BS EN 60512-16-3-2008 Connectors for electronic equipment - Tests and measurements - Part 16-3 Mechanical tests on contacts and nterminations - Test 16c Contact-bending nstrength.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Connectors forelectronic equipment Tests and measurements Part 16-3: Mechanical tests on contacts and termination

2、s Test 16c: Contact-bendingstrengthBS EN 60512-16-3:2008NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LALicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2009 04:10, Uncontrolled Copy, (c) BSINational forewordThis British Standard is the UK implementation of EN 60512-

3、16-3:2008. Itis identical to IEC 60512-16-3:2008.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/48, Electromechanical components and mechanical structures for electronic equipment.A list of organizations represented on this committee can be obtained onrequest to its

4、secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application. BSI 200ISBN 978 0 580 55909 9ICS 31.220.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was pub

5、lished under the authority of the StandardsPolicy and Strategy Committee on Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60512-16-3:2008931 January 2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2009 04:10, Uncontrolled Copy, (c) BSIEUROPEAN S

6、TANDARD EN 60512-16-3 NORME EUROPENNE EUROPISCHE NORM September 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELE

7、C - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60512-16-3:2008 E ICS 31.220.10 English version Connectors for electronic equipment - Tests and measurements - Part 16-3: Mechanical tests on contacts and terminations - Test 16c: Contact-

8、bending strength (IEC 60512-16-3:2008) Connecteurs pour quipements lectroniques - Essais et mesures - Partie 16-3: Essais mcaniques des contacts et des sorties - Essai 16c: Tenue des contacts au pliage (CEI 60512-16-3:2008) Steckverbinder fr elektronische Einrichtungen - Mess- und Prfverfahren - Tei

9、l 16-3: Mechanische Prfungen an Kontakten und Anschlssen - Prfung 16c: Biegefestigkeit von Kontakten (IEC 60512-16-3:2008) This European Standard was approved by CENELEC on 2008-08-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for gi

10、ving 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 in three official

11、 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 electrotechnical committe

12、es of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United

13、Kingdom. BS EN 60512-16-3:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2009 04:10, Uncontrolled Copy, (c) BSI- 3 - EN 60512-16-3:2008 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced do

14、cuments 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 (including any amendments) applies. NOTE When an international publication has been modified by common modificat

15、ions, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60512-1-1 - 1)Connectors for electronic equipment - Tests and measurements - Part 1-1: General examination - Test 1a: Visual examination EN 60512-1-1 2002 2)1)Undated reference. 2)Valid edition at date of iss

16、ue. BS EN 60512-16-3:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2009 04:10, Uncontrolled Copy, (c) BSI 4 60512-16-3 IEC:2008 CONNECTORS FOR ELECTRONIC EQUIPMENT TESTS AND MEASUREMENTS Part 16-3: Mechanical tests on contacts and terminations Test 16c: Contact-bending strength 1

17、Scope and object This part of IEC 60512, when required by the detail specification, is used for testing electrical connectors within the scope of technical committee 48. It may also be used for similar devices when specified in a detail specification. The object of this part of IEC 60512 is to detai

18、l a standard test method to determine the ability of a contact to withstand a specified bending moment or force. If so specified in the detail specification, forces other than bending may be applied. Although this test is illustrated for the mating area of cylindrical contacts, and is particularly a

19、pplicable to those with a mating diameter of 1,2 mm or less, its use for contacts with other geometries is not excluded. In which case, the detail specification shall contain sufficient detail, given under Clause 6, i), j) and k), to enable the test to be done. Furthermore, it may be used for any pa

20、rt of a connector (such as a keying or polarizing device; cable support or contact latching feature) provided that sufficient detail is given in the detail specification. NOTE In some cases, IEC 60068-2-21 may be cited in the detail specification. 2 Normative references The following referenced docu

21、ments 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 (including any amendments) applies. IEC 60512-1-1, Connectors for electronic equipment Tests and measurements Part

22、 1-1: General examination Test 1a: Visual examination 3 Preparations 3.1 Preparation of specimen The specimen shall consist of a contact with its terminations, and may be wired if so specified in the detail specification. Any preconditioning given in the detail specification shall be applied. 3.2 Eq

23、uipment For the application of the specified loads, a suitable device able to provide the controls on the loads (intensity, rate of increase, time of constant load application) shall be required (e.g.: a universal materials testing machine). If the detail specification requires special preconditioni

24、ng of the specimen, all the necessary equipment and process steps describing such conditioning shall be included. BS EN 60512-16-3:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2009 04:10, Uncontrolled Copy, (c) BSI60512-16-3 IEC:2008 5 4 Mounting If mounting of the specimen is ap

25、propriate, it shall be as specified in the detail specification. Figure 1 shows an example of mounting and clarifies details to be given in the detail specification. SpP M L 0,8L IEC 1004/08 Key L Full engagement length of the contact under test P Point and direction of application of force SpPerman

26、ent set M Mounting or support means Figure 1 Contact bending (example) 5 Test method 5.1 General The specified bending moment or force shall be applied, at a specified rate until the specified value is reached. This shall be maintained for 1 minute. The load shall then be removed. This procedure sha

27、ll be applied at four points mutually at right angles to each other. For solid (e.g. turned) cylindrical contacts that are axi-symmetrical, only one procedure is necessary. If permanent set, exceeding that allowed, results from the foregoing, a new sample shall be used. NOTE In the case of asymmetri

28、c (stamped and formed) contacts, more procedures should be performed choosing worst case positions.5.2 Measurements and requirements 5.2.1 Before testing Visual examination according to IEC 60512-1-1 shall be carried out. BS EN 60512-16-3:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26

29、/05/2009 04:10, Uncontrolled Copy, (c) BSI 6 60512-16-3 IEC:2008 5.2.2 During testing The deflection and permanent set of the contact, measured at the point of application of that load shall be measured. NOTE In the case of a contact being made from a highly resilient material (e.g. spring steel or

30、beryllium copper) the deflection may be large whilst the permanent set is negligible. The permanent set shall not exceed any value(s) given in the detail specification 5.2.3 After testing Visual examination according to IEC 60512-1-1 shall be carried out. 6 Details to be specified When this test is

31、required by a detail specification, the following shall be given therein. a) if preconditioning is required; b) if the specimen is to be wired, if so details of this; c) if special mounting of the specimen is required; d) maximum force to be applied; e) point of application of force and relationship

32、 to mounting or support means; f) rate application of force; g) any allowable permanent set; h) number of specimens to be tested; i) if IEC 60068-2-21 is to be used; j) if the geometry of the contact requires special equipment, and if so, details of this; k) any deviation from the standard test meth

33、od. BS EN 60512-16-3:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2009 04:10, Uncontrolled Copy, (c) BSI60512-16-3 IEC:2008 7 Bibliography IEC 60068-2-21:2006, Environmental testing Part 2-21: Tests Test U: Robustness of terminations and integral mounting devices _ BS EN 60512-16

34、-3:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2009 04:10, Uncontrolled Copy, (c) BSIThis page deliberately left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 26/05/2009 04:10, Uncontrolled Copy, (c) BSIBSI is the independent national body responsible for preparing

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