1、 IEC 60793-1-50 Edition 2.0 2014-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibres Part 1-50: Measurement methods and test procedures Damp heat (steady state) tests Fibres optiques Partie 1-50: Mthodes de mesure et procdures dessai Essais de chaleur humide (tat continu) IEC 60793-1-50:20
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19、nts - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60793-1-50 Edition 2.0 2014-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibres Part 1-50: Measurement methods and test procedures Damp h
20、eat (steady state) tests Fibres optiques Partie 1-50: Mthodes de mesure et procdures dessai Essais de chaleur humide (tat continu) INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE H ICS 33.180.10 PRICE CODE CODE PRIX ISBN 978-2-8322-1853-2 Registered trademark of
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22、side 2 IEC 60793-1-50:2014 IEC 2014 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references 5 3 Apparatus 6 3.1 Chamber . 6 3.2 Humidifier . 6 3.3 Other apparatus 6 4 Sampling and specimens . 6 5 Procedure 6 5.1 General . 6 5.2 Optical measurements 6 5.3 Mechanical measurements 7 5.4 Preconditioning
23、. 7 5.5 Conditioning 7 5.6 Recovery 7 6 Pass/fail criteria . 7 7 Results 7 7.1 Information to be provided with each test 7 7.2 Information to be available upon request . 8 8 Specification information . 8 IEC 60793-1-50:2014 IEC 2014 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 1
24、-50: Measurement methods and test procedures Damp heat (steady state) tests FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote i
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33、t, 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 publications is indispensable for the c
34、orrect 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. International Standard IEC 60793-1-50 has been prep
35、ared by subcommittee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. This second edition 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 previou
36、s edition: harmonization of the content with sectional specifications of relevant fibre types; extension of the applicability of the standard to class C single-mode fibres. 4 IEC 60793-1-50:2014 IEC 2014 The text of this standard is based on the following documents: CDV Report on voting 86A/1526/CDV
37、 86A/1572/RVC 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 in the IEC 60793 series, published under the gene
38、ral title Optical fibres, 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 “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the pub
39、lication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the 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
40、this document using a colour printer. IEC 60793-1-50:2014 IEC 2014 5 OPTICAL FIBRES Part 1-50: Measurement methods and test procedures Damp heat (steady state) tests 1 Scope This part of IEC 60793 provides a practical method for evaluating fibre performance in a defined environment. The purpose of t
41、his standard is to determine the suitability of optical fibre sub-category A1a to A1d multimode fibres and class B and C single-mode fibres to withstand the environmental condition of high humidity and high temperature which may occur in actual use, storage and/or transport. The test is primarily in
42、tended to permit the observation of effects of high humidity at constant temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-78, Test Cab. NOTE The applicability of this test to other fibre categories is under study. 2 Normative references The following docume
43、nts, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-78, Environment
44、al testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC 60793-1-31, Optical fibres Part 1-31: Measurement methods and test procedures Tensile strength IEC 60793-1-32, Optical fibres Part 1-32: Measurement and test procedures Coating strippability IEC 60793-1-33, Optical fibres Part 1-33: M
45、easurement methods and test procedures Stress corrosion susceptibility IEC 60793-1-40:2001, Optical fibres Part 1-40: Attenuation measurement methods IEC 60793-2-10, Optical fibres Part 2-10: Product specifications Sectional specification for category A1 multimode fibres IEC 60793-2-50, Optical fibr
46、es 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 intraconnection fibres 6 IEC 60793-1-50:2014 IEC 2014 3 Apparatus 3.1 Chamber The apparatus con
47、sists of an environmental chamber in accordance with IEC 60068-2-78, Test Cab. The chamber shall be capable of housing the specimen and of allowing access for measurement during conditioning. It shall also be capable of maintaining the specified temperature and humidity within the specified toleranc
48、es. 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 Humidifier De-mineralized or de-ionized water is used to obtain the specified humidity. No
49、rust or corrosion contaminants shall be imposed on the specimen by the test facility. The water added to the humidifier shall be controlled according to the manufacturers instructions. 3.3 Other apparatus Additional apparatus may be necessary to perform the examinations and measurements (or as specified in the detail specification). 4 Sampling and specimens For optical measurements, the
