1、BRITISH STANDARD BS EN 60512-2-3:2002 Connectors for electronic equipment Tests and measurements Part 2-3: Electrical continuity and contact resistance tests Test 2c: Contact resistance variation The European Standard EN 60512-2-3:2002 has the status of a British Standard ICS 31.220.10 NO COPYING WI
2、THOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 60512-2-3:2002 This British 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 23 May 2002
3、BSI 23 May 2002 ISBN 0 580 39671 1 National foreword This British Standard is the official English language version of EN 60512-2-3:2002. It is identical with IEC 60512-2-3:2002. The UK participation in its preparation was entrusted to Technical Committee EPL/48, Electromechanical components and mec
4、hanical structures for electronic equipment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been re
5、numbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found
6、 in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards
7、are responsible for their 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,
8、 and keep the UK 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 5 and a back cover. The BSI copyright date displayed in this docume
9、nt indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 60512-2-3 NORME EUROPENNE EUROPISCHE NORM April 2002 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisc
10、hes 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. EN 60512-2-3:2002 E ICS 31.220.10 English version Connectors for electronic equi
11、pment Tests and measurements Part 2-3: Electrical continuity and contact resistance tests Test 2c: Contact resistance variation (IEC 60512-2-3:2002) Connecteurs pour quipements lectroniques Essais et mesures Partie 2-3: Essais de continuit lectrique et de rsistance de contact Essai 2c: Variation de
12、la rsistance de contact (CEI 60512-2-3:2002) Steckverbinder fr elektronische Einrichtungen Mess- und Prfverfahren Teil 2-3: Prfungen des elektrischen Durchgangs und Durchgangswiderstands - Prfung 2c: Schwankung des Durchgangswiderstands (IEC 60512-2-3:2002) This European Standard was approved by CEN
13、ELEC on 2002-04-01. 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 standa
14、rds may be obtained on application to the Central Secretariat 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 notif
15、ied to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,
16、Sweden, Switzerland and United Kingdom.NE 065-21-2:32002 - 2 - Foreword The text of document 48B/1131/FDIS, future edition 1 of IEC 60512-2-3, prepared by SC 48B, Connectors, of IEC TC 48, Electromechanical components and mechanical structures for electronic equipment, was submitted to the IEC-CENEL
17、EC parallel vote and was approved by CENELEC as EN 60512-2-3 on 2002-04-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2003-01-01 latest date by which the national standa
18、rds conflicting with the EN have to be withdrawn (dow) 2005-04-01 Annexes designated “normative“ are part of the body of the standard. In this standard, annex ZA is normative. Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60512-2-3:2002 was appro
19、ved by CENELEC as a European Standard without any modification. _ Page2 EN6051223:2002 BSI23May2002065-21-23 EI:C0022 3 CONNECTORS FOR ELECTRONIC EQUIPMENT TESTS AND MEASUREMENTS Part 2-3: Electrical continuity and contact resistance tests Test 2c: Contact resistance variation 1 General 1.1 Scope an
20、d object This part of IEC 60512, when required by the detail specification, is used for testing electromechanical components within the scope of IEC technical committee 48. This test may also be used for similar devices when specified in a detail specification. The object of this test is to define a
21、 standard test method to determine the variation of contact resistance of electromechanical components under specified dynamic conditions. This test should be carried out only on components the contact resistance of which is measured by test 2a. 1.2 Normative references The following normative docum
22、ents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60512. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 60512 are encouraged to in
23、vestigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60512-2-1: Co
24、nnectors for electronic equipment Tests and measurements Part 2-1: Elec- trical continuity and contact resistance tests Test 2a: Contact resistance Millivolt level method 2 Preparations 2.1 Resources (equipment) The variation of contact resistance shall be determined by means of an apparatus display
25、ing the voltage drop measured between points specified in the detail specification. This apparatus shall be adapted to the level of requirement in frequency bandwidth and sensitivity as specified in the detail specification, such as an oscilloscope or a recorder for low to high speed transient pheno
26、mena. NOTE A frequency bandwidth from d.c. to 20 kHz and a sensitivity of 50 V for a contact resistance variation of 1 m should be appropriate for most cases. Page3 EN6051223:2002 BSI23May2002065-21-23 EI:C0022 4 2.2 Mounting of test specimen The test specimen shall be mounted in accordance with the
27、 requirements of the detail specification. 3 Method The variation of contact resistance shall be determined under dynamic conditions. The measurement of variation of contact resistance shall be made during the period specified in the relevant test and/or detail specification. The measurement shall b
28、e carried out in accordance with IEC 60512-2-1, test 2a, with a d.c. current not exceeding 50 mA. The variation of contact resistance shall not exceed the value specified in the detail specification. 4 Details to be specified When this test is required by the detail specification, the following deta
29、ils shall be specified: a) method of mounting and wiring the test specimen; b) limit of variation of the contact resistance; c) severity of the associated dynamic test(s); d) contacts to be measured; e) sensitivity and bandwidth of the measuring apparatus; f) any deviation from the standard test met
30、hod. _ Page4 EN6051223:2002 BSI23May2002- 3 - EN 065-21-2:32002 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normativ
31、e references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated referenc
32、es the latest edition of the publication referred to applies (including amendments). NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60512-2-1 - 1) Connectors for electronic equipm
33、ent - Tests and measurements Part 2-1: Electrical continuity and contact resistance tests - Test 2a: Contact resistance - Millivolt level method EN 60512-2-1 2002 2)1)Undated reference. 2)Valid edition at date of issue. Page5 EN6051223:2002 BSI23May2002BS EN 60512-2-3:2002 BSI 389 Chiswick High Road
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