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1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI British Standards WB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-44: T
2、ests Flexing of the strain relief of fibre optic devices BS EN 61300-2-44:2008 Incorporating Corrigendum 2009May Licensed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI National foreword This British Standard is the UK implementation of EN 61300-2-44:2008. It is id
3、entical to IEC 61300-2-44:2008. It supersedes BS EN 61300-2-44:2005 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting devices and passive components. A list of organizations rep
4、resented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 200 ISBN 978 0 580 ICS 33.180.20 Compliance with a British Standard cannot confer im
5、munity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on Amendments issued since publication Date Text affected BRITISH STANDARDBS EN 61300-2-44:2008 9 67639 0 2 2009February8 3 2009 Correction to CENELEC pagesMay1 Licen
6、sed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61300-2-44 NORME EUROPENNE EUROPISCHE NORM November 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr E
7、lektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-2-44:2008 E ICS 33.180.20 Supersedes EN 61300-2-44:2005 English version Fibre optic int
8、erconnecting devices and passive components - Basic test and measurement procedures - Part 2-44: Tests - Flexing of the strain relief of fibre optic devices (IEC 61300-2-44:2008) Dispositifs dinterconnexion et composants passifs fibres optiques - Procdures fondamentales dessais et de mesures - Parti
9、e 2-44: Essais - Flexion du serre-cble des dispositifs fibres optiques (CEI 61300-2-44:2008) Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prf- und Messverfahren - Teil 2-44: Prfungen - Biegen der Zugentlastung von Lichtwellenleiterbauteilen (IEC 61300-2-44:2008) This E
10、uropean Standard was approved by CENELEC on 2008-10-01. 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 without any alteration. Up-to-date lists and bibliographical refere
11、nces concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC me
12、mber into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Icelan
13、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI EN 61300-2-44:2008 - 2 - Fore
14、word The text of document 86B/2541/CDV, future edition 2 of IEC 61300-2-44, 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 and was approved by CENELEC as EN 61300-2-44 on 2008-10-01. This Euro
15、pean Standard supersedes EN 61300-2-44:2005. The specific changes from EN 61300-2-44:2005 include the diversification of the severity according to environmental categories and components types. The following dates were fixed: latest date by which the EN has to be implemented at national level by pub
16、lication of an identical national standard or by endorsement (dop) 2009-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-10-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61300-2-44:2008
17、was approved by CENELEC as a European Standard without any modification. _ BS EN 61300-2-44:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI - 3 - EN 61300-2-44:2008 Annex ZA (normative) Normative references to international publications with their corr
18、esponding European publications 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 any amendments) applies. NOTE When an inte
19、rnational publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 61300-1 -1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance EN 6130
20、0-1 20032) IEC 61300-3-1 -1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-1: Examinations and measurements - Visual examination EN 61300-3-1 20052) IEC 61300-3-3 -1) Fibre optic interconnecting devices and passive components - Basic test
21、 and measurement procedures - Part 3-3: Examinations and measurements - Active monitoring of changes in attenuation and return loss EN 61300-3-3 20032) IEC 61300-3-4 -1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-4: Examinations and me
22、asurements - Attenuation EN 61300-3-4 20012) 1) Undated reference. 2) Valid edition at date of issue. BS EN 61300-2-44:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI 2 61300-2-44 IEC:2008(E) CONTENTS 1 Scope.5 2 Normative references5 3 General descrip
23、tion.5 4 Apparatus.6 4.1 General .6 4.2 Optical source (S)7 4.3 Detector (D).7 4.4 Mounting fixture.7 4.5 Flex test machine or jig7 5 Procedure.7 5.1 Preparation of specimens 7 5.2 Preconditioning7 5.3 Initial measurements .7 5.4 Conditioning 8 5.5 Recovery.8 5.6 Final measurements 8 6 Severity8 Fig
24、ure 1 Apparatus for testing 6 Figure 2 Application of the load in the case of duplex cordage 7 Table 1 Severities 8 BS EN 61300-2-44:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI 61300-2-44 IEC:2008(E) 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIV
25、E COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-44: Tests Flexing of the strain relief of fibre optic devices 1 Scope This part of IEC 61300 specifies a test to determine the influence of a flexing under tensile load of the strain relief of fibre optic devices. The intension is to simulate
26、 the number of flexing which would typically be experienced during service. This test is applied to both single fibre cable and multiple fibre cable. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editi
27、on cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61300-1, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 1: General and guidance IEC 61300-3-1, Fibre optic interconne
28、cting devices and 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 test and measurement procedures Part 3-3: Examinations and measurements Active monitor
29、ing of changes in attenuation and return loss IEC 61300-3-4, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-4: Examinations and measurements Attenuation 3 General description The device under test is rotated 90o about an axis perpendicular to
30、the axis of the attached cable and in the case of ribbon cable, parallel to the width of the ribbon. This causes a flexing of the strain relief and cable close to the device under test. During the flexing, a tensile force, but no torque, is applied. BS EN 61300-2-44:2008 Licensed CopyChinese Univers
31、ity of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI 6 61300-2-44 IEC:2008(E) 4 Apparatus 4.1 General The apparatus for testing and the flexing patterns involved are presented in Figure 1. +90 +90 0 DUT Weight Tensile force 20 cm min. Source S Detector D IEC 1189/08 Figure 1a Overall view
32、of the testing apparatus 1 2 3 4 IEC 1275/04 Figure 1b Flexing patterns Key 1 bending counter-clockwise 2 returning to initial position 3 bending clockwise 4 returning to initial position S optical source D detector Figure 1 Apparatus for testing BS EN 61300-2-44:2008 Licensed CopyChinese University
33、 of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI 61300-2-44 IEC:2008(E) 7 In the case of duplex cordage or ribbon, the loads shall not be doubled and the cable shall be bent in the minor axis direction as shown in Figure 2. Figure 2 Application of the load in the case of duplex cordage Th
34、e equipment used is that indicated in 4.2 to 4.5. 4.2 Optical source (S) The recommended source shall be in accordance with IEC 61300-3-3 and IEC 61300-3-4 as appropriate. 4.3 Detector (D) The recommended detector shall be in accordance with IEC 61300-3-3 and IEC 61300-3-4 as appropriate. 4.4 Mounti
35、ng fixture The mounting fixture rigidly holds the fibre optic device under test in correct alignment during the test. If the device is a fibre optic connector, an adaptor or a receptacle may be used as a mounting fixture. The fixture shall not distort the device under test. The fixture shall allow t
36、he device under test to be connected to monitoring equipment. 4.5 Flex test machine or jig A machine or jig that can rotate the DUT 90o from a straight position while applying a load to the fibre or cable. 5 Procedure 5.1 Preparation of specimens Prepare and clean the specimen in accordance with the
37、 manufacturers instructions. Visually check (IEC 61300-3-1) that the attachment of the cable to the fibre optic device is not damaged. Fibre length: 0,2 m to 1 m Details to be specified 5.2 Preconditioning Pre-condition the specimen and all equipment for 2 h at the standard test conditions as define
38、d in IEC 61300-1, unless otherwise specified in the relevant specification. 5.3 Initial measurements Complete initial examinations and measurements on the specimen as required by the relevant specification. Duplex cordage Load IEC 1276/04 BS EN 61300-2-44:2008 Licensed CopyChinese University of Hong
39、 Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI 8 61300-2-44 IEC:2008(E) 5.4 Conditioning Install the device under test on the apparatus. Measure the attenuation (IEC 61300-3-4) of the device under test with the flexing arm in a vertical position. Apply the specified tensile load and apply the s
40、pecified number of flexes. Use gentle rotational movements, not exceeding 20 cycles/min. The dwell at each extreme shall be not greater than 5 s. Measure the change in attenuation (IEC 61300-3-3) during test. Stop the flexing with the flexing arm in vertical position. Remove the tensile force. 5.5 R
41、ecovery Allow the specimen to remain under standard test conditions for 2 h, as defined in IEC 61300-1, unless otherwise specified in the relevant specification. Clean the specimen in accordance with the manufacturers instructions. 5.6 Final measurements Remove the device from the apparatus and make
42、 final measurements, as defined by the relevant specification, to ensure that there is no permanent damage to the specimen. The results of the final measurement shall be within the limit established in the relevant specification. Visually check (IEC 61300-3-1) that the attachment of the cable to the
43、 fibre optic device is not damaged. 6 Severity Severity is specified by the magnitude of tensile force and the number of cycles to the right and left. Recommended values of the test parameters are given in Table 1: Table 1 Severities Category Component type Tensile force N Number of cycles C Connect
44、ors - Reinforced cable 2 100 C Passive components - Reinforced cable 2 30 U and E Connectors - Reinforced cable 5 100 U and E Passive components - Reinforced cable 5 30 O Passive components Reinforced jacketed cables Primary and secondary coated fibre 5 2 30 30 O Connectors Reinforced jacketed cable
45、s SFF connectors 8,9 5,9 100 a 100 a a Applied at 25 3 cm from cable entrance to plug. BS EN 61300-2-44:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI 61300-2-44 IEC:2008(E) 9 The relevant specification shall specify the following details: magnitude o
46、f tensile force; number of flexes; applicable optical fibre cable (type, length, etc.); initial examination and measurements and performance requirements; permitted change of attenuation during test; final examination and measurements and performance requirements; pass/fail decision criterion; devia
47、tions from test procedure. _ BS EN 61300-2-44:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI BS EN 61300-2-44:2008 Licensed CopyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI This page deliberately left blank Licensed Co
48、pyChinese University of Hong Kong, 13/06/2009 07:39, Uncontrolled Copy, (c) BSI BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. British Standards Inst
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