.5 Wires 8 4.6 Spring-clamp connections9 5 Tests9 5.1 Testing9 5.2 Test methods and test requirements 10 5.3
19、Test schedules 17 6 Practical guidance 23 6.1 Current-carrying capacity.23 6.2 Tool information.23 6.3 Termination information.23 6.4 Wire information24 6.5 Connection information26 Figure 1 Examples of spring-clamp connections .7 Figure 2 Example of a spring-clamp terminal 7 Figure 3 Information fo
20、r the wire deflection test 13 Figure 4 Test arrangement, vibration 14 Figure 5 Test arrangement, current method15 Figure 6 Basic test schedule (see 5.3.2) .21 Figure 7 Full test schedule (see 5.3.3)22 Figure 8 Correctly stripped wire25 Figure 9 Examples of stripping faults25 Table 1 Values of tensil
21、e strength.11 Table 2 Values for wire deflection test 12 Table 3 Vibration, test severities.14 Table 4 Rated current of the wires, initial and final contact resistance.16 Table 5 Number of specimens required 18 Annex ZA (normative) Normative references to international publications with their corres
22、ponding European publications 27 3egaP 2002:725306OSINEPage3 EN603527:2002 4 -253067 (2002:CEI)E INTRODUCTION This part of IEC 60352 includes requirements, tests and practical guidance information. Two test schedules are provided. a) The basic test schedule applies to spring-clamp connections which
23、conform to all require- ments of clause 4. These requirements are derived from experience with successful applications of such spring-clamp connections. b) The full test schedule applies to spring-clamp connections which do not fully conform to all requirements of clause 4, for example which are man
24、ufactured using materials or finishes not included in clause 4. This approach permits cost and time effective performance verification using a limited basic test schedule for established spring-clamp connections and an expanded full test schedule for spring-clamp connections requiring more extensive
25、 performance validation. The values given in this specification are minimum values, which are harmonized with other IEC documents. Other standards may specify other values. 4egaP 2002:725306OSINEPage4 EN603527:2002-253067 (2002:CEI)E 5 SOLDERLESS CONNECTIONS Part 7: Spring clamp connections General
26、requirements, test methods and practical guidance 1 Scope and object This part of IEC 60352 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 mm 2to 10 mm 2cross- section), or stranded conductor
27、s of 0,08 mm 2to 10 mm 2cross-section, or flexible conductors of 0,08 mm 2to 10 mm 2cross-section according to IEC 60228 or IEC 60189-3 for use in telecommunication equipment and in electronic devices employing similar techniques. Information on materials and data from industrial experience is inclu
28、ded in addition to the test procedures to provide electrically stable connections under prescribed environmental conditions. The object of this part of IEC 60352 is to determine the suitability of spring-clamp connections under specified mechanical, electrical and atmospheric conditions. NOTE IEC Gu
29、ide 109 advocates the need to minimize the impact of a product on the natural environment throughout the product life cycle. It is understood that some of the materials permitted in this standard may have a negative environmental impact. As technological advances lead to acceptable alternatives for
30、these materials, they will be eliminated from this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (
31、including any amendments) applies. IEC 60050(581):1978, International Electrotechnical Vocabulary (IEV) Chapter 581: Electro- mechanical components for electronic equipment Amendment 1 (1998) IEC 60068-1:1988, Environmental testing Part 1: General and guidance Amendment 1 (1992) IEC 60189-3:1988, Lo
32、w frequency cables and wires with PVC insulation and PVC sheath Part 3: Equipment wires with solid or stranded conductor, PVC insulated, in singles, pairs and triples IEC 60228:1978, Conductors of insulated cables Amendment 1 (1993) IEC 60512 (all parts), Connectors for electronic equipment Tests an
33、d measurements IEC 60512-1-100, Connectors for electronic equipment Tests and measurements Part 1-100: General Applicable publications IEC 60884-1:1994, Plug and socket-outlets for household and similar purposes Part 1: General requirements. 5egaP 2002:725306OSINEPage5 EN603527:2002 6 -253067 (2002:
34、CEI)E 3 Definitions For the purpose of this part of IEC 60352, the terms and definitions of IEC 60050(581) and IEC 60512-1 and the following additional terms and definitions apply: 3.1 spring-clamp termination part of the contact or terminal to which one single conductor only is connected by means o
35、f a spring 3.1.1 universal spring-clamp termination spring-clamp termination intended to accept solid, stranded and flexible unprepared conductors 3.1.2 non-universal spring-clamp termination spring-clamp termination intended to accept conductors of one class only, for example solid conductors only,
36、 or conductors of two classes only, for example solid and stranded but not flexible 3.1.3 push-in spring-clamp termination non-universal spring-clamp termination in which the connection is made by pushing in a solid or stranded conductor 3.2 spring-clamp connection solderless connection achieved by
37、clamping a conductor with a spring-clamp termination, see figure 1 Figure 1a Spring-clamp connection, operated without a tool Figure 1b Spring-clamp connection, operated with a tool IEC 1988/02 IEC 1989/02 6egaP 2002:725306OSINEPage6 EN603527:2002-253067 (2002:CEI)E 7 Figure 1c Spring-clamp connecti
38、on, operated with an actuating element Figure 1d Spring-clamp connections, with a push-in spring-clamp termination, with solid wires Figure 1 Examples of spring-clamp connections 3.3 spring-clamp terminal terminal designed to accept a conductor for the purpose of establishing a spring-clamp connecti
39、on, see figure 2 Figure 2 Example of a spring-clamp terminal 3.4 spring-clamp connecting device device for the electrical connection of one or more conductors comprising one or more spring- clamp terminations and, if necessary, insulation and/or auxiliary parts 3.5 actuating element part of a spring
40、-clamp termination or terminal to which an external force is to be applied. Movement of the actuating element provides a means for activating or deactivating the spring. IEV 581-11-09, modified IEC 1992/02 IEC 1990/02 IEC 1991/02 7egaP 2002:725306OSINEPage7 EN603527:2002 8 -253067 (2002:CEI)E 4 Requ
41、irements 4.1 Workmanship The connection shall be processed in a careful and workmanlike manner, in accordance with good current practice. 4.2 Tools Tools, if necessary, shall be used and inspected according to the instructions given by the manufacturer. 4.3 Spring-clamp terminations 4.3.1 Materials
42、Materials for the current-carrying parts: suitable grades of copper or copper alloy shall be used. Materials for the spring-clamp parts: suitable grades of copper alloy or steel shall be used. 4.3.2 Surface finishes The contact area of the current-carrying parts shall be plated with tin or tin-alloy
43、. The surface shall be free of detrimental contamination or corrosion. 4.4 Design features Spring-clamp terminations shall be designed so that the spring-clamp parts establish a sufficient force to produce a reliable connection. In a spring-clamp connecting device, each conductor shall be clamped in
44、dividually. The openings for use of a tool intended to assist the insertion or withdrawal of the conductor shall be clearly distinguishable from the conductors entry hole. Dimensions The suitability of a spring clamp connection depends on the dimensions of the termination together with the character
45、istics of the materials used. The dimensions shall be chosen so as to be suitable for the wire or the range of wires for which the termination is designed. The suitability is verified by applying the test schedules given in clause 5. 4.5 Wires Wires with solid, stranded and flexible conductors accor
46、ding to IEC 60228 or IEC 60189-3 shall be used depending on the type of spring-clamp terminations. 4.5.1 Materials The conductor used shall be made of annealed copper. 8egaP 2002:725306OSINEPage8 EN603527:2002-253067 (2002:CEI)E 9 4.5.2 Dimensions Wires with the following dimensions shall be used: s
47、olid wires of 0,32 mm to 3,7 mm nominal diameter (0,08 mm 2to 10 mm 2cross-section), or stranded wires of 0,08 mm 2to 10 mm 2cross-section, or flexible wires of 0,08 mm 2to 10 mm 2cross-section. 4.5.3 Surface finishes The conductor shall be unplated or plated with tin or tin-alloy. The conductor sur
48、face shall be free of contamination and corrosion which degrades performance. 4.5.4 Wire insulation The insulation shall be capable of being readily stripped from the conductor without changing the physical characteristics of the conductor or strands. 4.6 Spring-clamp connections a) The combination
49、of wire and spring-clamp termination shall be compatible. b) The wire shall be stripped to the correct length specified by the manufacturer. The stripped part of the conductor shall not be damaged and shall be clean and free from particles of insulation. c) The conductor shall be correctly located in th
