BS EN 61300-2-19-2013 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Tests Damp heat (steady state)《纤维光学互连设备和无源元件 基本试验和测量规程 试验 湿热(.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationFibre optic interconnectingdevices and passive components Basic test and measurement proceduresPart 2-19: Tests Damp heat (steady state)BS EN 61300-2-19:2013National forewordThis

2、 British Standard is the UK implementation of EN 61300-2-19:2013. It isidentical to IEC 61300-2-19:2012. It supersedes BS EN 61300-2-19:2005which is withdrawn.The UK participation in its preparation was entrusted by Technical CommitteeGEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic inter

3、connectingdevices and passive components.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. The British Standards I

4、nstitution 2013Published by BSI Standards Limited 2013ISBN 978 0 580 75319 0ICS 33.180.20 Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 30 April 2013.Amendments

5、issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61300-2-19:2013EUROPEAN STANDARD EN 61300-2-19 NORME EUROPENNE EUROPISCHE NORM February 2013CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr

6、Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-2-19:2013 E ICS 33.180.20 Supersedes EN 61300-2-19:2005 English version Fibre optic interc

7、onnecting devices and passive components - Basic test and measurement procedures - Part 2-19: Tests - Damp heat (steady state) (IEC 61300-2-19:2012) Dispositifs dinterconnexion et composants passifs fibres optiques - Mthodes fondamentales dessais et de mesures - Partie 2-19: Essais - Chaleur humide

8、(essai continu)(CEI 61300-2-19:2012) Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prf- und Messverfahren - Teil 2-19: Prfungen - Feuchte Wrme (konstant)(IEC 61300-2-19:2012) This European Standard was approved by CENELEC on 2012-12-12. CENELEC members are bound to comp

9、ly with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

10、 Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre ha

11、s the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, La

12、tvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 61300-2-19:2013EN 61300-2-19:2013 - 2 - Foreword The text of document 86B/3491/FDIS, future edition 3 of IEC 61300-2-19, prepar

13、ed by SC 86B, “Fibre optic interconnecting devices and passive components“, of IEC TC 86, “Fibre optics“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61300-2-19:2013. The following dates are fixed: latest date by which the document has to be implemented at national le

14、vel by publication of an identical national standard or by endorsement (dop) 2013-09-12 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2013-12-12 This document supersedes EN 61300-2-19:2005. The changes with respect to EN 61300-2-19:2005 are to r

15、econsider the severities and details to be specified. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of t

16、he International Standard IEC 61300-2-19:2012 was approved by CENELEC as a European Standard without any modification. BS EN 61300-2-19:2013- 3 - EN 61300-2-19:2013 Annex ZA (normative) Normative references to international publications with their corresponding European publicationsThe following doc

17、uments, 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 edition of the referenced document (including any amendments) applies. NOTE When an internation

18、al publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-2-78 - Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state EN 60068-2-78 - IEC 61300-3-1 - Fibre optic interconnecting device

19、s and passive components - Basic test and measurement procedures - Part 3-1: Examinations and measurements - Visual examination EN 61300-3-1 - IEC 61300-3-3 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-3: Examinations and measurements

20、- Active monitoring of changes in attenuation and return loss EN 61300-3-3 - IEC 61300-3-4 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-4: Examinations and measurements - Attenuation EN 61300-3-4 - BS EN 61300-2-19:2013 2 61300-2-19 IE

21、C:2012 CONTENTS 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 measurements

22、. 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 BS EN 61300-2-19:201361300-2-19 IEC:2012 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-19: Tests

23、 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 environmental condition of high humidity and high temperature which may occur in actual use, storage and/or transport. The test is primarily intended

24、to permit the observation of effects of high humidity at constant temperature over a given period. Absorption of moisture may result in swelling that would destroy functional utility, cause loss of physical strength, and cause changes in other important mechanical properties. Degradation of optical

25、properties may also occur. Although not necessarily intended as a simulated tropical test, this test can, nevertheless, be useful in determining moisture absorption of insulating or covering materials. 2 Normative references The following documents, in whole or in part, are normatively referenced in

26、 this document 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 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady

27、 state 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 61300-3-3, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-3:

28、Examinations and measurements Active monitoring of changes 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 3 General description This procedure is conduc

29、ted 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 a given temperature and relative humidity for a specified duration, as specified in the relevant specification. 4 Apparatus 4.1 Chamber The apparatus c

30、onsists 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 constructed that: BS EN 61300-2-19:2013 6 61300-2-19 IEC:2012 a) it can produce the temperature and relative humidity given in Table 1; b) it is capab

31、le of providing controlled conditions of temperature, relative humidity during testing, and the ramp-up to, and ramp-down from, specified test conditions; c) the temperature and humidity of the chamber can be monitored by means of sensing devices located in the working space, and/or other areas givi

32、ng 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) condensed water is not allowed to fall on the specimen; f) the materials used in the construction shall not cause any corrosion of th

33、e 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, fluctuations of the chamber temperature at any point, and variations between all points within the working space. However, in order

34、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) within narrower limits. The specified humidity tolerance will be exceeded if such temperature differences exceed 1,5 C. It is a

35、lso 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 vapour flow. Condensation shall not be allowed to form on the specimen at any time during the test. 4.2 Steam Use steam or disti

36、lled, 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 water shall have a resistivity of no

37、t less than 50 Mm at 23 C. 4.3 Optical measurements Unless otherwise specified, measuring equipment specified in IEC 61300-3-3 shall be connected to the specimen for monitoring optical performance during the test. Where active monitoring is specified, the optical source and detector used to measure

38、changes in attenuation shall comply with those specified in IEC 61300-3-4. 4.4 Positioning and mounting of the specimen The specimen shall not be subjected to radiant heat from the heaters or the chamber wall. A specific mounting structure for mounting the DUT shall be used. The heat conductivity an

39、d the thermal capacity of the mounting fixtures shall be low so that for all practical purposes the specimen is thermally isolated. Care shall be exercised in the choice of mounting structure and mounting fixture materials to minimize the effects of contamination and to minimize degradation due to c

40、orrosion and other mechanisms. BS EN 61300-2-19:201361300-2-19 IEC:2012 7 5 Procedure 5.1 General Unless otherwise specified in the relevant specification, the following applies: a) conduct the procedure in accordance with IEC 60068-2-78, test Cab; b) if the component construction includes optical l

41、eads, include 1,5 m of cable in the climatic chamber for each port monitored during the test; c) if optical measurements are requested during the test, these measurements shall be performed at a maximum interval of 1 h. 5.2 Preconditioning Maintain the specimen under standard atmospheric condition (

42、room temperature condition) for 2 h as the minimum. Clean the specimen according to the manufacturers instructions. 5.3 Initial examinations and measurements Complete initial examinations and measurements as required by the relevant specification. 5.4 Conditioning a) Stabilize the chamber and the sp

43、ecimen to standard atmospheric conditions. Place the specimen in the chamber in its normal operating position including hook-ups to peripheral equipment (when required). b) Adjust the chamber temperature and humidity to the specified severity. The rate of change of temperature shall not exceed 1K/mi

44、n, averaged over a maximum period of 5 min. During this period, the enclosed atmosphere is expelled from the chamber by the water vapour and the temperature and th relative humidity shall not exceed the specified range. Condensed water is not allowed on the specimen at any time during the test. Allo

45、w the specimen to reach temperature stability and maintain the temperature and humidity for the specified duration. Stabilization of temperature and humidity shall take place within 1,5 h. However, if stabilization takes longer than 1,5 h, the test requirements will be met if stabilization is achiev

46、ed in not more than 3 h and the specified test duration is greater than 48 h. c) The temperature and relative humidity shall be maintained within the prescribed limits for duration as specified in the relevant specification. The test duration shall commence as soon as the conditions have stabilized.

47、 d) At the completion of the test, allow the specimen to remain in the chamber while the temperature is gradually reduced to standard atmospheric conditions. Furthermore, the chamber pressure, temperature and relative humidity shall be restored to standard atmospheric conditions for measurement and

48、tests in not less than 1 h and not more than 4 h. During this period, the temperature and the relative humidity shall not exceed the specified value. The conditions may be achieved by means of natural cooling. If the pressure is reduced by release from the chamber, care shall be taken that the speci

49、men is not subject to rapid depressurization. The pressure inside the test chamber shall remain the same as the pressure in the laboratory. e) On completion of the cooling period, the specimen shall be subjected to the recovery procedure. f) Where optical measurements are required during the test, measurements shall be made at a maximum interval of 1 h. Measurements shall be made in accordance with IEC 61300-3-3. The relevant specification shall define the measurements and period(s) dur

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