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    IEC 61300-2-44-2013 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-44 Tests - Flexing of the strain.pdf

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    IEC 61300-2-44-2013 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-44 Tests - Flexing of the strain.pdf

    1、 IEC 61300-2-44 Edition 3.0 2013-07 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-44: Tests Flexing of the strain relief of fibre optic devices IEC 61300-2-44:2013(E) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 20

    2、13 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Co

    3、mmittee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Central Office Tel.: +41 22 919 0

    4、2 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technolo

    5、gies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Useful links: IEC publications search - www.iec.ch/searchpub The advanced search

    6、 enables you to find IEC publications by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published de

    7、tails all new publications released. Available on-line and also once a month by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in additio

    8、nal languages. Also known as the International Electrotechnical Vocabulary (IEV) on-line. Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 61300-2-44 Edition 3

    9、.0 2013-07 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-44: Tests Flexing of the strain relief of fibre optic devices INTERNATIONAL ELECTROTECHNICAL COMMISSION J ICS 33.180.20 PRICE CODE ISBN 978-2-8322-0906-6 Register

    10、ed trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. 2 61300-2-44 IEC:2013(E) CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative references 5 3 General description . 5 4 Apparatus . 5 4.1 General . 5 4.2 Optica

    11、l source (S) 6 4.3 Detector (D) . 7 4.4 Mounting fixture . 7 4.5 Flex test machine or jig 7 5 Procedure . 7 5.1 Preparation of specimens 7 5.2 Preconditioning 7 5.3 Initial measurements 7 5.4 Conditioning 7 5.5 Recovery . 8 5.6 Final measurements 8 6 Severity 8 7 Details to be specified . 9 Figure 1

    12、 Apparatus for testing 6 Figure 2 Application of the load in the case of duplex cordage 6 Table 1 Severities 8 61300-2-44 IEC:2013(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-44: Tests Flexin

    13、g of the strain relief of fibre optic devices FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on a

    14、ll questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publ

    15、ication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation.

    16、IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of

    17、opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made

    18、to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transpare

    19、ntly to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certi

    20、fication bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability sha

    21、ll attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including leg

    22、al fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this pub

    23、lication. 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 any or all such patent rights. International Standard IEC 61300-2-44 has been prepared by subcommittee SC86B: Fi

    24、bre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. This third edition cancels and replaces the second edition published in 2008 and constitutes a technical revision. This edition includes the following significant technical changes with respect to

    25、the previous edition: a) revision of Figure 1; b) change of fibre length from the flex point to the weight. 4 61300-2-44 IEC:2013(E) The text of this standard is based on the following documents: CDV Report on voting 86B/3499/CDV 86B/3600/RVC Full information on the voting for the approval of this s

    26、tandard 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. A list of all parts of IEC 61300 series, published under the general title Fibre optic interconnecting devices and passive components Basic

    27、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 the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date,

    28、the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. 61300-2-44 IEC:2013(E) 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-44: Tests

    29、 Flexing of the strain relief of fibre optic devices 1 Scope This part of IEC 61300 specifies a test to determine the influence of flexing under tensile load of the strain relief of fibre optic devices. The intention is to simulate the number of flexing cycles which would typically be experienced du

    30、ring service life. This test is applied to both single fibre cable and multiple fibre cable. 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 applie

    31、s. 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 interconnecting devices a

    32、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 test and measurement procedures Part 3-3: Examinations and measurements Active monitoring of changes

    33、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 IEC 61753-1, Fibre optic interconnecting devices and passive components performance standard Part 1: Gene

    34、ral and guidance for performance standards 3 General description The device under test (DUT) is rotated 90 in the plane of the cable about an axis perpendicular to the axis of the attached cable and in the case of ribbon cable, parallel to the width of the ribbon. This causes flexing of the strain r

    35、elief and cable close to the DUT. During the flexing, a tensile force, but no torque, is applied. 4 Apparatus 4.1 General The apparatus for testing and the flexing patterns involved are presented in Figure 1. 6 61300-2-44 IEC:2013(E) 0 90 +90 25 cm 5 cm DUT Weight Tensile Detector Mounting plate Sou

    36、rce IEC 1603/13 Figure 1 Apparatus for testing 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 The equipment used is that indicated in

    37、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. Duplex cordage Load IEC 1276/04 61300-2-44 IEC:2013(E) 7 4.3 Detector (D) The recommended detector shall be in accordance with IEC 61300-3-3 and IEC 61300-3-4 as appr

    38、opriate. 4.4 Mounting fixture The mounting fixture rigidly holds the fibre optic DUT 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 DUT. The fixture shall allow the DUT to

    39、 be connected to monitoring equipment. 4.5 Flex test machine or jig A machine or jig that can rotate the DUT 90 ofrom 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 manufacturers instruct

    40、ions. Visually check that the attachment of the cable to the fibre optic device is not damaged in accordance with IEC 61300-3-1. Fibre length from the flex point to the weight: 25 cm 5 cm. Fibre length is measured from the point of flexing to the point of application of the load. 5.2 Preconditioning

    41、 Pre-condition the specimen and all equipment for 2 h at the standard test conditions as defined 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

    42、. 5.4 Conditioning Install the DUT on the apparatus. Measure the attenuation of the DUT with the flexing arm in a vertical position in accordance with IEC 61300-3-4. Apply the specified tensile load and apply the specified number of flexes. Use gentle rotational movements, not exceeding 20 cycles/mi

    43、n. The dwell at each extreme shall be not greater than 5 s. Measure the change in attenuation during test in accordance with IEC 61300-3-3. Stop the flexing with the flexing arm in vertical position. Remove the tensile force. 8 61300-2-44 IEC:2013(E) 5.5 Recovery Allow the DUT to remain under standa

    44、rd test conditions for 2 h, as defined in IEC 61300-1, unless otherwise specified in the relevant specification. Clean the DUT in accordance with the manufacturers instructions. 5.6 Final measurements Remove the DUT from the apparatus and make final measurements, as defined by the relevant specifica

    45、tion, to ensure that there is no permanent damage to the DUT. The results of the final measurement shall be within the limit established in the relevant specification. Visually check that the attachment of the cable to the fibre optic DUT is not damaged in accordance with IEC 61300-3-1. 6 Severity S

    46、everity is specified by the magnitude of tensile force and the number of cycles +90 to 90. Recommended values of the test parameters are given in Table 1. Table 1 Severities Category aComponent type Tensile force N Number of cycles C Connectors Reinforced cable 2 100 C Passive components Reinforced

    47、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 5 30 Primary and secondary coated fibre 2 30 O Connectors Reinforced jacketed cables 8,9 100 bSFF connectors 5,9 100 baCategory can be found in IEC 61

    48、753-1. bApplied at 25 cm 5 cm from cable entrance to plug. 61300-2-44 IEC:2013(E) 9 7 Details to be specified The relevant specification shall specify the following details: magnitude of tensile force; number of flexes; applicable optical fibre cable (type, length, etc.); initial examination and mea

    49、surements and performance requirements; permitted change of attenuation during test; final examination and measurements and performance requirements; pass/fail decision criterion; deviations from test procedure. _ INTERNATIONAL ELECTROTECHNICAL COMMISSION 3, rue de Varemb PO Box 131 CH-1211 Geneva 20 Switzerland Tel: + 41 22 919 02 11 Fax: + 41 22 919 03 00 infoiec.ch www.iec.ch


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