1、BSI Standards PublicationOptical fibresPart 1-53: Measurement methods and test procedures Water immersion testsBS EN 60793-1-53:2014National forewordThis British Standard is the UK implementation of EN 60793-1-53:2014. It isidentical to IEC 60793-1-53:2014. It supersedes BS EN 60793-1-53:2002which i
2、s withdrawn.The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/1, Optical fibres and cables.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to inc
3、lude all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 82237 7ICS 33.180.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This Bri
4、tish Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2014.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60793-1-53:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60793-1-53 May 2014 ICS 33.180.10 Su
5、persedes EN 60793-1-53:2002 English Version Optical fibres - Part 1-53: Measurement methods and test procedures - Water immersion tests (IEC 60793-1-53:2014) Fibres optiques - Partie 1-53: Mthodes de mesure et procdures dessai - Essais dimmersion dans leau (CEI 60793-1-53:2014) Lichtwellenleiter - T
6、eil 1-53: Messmethoden und Prfverfahren - Eintauchen in Wasser (IEC 60793-1-53:2014) This European Standard was approved by CENELEC on 2014-03-12. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
7、 of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French,
8、German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Bel
9、gium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swede
10、n, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploita
11、tion in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60793-1-53:2014 E BS EN 60793-1-53:2014EN 60793-1-53:2014 - 2 - Foreword The text of document 86A/1529/CDV, future edition 2 of IEC 60793-1-53, prepared by SC 86A “Fibres and cables“ of IEC/TC 86 “Fibre optics“ was
12、 submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60793-1-53:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-12-12 latest date by which
13、 the national standards conflicting with the document have to be withdrawn (dow) 2017-03-12 This document supersedes EN 60793-1-53:2002. EN 60793-1-53 includes the following significant technical changes with respect to EN 60793-1-53:2002: a) Harmonizing the content with sectional specifications of
14、relevant fibre types; b) Extending the applicability of the standard to class C single-mode fibres. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such p
15、atent rights. Endorsement notice The text of the International Standard IEC 60793-1-53:2014 was approved by CENELEC as a European Standard without any modification. BS EN 60793-1-53:2014- 3 - EN 60793-1-53:2014 Annex ZA (normative) Normative references to international publications with their corres
16、ponding European publications The following documents, 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 an
17、y amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu Publication
18、 Year Title EN/HD Year IEC 60068-2-18 - Environmental testing - Part 2-18: Tests - Tests R and guidance: Water EN 60068-2-18 - IEC 60793-1-32 - Optical fibres - Part 1-32: Measurement methods and test procedures - Coating strippability EN 60793-1-32 - IEC 60793-1-40 (mod) 2001 Optical fibres - Part
19、1-40: Measurement methods and test procedures - Attenuation EN 60793-1-40 2003 IEC 60793-2-10 - Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres EN 60793-2-10 - IEC 60793-2-50 - Optical fibres - Part 2-50: Product specifications - Sectiona
20、l specification for class B single-mode fibres EN 60793-2-50 - IEC 60793-2-60 - Optical fibres - Part 2-60: Product specifications - Sectional specification for category C single-mode intraconnection fibres EN 60793-2-60 - BS EN 60793-1-53:2014 2 60793-1-53 IEC:2014 CONTENTS 1 Scope 5 2 Normative re
21、ferences 5 3 Apparatus 5 3.1 Water tank . 5 3.2 Other apparatus . 5 4 Sampling and specimens . 6 5 Procedure 6 5.1 General 6 5.2 Measurements . 6 Optical measurements 6 5.2.1Mechanical measurements . 6 5.2.25.3 Preconditioning 6 5.4 Conditioning . 6 5.5 Recovery . 6 6 Pass/fail criteria . 7 7 Result
22、s 7 7.1 Information to be provided with each test . 7 7.2 Information to be available upon request 7 8 Specification information . 7 BS EN 60793-1-53:201460793-1-53 IEC:2014 5 OPTICAL FIBRES Part 1-53: Measurement methods and test procedures Water immersion tests 1 Scope This part of IEC 60793 provi
23、des 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-mode fibres to withstand the environmental condition of immersion in
24、 distilled or demineralized water which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of immersion in water over a given period. This procedure is conducted in accordance with IEC 60068-2-18, Test R. NOTE The applicability of t
25、his 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 latest edition of the referenced document (including
26、any amendments) applies. IEC 60068-2-18, Environmental testing Part 2-18: Tests Test R and guidance: Water IEC 60793-1-32, Optical fibres Part 1-32: Measurement and test procedures Coating strippability IEC 60793-1-40:2001, Optical fibres Part 1-40: Attenuation measurement methods IEC 60793-2-10, Op
27、tical fibres Part 2-10: Product specifications 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 s
28、pecification for class C single-mode intraconnection fibres 3 Apparatus 3.1 Water tank The apparatus consists of a water tank filled with water. Use distilled, demineralized or de-ionized water which has a pH of between 5,0 and 8,0. 3.2 Other apparatus Additional apparatus may be necessary to perfor
29、m the examinations and measurements (or as specified in the detail specification). BS EN 60793-1-53:2014 6 60793-1-53 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 A
30、1d, and at least 2 000 m for fibre class B and C. The amount of the specimen outside of the tank 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 conditi
31、ons. Unless otherwise specified, the fibre sample should be loosely coiled and that the fibre ends are kept out of the water. The specimen may be coiled horizontally or vertically, with a minimum bend diameter of 150 mm to avoid any macrobend effects. A length of the control specimen shall be remove
32、d prior to the test to enable the completion of required mechanical measurements for comparison to measurements made after the test. 5 Procedure 5.1 General The specimen is placed in a tank which is filled with water held at 23 C 5 C, and held there for 30 days. The attenuation and coating strip for
33、ce of the specimen are then monitored. Conduct the procedure in accordance with IEC 60068-2-18, Test R, with the “head of water” being not applicable (the head of water is used to test for “water tightness” of electrotechnical products, but it is not required in this application). 5.2 Measurements O
34、ptical measurements 5.2.1Attenuation measurement shall be carried out at the wavelength specified in the relevant specification using either IEC 60793-1-40:2001, Annex B (insertion loss) or IEC 60793-1-40:2001, Annex C (backscattering) before, during (once the specimen has stabilized at the specifie
35、d temperature) and after the test. Attenuation changes shall be recorded. Other optical measurements may be required if specified in the relevant product specification. Mechanical measurements 5.2.2The fibre coating strip force shall be measured before and after the test, using the method described
36、in IEC 60793-1-32. The control specimen (see Clause 4) is used to evaluate the change in strippability. 5.3 Preconditioning If specified, precondition the specimen as required by the detail specification. 5.4 Conditioning Not applicable. 5.5 Recovery Unless otherwise required by the relevant specifi
37、cation, the specimen shall remain under standard atmospheric condition for recovery for a period greater than 12 h but not more than 48 h. The detail specification may call for measurements during recovery. If required, the detail specification shall specify the measurements to be taken and when to
38、take them. BS EN 60793-1-53:201460793-1-53 IEC:2014 7 6 Pass/fail criteria The applicable specification limits can be found in the relevant sectional specification of IEC 60793-2-10 for A1 fibres, IEC 60793-2-50 for B fibres and IEC 60793-2-60 for C fibres. 7 Results 7.1 Information to be provided w
39、ith each test date and title of test; identification of specimen; length of specimen; nominal wavelength(s) at which the test was performed; attenuation change; coating strip force; initial pH of the water. 7.2 Information to be available upon request description of all key equipment. 8 Specificatio
40、n information The detail specification shall specify the following information: pass/fail criteria; information to be reported; any deviations to the procedure that apply. _ BS EN 60793-1-53:2014This page deliberately left blankThis page deliberately left blankBSI is the national body responsible fo
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