BS-EN-61965-2001.pdf
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1、BRITISH STANDARD BS EN 61965:2001 Mechanical safety of cathode ray tubes The European Standard EN 61965:2001 has the status of a British Standard ICS 31.100 ? Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 16:46:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61965:2001 This British Stan
2、dard was published under the authority of the Standards Policy and Strategy Committee on 12 May 2003 BSI 12 May 2003 ISBN 0 580 41810 3 National foreword This British Standard is the official English language version of EN 61965:2001. It is identical with IEC 61965:2000. The UK participation in its
3、preparation was entrusted to Technical Committee EPL/39, Electronic tubes, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications
4、 referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary
5、provisions of a contract. Users are responsible for its 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 interpreta
6、tion, 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 50, an inside back cover and a back c
7、over. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 16:46:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARDEN 61965 NORME EU
8、ROPENNE EUROPISCHE NORMDecember 2001 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 2001 CENELEC -All rights of exploitation in
9、 any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61965:2001 E ICS 31.100 English version Mechanical safety of cathode ray tubes (IEC 61965:2000) Scurit mcanique des tubes cathodiques (CEI 61965:2000) Mechanische Sicherheit von Kathodenstrahlrhren (IEC 61965:2000) This E
10、uropean Standard was approved by CENELEC on 2001-12-04. 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 refere
11、nces 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 responsibility of a CENELEC me
12、mber 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, Luxembourg, Malta, Ne
13、therlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 16:46:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of document 39/252/FDIS, future edition 1 of IEC 61965, prepared by IEC TC 39, Electronic tubes, wa
14、s submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61965 on 2001-12-04. 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)2002-09-01 latest date by whi
15、ch the national standards conflicting with the EN have to be withdrawn(dow)2004-12-01 Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given for information only. In this standard, annex ZA normative and annexes A and B are informative. Annex
16、ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61965:2000 was approved by CENELEC as a European Standard without any modification. _ Page 2 EN 61965:2001 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 16:46:49 GMT+00:00 2006, Uncontrolled Copy,
17、(c) BSI 61965 IEC:2000(E) 3 CONTENTS Page INTRODUCTION.6 Clause 1 Scope 7 2 Normative references.7 3 Definitions8 4 General requirements 9 4.1 Corrosion protection9 4.2 Mechanical damage 9 4.3 Handling9 5 Environmental conditioning 9 5.1 Standard atmospheric conditions for testing 9 5.2 Precondition
18、ing .10 5.3 Thermal conditioning .10 6 Sampling10 6.1 Sampling plans10 6.2 Sample numbers .10 6.3 Compliance .10 7 Test preparation and set-up .10 7.1 Scratch patterns10 7.2 Barriers .10 7.3 Mounting .11 7.4 Mounting position 11 8 Testing of large CRTs 11 8.1 Mechanical strength (ball impact test) .
19、11 8.2 Implosion test (missile)12 8.3 Implosion test (thermal shock).13 8.4 High-energy impact test.13 9 Testing of small CRTs14 9.1 Mechanical strength (ball impact test) .14 9.2 Implosion test (high ball) .15 9.3 Implosion test (thermal shock).15 9.4 High-energy impact test.15 10 Marking16 11 Norm
20、ative requirements for the use of tables 1 and 2 (prestressed banded CRTs).16 11.1 Sampling plan I: New construction.17 11.2 Sampling plan II: New construction with known resin or tape.18 11.3 Sampling plan III: Tension band and alternative tension band .18 11.4 Sampling plan IV: Alternative constru
21、ction.19 12 Normative requirements for the use of tables 3 and 4 (bonded frame CRTs)19 12.1 Sampling plan I: New construction.19 12.2 Sampling plan II: Alternative construction20 Page 3 EN 61965:2001 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 16:46:49 GMT+00:00 2006, Uncontrolled Copy, (
22、c) BSI 4 61965 IEC:2000(E) Clause Page 13 Normative requirements for the use of tables 5 and 6 (laminated CRTs) 21 13.1 Sampling plan I: New construction.21 13.2 Sampling plan II: Alternative construction21 Annex A (informative) Background to the development of this standard 37 A.1 Mechanical streng
23、th test 38 A.2 Implosion test 38 A.3 Small CRTs (76 mm to 160 mm diagonal) 38 A.4 Evaluation time 38 Annex B (informative) Velocity and potential force of glass particles expelled from a CRT subjected to a ball impact Ballistic and statistical calculations.39 B.1 Introduction39 B.2 Analysis without
24、friction .39 B.3 Analysis with friction 45 B.4 Potential threat 48 B.5 Conclusions .48 Annex ZA (normative) Normative references to international publications with their corresponding European publications .50 Figure 1 Example of a test cabinet.27 Figure 2 Example of a ball impact test .28 Figure 3
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