1、 IEC 61300-2-9 Edition 3.0 2017-01 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-9: Tests Shock IEC 61300-2-9:2017-01(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All
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11、 and measurement procedures Part 2-9: Tests Shock INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.180.20 ISBN 978-2-8322-3770-0 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2
12、 IEC 61300-2-9:2017 IEC 2017 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references 5 3 Terms and definitions 5 4 General description . 7 5 Apparatus 7 5.1 Shock machine . 7 5.1.1 General . 7 5.1.2 Repetition rate . 8 5.1.3 Velocity change tolerances 8 5.1.4 Cross axis motion 8 5.1.5 Acceleration me
13、asuring system . 8 5.2 Mounting fixture 9 5.3 Optical power measuring equipment . 9 6 Procedure 9 6.1 Preparation of DUT . 9 6.2 Pre-conditioning 10 6.3 Initial examinations and measurements . 10 6.4 Testing . 10 6.5 Recovery 10 6.6 Final examination and measurements . 10 7 Shock severity . 11 8 Det
14、ails to be specified . 11 Bibliography 12 Figure 1 Fixing points 6 Figure 2 Pulse shape and limits of tolerance for half-sine pulse . 7 Figure 3 Frequency characteristics of the overall measuring system without low-pass filter 9 Table 1 Required frequency characteristic values for the overall measur
15、ing system 9 Table 2 Severity for passive components and modules 11 Table 3 Severity for fibre management systems and closures 11 IEC 61300-2-9:2017 IEC 2017 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES
16、 Part 2-9: Tests Shock 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 concerning
17、 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)“). Their pre
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24、 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 legal fees) and expenses a
25、rising 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 publication. 9) Attention
26、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 61300-2-9 has been prepared by subcommittee 86B: Fibre optic interconnecting
27、devices and passive components, of IEC technical committee 86: Fibre optics. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edi
28、tion: a) inserted clause “Terms and definitions“; b) added precise descriptions to clause “Apparatus“; c) added sub clause “Testing“ into clause “Procedure“; d) added “Bibliography“. 4 IEC 61300-2-9:2017 IEC 2017 The text of this International Standard is based on the following documents: CDV Report
29、 on voting 86B/3979/CDV 86B/4017/RVC Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 6130
30、0 series, published under the general title Fibre optic interconnecting devices and passive components, can be found on the IEC website. The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.
31、ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indica
32、tes that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. IEC 61300-2-9:2017 IEC 2017 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDU
33、RES Part 2-9: Tests Shock 1 Scope This part of IEC 61300 defines a test method to reveal mechanical weakness and/or degradation of fibre optic devices when subjected to repetitive or non-repetitive mechanical shocks. It simulates infrequent repetitive or non-repetitive shocks likely to be encountere
34、d in normal service or during transportation. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest
35、 edition of the referenced document (including any amendments) applies. IEC 60068-1, Environmental testing Part 1: General and guidance 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 opti
36、c interconnecting devices and passive components Basic test and measurement procedures Part 3-1: Examinations and measurements Visual examination IEC 61300-3-28, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-28: Examinations and measurements
37、Transient loss ISO 2041, Mechanical vibration, shock and condition monitoring Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 2041 and IEC 60068-1 apply. ISO and IEC maintain terminological databases for use in standardization at the follo
38、wing addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 check point point located on the fixture, on the table surface of the shock machine, or on the DUT as close as possible to the fixing point and rigidly conn
39、ected to it Note 1 to entry A number of check points may be used to ensure the test requirements are satisfied. Note 2 to entry If the DUT is attached by more than four fixing points, the relevant specification should state the number of fixing points that are to be used as check points. 6 IEC 61300
40、2-9:2017 IEC 2017 Note 3 to entry In special cases, for example, for large or complex DUTs, the check points will be prescribed by the relevant specification. Note 4 to entry If a small DUT is mounted on one fixture or a large number of small DUTs are mounted on one fixture, or where there are a nu
41、mber of fixing points, a single check point (that is the reference point) may be selected for the derivation of the control signal. This signal is then related to the fixture rather than to the fixing points of the DUT(s). This procedure is only valid when the lowest resonance frequency of the loade
42、d fixture is well above the upper frequency of the test. 3.2 fixing point point on the DUT in contact with the fixture (Figure 1a) or the table of the shock machine at a location where the DUT is normally fastened in service Note 1 to entry If a part of the real mounting structure is used as the fix
43、ture, the fixing points are taken as those where the real mounting structure contacts the table (Figure 1b) and not where the product contacts the real mounting structure. a) Fixing points using a fixture b) Fixing points using a real mounting structure as a fixture Figure 1 Fixing points 3.3 repeti
44、tion rate number of shocks per second 3.4 shock severity combination of the peak acceleration, the duration of the nominal pulse and the number of shocks IEC DUT Fixture Fixing points Table of shock-testing machine IEC DUT Real mounting structure Fixing points Table of shock-testing machine IEC 6130
45、0-2-9:2017 IEC 2017 7 3.5 velocity change absolute value of the sudden change of velocity resulting from the application of the specified acceleration 4 General description A device under test (DUT) is mounted on the table of the shock machine and is subjected to half-sinusoidal shock pulses. The DU
46、T is exposed to two or three shock pulses applied in each direction of three mutually perpendicular axes in accordance with severities (see Clause 7). Wherever possible, the severity of the pulse applied to the DUT should be such as to reproduce the effects of the actual transport or operational env
47、ironment to which the DUT will be subjected, or to satisfy the design requirements. The DUT is always mounted to the fixture or the table of the shock machine during testing. 5 Apparatus 5.1 Shock machine 5.1.1 General The shock machine may be of the free fall, resilient rebound, nonresilient, hydra
48、ulic, compressed gas or other activating type. The shock machine shall be capable of generating a calibrated acceleration when loaded with a DUT, with or without a fixture. The shock machine shall be capable of generating a half-sinusoidal excitation measured at the checkpoints, within the tolerance
49、 shown by the solid lines in Figure 2. Key nominal pulse A = peak acceleration of nominal pulse tolerence T 1 = minimum time during which the pulse shall be monitored for shocks produced using a conventional shock machine D = duration of nominal pulse T 2 = minimum time during which the pulse shall be monitored for shocks produced using a vibration generator Figure 2 Pulse shape and limits of tolerance for half-sine pulse 2,5 D Integration time 1,5 D
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