1、 TIA STANDARD FOTP-178 IEC-60793-1-32 Optical Fibres Part 1-32: Measurement Methods and Test Procedures Coating Stripability TIA-455-178-B (Revision of TIA/EIA-455-178-A) NOVEMBER 2003 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electr
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8、-177-B IEC-60793-1-43 Measurement Methods and Test Procedures Numerical Aperture Standard should be submitted to TIA. (From Standards Proposal No. 3-3494-RV2, formulated under the cognizance of the TIA FO-4.6 Subcommittee on Optical Fibers.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2003
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23、 U.S.A. or call U.S.A. and Canada 1-800-854-7179, International (303) 397-7956 IEC 60793-1-32 adopted as TIA-455-178-B iFOREWORD This document, which is an adoption of the IEC Standard, 60793-1-32, replaces the existing FOTP-178: Measurement of Strip Force for Mechanically Removing Coatings From Opt
24、ical Fibers, with the new title: Optical Fibres Part 1-32: Measurement Methods and Test Procedures Coating Stripability. This action was taken under the cognizance of FO-4.6. 60793-1-32 adopted as TIA-455-178-B iiCONTENTS FOREWORDiii INTRODUCTION.v 1 Scope and object. 1 2 Normative references 1 3 Ap
25、paratus 1 3.1 Tensile equipment 1 3.2 Load cell 2 3.3 Transducer amplifier . 2 3.4 Stripping tool 2 3.5 Fibre guide . 2 4 Sample preparation . 3 4.1 Representative specimen 3 4.2 Strip length. 3 5 Procedure .3 5.1 Introduction 3 5.2 Stripping rate 4 5.3 Preconditioning. 4 5.4 Calibrating the transdu
26、cer amplifier. 4 5.5 Loading the test sample 4 5.6 Stripping the coating. 4 6 Calculations 4 6.1 Calculation of the reported value for a specimen . 4 6.2 Calculation for the value of a piece . 4 7 Documentation 5 8 Specification information 6 Figure 1 Length of fibre to be stripped . 3 Figure 2 Exam
27、ple of test arrangement . 6 IEC 60793-1-32 adopted as TIA-455-178-B iiiINTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 1-32: Measurement methods and test procedures Coating strippability FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for s
28、tandardization comprising 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 p
29、ublishes International 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
30、 this preparation. 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
31、international consensus 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
32、, technical reports 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
33、. Any divergence between 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
34、standards. 6) Attention 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 60793-1-32 has been prepared by subcommitt
35、ee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. This standard, together with the other standards in the IEC 60793-1-3X series, cancels and replaces the second edition of IEC 60793-1-3, of which it constitutes a technical revision. The text of this standard is based on the fol
36、lowing documents: FDIS Report on voting 86A/667/FDIS 86A/691/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 3. 60793-1-32 adopted
37、 as TIA-455-178-B ivIEC 60793-1-3X consists of the following parts, under the general title: Optical fibres: Part 1-30: Measurement methods and test procedures Fibre proof test Part 1-31: Measurement methods and test procedures Tensile strength Part 1-32: Measurement methods and test procedures Coat
38、ing strippability Part 1-33: Measurement methods and test procedures Stress corrosion susceptibility Part 1-34: Measurement methods and test procedures Fibre curl The committee has decided that the contents of this publication will remain unchanged until 2003-12. At this date, the publication will b
39、e reconfirmed; withdrawn; replaced by a revised edition, or amended. IEC 60793-1-32 adopted as TIA-455-178-B vINTRODUCTION 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 groupe
40、d, as follows: parts 1-10 to 1-19: General parts 1-20 to 1-29: Measurement methods and test procedures for dimensions parts 1-30 to 1-39: Measurement methods and test procedures for mechanical characteristics parts 1-40 to 1-49: Measurement methods and test procedures for transmission and optical ch
41、aracteristics parts 1-50 to 1-59: Measurement methods and test procedures for environmental charac-teristics. 60793-1-32 adopted as TIA-455-178-B viIEC 60793-1-32 adopted as TIA-455-178-B 1OPTICAL FIBRES Part 1-32: Measurement methods and test procedures Coating strippability 1 Scope and object This
42、 part of IEC 60793 is intended primarily for testing either fibres as produced by a fibre manufacturer or subsequently overcoated (tight buffered) using various polymers. The test can be performed either on fibres as produced or after exposure to various environments. This test applies to A1, A2, A3
43、 and B fibres. The object of this standard is to establish uniform requirements for the mechanical characteristic coating strippability. This test quantifies the force required to mechanically remove the protective coating from optical fibres along their longitudinal axis. This test is not intended
44、as a means to maximize fibre strength after the coating is removed nor is it intended to specify the best conditions for field stripping of optical fibres. This test is designed for optical fibres having polymeric coatings with nominal outer diameters in the range of 250 m to 900 m. Application of t
45、his method to fibres with outer coating diameters outside the range of 230 m to 930 m is not recommended. 2 Normative references None. 3 Apparatus 3.1 Tensile equipment Use a suitable device, for example a vertical tensile tester, which provides relative motion between the test fibre and a stripping
46、 tool and is capable of imparting constant motion at the velocity found in 5.2, without jerking the fibre under test or the stripping tool. Use a device capable of providing relative motion in two directions to allow resetting. Provide suitable means for clamping and maintaining the stripping tool b
47、lades perpendicular to the fibre axis or in a position that prevents fibre bending, and for securing one end of the test fibre. To prevent fibre breakage, secure the fibre at the clamping point without stressing the fibre excessively. Examples of test arrangements are shown in figure 2. 60793-1-32 a
48、dopted as TIA-455-178-B 23.2 Load cell Use any appropriate device that is capable of sensing the force imparted to the fibre during the removal of the fibre coating. 3.3 Transducer amplifier This device receives signals from the load cell and indicates the tensile force on the test fibre up to the p
49、oint when the coating is stripped off. It provides a read-out that is continuous, such as a strip chart recorder, and which provides sufficient information to calculate the maximum and average forces and the amplitude and frequencies of any oscillations in the force during stripping. The accuracy of the force measurement shall be stated in the detail specification. 3.4 Stripping tool 3.4.1 Because the results from this test are strongly dependent upon the design of tool used, it is important that t
