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1、TIA TELECOMMUNICATIONS SYSTEMS BULLETIN ITM- 1 Characteristics of Large Flaws in Optical Fibers by Dynamic Tensile Testing with Censoring TSB-62- 1 Reaffirmed August 15,2002 ONOVEMBER 1994 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Teleconmiunications Industry Association represents the conmiunicat
2、ions sector of Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted without license from IHS -,-,- NOTICE TIA Engineering Standards a
3、nd Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his part
4、icular need. Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of TIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use
5、 by those other than TIA members, whether the standard is to be used either domestically or internationally. Standards, Publications and Bulletins are adopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA does not assume any liability t
6、o any patent owner, nor does it assume any obligation whatever to parties adopting the Standard, Publication, or Bulletin. Technical Bulletins are distinguished from TIA Standards or Documents, in that they contain a compilation of engineering data or information useful to the technical community, a
7、nd represent approaches to good engineering practices that are suggested by the formulating committee. This Bulletin is not intended to preclude or discourage other approaches that similarly represent good engineering practice, or that may be acceptable to, or have been accepted by, appropriate bodi
8、es. Parties who wish to bring other approaches to the attention of the formulating committee to be considered for inclusion in future revisions of this Bulletin are encouraged to do so. It is the intention of the formulating committee to review this document every five years, but it maybe revised an
9、d updated at any time as may be occasioned by changes in technology, industry practice, or government regulations, or for other appropriate reasons. (From Project No. 3-3182, formulated under the cognizance of the TIA FO-6.6 Subcommittee on Optical Fibers.) This Document was reaffirmed by the Teleco
10、mmunications Industry Association on August 15,2002. Published by OTELECOMMUNICATIONS INDUSTRY ASSOCIATION 1994 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENG
11、INEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1 -800-854-7 179) International (303-397-7956) or search online at http:/www.tiaonline.org/standards/search-n-order . c h All rights reserved Printed in U.S.A. Copyright Telecommunications Industry Association Provided by IH
12、S under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/11
13、11111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted without license from IHS -,-,- NOTICE OF DISCLAIMER AND LIMITATION OF LIABILITY The document to which this Notice is affixed has been prepared by one or more Engineering Committees of the Telec
14、ommunications Industry Association (“TIA”). TIA is not the author of the document contents, but publishes and claims copyright to the document pursuant to licenses and permission granted by the authors of the contents. TIA Engineering Committees are expected to conduct their affairs in accordance wi
15、th the TIA Engineering Manual (“Manual”), the current and predecessor versions of which are available at http:/www.tiaonline.orZr/standards/sfZr/engineering manual.ch. TIAS function is to administer the process, but not the content, of document preparation in accordance with the Manual and, when app
16、ropriate, the policies and procedures of the American National Standards Institute (“ANSI”). THE USE OR PRACTICE OF CONTENTS OF THIS DOCUMENT MAY INVOLVE THE USE OF INTELLECTUAL PROPERTY RIGHTS (“IPR), INCLUDING PENDING OR ISSUED PATENTS, OR COPYRIGHTS, OWNED BY ONE OR MORE PARTIES. TIA MAKES NO SEA
17、RCH OR INVESTIGATION FOR IPR. WHEN IPR CONSISTING OF PATENTS AND PUBLISHED PATENT APPLICATIONS ARE CLAIMED AND CALLED TO TIAS ATTENTION, A STATEMENT FROM THE HOLDER THEREOF IS REQUESTED, ALL IN ACCORDANCE WITH THE MANUAL. TIA TAKES NO POSITION WITH REFERENCE TO, AND DISCLAIMS ANY OBLIGATION TO INVES
18、TIGATE OR INQUIRE INTO, THE SCOPE OR VALIDITY OF ANY CLAIMS OF IPR. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE CONTENTS, ITS FITNESS OR APPROPRIATENESS FORA PARTICULAR PURPOSE PARTYS INTELLECTUAL PROPERTY RI
19、GHTS. TIA EXPRESSLY DISCLAIMS ANY AND ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENTS COMPLIANCE WITH ANY APPLICABLE STATUTE, RULE OR REGULATION. OR USE, ITS MERCHANTABILITY AND ITS NON-INFRINGEMENT OF ANY THIRD TIA SHALL NOT BE
20、 LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR INDIRECT, ARISING FROM OR RELATING TO ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE
21、), WHETHER BASED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE
22、 PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A
23、 TSBb2-L 94 m 3234600 0559523 417 TIAIEIA TELEC0M“I CATIONS SYSTEMS BULLETIN ITM-1 Characterization of Large Flaws in Optical Fibers by Dynamic Tensile Testing with Censoring NOVEMBER 1994 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Copyright Telecommunications Industry Association Provided by IHS under
24、 license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted without license from IHS -,-,- NOTCE TIA/ELA Engineering Standards and Publications are designed to serve the public interest through eliminating misun
25、derstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and Publications shall not in any respect
26、preclude any member or nonmember of WEiA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by those other than W E M members, whether the standard is to be used either dome
27、stically or internationally. Recommended Sandards, publications and Bulletins are adopted by TIA/EIA in accordance with the American Nationai Standards institute (ANSI) patent policy. By such action, TIAIEL4 does not assume any liability to any patent owner, nor does it assume any obligation whateve
28、r to parties adopting the Recommended Standard, Publication or Bulletin. Technid Bulletins are distinguished from W E M Recommended Standards or Interim Standards, in that they contain a compilation of engineering data or information useful to the technid community, and represent approaches to good
29、engineering practices that are suggested by the formukiting committee. This Bulletin i s not intended to preclude or discourage other approaches that similarly represent good engineering practice, or that may be acceptable to, or have been accepted by, appropriate Mes. Parties who wish to bring othe
30、r approaches to the attention of the fonnulating committee to be considered for inclusion in future misions of this Bulletin are encouraged to do so. It is the intention of the formulating committee to revise and update this Bulletin from time to time as may be occasioned by changes in technology, i
31、ndustry practice, or government regulations, or for other appropriate reasons. Published by -COMMUNICATIONS INDUSTRY ASSOCIATION i994 Standards and Technology Department 2001 Pennsylvania Ave. N.W., Washington, D.C. 20006 PRICE: Pease refer to the current Catalog of EU, JEDEC and TIA STANDARDS and E
32、NGI“G PUBLICATIONS or c a l l Global Eagineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) All rights reserved Printed in U.S.A. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie
33、Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA TSBb2-L 94 9 3234600 0559525 bT m PLEASE! DONT VIOLATE THE LAW! This document is copyrighted by the TIA and may not be reproduced without permission. OrgaaiZations may obtain permission
34、to reproduce a limited number of copies through entering into a license agreement with the EIA. Interested organizations should contact: EIA Standard Wes Office 2001 Penusybania Ave., N.W. W a s h i n g t o n , D.C. 20006 (202)457-4966 Requesting a copy of the agreement. Copyright Telecommunications
35、 Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A TSBb2-1 94 3234b00 0559526 526 TSB-62-1 ITM-1 Characterization of large
36、 flaws in optical fibers by dynamic tensile testing with censoring Contents 1 Introduction 2 Applicable documents 3 Apparatus 4 Sampling and specimens 5 Procedure 6 Calculations or interpretation of results 7 Documentation Annex A, Bend stress application example Annex 6, Evaluation with maximum lik
37、elihood Annex C, References Annex D, Comparison between this document and IEC or ITU/TS requirements 1 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction o
38、r networking permitted without license from IHS -,-,- EIA TSBb2-L 94 3234600 0557527 4b2 TSB-62-1 This page left blank. 2 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 M
39、DTNo reproduction or networking permitted without license from IHS -,-,- E I A TSB62-1 94 m 3231.1600 0559528 3 T W TSB-62-1 ITM-1 Characterization of large flaws in optical fibers by dynamic tensile testing with censoring Foreword This document comes from TIA Project No. 31 82, and was formulated u
40、nder the cognizance of TIA FO-6.6, Subcommittee on Optical Fibers and Materials. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted
41、 without license from IHS -,-,- E I A TSBb2-1 94 m 3234600 0559529 235 m TSB-62-1 This page left blank. 4 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproductio
42、n or networking permitted without license from IHS -,-,- EIA TSBb2-1 94 E 3234bOO 0559530 T57 TS 6-62- 1 1 Introduction 1.1 Intent This Informative Test Method (ITM) describes a method for characterizing the lower portion of the distribution of dynamic tensile failure stresses of a population of gla
43、ss optical fiber. The result is a probability curve that can be used as a guide in reliability design. The curve can also be used to validate assumptions relative to the proof test and other fiber handling procedures. 1.2 Scope The method is generally destructive. A sample of a population is tested.
44、 The accuracy of inferences that are drawn depends on the sampling frequency and the degree to which the sample is representative. The probability curve is presented in the format of a Weibull distribution. The validity of a Weibull assumption should, however, be tested. Such tests are outside the s
45、cope o f this method. The strength distribution can be inferred from the failure stress data with certain assumptions about the flaw growth mechanism and the parameters that describe it. These inferences are illustrated in the annexes, but are outside the scope of the method. This test method applie
46、s to a population characteristic that is not specifiable, at least at the present time. Therefore, this test method shall not be called out in any TIA specification document. 1.3 Background The method tests the strength of several hundreds of sections of fiber by applying dynamic tensile stress up t
47、o some predetermined level. The fraction of the total number of sections that fail and the stress levels at which failure occurs is recorded and summarized as a statistical distribution. This is very similar to FOTP-28. The main difference is that with this method, all sections are tested to a maxim
48、um, fixed stress, leading to failure in some specimens. Since not all specimens fail, this is called censored data. Other differences are the 5 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:24:59 MDTNo reproduction or networking permitted without license