1、 IEC 61300-2-12 Edition 3.0 2009-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-12: Tests Impact Dispositifs dinterconnexion et composants passifs fibres optiques Mthodes fondamentales dessais et
2、de mesures Partie 2-12: Essais Impact IEC 61300-2-12:2009 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 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,
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16、si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61300-2-12 Edition 3.0 2009-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components Basic test and measu
17、rement procedures Part 2-12: Tests Impact Dispositifs dinterconnexion et composants passifs fibres optiques Mthodes fondamentales dessais et de mesures Partie 2-12: Essais Impact INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE L ICS 33.180.20 PRICE CODE CODE PRIX
18、 ISBN 2-8318-1052-4 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61300-2-12 IEC:2009 CONTENTS FOREWORD.3 1 Scope.5 2 Normative references .5 3 General description 5 4 Apparatus.5 4.1 Method A Pendulum drop .5 4.
19、1.1 Attaching fixture 5 4.1.2 Surface plate.6 4.2 Method B Impact with steel ball 6 4.2.1 Impact tool 6 4.2.2 Surface6 4.2.3 Drop apparatus6 4.3 Method C Free drop of specimen7 4.3.1 Attaching fixture 7 4.3.2 Impact surface.7 5 Procedure 7 5.1 Preparation of specimen7 5.2 Preconditioning .7 5.3 Init
20、ial examinations and measurements .8 5.4 Test method 8 5.4.1 General .8 5.4.2 Method A.8 5.4.3 Method B.8 5.4.4 Method C.9 5.4.5 Severity.10 5.5 Recovery.10 5.6 Final examinations and measurements10 6 Details to be specified 10 6.1 Method A.10 6.2 Method B.10 6.3 Method C 11 Figure 1 Method A Appara
21、tus6 Figure 2 Method B Apparatus7 Figure 3 Orientations for edge and corner drops 9 Table 1 Drop height .8 Table 2 Drop height and specimen mass9 61300-2-12 IEC:2009 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PR
22、OCEDURES Part 2-12: Tests Impact 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 all questions
23、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 Publication(s)”).
24、 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. IEC collabora
25、tes 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 opinion on th
26、e 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 to ensure tha
27、t 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 transparently to the m
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29、ible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical
30、 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 legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publ
31、ications. 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 publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
32、 patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61300-2-12 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. This third edition of
33、 IEC 61300-2-12 cancels and replaces the second edition published in 2005. In this third edition, the impact test with a steel ball has been added. The text of this standard is based on the following documents: CDV Report on voting 86B/2784/CDV 86B/2848/RVC Full information on the voting for the app
34、roval of this standard can be found in the report on voting indicated in the above table. 4 61300-2-12 IEC:2009 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
35、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 maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data relate
36、d to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 61300-2-12 IEC:2009 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-12: Tests Impact 1 Scope This part of
37、IEC 61300 is to evaluate the ability of a passive fibre optic device or a closure to withstand impacts likely to be encountered during usage. The impact may be a localized impact, a series of impacts with hard objects, or an impact normally associated with dropping the device. 2 Normative references
38、 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. IEC 61300-1, Fibre optic interconnecting devices
39、 and passive components Basic test and measurement procedures Part 1: General and guidance IEC 61300-3-1, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-1: Examinations and measurements Visual examination IEC 61753-1, Fibre optic interconnecti
40、ng devices and passive components performance standard Part 1: General and guidance for performance standards 3 General description Three methods are described: Method A: a specimen with an attached length of cable is freely swung in a pendular motion and allowed to strike an impact surface. Method
41、B: a steel ball is dropped on the specimen which is placed on a smooth hard rigid surface of concrete or steel. Method C: the specimen is released such as to allow free fall drops from the position of suspension. Impairment of function to the extent that the device fails to meet the requirements of
42、the relevant specification constitutes failure. 4 Apparatus 4.1 Method A Pendulum drop 4.1.1 Attaching fixture The attaching fixture shall be capable of being mounted on any convenient, rigid, vertical structure. If the device has an attached cable, the cable shall be mounted to the fixture in such
43、a manner as to allow it to swing freely from a horizontal to a vertical position. An 6 61300-2-12 IEC:2009 example of a suitable set-up is shown in Figure 1. For devices which have no cable attached, one of two options shall be used: a) a connector assembly adaptor or other fixture of equivalent or
44、less weight shall be mounted such that a patchcord cable can be attached, or b) method C shall be used. h l Attaching fixture Impact surface Specimen IEC 1257/09 NOTE Values for the cable length l and the drop height h are given in 5.4.2. Figure 1 Method A Apparatus 4.1.2 Surface plate The impact su
45、rface shall be a steel plate with a minimum thickness of 12,5 mm. The surface area of the plate shall be commensurate with the specimen dimensions. 4.2 Method B Impact with steel ball 4.2.1 Impact tool A steel ball of 1 kg shall be dropped from a hand-held position, or by a release device. Where nec
46、essary, other masses and shapes of the impact tool may be defined in the relevant specification. 4.2.2 Surface Unless otherwise specified, all test specimens shall be positioned on a smooth hard rigid surface of concrete or steel. Where necessary, other surfaces may be defined in the relevant specif
47、ication. 4.2.3 Drop apparatus An example of an apparatus to drop the impact tool is given in Figure 2. It consists of a hollow tube (guide) with a release system. The inner diameter of the tube shall be wide and smooth enough to minimise interaction between the tube and impact tool during the free f
48、all. 61300-2-12 IEC:2009 7 Figure 2 Method B Apparatus 4.3 Method C Free drop of specimen 4.3.1 Attaching fixture Specimens may be dropped from a hand-held position if small enough, or by a lifting-release device. Where a liftingrelease device is used for the test, it shall not impart a rotational o
49、r sideways force to the specimen. 4.3.2 Impact surface Unless otherwise specified, all drops shall be on to a smooth hard rigid surface of concrete or steel. Where necessary, other surfaces may be defined in the relevant specification. 5 Procedure 5.1 Preparation of specimen Prepare and clean the specimen in accordance with the manufacturers
