1、 TIA-455-195-A-2003 APPROVED: NOVEMBER 26, 2003 REAFFIRMED: FEBRUARY 6, 2013 TIA-455-195-A (Revision of TIA-455-195) November 2003FOTP- 195 IEC-60793-1-21 Optical Fibres- Part 1-21: Measurement Methods and Test Procedures- Coating Geometry NOTICE TIA Engineering Standards and Publications are design
2、ed 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 their particular need. The existen
3、ce of such Standards and Publications shall not in any respect preclude any member or non-member of TIA from manufacturing or selling products not conforming to such Standards and Publications. Neither shall the existence of such Standards and Publications preclude their voluntary use by Non-TIA mem
4、bers, either domestically or internationally. Standards and Publications are adopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties
5、adopting the Standard or Publication. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the appli
6、cability of regulatory limitations before its use. (From Project No. 3-4253-RV1-RF1, formulated under the cognizance of the TIA TR-42 Telecommunications Cabling Systems, TR-42.12 Subcommittee on Optical Fibers and Cables). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Technology (b) there is
7、no assurance that the Document will be approved by any Committee of TIA or any other body in its present or any other form; (c) the Document may be amended, modified or changed in the standards development or any editing process. The use or practice of contents of this Document may involve the use o
8、f intellectual property rights (“IPR”), including pending or issued patents, or copyrights, owned by one or more parties. TIA makes no search or investigation for IPR. When IPR consisting of patents and published pending patent applications are claimed and called to TIAs attention, a statement from
9、the holder thereof is requested, all in accordance with the Manual. TIA takes no position with reference to, and disclaims any obligation to investigate or inquire into, the scope or validity of any claims of IPR. TIA will neither be a party to discussions of any licensing terms or conditions, which
10、 are instead left to the parties involved, nor will TIA opine or judge whether proposed licensing terms or conditions are reasonable or non-discriminatory. TIA does not warrant or represent that procedures or practices suggested or provided in the Manual have been complied with as respects the Docum
11、ent or its contents. If the Document contains one or more Normative References to a document published by another organization (“other SSO”) engaged in the formulation, development or publication of standards (whether designated as a standard, specification, recommendation or otherwise), whether suc
12、h reference consists of mandatory, alternate or optional elements (as defined in the TIA Engineering Manual, 4thedition) then (i) TIA disclaims any duty or obligation to search or investigate the records of any other SSO for IPR or letters of assurance relating to any such Normative Reference; (ii)
13、TIAs policy of encouragement of voluntary disclosure (see Engineering Manual Section 6.5.1) of Essential Patent(s) and published pending patent applications shall apply; and (iii) Information as to claims of IPR in the records or publications of the other SSO shall not constitute identification to T
14、IA of a claim of Essential Patent(s) or published pending patent applications. TIA does not enforce or monitor compliance with the contents of the Document. TIA does not certify, inspect, test or otherwise investigate products, designs or services or any claims of compliance with the contents of the
15、 Document. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE CONTENTS, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE OR USE, ITS MERCHANTABILITY AND ITS NONINFRINGEMENT OF ANY THIRD PARTYS INTELLECTUAL PR
16、OPERTY RIGHTS. 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 THE SAFETY OR HEALTH EFFECTS OF THE CONTENTS OR ANY PRODUCT OR SERVICE
17、 REFERRED TO IN THE DOCUMENT OR PRODUCED OR RENDERED TO COMPLY WITH THE CONTENTS. TIA SHALL NOT BE 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 CONSE
18、QUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), 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 D
19、AMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. FOREWARD With the adoption of international standard IEC 60793-1-21 (Optical Fibres Part 1-21: Measurement Methods and Test Procedures Coating Geometry) TIA-4
20、55-195-A supercedes the current TIA/EIA-455-195 (FOTP-195 Coating Geometry Measurement for Optical Fiber). This action was taken under the cognizance of the TIA-FO-4.6 Subcommittee on Optical Fibers. IEC 60793-1-21 adopted as TIA-455-195-A iCONTENTS FOREWORD ii INTRODUCTION .iv 1 Scope 1 2 Normative
21、 references .1 3 Overview of method1 4 Definitions3 5 Reference test method .3 6 Apparatus 3 7 Sampling and specimens3 7.1 Specimen length3 7.2 Specimen end face3 8 Procedure 3 9 Calculations .3 10 Results.4 11 Specification information 4 Annex A (normative) Requirements specific to method A Side-vi
22、ew light distribution .5 Annex B (normative) Requirements specific to method B Mechanical measurement .9 Bibliography .11 Figure A1 Schematic diagram of typical test equipment 5 Figure A.2 Side view of measurement set-up6 Figure B1 Top view of a typical electronic micrometer system 9 Table 1 Measure
23、ment methods 1 IEC 60793-1-21 adopted as TIA-455-195-A iiINTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 1-21: Measurement methods and test procedures Coating geometry FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comp
24、rising all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes Internatio
25、nal Standards. 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 with the IEC also participate in this preparation.
26、The 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 the IEC on technical matters express, as nearly as possible, an international conse
27、nsus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports
28、 or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence be
29、tween the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Atten
30、tion is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60793-1-21 has been prepared by subcommittee 86A: Fibres and
31、cables, of IEC technical committee 86: Fibre optics. This standard, together with the other standards in the IEC 60793-1-2X series, cancels and replaces the first edition of IEC 60793-1-2, of which it constitutes a technical revision. The text of this standard is based on the following documents: FD
32、IS Report on voting 86A/686/FDIS 86A/725/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. Annexes A and B form an integral part
33、of this standard.IEC 60793-1-21 adopted as TIA-455-195-A iiiIEC 60793-1-2X consists of the following parts, under the general title: Optical fibres: Part 1-20: Measurement methods and test procedures Fibre geometry Part 1-21: Measurement methods and test procedures Coating geometry Part 1-22: Measur
34、ement methods and test procedures Length measurement The committee has decided that the contents of this publication will remain unchanged until 2003. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. IEC 60793-1-21 adopted as TIA-455-195-A ivIN
35、TRODUCTION Publications in the IEC 60793-1 series concern measurement methods and test procedures as they apply to optical fibres. Within the same series several different areas are grouped, as follows: parts 1-10 to 1-19: General parts 1-20 to 1-29: Measurement methods and test procedures for dimen
36、sions parts 1-30 to 1-39: Measurement methods and test procedures for mechanical charac-teristics parts 1-40 to 1-49: Measurement methods and test procedures for transmission and optical characteristics parts 1-50 to 1-59: Measurement methods and test procedures for environmental characteristics. IE
37、C 60793-1-21 adopted as TIA-455-195-A 1OPTICAL FIBRES Part 1-21: Measurement methods and test procedures Coating geometry 1 Scope This part of IEC 60793 establishes uniform requirements for measuring the coating geometry of optical fibre. Coating geometry measurements are fundamental values that nee
38、d to be known for subsequent procedures such as cabling, connectorization, splicing, handling and for making other measurements. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For
39、 undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60793-1-20, Optical fibres Part 1-20: Measurement methods and test procedures Fibre geometry 3 Overview of method This standard gives four methods for measuring fibre geometry characteristics w
40、hich are given in terms of the following parameters: coating diameter; coating non-circularity; coating-cladding concentricity error. Table 1 Measurement methods Method Characteristics covered Fibre category(ies) covered Former designation A Side-view aAll All bIEC 60793-1-A3 B Mechanical Coating di
41、ameter and non-circularity All IEC 60793-1-A4 aFor certain coating parameters evaluation, the cladding diameter should be measured using this procedure. However, due to the relatively poor accuracy of the method, this value of cladding diameter cannot be considered as an alternative to the values ob
42、tained by the already established test methods for glass geometry, for which reference should be made to IEC 60793-1-20. BCoating-cladding concentricity error is not defined for category A4 fibre. Both methods are conducted off-line during inspection. Neither of them is suitable for on-line, in-proc
43、ess measurements. Information common to both measurements appears in clauses 2 to 10. See also annexes A and B, for methods A and B, respectively. IEC 60793-1-21 adopted as TIA-455-195-A 2IEC 60793-1-21 adopted as TIA-455-195-A 34 Definitions For the purpose of this part of IEC 60793, the following
44、definitions apply. 4.1 primary coating one or more layers of protective coating material applied to the fibre cladding surface during or after the drawing to preserve the cladding surface and to give a minimum amount of required protection (e.g. a 250 m protective coating) 4.2 secondary or “buffer“
45、coating one or more layers of coating material applied over one or more layers of primary coated fibres in order to give additional required protection or to arrange fibres together in a particular structure (e.g. a 900 m “buffer“ coating, “tight jacket“ or “ribbon coating“) 5 Reference test method
46、Method A is the reference test method (RTM), which is the one used to settle disputes. 6 Apparatus Annexes A and B include layout drawings and other equipment requirements for each of the methods A and B, respectively. 7 Sampling and specimens 7.1 Specimen length The specimen shall be a short length
47、 of fibre, or as specified in the detail specification. 7.2 Specimen end face Because the end faces of the specimen are not involved in the measurement itself, it is not necessary to have tight end-face requirements. 8 Procedure See annexes A and B for methods A and B, respectively. 9 Calculations S
48、ee annexes A and B for methods A and B, respectively. IEC 60793-1-21 adopted as TIA-455-195-A 410 Results The following information shall be provided with each measurement: date and title of measurement; identification and description of specimen; measurement results as required by the detail specif
49、ication. The following information shall be available upon request: length of specimen; measurement method used: A or B; description of measurement apparatus arrangement; details of computation technique; date and details of the latest calibration. 11 Specification information The detail specification shall specify the following information: type of fibre to be measured; failure or acceptance criteria; information to be reported; deviations to the procedure that apply. IEC 60793-1-21 ado
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1