1、 IEC 61300-2-19 Edition 3.0 2012-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-19: Tests Damp heat (steady state) Dispositifs dinterconnexion et composants passifs fibres optiques Mthodes fondame
2、ntales dessais et de mesures Partie 2-19: Essais Chaleur humide (tat continu) IEC 61300-2-19:2012 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
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16、 des questions contactez-nous: csciec.ch. IEC 61300-2-19 Edition 3.0 2012-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-19: Tests Damp heat (steady state) Dispositifs dinterconnexion et composant
17、s passifs fibres optiques Mthodes fondamentales dessais et de mesures Partie 2-19: Essais Chaleur humide (tat continu) INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE J ICS 33.180.20 PRICE CODE CODE PRIX ISBN 978-2-83220-469-6 Registered trademark of the Internat
18、ional 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 IEC:2012
19、 CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative references . 5 3 General description 5 4 Apparatus . 5 4.1 Chamber . 5 4.2 Steam . 6 4.3 Optical measurements . 6 4.4 Positioning and mounting of the specimen . 6 5 Procedure. 7 5.1 General . 7 5.2 Preconditioning . 7 5.3 Initial examinations and measur
20、ements . 7 5.4 Conditioning 7 5.5 Recovery . 8 5.6 Final examinations and measurements 8 6 Severity 8 7 Details to be specified 8 Table 1 Severities 8 61300-2-19 IEC:2012 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREME
21、NT PROCEDURES Part 2-19: Tests Damp heat (steady state) 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-oper
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29、bility shall 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 (inc
30、luding legal 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 o
31、f 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 any or all such patent rights. International Standard IEC 61300-2-19 has been prepared by subcommittee
32、 SC86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. This third edition cancels and replaces the second edition published in 2005. It constitutes a technical revision. The changes with respect to the previous edition are to reconsider the s
33、everities and details to be specified. 4 61300-2-19 IEC:2012 The text of this standard is based on the following documents: FDIS Report on voting 86B/3492/FDIS 86B/3536/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above ta
34、ble. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The list of all parts of IEC 61300 series, published under the general title, Fibre optic interconnecting and passive components Basic test and measurement procedures, can be found on the IEC website. The commi
35、ttee 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, the publication will be reconfirmed, withdrawn, replaced by a revised editi
36、on, or amended. 61300-2-19 IEC:2012 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-19: Tests Damp heat (steady state) 1 Scope This part of IEC 61300 details a procedure for determining the suitability of a fibre optic device to withstand the
37、 environmental condition of high humidity and high temperature which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of high humidity at constant temperature over a given period. Absorption of moisture may result in swelling that
38、 would destroy functional utility, cause loss of physical strength, and cause changes in other important mechanical properties. Degradation of optical properties may also occur. Although not necessarily intended as a simulated tropical test, this test can, nevertheless, be useful in determining mois
39、ture absorption of insulating or covering materials. 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 references, the latest ed
40、ition of the referenced document (including any amendments) applies. IEC 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC 61300-3-1, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-1: Examinations and mea
41、surements 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 return loss IEC 61300-3-4, Fibre optic interconnecting devices and pass
42、ive components Basic test and measurement procedures Part 3-4: Examinations and measurements Attenuation 3 General description This procedure is conducted in accordance with IEC 60068-2-78, Test Cab. The specimen is placed in a chamber and subjected to a damp-heat environment which is maintained at
43、a given temperature and relative humidity for a specified duration, as specified in the relevant specification. 4 Apparatus 4.1 Chamber The apparatus consists of an environmental chamber in accordance with IEC 60068-2-78, test Cab. The chamber shall be capable of housing the specimen and shall be so
44、 constructed that: 6 61300-2-19 IEC:2012 a) it can produce the temperature and relative humidity given in Table 1; b) it is capable of providing controlled conditions of temperature, relative humidity during testing, and the ramp-up to, and ramp-down from, specified test conditions; c) the temperatu
45、re and humidity of the chamber can be monitored by means of sensing devices located in the working space, and/or other areas giving the same results (e.g. a steam generator); d) the enclosed atmosphere can be expelled from the chamber by the water-vapour prior to the commencement of testing; e) cond
46、ensed water is not allowed to fall on the specimen; f) the materials used in the construction shall not cause any corrosion of the specimen, or degradation of the quality of the humidifying water. The temperature tolerance of 2 C is intended to take account of absolute errors in the measurement, flu
47、ctuations of the chamber temperature at any point, and variations between all points within the working space. However, in order to maintain the relative humidity within the specified tolerance of 5 %, it is necessary to keep the difference between any two points in the working space (at any instant
48、) within narrower limits. The specified humidity tolerance will be exceeded if such temperature differences exceed 1,5 C. It is also necessary to restrict the short-term temperature fluctuations due to cycling of the chamber heater to a similar value. The specimen should not significantly impede the
49、 vapour flow. Condensation shall not be allowed to form on the specimen at any time during the test. 4.2 Steam Use steam or distilled, demineralized or deionized water to obtain the specified humidity. No rust or corrosion contaminants shall be imposed on the specimen by the test facility. Before the water is placed in the humidifier, all internal parts of the chamber shall be cleaned. The w
