1、BRITISH STANDARD BS EN 60512-11-2: 2002 Connectors for electronic equipment Tests and measurements Part 11-2: Climatic tests Test 11b: Combined/sequential cold, low air pressure and damp heat The European Standard EN 60512-11-2:2002 has the status of a British Standard ICS 31.220.10 NO COPYING WITHO
2、UT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 60512-11-2:2002 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 BS
3、I 23 May 2002 ISBN 0 580 39703 3 National foreword This British Standard is the official English language version of EN 60512-11-2:2002. It is identical with IEC 60512-11-2:2002. The UK participation in its preparation was entrusted by Technical Committee EPL/48, Electromechanical components and mec
4、hanical structures for electronic equipment, to Subcommittee EPL/48/2, Connectors for electronic equipment, which has the responsibility to: 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
5、 60000 added to the old number. For instance, IEC 27-1 has been renumbered 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
6、or European publications referred to in this document may be found 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 t
7、he necessary provisions of a contract. Users of British Standards 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 commi
8、ttee any enquiries on the interpretation, or proposals for change, 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
9、 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 60512-11-2 NORME EUROPENNE EUROPISCHE NORM April 2002 CENELEC European Committee for Electrotechnical Stand
10、ardization 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. EN 60512-11-2
11、:2002 E ICS 31.220.10 English version Connectors for electronic equipment - Tests and measurements Part 11-2: Climatic tests - Test 11b: Combined/sequential cold, low air pressure and damp heat (IEC 60512-11-2:2002) Connecteurs pour quipements lectroniques - Essais et mesures Partie 11-2: Essais cli
12、matiques - Essai 11b: Essai combin squentiel de froid, basse pression atmosphrique et chaleur humide (CEI 60512-11-2:2002) Steckverbinder fr elektronische Einrichtungen - Mess- und Prfverfahren Teil 11-2: Klimatische Prfungen - Prfung 11b: Kombinierte Prfung Klte, Unterdruck und feuchte Wrme (IEC 60
13、512-11-2:2002) This European Standard was approved by CENELEC 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 b
14、ibliographical 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 versions (English, French, German). A version in any other language made by translation under the responsib
15、ility 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 committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
16、Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 61502-11-22:200 - - 2 Foreword The text of document 48B/1143/FDIS, future edition 1 of IEC 60512-11-2, prepared by SC 48B, Connectors, of IEC TC 48, Electromechanical components and mechanical structur
17、es for electronic equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60512-11-2 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 endorseme
18、nt (dop) 2003-01-01 latest date by which the national standards 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 tex
19、t of the International Standard IEC 60512-11-2:2002 was approved by CENELEC as a European Standard without any modification. _ Page2 EN60512112:2002 BSI23May2002-21506-112 2002:CEI 3 CONNECTORS FOR ELECTRONIC EQUIPMENT TESTS AND MEASUREMENTS Part 11-2: Climatic tests Test 11b: Combined/sequential co
20、ld, low air pressure and damp heat 1 General 1.1 Scope and 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 det
21、ail specification. The object of this test is to define a standard test method to assess the ability of components 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 particul
22、arly severe in unheated and/or unpressurized zones. 1.2 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 (includi
23、ng any amendments) applies. IEC 60068-2-39:1976, Environmental testing Part 2: Tests Test Z/AMD: Combined sequential cold, low air pressure, and damp heat test 2 Preparation 2.1 Preparation of the specimen When required by the detail specification, the specimen shall be mated and unmated as many tim
24、es as specified prior to testing. For each test carried out, the detail specification shall specify the 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 wi
25、red as specified in the detail specification. If, exceptionally, any features of the specimen (for example 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. Page3 EN60512112:2002
26、 BSI23May2002-21506-112 2002:CEI 4 2.3 Preconditioning Preconditioning shall be of at least 1 h, unless otherwise specified 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 pres
27、sure, and damp heat test, using the extremes of cold and low air pressure specified in the detail specification. 3.1.1 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 f
28、rom such an application is not to be taken into account. Except when necessary for a functional check prescribed by 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 d
29、etail specification. 3.3 Measurements during the test and final measurements The functional checks and measurements 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 Wh
30、en this test is required by the detail specification, the following details shall be specified: a) type and size of wire(s) to be used; b) preparation of the specimen, including details of the protection (if any) to be afforded to any part of the component; c) the position in which the component is
31、to be tested; d) requirements for the measurements; e) initial measurements; f) operating conditions; g) measurements required; h) polarizing voltage, if necessary; i) any deviation from the standard test method. _ Page4 EN60512112:2002 BSI23May2002- - 3 EN 61502-11-22:200 Annex ZA (normative) Norma
32、tive references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are list
33、ed 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 references the latest edition of the publication referred to applies (including amendments). NOTE
34、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 60068-2-39 1976 Environmental testing Part 2: Tests - Test Z/AMD: Combined sequential cold, low air pressure and damp heat test EN 60068-
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