1、BRITISH STANDARD Connectors for electronic equipment Tests and measurements Part 11-2: Climatic tests- Test 1 1 b: Combined/sequential cold, low air pressure and damp heat The European Standard EN 605 12-1 1-2:2002 has the status of a British Standard ICs 31.220.10 BS EN 605 12-1 1-21 2002 WkNb A%“
2、U- rn% E rn NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW $ present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments a
3、nd promulgate them in the UK. - A list of organizations represented on this subcommittee 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 renumbered as IEC 60027-1. For a period oftim
4、e 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 in the BSI Standards Catalogue under the se
5、ction 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 are responsible for their correct applicatio
6、n. Compliance with a British Standard does not ofitself confer immunity from legal obligations. 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 document indicates when the docume
7、nt was last issued. O BSI 23 May 2002 ISBN O 580 39703 3 EUROPEAN STANDARD EN 60512-1 1-2 NORME EUROPENNE EUROPISCHE NORM April 2002 ICs 31.220.10 English version Connectors for electronic equipment - Tests and measurements Part 11-2: Climatic tests - Test 11 b: Combined/sequential cold, low air pre
8、ssure and damp heat (IEC 6051 2-1 1-212002) Connecteurs pour quipements lectroniques - Essais et mesures Partie 11-2: Essais climatiques - Essai 11 b: Essai combin squentiel de froid, basse pression atmosphrique et chaleur humide (CE1 60512-1 1-212002) Steckverbinder fr elektronische Einrichtungen -
9、 Mess- und Prfverfahren Teil 11 -2: Klimatische Prfungen - Prfung 11 b: Kombinierte Prfung Klte, Unterdruck und feuchte Wrme (IEC 60512-1 1-212002) This European Standard was approved by CENELEC on 2002-04-01. CENELEC members are bound to comply with the CENKENELEC Internal Regulations which stipula
10、te 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 Central Secretariat or to any CENELEC member. This European Standard
11、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 Central Secretariat has the same status as the official versions. CENELEC members are the national e
12、lectrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit E
13、uropen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels O 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60512-11-2:2002 E Page 2 E
14、N 60512-11-22002 Foreword The text of document 48B/1143/FDIS, future edition 1 of IEC 60512-1 1-2, 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
15、 as EN 60512-1 1-2 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 - latest date by which the national standards conflicting with the EN have to be withdrawn Annexe
16、s designated “normative“ are part of the body of the standard. In this standard, annex ZA is normative. Annex ZA has been added by CENELEC. (dop) 2003-01-01 (dow) 2005-04-01 Endorsement notice The text of the International Standard IEC 60512-11-2:2002 was approved by CENELEC as a European Standard w
17、ithout any modification. O BSI 23 May 2002 Page 3 EN 60512-11-22002 CONNECTORS FOR ELECTRONIC EQUIPMENT - TESTS AND MEASUREMENTS - Part 11-2: Climatic tests - Test 11 b: Combined/sequential cold, low air pressure and damp heat 1 General 1.1 Scope and object This part of IEC 60512, when required by t
18、he 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 standard test method to assess the ability of comp
19、onents to function in a specified manner, during and after subjection to the conditions which prevail to some extent everywhere in an aircraft during ascent and descent, but which are particularly severe in unheated andlor unpressurized zones. 1.2 Normative references The following referenced docume
20、nts 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 60068-2-39:1976, Environmenfal fesfing - Parf 2: Tesfs - Tesf ZIAMD: Combine
21、d sequenfial cold, low air pressure, and damp heaf fesf 2 Preparation 2.1 Preparation of the specimen When required by the detail specification, the specimen shall be mated and unmated as many times as specified prior to testing. For each test carried out, the detail specification shall specify the
22、condition of the component, for example mated or unmated. Arrangements necessary for any monitoring required by the detail specification shall be made. 2.2 Wiring of specimen Specimens shall be wired as specified in the detail specification. If, exceptionally, any features of the specimen (for examp
23、le the rear ends of the contacts of hermetically sealed fixed connectors) are to be protected in any way, the protection shall be in accordance with the detail specification. O BSI 23 May 2002 Page 4 EN 60512-11-22002 2.3 Precondition i ng Preconditioning shall be of at least 1 h, unless otherwise s
24、pecified in the detail specification. 3 Test method 3.1 Conditioning This test shall be carried out in accordance with IEC 60068-2-39, Test Z/AMD: Combined sequential cold, low air pressure, and damp heat test, using the extremes of cold and low air pressure specified in the detail specification. 3.
25、1.1 Polarization voltage When specified in the detail specification, a polarization voltage shall be applied to two of the specimens during conditioning. Any leakage current resulting from such an application is not to be taken into account. Except when necessary for a functional check prescribed by
26、 the detail specification, at no time during the conditioning shall the component carry current. 3.2 Initial measurements Initial measurements shall be carried out as specified by the detail specification 3.3 Measurements during the test and final measurements The functional checks and measurements
27、prescribed in the detail specification shall be made at the junctures indicated in Test Z/AMD during and immediately at the conclusion of the conditioning. 4 Details to be specified When this test is required by the detail specification, the following details shall be specified: type and size of wir
28、e(s) to be used; preparation of the specimen, including details of the protection (if any) to be afforded to any part of the component; the position in which the component is to be tested; requirements for the measurements; initial measurements; operating conditions; measurements required; polarizin
29、g voltage, if necessary; any deviation from the standard test method. O BSI 23 May 2002 Page 5 EN 60512-11-22002 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, p
30、rovisions from other publications. These normative 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
31、it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). NOTE EN/HD applies. When an international publication has been modified by common modifications, indicated by (mod), the relevant Publication Yearm EN/HD Year IEC 600
32、68-2-39 1976 Environmental testing EN 60068-2-39 1999 Part 2: Tests - Test Z/AMD: Combined sequential cold, low air pressure and damp heat test O BSI 23 May 2002 BS EN 60512-1 1-21 2002 B SI 389 Chiswick High Road London w4 4AL BSI -British Standards Institution BSI is the independent national body
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