1、 IEC 60793-1-52 Edition 2.0 2014-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibres Part 1-52: Measurement methods and test procedures Change of temperature tests Fibres optiques Partie 1-52: Mthodes de mesure et procdures dessai Essais de variations de temprature IEC 60793-1-52:2014-02(E
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19、ebstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60793-1-52 Edition 2.0 2014-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibres Part 1-52: Measurement methods and test procedures Change of tem
20、perature tests Fibres optiques Partie 1-52: Mthodes de mesure et procdures dessai Essais de variations de temprature INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE G ICS 33.180.10 PRICE CODE CODE PRIX ISBN 978-2-8322-1376-6 Registered trademark of the Internatio
21、nal Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 60793-1
22、-52 IEC:2014 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references 5 3 Apparatus 5 3.1 Chamber 5 3.2 Other apparatus . 5 4 Sampling and specimens . 6 5 Procedure 6 5.1 General 6 5.2 Optical measurements . 6 5.3 Conditioning . 6 5.4 Recovery . 7 6 Pass/fail criteria . 7 7 Results 7 7.1 Information t
23、o be provided with each test . 7 7.2 Information to be available upon request 7 8 Specification information . 7 60793-1-52 IEC:2014 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 1-52: Measurement methods and test procedures Change of temperature tests FOREWORD 1) The Internationa
24、l Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic f
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33、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 the correct application of this publication. 9) Attention is drawn to the possibility that some of the elemen
34、ts 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. International Standard IEC 60793-1-52 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. This second ed
35、ition cancels and replaces the first edition, published in 2001, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: harmonizing the content with sectional specifications of relevant fibre types; extending the
36、applicability of the document to class C single-mode fibres. 4 60793-1-52 IEC:2014 The text of this standard is based on the following documents: CDV Report on voting 86A/1528/CDV 86A/1574/RVC Full information on the voting for the approval of this standard can be found in the report on voting indic
37、ated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 60793 series, published under the general title Optical fibres, can be found on the IEC website. The committee has decided that the contents of this publicatio
38、n will remain unchanged until the stability date indicated on the IEC web site under “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. IMPORTANT The colour inside logo on t
39、he cover page of 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. 60793-1-52 IEC:2014 5 OPTICAL FIBRES Part 1-52: Measurement methods and test proced
40、ures Change of temperature tests 1 Scope This part of IEC 60793 provides a practical method for evaluating fibre performance in a defined environment. The purpose of this standard is to define a test that determines the suitability of sub-category A1a to A1d multimode fibres and class B and C single
41、-mode fibres to withstand the environmental condition of change in temperature which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of change of temperature over a given period. This procedure is conducted in accordance with IEC
42、 60068-2-14, Test Nb. NOTE The applicability of this test to other fibre categories is under study. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the late
43、st edition of the referenced document (including any amendments) applies. IEC 60068-2-14, Environmental testing Part 2-14: Tests Test N: Change of temperature IEC 60793-1-40:2001, Optical fibres Part 1-40: Attenuation measurement methods IEC 60793-2-10, Optical fibres Part 2-10: Product specificatio
44、ns Sectional specification for category A1 multimode fibres IEC 60793-2-50, Optical fibres Part 2-50: Product specifications Sectional specification for class B single-mode fibres IEC 60793-2-60, Optical fibres Part 2-60: Product specifications Sectional specification for class C single-mode intraco
45、nnection fibres 3 Apparatus 3.1 Chamber The apparatus consists of an environmental chamber in accordance with IEC 60068-2-14, Test Nb. The chamber shall be capable of housing the specimen and of allowing measurement during conditioning. It shall also be capable of maintaining the specified temperatu
46、res within the specified tolerances. Forced air circulation may be used to maintain homogeneous conditions. The chamber and accessories shall be constructed and arranged in such a manner as to avoid condensation dripping on the specimen. 3.2 Other apparatus Additional apparatus may be necessary to p
47、erform the examinations and measurements (or as specified in the detail specification). 6 60793-1-52 IEC:2014 4 Sampling and specimens To ensure the required repeatability on optical measurements, the length of the specimen shall be at least 1 000 m for fibre sub-categories A1a to A1d, and at least
48、2 000 m for fibre class B and C. The amount of the specimen outside of the test chamber shall be minimized, and if it exceeds 10 % of the overall specimen length, this should be reported. The preparation of the specimen shall have no detrimental effect on the fibre whilst under test conditions. Unle
49、ss otherwise specified, the fibre sample should be loosely coiled and dusted with a material such as talcum powder, to allow the coils to move freely against each other. The specimen may be coiled horizontally or vertically, with a minimum bend diameter of 150 mm to avoid any macrobend effects. A control length of the specimen shall be removed prior to the test to enable the completion of required m
