1、BSI Standards PublicationFibre optic interconnecting devices and passive components Basic test and measurement proceduresPart 2-7: Tests Bending momentBS EN 61300-2-7:2013National forewordThis British Standard is the UK implementation of EN 61300-2-7:2013. It is identical to IEC 61300-2-7:2013. It s
2、upersedes BS EN 61300-2-7:1997 which is withdrawn.The UK participation in its preparation was entrusted by TechnicalCommittee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre opticinterconnecting devices and passive components.A list of organizations represented on this committee can be obtaine
3、d onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 75317 6ICS 33.180.20Compliance with a B
4、ritish Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 61300-2-7:2013EUROPEAN STANDARD E
5、N 61300-2-7 NORME EUROPENNE EUROPISCHE NORM July 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of e
6、xploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-2-7:2013 E ICS 33.180.20 Supersedes EN 61300-2-7:1997 English version Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-7: Tests - Bending mome
7、nt (IEC 61300-2-7:2013) Dispositifs dinterconnexion et composants passifs fibres optiques - Procdures fondamentales dessais et de mesures - Partie 2-7: Essais - Moment de flexion (CEI 61300-2-7:2013) Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prf- und Messverfahren -
8、 Teil 2-7: Prfungen - Biegemoment (IEC 61300-2-7:2013) This European Standard was approved by CENELEC on 2013-06-12. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard withou
9、t 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, German). A version in any othe
10、r 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, Belgium, Bulgaria, Croatia, Cypru
11、s, 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, Sweden, Switzerland, Turkey and the
12、 United Kingdom. BS EN 61300-2-7:2013EN 61300-2-7:2013 - 2 - Foreword The text of document 86B/3579A/FDIS, future edition 2 of IEC 61300-2-7, prepared by SC 86B, “Fibre optic interconnecting devices and passive components”, of IEC TC 86, “Fibre optics” was submitted to the IEC-CENELEC parallel vote
13、and approved by CENELEC as EN 61300-2-7:2013. 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) 2014-03-12 latest date by which the national standards conflicting with the
14、document have to be withdrawn (dow) 2014-06-12 This document supersedes EN 61300-2-7:1997. EN 61300-2-7:2013 includes the following significant technical changes with respect to EN 61300-2-7:1997: a) a complete reconsideration of the entire document, including additional normative references; b) cla
15、rification of the device under test (DUT); c) clarification of the relationship between severities, performance categories and the DUT. 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 responsib
16、le for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61300-2-7:2013 was approved by CENELEC as a European Standard without any modification. BS EN 61300-2-7:2013- 3 - EN 61300-2-7:2013 Annex ZA (normative) Normative references to internation
17、al publications with their corresponding 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
18、referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 61300-3-1 - Fibre optic interconnecting devices and passive components - Bas
19、ic test and measurement procedures - Part 3-1: Examinations and measurements - Visual examination EN 61300-3-1 - IEC 61300-3-3 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-3: Examinations and measurements - Active monitoring of changes
20、 in attenuation and return loss EN 61300-3-3 - IEC 61300-3-4 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-4: Examinations and measurements - Attenuation EN 61300-3-4 - BS EN 61300-2-7:2013 2 61300-2-7 IEC:2013 CONTENTS 1 Scope . 5 2 No
21、rmative references . 5 3 General description 5 4 Apparatus . 5 4.1 Design for a 1 piece or 3 piece DUT . 5 4.2 Design for a 2 piece DUT 6 4.3 Optical measurements . 7 5 Procedure. 7 5.1 Preconditioning . 7 5.2 Initial examinations and measurements . 7 5.3 Conditioning for a 1 piece or 3 piece DUT .
22、7 5.4 Conditioning for a 2 piece DUT 7 5.5 Recovery . 8 5.6 Final examinations and measurements 8 6 Severity 8 7 Details to be specified 9 Annex A (informative) Example for a bending moment test method for splices . 10 Figure 1 Test apparatus to apply a bending moment to a 1 piece or 3 piece DUT. 6
23、Figure 2 Test apparatus to apply a bending moment to a 2 piece DUT . 7 Figure A.1 Example for a bending moment test set-up for splices 10 Table 1 Relationship between severities, performance categories and DUT . 8 Table 2 Severities for an 1 piece or 3 piece DUT . 9 Table 3 Severities for an 2 piece
24、 DUT 9 BS EN 61300-2-7:201361300-2-7 IEC:2013 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-7: Tests Bending moment 1 Scope This part of IEC 61300 details a procedure for determining the suitability of a fibre optic device to withstand the
25、environmental condition of a bending moment which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of a bending moment. The bending moment may result in effects that would destroy functional utility, cause loss of physical strengt
26、h, and cause changes in other important mechanical properties. Degradation of optical properties may also occur. The specimen may be a component, a connector set, a splice or other device combination intended for fibre optic usage. 2 Normative references The following documents, in whole or in part,
27、 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 61300-3-1, Fibre optic interconnecting devices a
28、nd passive components Basic test and measurement procedures Part 3-1: Examinations and measurements Visual examination IEC 61300-3-3, Fibre optic interconnecting devices and passive components Basic tests and measurement procedures Part 3-3: Examinations and measurements Active monitoring of changes
29、 in attenuation and return loss IEC 61300-3-4, Fibre optic interconnecting devices and passive components Basic tests and measurement procedures Part 3-4: Examinations and measurements Attenuation 3 General description The specimen is placed in an apparatus and subjected to a bending moment which is
30、 maintained at a given temperature for a specified duration, as specified in the relevant specification. The bending moment is smoothly applied to the specimen so as to bend its longitudinal axis. 4 Apparatus 4.1 Design for a 1 piece or 3 piece DUT This design is suitable for specimens which consist
31、 of one part, like splices. The apparatus consists of the following elements: a) two steel rods placed at an appropriate distance in from the extreme ends of the DUT; BS EN 61300-2-7:2013 6 61300-2-7 IEC:2013 b) a steel finger with a defined endface radius which is placed in the middle of the suppor
32、ted DUT; c) a force generator capable of smoothly applying the specified force at the specified rate to the steel finger; d) an optional clamping device to fix the DUT; e) additional measuring equipment. If the specimen has to operate during the test, then additional equipment and operating conditio
33、ns shall be specified in the relevant specification. An example of an apparatus is shown in Figure 1. Rigid plateCBAForce FDDUTFigure 1 Test apparatus to apply a bending moment to a 1 piece or 3 piece DUT 4.2 Design for a 2 piece DUT This design is suitable for specimens which consist of two parts,
34、like connector sets. The two parts are joined together. The apparatus consists of the following elements: a) a clamping device on which the DUT, Part 1 is placed; b) a steel finger with a defined endface radius which is placed at the end of the DUT, Part 2; c) a force generator capable of smoothly a
35、pplying the specified force at the specified rate to the steel finger; d) additional measuring equipment. If the specimen has to operate during the test, then additional equipment and operating conditions shall be specified in the relevant specification. An example of an apparatus is shown in Figure
36、 2. IEC 956/13 BS EN 61300-2-7:201361300-2-7 IEC:2013 7 BAForce FDUT Part 2DUT Part 1Clamping deviceClamping deviceEFigure 2 Test apparatus to apply a bending moment to a 2 piece DUT 4.3 Optical measurements Where active monitoring is specified, measuring equipment specified in IEC 61300-3-3 shall b
37、e connected to the specimen for monitoring optical performance during the test. The optical source and detector used to measure changes in attenuation shall comply with those specified in IEC 61300-3-4. 5 Procedure 5.1 Preconditioning Maintain the specimen under standard atmospheric condition (room
38、temperature condition) for a minimum of 2 h. Clean the specimen according to the manufacturers instructions. 5.2 Initial examinations and measurements Complete initial examinations and measurements as required by the relevant specification. 5.3 Conditioning for a 1 piece or 3 piece DUT a) Apply the
39、DUT on the steel rods and securely clamp them, if necessary. b) Smoothly apply a force to the steel finger at the middle of the DUT and at the values specified in the relevant specification. c) Maintain the force for 10 s minimum. d) If required in the relevant specification, optical measurements (i
40、.e. attenuation, return loss) shall be performed and the results shall be collected. e) Where optical measurements are required during the test, measurements shall be made in accordance with IEC 61300-3-3. The relevant specification shall define the measurements and period(s) during testing after wh
41、ich they shall be carried out. The measurements shall not cause any change to the test conditions. 5.4 Conditioning for a 2 piece DUT a) Properly join the two parts of the DUT together, according to the manufacturers instruction. IEC 957/13 BS EN 61300-2-7:2013 8 61300-2-7 IEC:2013 b) Securely clamp
42、 DUT, Part 1. c) Smoothly apply a force to DUT, Part 2 at the specified point of application and at the values specified in the relevant specification. d) Maintain the force for 10 s minimum. e) If required in the relevant specification, optical measurements (i.e. attenuation, return loss) shall be
43、performed and the results shall be collected. f) Where optical measurements are required during the test, measurements shall be made in accordance with IEC 61300-3-3. The relevant specification shall define the measurements and period(s) during testing after which they shall be carried out. The meas
44、urements shall not cause any change to the test conditions. 5.5 Recovery Allow the specimen to remain under standard atmospheric conditions for a period of 10 min. 5.6 Final examinations and measurements On completion of the test, remove all fixtures. Clean the mechanical and optical alignment parts
45、 of the specimen according to the manufacturers instructions. Take final measurements as required by the relevant specification. If specified, visually examine the specimen in accordance with IEC 61300-3-1 and take any measurements specified to ensure that there is no permanent damage. 6 Severity Th
46、e severities for both methods are determined as indicated in Table 1. Table 1 Relationship between severities, performance categories and DUT DUT Operating environment Force F N Remark 1 piece or 3 piece DUT: Mechanical splices and closures Controlled C Uncontrolled U and O 2 10 For mechanical splic
47、es For closures Extreme E Aerial A Ground G Subterranean S 2 piece DUT: Connectors Controlled C Uncontrolled U and O 10 Extreme E The severity shall be given in the relevant specification. The severities according to Table 2 or Table 3 may be used for the procedure. BS EN 61300-2-7:201361300-2-7 IEC
48、:2013 9 Table 2 Severities for an 1 piece or 3 piece DUT Force F N Diameter A mm Radius B mm Diameter C mm Distance D mm Remark 2 10 30 5 The point of application shall be at the ends of the rigid part of the DUT minus 2 mm For mechanical splices 10 10 30 5 The point of application shall be at the e
49、nds of the rigid part of the DUT minus 2 mm For closures Table 3 Severities for an 2 piece DUT Force F N Diameter A mm Radius B mm Distance E mm 10 10 30 The point of application shall be at the end of the rigid part of the DUT part two minus 2 mm 7 Details to be specified The following details, as applicable, shall be specified in the relevant specification: a) Force F b) Diameter A c) Diameter B d) Diameter C e) Distance D (if applicable) f) Distance E (if a
