BS EN 60512-14-7-1998 Electromechanical components for electronic equipment - Basic testing procedures and measuring methods - Sealing tests - Test 14g - Impacting water《电子设备用机电元件 .pdf

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1、BRITISH STANDARD BS EN 60512-14-7: 1998 IEC 60512-14-7: 1997 Electromechanical components for electronic equipment Basic testing procedures and measuring methods Part 14: Sealing tests Section 7: Test 14g: Impacting water The European Standard EN 60512-14-7:1998 has the status of a British Standard

2、ICS 31.220.01BSEN60512-14-7:1998 This British Standard, having been prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15 May 1998 BSI 04-1999 ISBN 0 580 29291 6 National foreword This British Standard is

3、the English language version of EN 60512-14-7:1998. It is identical with IEC 60512-14-7:1997. The UK participation in its preparation was entrusted by Technical Committee EPL/48, Electromechanical components for electronic equipment, to Subcommittee EPL/48/2, Connectors for electronic equipment, whi

4、ch has the responsibility to: 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 interests informed; monitor related international and European developments and promulgate the

5、m in the UK. 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 renumbered as IEC 60027-1. For a period of time during the change o

6、ver from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lists normative references to international publications with their corresponding Europea

7、n publications. The British Standards which implement international 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 Electr

8、onic 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 application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This doc

9、ument comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front

10、 cover. Amendments issued since publication Amd. No. Date CommentsBSEN60512-14-7:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 60512-14-7 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60512-14-7 February 1998 ICS 31.220.10 Descriptors: El

11、ectronic components, electronic equipment, connecting equipment, leak tests English version Electromechanical components for electronic equipment Basic testing procedures and measuring methods Part14:Sealing tests Section 7:Test 14g:Impacting water (IEC 60512-14-7:1997) Composants lectromcaniques po

12、ur quipements lectroniques Procdures dessai de base et mthodes de mesure Partie14:Essais dtanchit Section 7: Essai 14g: Projection deau (CEI 60512-14-7:1997) Elektrisch-mechanische Bauelemente frelektronische Einrichtungen Me- und Prfverfahren Teil 14: Prfungen der Dichtheit Hauptabschnitt 7: Prfung

13、 14g: Spritzwasser (IEC 60512-14-7:1997) This European Standard was approved by CENELEC on 1998-01-01. 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 alterati

14、on. 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 versions (English, French, German). A version in any other language made by trans

15、lation 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 committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,

16、 Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: ru

17、e de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60512-14-7:1998 EEN60512-14-7:1998 BSI 04-1999 2 Foreword The text of document 48B/638/FDIS, future edition1 of IEC 60512-14-7, prepared by SC 48

18、B, 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 60512-14-7 on 1998-01-01. The following dates were fixed: This standard is to be used in conjunction with EN6

19、0512-1:1994. 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 60512-14-7:1997 was approved by CENELEC as a European Standard without any modi

20、fication. Contents Page Foreword 2 1 Scope and object 3 2 Normative references 3 3 Preparation of the specimen 3 4 Test method 3 5 Details to be specified 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications Inside back cover latest

21、 date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1998-10-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1998-10-01EN60512-14-7:1998 BSI 04-1999 3 1 Scope and objec

22、t This section of IEC 60512-14, 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 components when specified in a detail specification. This section of IEC 60512-14 defines

23、 a standard test method to assess the effects of impacting water or specified fluid on electrical connecting devices. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this section of IEC 60512-14. At the time

24、of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this section of IEC 60512-14 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members o

25、f IEC and ISO maintain registers of currently valid International Standards. IEC 60068-2-18:1989, Environmental testing Part 2: Tests Test R and guidance: Water. Amendment 1 (1993) IEC 60512-2:1985, Electromechanical components for electronic equipment; basic testing procedures and measuring methods

26、 Part 2: General examination, electrical continuity and contact resistance tests, insulation tests and voltage stress tests. Amendment 1 (1994) 3 Preparation of the specimen The specimen shall be equipped with normal accessories as specified and shall be wired and mounted according to the detail spe

27、cification. The operated condition of the specimen shall be specified by the detail specification. 4 Test method 4.1 Initial measurements The specimen shall be subjected to the following test: insulation resistance, test 3a of IEC 60512-2. 4.2 Conditioning The test shall be conducted according to IE

28、C 60068-2-18, method Rb 2.1: oscillating tube variant, with the following severities (unless otherwise specified in the detail specification): Rotating the specimen with the tube fixed is preferred. The turntable on which the component is placed shall be rotated at a rate of 0,5rpm to 1,5rpm. The te

29、st is carried out with fresh tap water of good quality, unless the use of another fluid is specified in the detail specification. The specimen shall be exposed to the impacting fluid for 10min. 4.3 Final measurements Measurements shall be started within 5min of conditioning completion (see test 3a o

30、f IEC 60512-2: insulation resistance). Prior to this measurements, the specimen shall not be operated or parts removed. 4.4 Requirements The insulation resistance shall not be less than that specified in the detail specification. 5 Details to be specified When this test is required by the detail spe

31、cification, the following details shall be specified: a) number of specimens to be tested; b) preparation of specimens, accessories and number of contacts to be wired; c) type and dimensions of wires/cables, when applicable; d) duration, if other than 10min; e) composition of the fluid; f) insulatio

32、n resistance: method and minimum value permissible; g) any deviation from the standard test method. spray nozzle angle ! = 60 tube oscillating angle “ = 60 nozzle orifice diameter 0,40mm water flow per nozzle (0,10 0,005) dm 3 /min approximate supply pressure 80 kPa4 blankEN60512-14-7:1998 BSI 04-19

33、99 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 normative references are cited at the appropriate places in the text

34、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 references the latest edition of the publication referred to applies

35、(including amendments). NOTEWhen an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-2-18 1989 Environmental testing Part 2: Tests Test R and guidance : Water A1 1993 IEC 60512-2 1985 Elec

36、tromechanical components for electronic equipment Basic testing procedures and measuring methods Part 2: General examination, electrical continuity and contact resistance tests, insulation tests and voltage stress tests A1 1994 BS EN 60512-14-7: 1998 IEC 60512-14-7: 1997 BSI 389 Chiswick High Road L

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