1、 IEC 61300-2-52 Edition 1.0 2013-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-52: Tests Bending test for cords Dispositifs dinterconnexion et composants passifs fibres optiques Procdures fondame
2、ntales dessais et de mesures Partie 2-52: Essais Essai de courbure pour les cordons IEC61300-2-52:2013 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any for
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16、 avez des questions contactez-nous: csciec.ch. IEC 61300-2-52 Edition 1.0 2013-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-52: Tests Bending test for cords Dispositifs dinterconnexion et compos
17、ants passifs fibres optiques Procdures fondamentales dessais et de mesures Partie 2-52: Essais Essai de courbure pour les cordons INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE J ICS 33.180.20 PRICE CODE CODE PRIX ISBN 978-2-83220-652-2 Registered trademark of t
18、he International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 61300-2-
19、52 IEC:2013 CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative references 5 3 General description . 5 4 Apparatus . 5 4.1 General . 5 4.2 Cord 5 4.3 Specimen 6 4.4 Optical measurements . 6 5 Procedure . 6 5.1 General . 6 5.2 Preconditioning 6 5.3 Initial examinations and measurements 6 5.4 Procedure 6 5.
20、5 Final examinations and measurements 7 6 Severity 7 7 Details to be specified . 8 Bibliography 9 Figure 1 Specimen fixed onto mandrel 7 Figure 2 Cable wrapped around mandrel 7 Figure 3 Required number of mandrel rotations applied 7 Table 1 Severity . 8 61300-2-52 IEC:2013 3 INTERNATIONAL ELECTROTEC
21、HNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-52: Tests Bending test for cords FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electro
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31、 this publication. Use of the referenced publications is indispensable for the correct 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 an
32、y or all such patent rights. International Standard IEC 61300-2-52 has been prepared by sub-committee 86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. The text of this standard is based on the following documents: FDIS Report on voting 86B
33、/3547/FDIS 86B/3590/RVD 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. 4 61300-2-52 IEC:2013 A list of all the parts in the IEC 61
34、300 series, published under the general title, Fibre optic interconnecting devices and passive components Basic test and measurement procedures 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
35、 the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 61300-2-52 IEC:2013 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND ME
36、ASUREMENT PROCEDURES Part 2-52: Tests Bending test for cords 1 Scope This part of the IEC 61300 series describes a procedure to determine the suitability of a cord to withstand bending around a mandrel of the sort to be applied during normal use. This test is only applied to single fibre cables and
37、multiple fibre circular cables. It is not applicable to ribbon cables. 2 Normative references 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 referen
38、ces, 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 interconnecting devices and passive components
39、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 monitoring of changes in attenuation and ret
40、urn 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 purpose of this test is to determine the capability of the cord when repeatedly bent. Optical measure
41、ments are made before and after the test to screen for evidence of damage to the fibre/cable. 4 Apparatus 4.1 General A single mandrel apparatus shall enable the sample to be wrapped tangentially in a close helix around a single test mandrel. 4.2 Cord A cord is a fibre optic cable terminated with an
42、y passive fibre optic connector on both ends, regardless of its expected use. Examples include equipment cords, work area cords or patchcords. 6 61300-2-52 IEC:2013 4.3 Specimen The specimen shall be a cord. The connectors shall be terminated according to the manufacturers instructions so that the f
43、ibre, cable and resilient members are fixed together. 4.4 Optical measurements Unless otherwise specified, measuring equipment specified in IEC 61300-3-4 shall be connected to the specimen for monitoring optical performance during the test. 5 Procedure 5.1 General Sufficient tension shall be applied
44、 to ensure that the sample contours the mandrel. The sample shall then be unwrapped. A cycle consists of one wrapping and one unwrapping. The diameter of the test mandrel, the number of turns of the mandrel and the number of cycles shall be shown in the relevant specification. 5.2 Preconditioning Pr
45、econdition the specimen and all equipment for 2 h under standard test conditions as defined in IEC 61300-1, unless otherwise specified in the relevant specification. 5.3 Initial examinations and measurements Complete the initial examinations and measurements. 5.4 Procedure a) Connect the specimen to
46、 the optical measurement equipment according to IEC 61300-3-3. b) The specimen shall be initially positioned as shown in Figure 1. The two straight sections shall be perpendicular to the mandrel and spacing between the two straight sections shall be such that the diameter of the loop is greater than
47、 the cables minimum bend diameter. c) Start the optical power measurements. d) The specimen shall be wrapped around the mandrel at a uniform tension such that there are no gaps between the cable and the mandrel during the bending cycles (see Figure 2). The required number of turns around the mandrel
48、 shall be applied. Each revolution of cable on the mandrel shall be close to the adjacent revolutions or cable wraps (see Figure 3). e) The specimen shall be kept in this position for at least 1 min. f) The specimen shall be unwrapped and kept in this position for at least 1 min. g) The required num
49、ber of cycles shall be applied by repeating steps d) to f) in a timely manner at a rate no greater than 1 wrap per minute. h) Stop optical power measurements. 61300-2-52 IEC:2013 7 Specimen Mandrel IEC 482/13 Figure 1 Specimen fixed onto mandrel IEC 483/13 Figure 2 Cable wrapped around mandrel IEC 484/13 Figure 3 Required number of mandrel rotations applied 5.5 Final examinat
