1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationEnvironmental testingPart 2-53: Tests and guidance: Combined climatic (temperature/humidity) and dynamic (vibration/shock) testsBS EN 60068-2-53:2010National forewordThis British
2、 Standard is the UK implementation of EN 60068-2-53:2010. It isidentical to IEC 60068-2-53:2010. It supersedes BS 2011-2.2Z/AFC, Z/BFC:1986, BS EN 60068-2-50:2000 and BS EN 60068-2-51:2000 which arewithdrawn.The UK participation in its preparation was entrusted to Technical CommitteeGEL/104, Environ
3、mental conditions, classification and testing.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. BSI 2010ISBN 978 0
4、 580 56268 6ICS 19.040Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 July 2010.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS
5、 EN 60068-2-53:2010EUROPEAN STANDARD EN 60068-2-53 NORME EUROPENNE EUROPISCHE NORM May 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 B
6、russels 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60068-2-53:2010 E ICS 19.040 Supersedes EN 60068-2-50:1999, EN 60068-2-51:1999English version Environmental testing - Part 2-53: Tests and guidance: Combined climatic (t
7、emperature/humidity) and dynamic (vibration/shock) tests (IEC 60068-2-53:2010) Essais denvironnement - Partie 2-53: Essais et guide: Essais combins climatiques (temprature/humidit) et dynamiques (vibrations/chocs) (CEI 60068-2-53:2010) Umgebungseinflsse - Teil 2-53: Prfverfahren - Prfungen und Leitf
8、aden - Kombinierte klimatische (Temperatur/Feuchte) und dynamische (Schwingung/Schock) Prfungen (IEC 60068-2-53:2010) This European Standard was approved by CENELEC on 2010-05-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
9、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 Central Secretariat or to any CENELEC member. This European Standard exists in three official vers
10、ions (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 Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of
11、 Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the Uni
12、ted Kingdom. BS EN 60068-2-53:2010EN 60068-2-53:2010 - 2 - Foreword The text of document 104/499/FDIS, future edition 2 of IEC 60068-2-53, prepared by IEC TC 104, Environmental conditions, classification and methods of test, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC
13、as EN 60068-2-53 on 2010-05-01. This European Standard supersedes EN 60068-2-50:1999 and EN 60068-2-51:1999. The main changes with respect to 60068-2-50:1999 and EN 60068-2-51:1999 is to update and group tests. In this way it allows for the possibility to use different kinds of vibration excitation
14、sine, random or mixed mode or shocks, with different tests for climatic conditions cold, dry heat, change of temperature or constant and cyclic damp heat. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not b
15、e held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2011-02-01 latest date by which the national standards confli
16、cting with the EN have to be withdrawn (dow) 2013-05-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60068-2-53:2010 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the followin
17、g notes have to be added for the standards indicated: IEC 60068-2-33 NOTE Harmonized as EN 60068-2-33. IEC 60068-2-47 NOTE Harmonized as EN 60068-2-47. _ BS EN 60068-2-53:2010- 3 - EN 60068-2-53:2010 Annex ZA (normative) Normative references to international publications with their corresponding Eur
18、opean publications 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. NOTE When an international pub
19、lication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-1 - Environmental testing - Part 1: General and guidance EN 60068-1- IEC 60068-2-1 - Environmental testing - Part 2-1: Tests - Test A: Cold EN 60068-2-1 - I
20、EC 60068-2-2 - Environmental testing - Part 2-2: Tests - Test B: Dry heat EN 60068-2-2 - IEC 60068-2-6 - Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal) EN 60068-2-6 - IEC 60068-2-14 - Environmental testing - Part 2-14: Tests - Test N: Change of temperature EN 60068-2-14 -
21、IEC 60068-2-27 - Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock EN 60068-2-27 - IEC 60068-2-30 - Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle) EN 60068-2-30 - IEC 60068-2-64 - Environmental testing - Part 2-64: Tests - Test Fh: Vibr
22、ation, broadband random and guidance EN 60068-2-64 - IEC 60068-2-78 - Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state EN 60068-2-78 - IEC 60068-2-80 - Environmental testing - Part 2-80: Tests - Test Fi: Vibration - Mixed mode EN 60068-2-80 - BS EN 60068-2-53:2010 2 60068
23、-2-53 IEC:2010 CONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Testing .6 3.1 General .6 3.2 Temperature information .7 3.3 Dynamic test information .8 3.4 Initial measurement and functional performance test .8 3.5 Operating condition of specimen .8 3.6 Mechanical conditioning of speci
24、men 8 4 Final measurements .8 5 Information to be given in the relevant specification .8 6 Information to be given in the test report 9 Annex A (informative) Examples of test sequences.11 Annex B (informative) Guidance on combined climatic and dynamic testing .15 Bibliography17 Figure A.1 Example of
25、 test sequence with cold or dry heat testing .11 Figure A.2 Example of test sequence with slow temperature12 Figure A.3 Example of test sequence with damp heat, cyclic13 Figure A.4 Example of test sequence with damp heat, constant .14 Figure B.1 Example for a typically test set-up 16 Table 1 Allowab
26、le combinations of IEC standards 7 BS EN 60068-2-53:201060068-2-53 IEC:2010 5 INTRODUCTION Equipment and components are required to function without significant reduction in performance when subjected to different environmental parameters. The type and severity of the environmental parameters depend
27、 on the operational, transport and storage environments to which the equipment and components are subjected. The environmental effects on the performance of equipments in the tropics and subtropics are totally different from those in arctic regions. Individual parameters cause a variety of different
28、 and overlapping effects on the equipment and components. The manufacturer attempts to ensure, and the user expects, that equipment and components will survive the environments to which they will be subjected throughout their useful life. This expectation can be assessed by exposure of the specimen
29、to a range of simulated environmental parameters controlled in the laboratory. The severity of the environmental parameters is often increased to obtain meaningful results in a relatively short period of time. This allows assessment of the likely effects of applied environmental conditions. The comb
30、ination of temperature, humidity and vibration occurs especially in the domains of automotive, rail and aerospace environments. BS EN 60068-2-53:2010 6 60068-2-53 IEC:2010 ENVIRONMENTAL TESTING Part 2-53: Tests and guidance Combined climatic (temperature/humidity) and dynamic (vibration/shock) tests
31、 1 Scope This part of IEC 60068 provides a description of test methods and guidance for testing equipment or components under combined climatic and dynamic conditions. The purpose of combined testing is to investigate to what extent the equipment or components are affected by combined climatic and d
32、ynamic tests. The method of combined tests detects electrical, mechanical or other physical variations. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the
33、latest edition of the referenced document (including any amendments) applies. IEC 60068-1, Environmental testing Part 1: General and guidance IEC 60068-2-1, Environmental testing Part 2-1: Tests Test A: Cold IEC 60068-2-2, Environmental testing Part 2-2: Tests Test B: Dry heat IEC 60068-2-6, Environ
34、mental testing Part 2-6: Tests Test Fc: Vibration (sinusoidal) IEC 60068-2-14, Environmental testing Part 2-14: Test Test N: Change of temperature IEC 60068-2-27, Environmental testing Part 2-27: Tests Test Ea and guidance: Shock IEC 60068-2-30, Environmental testing Part 2-30: Tests Test Db: Damp h
35、eat, cyclic (12 h + 12 h cycle) IEC 60068-2-64, Environmental testing Part 2-64: Tests Test Fh: Vibration, broadband random (digital control) and guidance IEC 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC 60068-2-80, Environmental testing Part 2-80: Tests T
36、est Fi: Vibration Mixed mode 3 Testing 3.1 General All parameters such as temperatures, cold, dry heat, temperature change, type of vibration, exposure time to temperature, exposure time to vibration, number of shocks, repetition time of BS EN 60068-2-53:201060068-2-53 IEC:2010 7 shocks, axis of sho
37、ck or vibration, state of operation and so on, shall be selected from the relevant IEC 60068-2 standards or relevant specification. The combinations of environmental conditions should be selected to ensure that electrical and mechanical performances of the specimen are satisfactory under storage, tr
38、ansportation and operational conditions. Certain combinations of possible tests shown in Table 1 may not be practicable. Examples of these include the following: full sweep of sinusoidal vibration spectrum not completed during change of temperature or temperature cycling; temperature stabilization o
39、f dynamic non linear systems, e.g. anti vibration mounts during vibration with change of temperature or temperature cycling; full cycle of mixed mode vibration during change of temperature or temperature cycling. Table 1 Allowable combinations of IEC standards Dynamic tests Climatic tests Shock Vibr
40、ation (sinusoidal) Vibration (broad band random) Vibration (mixed mode) IEC 60068-2-27 IEC 60068-2-6 IEC 60068-2-64 IEC 60068-2-80 Cold IEC 60068-2-1 X X X X Dry heat IEC 60068-2-2 X X X X Change of temperature IEC 60068-2-14 X X X X Damp heat, cyclic IEC 60068-2-30 X X X X Damp heat, constant IEC 6
41、0068-2-78 X X X X Specimens may be repositioned for shock or vibration along another axis at standard climatic conditions according to IEC 60068-1, as required by the relevant specification. The dynamic test shall be continued when the required test temperature and humidity has been reached. 3.2 Tem
42、perature information If cold or dry heat testing is required, the exposure time shall not commence until all parts of the specimen have reached a temperature within at least 3 K of the working space temperature. For heat-dissipating specimens, the period of exposure shall not begin until the tempera
43、ture of the specimens changes not more than 1 K within 1 h at the stabilized working space temperature. The last hour of the temperature-soaking time shall be considered to be the first hour of the exposure period. If a damp heat constant testing is required, the exposure time shall not commence unt
44、il all parts of the specimen have reached a temperature within at least 3 K of the temperature, and a relative humidity within 3 % of the humidity, within the working space of the test chamber. For heat-dissipating specimens, the period of exposure shall not begin until the temperature of the specim
45、ens changes not more than 1 K within 1 h at the stabilized working space temperature. The last hour of the temperature-soaking time shall be considered to be the first hour of the exposure period. BS EN 60068-2-53:2010 8 60068-2-53 IEC:2010 If slow temperature change test or damp heat cyclic test is
46、 performed, the required exposure time starts with the beginning of temperature change. If the specimen is mounted on shock absorbers, time shall be given for temperature stabilization of the absorber elements. 3.3 Dynamic test information The relevant specification shall contain dynamic test inform
47、ation. The dynamic test information includes following details (see also Clause 5): a) identification of dynamic test ( such as sinusoidal, random, mixed mode vibration or impact); b) severities of dynamic stress; c) axis and directions of dynamic stress; d) duration and timing of dynamic stress (se
48、e Annex A); e) IEC 60068-2-47 shall be referred to concerning mounting of specimen; f) other details specified in the reference standards. 3.4 Initial measurement and functional performance test The specimen shall be submitted to the visual, dimensional, functional and any other checks prescribed by
49、 the relevant specification. 3.5 Operating condition of specimen In the case of electrically-operated specimens, the times at which the power supply shall be powered on or off and the voltage of the power supply within each temperature cycle shall be specified in the relevant specification. The times at which other functions such as cooling, heating and various loads are switched on or off shall be stipulated in the relevant specifi
