1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 61965 Mechanical Safety for Cathode Ray TubesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED
2、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Mechanical Safety for Cathode Ray Tubes, UL 61965 Second Edition, Dated July 27, 2004 SUMMARY OF TOPICS This revision of ANSI/UL 61965 includes an updated title page to reect reaffirmation of ANSI approval
3、. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The new/revised requirements are substantially in accordance with Proposal(s) on this subject dated January 24, 2014. All rights reserved. No part of this publicat
4、ion may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limi
5、ted to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to u
6、se this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for
7、Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system
8、. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the preface. The prior text for requirements that have been revised and that have a future effective date a
9、re located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. MARCH 24, 2014 UL 61965 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 24, 2014 UL 61965 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHO
10、RIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 27, 2004 (Title Page Reprinted: March 24, 2014) 1 UL 61965 Mechanical Safety for Cathode Ray Tubes First Edition October, 2001 Second Edition July 27, 2004 This ANSI/UL Standard for Safety consists of the Second Edition i
11、ncluding revisions through March 24, 2014. The most recent designation of ANSI/UL 61965 as a Reaffirmed American National Standard (ANS) occurred on March 20, 2014. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, Preface, or effective date information. Th
12、e National Difference Page and IEC Foreword are also excluded from the ANSI approval of IEC-based standards. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards
13、 Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive proper
14、ty of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 61965-2009 (R2014)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 26, 2009 MECHANICAL SAFETY FOR CATHODE RAY TUBES - UL 61965 2 No Text on This PageUL COPYRIGHTED MATERIA
15、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface (UL) 6 NATIONAL DIFFERENCES .6 FOREWORD 7 INTRODUCTION .9 1 Scope 10 2 Normative references .10 3 Denitions 11 4 General Requirements 12 4.1 Corrosion protection .12 4.2 Mechanical damage .12 4.3 Ha
16、ndling .12 4.4 Film coated CRTs .12 5 Environmental Conditioning .12 5.1 Standard atmospheric conditions for testing 12 5.2 Preconditioning .13 5.3 Thermal conditioning .13 6 Sampling .13 6.1 Sampling plans 13 6.2 Sample numbers 13 6.3 Compliance .13 7 Test Preparation and Set-up 13 7.1 Scratch patt
17、erns .13 7.2 Barriers 14 7.3 Mounting .14 7.4 Mounting position .14 8 Testing of Large CRTs .14 8.1 Mechanical strength (ball impact test) 14 8.2 Implosion test (missile) .15 8.3 Implosion test (thermal shock) 16 8.4 High-energy impact test 17 9 Testing of Small CRTs .18 9.1 Mechanical strength (bal
18、l impact test) 18 9.2 Implosion test (high ball) .19 9.3 Implosion test (thermal shock) 19 9.4 High-energy impact test 20 10 Testing of Prestressed Banded CRTs with Protective Film .21 10.1 General .21 10.2 Film scoring pattern for CRTs with protective lm 21 10.3 Peel test 21 10.4 Immersion test .22
19、 11 Marking 23 12 Application Notes for Pre-stressed Banded CRTs with Protective Film 23 13 Normative Requirements for the Use of Tables 1 and 2 (prestressed banded CRTs) 23 13.1 Sampling plan I: New construction 23 13.2 Sampling plan II: New construction with known resin or tape 25 13.3 Sampling pl
20、an III: Tension band and alternative tension band 25 AUGUST 26, 2009 MECHANICAL SAFETY FOR CATHODE RAY TUBES - UL 61965 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 13.4 Sampling plan IV: Alternative construction .26 14 Normative Require
21、ments for the Use of Tables 3 and 4 (prestressed banded with protective lm) .27 14.1 Sampling plan I: New construction 27 14.2 Sampling plan II: New construction with known resin, tape, lm or adhesive .29 14.3 Sampling plan III: Alternative tension band 29 14.4 Sampling plan IV: Alternative construc
22、tion .31 15 Alternative Thermal Conditioning for Use with Tables 3 and 4 (prestressed banded with protective lm) 31 15.1 Additional peel force requirements where alternative thermal conditioning is to be performed .31 15.2 Tensile strength test where alternative thermal conditioning is to be perform
23、ed 32 16 Normative Requirements for the Use of Tables 6 and 7 (bonded frame CRTs) .32 16.1 Sampling plan I: New construction 32 16.2 Sampling plan II: Alternative construction 34 17 Normative Requirements for the Use of Tables 8 and 9 (Laminated CRTs) 34 17.1 Sampling plan I: New construction 34 17.
24、2 Sampling plan II: Alternative construction 35 Tables Figures Annex A (informative) Background to the development of this standard A.1 Mechanical strength test 56 A.2 Implosion test .56 A.3 Small CRTs (76 mm to 160 mm diagonal) 56 A.4 Evaluation time 56 Annex B (informative) Velocity and potential
25、force of glass particles expelled from a CRT subjected to a ball impact Ballistic and statistical calculations B.1 Introduction .57 B.2 Analysis without friction .58 B.2.1 Introduction .58 B.2.2 Equations of motion .59 B.2.3 Minimum velocity to reach a prescribed distance 61 B.2.4 Comparison of kine
26、tic energies 64 B.3 Analysis with friction 65 B.3.1 Introduction .65 B.3.2 Equation of motion 66 B.3.3 Minimum velocity to reach a prescribed distance 70 B.3.4 Inuence of the cross-sectional area .71 B.4 Potential threat 71 B.4.1 Considerations of glass-to-skin impact .71 B.5 Conclusions .72 MARCH 2
27、4, 2014 MECHANICAL SAFETY FOR CATHODE RAY TUBES - UL 61965 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 24, 2014 MECHANICAL SAFETY FOR CATHODE RAY TUBES - UL 61965 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
28、RTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface (UL) This UL Standard is based on IEC Publication 61965: Second edition, Mechanical safety of cathode ray tubes. IEC publication 61965 is copyrighted by the IEC. This edition has been issued to satisfy UL Standards policy to reect
29、 reaffirmation of ANSI approval. The text, gures and tables of IEC Publication Mechanical safety of cathode ray tubes, 61965 copyright 2003 are used in this Standard with the consent of the IEC and the American National Standards Institute (ANSI). The IEC copyrighted material has been reproduced wit
30、h permission from ANSI. ANSI should be contacted regarding the reproduction of any portion of the IEC material. The IEC Foreword and Introduction are not a part of the requirements of this Standard but are included for information purposes only. Copies of IEC Publication 61965 may be purchased from
31、ANSI, 11 West 42 nd Street, New York, New York, 10036, (212) 642-4900. Note Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of this Standard to judge its suitability for their particular purpos
32、e. UL Effective Date UL 61965, Second Edition, is now in effect. A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSI approved standard. MARCH 24, 2014 MECHANICAL SAFETY FOR CATHODE RAY TUBES - UL 61965 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTH
33、ER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NATIONAL DIFFERENCES GENERAL National Differences from the text of International Electrotechnical Commission (IEC) Publication 61965, Mechanical safety of cathode ray tubes, copyright 2003 are indicated by notations (differences) and are pre
34、sented in bold text. There are ve types of National Differences as noted below. The difference type is noted on the rst line of the National Difference in the standard. The standard may not include all types of these National Differences. DR These are National Differences based on the national regul
35、atory requirements. D1 These are National Differences which are based on basic safety principles and requirements, elimination of which would compromise safety for consumers and users of products. D2 These are National Differences based on safety practices. These are differences for IEC requirements
36、 that may be acceptable, but adopting the IEC requirements would require considerable retesting or redesign on the manufacturers part. DC These are National Differences based on the component standards and will not be deleted until a particular component standard is harmonized with the IEC component
37、 standard. DE These are National Differences based on editorial comments or corrections. Each national difference contains a description of what the national difference entails. Typically one of the following words is used to explain how the text of the national difference is to be applied to the ba
38、se IEC text: Addition / Add - An addition entails adding a complete new numbered clause, subclause, table, gure, or annex. Addition is not meant to include adding select words to the base IEC text. Modication / Modify - A modication is an altering of the existing base IEC text such as the addition,
39、replacement or deletion of certain words or the replacement of an entire clause, subclause, table, gure, or annex of the base IEC text. Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subclause, table, gure, or annex without any replacement text. MARCH 24, 2014
40、 MECHANICAL SAFETY FOR CATHODE RAY TUBES - UL 61965 6AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 26, 2009 MECHANICAL SAFETY FOR CATHODE RAY TUBES - UL 61965 6B No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHE
41、R REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTERNATIONAL ELECTROTECHNICAL COMMISSION MECHANICAL SAFETY OF CATHODE RAY TUBES FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committe
42、es (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic elds. To this end and in addition to other activities, IEC publishes International Standards, Technical Specications, Technical Report
43、s, and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising wit
44、h the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as ne
45、arly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in th
46、at sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committe
47、es undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking proc
48、edure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or age
49、nts including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for
