1、 IEC 61300-2-47 Edition 4.0 2016-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-47: Tests Thermal shocks Dispositifs dinterconnexion et composants passifs fibroniques Procdures fondamentales dessa
2、is et de mesures Partie 2-47: Essais Chocs thermiques IEC 61300-2-47:2016-05(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 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,
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20、ponents Basic test and measurement procedures Part 2-47: Tests Thermal shocks Dispositifs dinterconnexion et composants passifs fibroniques Procdures fondamentales dessais et de mesures Partie 2-47: Essais Chocs thermiques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNA
21、TIONALE ICS 33.180.20 ISBN 978-2-8322-3418-1 Registered trademark of the 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
22、vous avez obtenu cette publication via un distributeur agr. 2 IEC 61300-2-47:2016 IEC 2016 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references. 5 3 General description . 5 4 Apparatus 5 4.1 Testing chambers 5 4.2 Support for mounting the DUT . 6 5 Procedure . 6 5.1 General . 6 5.2 Preconditioning
23、 . 6 5.3 Initial examination and measurement . 6 5.4 Testing . 6 5.5 Recovery 7 5.6 Final examination and measurement 7 6 Severity . 7 7 Details to be specified . 8 Annex A (informative) Minimum temperature value in Finland . 9 Bibliography . 10 Figure 1 Temperature change cycle 7 IEC 61300-2-47:201
24、6 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-47: Tests Thermal shocks FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization co
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34、 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 patent rights. IEC shall not be held
35、responsible for identifying any or all such patent rights. International Standard IEC 61300-2-47 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. This fourth edition cancels and replaces the third edition
36、published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: review of temperature limit in the test severity. 4 IEC 61300-2-47:2016 IEC 2016 The text of this standard is based on the followin
37、g documents: CDV Report on voting 86B/3879/CDV 86B/3937A/RVC 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. The readers attention
38、is drawn to the fact that Annex A lists an “in some-country” clause on differing practices of a less permanent nature relating to the subject of this standard. A list of all parts in the IEC 61300 series, published under the general title Fibre optic interconnecting devices and passive components Ba
39、sic 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 da
40、te, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 61300-2-47:2016 IEC 2016 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-47: Tests Thermal shocks 1 Scope This part of IEC 61300 details a proc
41、edure for determining the suitability of a fibre optic device to withstand the effects of thermal shock. In practice, this means a very short change over time between extreme temperatures. 2 Normative references The following documents, in whole or in part, are normatively referenced in this documen
42、t and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-14, Environmental testing Part 2-14: Tests Test N: Change of temperature IEC 61300-
43、3-1, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-1: Examinations and measurements Visual examination 3 General description The procedure described in this standard is conducted in accordance with IEC 60068-2-14, test Na. The device under te
44、st (DUT) is first subjected to one extreme of temperature for a given period of time. It is then subjected to the other extreme of temperature for an equal period of time. Two test methods are considered: manual or automatic. Both methods are considered as equivalent. The reference method is the aut
45、omatic one. 4 Apparatus 4.1 Testing chambers a) Two separate chambers or one rapid temperature change rate may be used. If two chambers are used, one for the low temperature and one for the high temperature, they are located such as to allow transfer of the DUT from one chamber to the other within t
46、he prescribed time. Either manual or automatic transfer methods may be used. b) The chambers shall be capable of maintaining the atmosphere at the appropriate temperature for the test in any region where the DUT is placed. c) The absolute humidity of the atmosphere inside the chambers should not exc
47、eed 20 g/m 3 . At the temperature of 60 C and standard air pressure, the relative humidity should be less than 16 %. d) The temperature of the walls of the hot and cold chambers shall not differ by more than 3 % and 8 % respectively from the specified ambient temperature of the test, expressed in Ke
48、lvin (tolerance of 3 % for high temperature, and 8 % for low temperature). 6 IEC 61300-2-47:2016 IEC 2016 e) The volume of the chambers and the air velocity shall be such that after insertion of the DUT, the temperature of the atmosphere shall be within the specified tolerance after a time of not mo
49、re than 10 % of the exposure time. f) The air of the chamber shall be circulated so that the air velocity, measured close to the DUT, shall be not less than 2 m/s. 4.2 Support for mounting the DUT Unless otherwise specified in the relevant specification, the thermal conductivity of the supports for mounting the DUT shall be low, such that for practical purposes the DUT is thermally isolated. When tes
