1、NORME INTERNATIONALE INTERNATIONAL STANDARD a Commission Electrotechniaue Internationale International Electrotechnicai Commission MeMAyHapOAHaFi 3 n e r p o e x q e c a K O M W X W I Relais lectriques Vingt et unime partie:Essais de vibrations,de chocs,de secousses et de tenue aux sismes applicable
2、s aux relais de mesure et aux dispositifs de protection Section deux-Essais de chocs et de secousses Electrical relays Part 21:Vibration,shock,bump and seismic tests on measuring relays and protection equipment Section Two-Shock and bump tests CE1 IEC 255-21-2 Premire dition First edition 1988 Publi
3、cation 255-21-2:1988 Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I E C 255 PT*23-2 8 4844893 0023590 3 W Rvision de la prsente publication Revision of this publication Le
4、contenu technique des publications de la CE1 est constam-ment revu par la Commission afin dassurer quil reflte bien ltat actuel de ia technique.The technical content of IEC publications is kept under con-stant review by the IEC,thus ensuring that the content reflects current technology.Les renseigne
5、ments relatifs ce travail de rvision,Itablis-sement des ditions rvises et aux mises jour peuvent tre obtenus auprs des Comits nationaux de ia CE1 et en consultant les documents ci-dessous:Information on the work of revision,the issue of revised edi-tions and amendment sheets may be obtained from IEC
6、 National Committees and from the following IEC sources:0 Bulletin de Ia CE1 o IEC Bulletin o Annuaire de la CE1 o IECYearbook o Catalogue des publications de la CE1 Publi annuellement o Catalogue of IEC Publications Published yearly Terminologie Terminology En ce qui concerne la terminologie gnrale
7、,le lecteur se repor-tera la Publication 50 de la CEI:Vocabulaire Electrotechnique International(VEI),qui est tablie sous forme de chapitres spars traitant chacun dun sujet dfini,lIndex gnral tant publi sparment.Des dtails complets sur le VE1 peuvent tre obtenus sur demande.For general terminology,r
8、eaders are referred to IEC Publica-tion 50:International Electrotechnical Vocabulary(IEV),which is issued in the form of separate chapters each dealing with a specific field,the General Index being published as a separate booklet.Full details of the IEV will be supplied on request.Les termes et dfin
9、itions figurant dans la prsente publication ont t soit repris du VEI,soit spcifiquement approuvs aux fins de cette publication.The terms and definitions contained in the present publication have either been taken from the IEV or have been specifically approved for the purpose of this publication.Sym
10、boles graphiques et littraux Graphical and letter symbols Pour les symboles graphiques,symboles littraux et signes d.usage gnral approuvs par la CEI,le lecteur consultera:-la Publication 27 de la CEI:Symboles littraux utiliser.en-la Publication 617 de la CEI:Symboles graphiques pour For graphical sy
11、mbols,and letter symbols and signs approved by the IEC for general use,readers are referred to:-IEC Publication 27:Letter symbols to be used in electrical-IEC Publication 617:Graphical symbols for diagrams.lectrotechnique;technology;schmas,Les symboles et signes contenus dans la prsente publication
12、ont t soit repris des Publications 27 ou 617 de la CEI,soit spcifiquement approuvs aux fins de cette publication.The symbols and signs contained in the present publication have either been taken from IEC Publications 27 or 617,or have been specifically approved for the purpose of this publication.Pu
13、blications de la CE1 tablies par le mme Comit dEtudes Technical Committee IEC publications prepared by the same Lattention du lecteur est attire sur le deuxime feuillet de la couverture,qui numre les publications de la CE1 prpares par le Comit dEtudes qui a tabli la prsente publication.The attention
14、 of readers is drawn to the back cover,which lists IEC publications issued by the Technical Committee which has prepared the present publication.Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without lic
15、ense from IHS-,-,-NORME INTERNATIONALE INTERNATIONAL STANDARD Commission Eiectrotechnique Internationale International Electrotechnical Commission M eCiyHapoAHafl 3 n eHpoex 1 1 ecHaR KOM MCCWR Relais lectriques Vingt et unime partie:Essais de vibrations,de chocs,de secousses et de tenue aux sismes
16、applicables aux relais de mesure et aux disp-sitifs de protection Section deux-Essais de chocs et de secousses Electrical relays Part 21:Vibration,shock,bump and seismic tests on measuring relays and protection equipment Section Two-Shock and bump tests O C E I 1988 Droits de reproduction rservs-Copyright-all rights reserved Aucunepartiedecettepublicationnepeuttrereproduiteniutilisesousquelqueforme que ce soit et par aucun procd,lectronique ou mcanique,y compris la photocopie et les microfilms,s
