1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationFibre optic interconnecting devices and passive components Basic test and measurement proceduresPart 2-5 : Tests TorsionBS EN 61300-2-5:2011National forewordThis British Standard
2、 is the UK implementation of EN 61300-2-5:2011. It is identical to IEC 61300-2-5:2009. It supersedes BS EN 61300-2-5:2002,which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting device
3、s and passive components.A list of organizations represented 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 2011ISBN 978 0 580 60018 0 ICS 33
4、.180.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2011.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61300-2
5、-5:2011EUROPEAN STANDARD EN 61300-2-5 NORME EUROPENNE EUROPISCHE NORM May 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011
6、CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-2-5:2011 E ICS 33.180.20 Supersedes EN 61300-2-5:2002English version Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2
7、-5: Tests - Torsion (IEC 61300-2-5:2009) Dispositifs dinterconnexion et composantspassifs fibres optiques - Procdures fondamentales dessais et de mesures - Partie 2-5: Essais - Torsion (CEI 61300-2-5:2009) Lichtwellenleiter -Verbindungselemente und passive Bauteile - Grundlegende Prf- und Messverfah
8、ren - Teil 2-5: Prfungen - Torsion (IEC 61300-2-5:2009) This European Standard was approved by CENELEC on 2011-03-18. 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 witho
9、ut any alteration. Up-to-date lists and bibliographical references 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 languag
10、e made by translation under the responsibility of a CENELEC member 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, Croatia, Cyprus, the Czech Republ
11、ic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61300-2-5:2011EN 61300-2-5:2011 Foreword Th
12、e text of document 86B/2774/FDIS, future edition 3 of IEC 61300-2-5, 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 61300-2-5 on 2011-03-18. This European Sta
13、ndard supersedes EN 61300-2-5:2002. Specific technical changes from EN 61300-2-5:2002 are as follows: the title was changed; the procedure was reconsidered; the figure of closure test set-up was added; the severity of the test was reconsidered according to the component. Attention is drawn to the po
14、ssibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of
15、 an identical national standard or by endorsement (dop) 2011-12-18 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-03-18 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61300-2-5:2009 was approved
16、 by CENELEC as a European Standard without any modification. _ BS EN 61300-2-5:2011EN 61300-2-5:2011 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this
17、 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 international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
18、 Publication Year Title EN/HD Year IEC 61300-1 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance EN 61300-1 - IEC 61300-3-1 - Fibre optic interconnecting devices and passive components - Basic test and measurement proc
19、edures - 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 in attenuation and return l
20、oss 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 - IEC 61300-3-6 - Fibre optic interconnecting devices and passive components - Basic test and mea
21、surement procedures - Part 3-6: Examinations and measurements - Return loss EN 61300-3-6 - BS EN 61300-2-5:201161300-2-5 IEC:2009(E) CONTENTS 1 Scope.5 2 Normative references 5 3 General description .5 4 Apparatus5 4.1 General . 5 4.2 Mounting fixture . .6 4.3 Cable clamp . 6 4.4 Weights .6 4.5 Opti
22、cal source and detector. 7 5 Procedure .7 5.1 Preparation of specimens .7 5.2 Pre-conditioning . .7 5.3 Mount the device under test . .7 5.4 Measure the attenuation .7 5.5 Apply cable load. .7 5.6 Measure the attenuation .7 5.7 Twist the cable .7 5.8 Test pressure .7 5.9 Monitoring attenuation. .8 5
23、.10 Final measurements and examinations . .8 6 Severity. 8 7 Details to be specified . .9 Figure 1 Component or device test set-up. 6 Figure 2 Closure test set-up.6 Table 1 Severity levels8 BS EN 61300-2-5:201161300-2-5 IEC:2009(E) 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC T
24、EST AND MEASUREMENT PROCEDURES Part 2-5: Tests Torsion 1 Scope The purpose of this part of IEC 61300 is to determine the ability of the cable attachment element of the device under test to withstand torsional loads, while under tension, as might be experienced during installation and normal service.
25、 The scope of the test also includes those elements designed for ribbon cables. 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 re
26、ferenced document (including any amendments) applies. IEC 61300-1, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 1: General guidance IEC 61300-3-1, Fibre optic interconnecting devices and passive components Basic test and measurement procedures
27、 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 monitoring of changes in attenuation and return loss IEC 61300-3-4, Fibre optic i
28、nterconnecting devices and passive components Basic test and measurement procedures Part 3-4: Examinations and measurements Attenuation IEC 61300-3-6, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-6: Examinations and measurements Return loss
29、3 General description The cable-to-device interface, while under a specified tension, is subjected to a torsional load or twisting action to determine the effects of this action on the physical and optical properties of the device. 4 Apparatus 4.1 General The test apparatus shall be capable of apply
30、ing simultaneously both tension and a torsional load or twisting action to the cable-to-device interface. Figures 1 and 2 show the basic parts of a test apparatus for component and closure test set-ups, respectively. BS EN 61300-2-5:2011 6 61300-2-5 IEC:2009(E) 4.2 Mounting fixture Use a fixture to
31、rigidly mount the device under test and hold it in proper alignment throughout the test. The fixture shall allow the device under test to be connected to an optical source and detector for monitoring attenuation. 4.3 Cable clamp The cable clamp is the point at which the torsional load is applied. Th
32、e cable clamp shall be capable of grasping and securing the cable so that it does not turn or slip in the holder when loads are applied. The clamp shall not crush the optical fibres or cause a change in the attenuation. The cable clamp may consist of a mandrel around which several turns of cable are
33、 wrapped and secured. 4.4 Weights Weights or another mechanism for applying a tensile load to the cable clamp are required. Values of recommended loads are given in Table 1. 400 mm-1 000 mm(See 5.3) To optical source Mounting fixture (secure to prevent movement) Weights, if specified Cable clamp (sh
34、ould facilitate addition of weights if specified) To optical detector Device under test Twist in both directions IEC 2300/08 Figure 1 Component or device test set-up Closure 1 3Sample fixation Clamping distance4 Cable seal Cable2 IEC 2301/08 Figure 2 Closure test set-up BS EN 61300-2-5:201161300-2-5
35、 IEC:2009(E) 7 4.5 Optical source and detector The optical source and detector used to measure changes in attenuation shall comply with that specified in IEC 61300-3-4. 5 Procedure 5.1 Preparation of specimens Prepare the specimens according to the manufacturers instructions or as specified in the r
36、elevant specification. The device under test shall be terminated onto a sufficient length of fibre cable to facilitate interfacing with the optical source and detector. 5.2 Pre-conditioning Pre-condition the device under test for 2 h at the standard test conditions specified in IEC 61300-1, unless o
37、therwise specified in the relevant specification. Measure and record the attenuation of the device under test. 5.3 Mount the device under test The body of the specimen shall be rigidly mounted to a holding plate which is secured in a fixed position (see Figure 1). The clamp to which the load can be
38、applied shall be fastened to the cable in such a manner that the optical fibre or cable is not crushed. The top of the cable clamp shall be 400 mm from the end of the strain relief, if used (see Figure 1). For cable diameters larger than 25 mm, the top of the cable clamp shall be 1 000 mm from the e
39、nd of the strain relief. If there is no strain relief, the end of the specimen nearest the cable clamp shall be the reference. 5.4 Measure the attenuation Re-measure the attenuation to ensure that the fixturing and cable clamping have not affected the cables attenuation. 5.5 Apply cable load Gradual
40、ly apply the tensile load, as recommended in Table 1 or as specified in the relevant specification, to the cable clamping fixture, being careful to avoid any sudden jerking or straining of the cable. 5.6 Measure the attenuation After the load is applied, re-measure the attenuation of the specimen. T
41、his value shall be recorded and used as a reference to determine the effects of the twisting motion. 5.7 Twist the cable Apply a twisting motion to the cable-clamping device, being careful to control the vertical and horizontal motion of the load. One twist cycle shall consist of a twist angle (as i
42、ndicated in Table 1 or in the relevant specification) in one direction, a return to the original position, a twist angle (as indicatead in Table 1 or in the relevant specification) in the opposite direction and a final return to the original position. Repeat the twist cycle as many times as specifie
43、d in Table 1, or in the relevant specification. 5.8 Test pressure For Category S closures, use a test pressure: 40 kPa 2 kPa over-pressure at test temperature. For products used in pressurized networks, all testing should be carried out at 98,0 kPa 9,8 kPa over-pressure instead of 40 kPa over-pressu
44、re. BS EN 61300-2-5:2011 8 61300-2-5 IEC:2009(E) 5.9 Monitoring attenuation The attenuation of the specimen shall be monitored during the test, as described in IEC 61300-3-3, unless otherwise specified in the relevant specification. Any deviation in the device attenuation from that measured in IEC 6
45、1300-3-6 shall be considered attributable to the cable/device interface, fibre-to-fibre interfaces or fibre-to-source/detector interfaces in the device. NOTE If there are unacceptable changes in attenuation and it is questionable whether the cable itself may be at fault, a control test to determine
46、cable contribution shall be performed in the same manner using a piece of cable and two cable clamps. 5.10 Final measurements and examinations After completion of the cable twist cycling, remove all fixtures and make a final attenuation measurement to ensure that there is no permanent damage to the
47、device under test. The results of the final measurement shall be within the limit established in the relevant specification. Remove the device from the mounting fixture and, unless otherwise specified, visually examine the specimens in accordance with IEC 61300-3-1. Check for evidence of any degrada
48、tion in the specimen. This may include, for example: broken, loose or damaged parts or accessories; breaking or damage to the cable jacket, seals, strain relief, or fibres; displaced, bent, broken or chipped parts; scratching of any interface areas. 6 Severity The severity of the test is dependent u
49、pon the tensile load applied, the number of twists per cycle (twist angle) and the number of twist cycles. The severity shall be specified in the relevant specification. Recommended values of the test parameters are given in Table 1. Table 1 Severity levels Component Recommended load N Twist angle (1 cycle - ) Number of cycles CAT U and CAT E connectors with coated fibre 2,0 180 25 CAT U and CAT E connectors with reinforced cable 15,0 1
