IEC 61300-2-24-2010 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-24 Tests - Screen testing of cer.pdf

《IEC 61300-2-24-2010 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-24 Tests - Screen testing of cer.pdf》由会员分享，可在线阅读，更多相关《IEC 61300-2-24-2010 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-24 Tests - Screen testing of cer.pdf（20页珍藏版）》请在麦多课文档分享上搜索。

1、 IEC 61300-2-24 Edition 2.0 2010-04 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-24: Tests Screen testing of ceramic alignment split sleeve by stress application IEC 61300-2-24:2010(E) colour inside THIS PUBLICATION IS

2、 COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from eith

3、er IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC

4、Central Office 3, rue de Varemb CH-1211 Geneva 20 Switzerland Email: inmailiec.ch Web: www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related techno

5、logies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Catalogue of IEC publications: www.iec.ch/searchpub The IEC on-line Catalogue

6、enables you to search by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, withdrawn and replaced publications. IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just Published details twice a mo

7、nth all new publications released. Available on-line and also by email. Electropedia: www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French, with equivalent terms in additional languages. A

8、lso known as the International Electrotechnical Vocabulary online. Customer Service Centre: www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919

9、02 11 Fax: +41 22 919 03 00 IEC 61300-2-24 Edition 2.0 2010-04 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-24: Tests Screen testing of ceramic alignment split sleeve by stress application INTERNATIONAL ELECTROTECHNICA

10、L COMMISSION P ICS 33.180.20 PRICE CODE ISBN 978-2-88910-492-5 Registered trademark of the International Electrotechnical Commission colour inside 2 61300-2-24 IEC:2010(E) CONTENTS FOREWORD.3 1 Scope.5 2 General description 5 3 Apparatus.5 4 Procedure 7 5 Details to be specified 7 Annex A (informati

11、ve) Static fatigue for zirconia alignment sleeve8 Bibliography15 Figure 1 Apparatus used for screen testing of a ceramic alignment sleeve.6 Figure A.1 Model of time-varying proof stress for a zirconia sleeve10 Figure A.2 Calculated contour lines of gauge retention force and working stress along with

12、 inner and outer diameter of a zirconia sleeve .11 Figure A.3 Calculated general relationship between p / a and t e , satisfying 0,1 FIT for 20 years use12 Figure A.4 Calculated failure probability of screened zirconia sleeves along with working time .12 Figure A.5 Measured and calculated strength d

13、istribution of 2,5 mm zirconia sleeves (comparison between sleeves, extended proof tested or not) 13 Figure A.6 Measured strength distribution of 1,25 mm zirconia sleeves (comparison between sleeves, extended proof tested or not) 14 Table 1 Dimension example of the reference gauge and the plate for

14、the ceramic sleeve.6 Table 2 Dimension example of a commonly used ceramic alignment sleeve.7 Table A.1 Measured static fatigue parameters for zirconia sleeves 11 61300-2-24 IEC:2010(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST

15、 AND MEASUREMENT PROCEDURES Part 2-24: Tests Screen testing of ceramic alignment split sleeve by stress application FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Commit

16、tees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Availab

17、le Specifications (PAS) 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 orga

18、nizations liaising with 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

19、matters express, as nearly 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 Nat

20、ional Committees in that 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,

21、 IEC National Committees 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 it

22、self does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that

23、 they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any natu

24、re 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

25、 publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. Internation

26、al Standard IEC 61300-2-24 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. This second edition replaces the first edition published in 1999. This second edition constitutes a technical revision. Specific

27、technical changes involve the addition of a dimension example of the reference gauge and the plate for the ceramic sleeve and a commonly used ceramic alignment sleeve for the 1,25 mm ceramic sleeve. 4 61300-2-24 IEC:2010(E) The text of this standard is based on the following documents: FDIS Report o

28、n voting 86B/2967/FDIS 86B/3014/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of IEC 61300 series, publis

29、hed under the general title, Fibre optic interconnecting and passive components Basic test and measurement procedures, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “

30、http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page o

31、f this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 61300-2-24 IEC:2010(E) 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND

32、 MEASUREMENT PROCEDURES Part 2-24: Tests Screen testing of ceramic alignment split sleeve by stress application 1 Scope The purpose of this part of IEC 61300 is to identify weaknesses in a ceramic alignment split sleeve which could lead to early failure of the component. 2 General description Cerami

33、c alignment sleeves are important components often used in the adaptor of plug- adaptor-plug optical connector sets. By using the method described, the component is subjected to a proof stress greater than would be experienced under normal service conditions. This enables weak products to be screene

34、d out. 3 Apparatus The apparatus and arrangement necessary to perform this screening procedure are shown in Figure 1. The material needed consists of the following: a) a reference gauge made of ceramic with a sleeve-holding section, a tapered section and a stress-applying section. The diameter of ea

35、ch section is dependent on the dimensions of the product being screened. The length of the sleeve-holding section and the stress- applying section should be greater than the component being tested; b) plates A and B, each having a clearance hole in the centre to allow the plate to move a sample of a

36、 ceramic alignment split sleeve on the reference gauge. 6 61300-2-24 IEC:2010(E) Figure 1b Plate A and plate B Sleeve holding section Stress applying section Tapered section Fixed section A B C D H Figure 1a Reference gauge E G F IEC 1487/99 IEC 1488/99Figure 1 Apparatus used for screen testing of a

37、 ceramic alignment sleeve Table 1 shows the dimension of the reference gauge and the plate for the ceramic split sleeve. A dimension of the stress-applying section diameter (E) is shown for a commonly used ceramic alignment sleeve in Table 2. Table 1 Dimension example of the reference gauge and the

38、plate for the ceramic sleeve Reference For 1,25 mm gauge Dimension mm For 2,5 mm gauge Dimension mm Notes A 9 14 NOTE 2B 5 5 C 9 14 NOTE 2D NOTE 1 E 1,259 0 0,000 5 2,515 F NOTE3 G 20 20 H 2 2 NOTE 1 This diameter should be less than the inner diameter of the split sleeve. NOTE 2 Surface finish in t

39、his area Ra = 0,2 m. NOTE 3 Dimension F should be greater than dimension E, and less than sleeve D.61300-2-24 IEC:2010(E) 7 Table 2 Dimension example of a commonly used ceramic alignment sleeve Items For 1,25 mm Dimension mm For 2,5 mm Dimension mm Length 6,8 10,1 Outer diameter 1,62 3,2 Inner diame

40、ter (ref.) 1,246 2,49 Split section width 6,8 10,1 4 Procedure This test should be carried out under a 23 C 2 C environmental temperature condition. The procedure is as follows. a) Insert plate A into the reference gauge and set it at the fixed end of the reference gauge. b) Moisten the inside surfa

41、ce of a ceramic split sleeve sample with distilled water (for example using a cotton bud). Only touch the sleeve with suitable tools. c) The sample sleeve is inserted onto the sleeve-holding part and set just in front of the tapered part of the reference gauge. d) Insert plate B into the left-hand s

42、ide of the sample sleeve and move the sample sleeve onto the stress-applying part until the sample sleeve touches plate A (within approximately 1 s). e) The sample sleeve should be held for 3 s under the stressed state. f) After 3 s, stress applied to the sample sleeve is removed by moving plate A t

43、o the left- hand side (within approximately 1 s). g) In the course of the procedure from d) to f), samples without damage (breakage or crack) should be selected as acceptable sleeves. 5 Details to be specified The following details shall be specified depending on the sample sleeve size in the detail

44、 specification: diameter of sleeve-holding part of reference gauge (D); diameter of stress-applying part of reference gauge (E); length of sleeve-holding part (A) and stress-applying part (C); diameter of the center hole of plates A and B (F); deviations from test procedure. 8 61300-2-24 IEC:2010(E)

45、 Annex A (informative) Static fatigue for zirconia alignment sleeve A.1 Prediction of failure probability by static fatigue This annex applies primarily to 2,5 mm zirconia alignment sleeves supported by references 1 to 5 1) . For 1,25 mm zirconia sleeves, a comprehensive analysis is referenced 6 and

46、 the strength distribution is shown in Figure A.6. Micro-cracks essentially exist on the surface or inside of ceramics. Therefore, fracture due to static fatigue occurs in ceramics under lower stress than the characteristic strength of the materials because of crack propagation in ceramic materials

47、1 2. Assurance of reliable optical fibre connections requires the prediction of failure probability of the zirconia sleeves under working stress needed to align the ferrules. Assuming aligned ferrules of optical connectors, the zirconia sleeves are allowed to stand under a constant stress, as workin

48、g stress a . Based on the theories of Weibull statistics and slow crack growth for brittle materials, cumulative failure probability F of the zirconia sleeves suffering from working stress is given by the following equation: ln ln 1 1 1 ln + = a N a t N m F(A.1) with 2) ( / 0 e N m m V ) 2 ( 2 ) 2 (

49、 2 N IC K AY N where t ais the working time during which the working stress ais applied; m, V eand 0are the Weibull modulus, effective volume, and normalization constant to express the failure probability by the Weibull statistics theory, respectively; Y is the geometry constant; K ICis the critical stress intensity factor; A and N are crack propagation constants