IEC IEC 60773 Edition 2.02021-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Rotating electrical machines - Test methods and apparatus for the measurement of the operational characteristics of brushes Machines électriques tournantes - Methodes d'essai et appareils pour le mesurage des caracteristiques operationnelles des balais THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2021 IEC, Geneva, Switzerland or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC yourlocalIECmemberNational Committeeforfurther information. Droits de reproduction réserves. Sauf indication contraire, aucune partie de cette publication ne peut etre reproduite et les microfilms,sans I'accord écrit de I'IEC ou du Comite national de I'lEC dupays du demandeur.Si vous avez des questions sur le copyright de I'lEC ou si vous desirez obtenir des droits supplementaires sur cette publication, utilisez les coordonnees ci-apres ou contactez le Comite national de I'EC de votre pays de residence. IECCentralOffice Tel.: +4122 919 02 11 3, rue de Varembé [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC International Standards forall electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition, a corrigendum or anamendment might have been published. IECpublicationssearch-webstore.iec.ch/advsearchform IEC online collection -oc.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the variety of criteria(referencenumber,text,technical publications previews. With a subscription you will always committee, .). It also gives information on projects, replaced have access to up to date content tailored to your needs. and withdrawn publications. Electropedia-www.electropedia.org IECJustPublished-webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology Stay up to date on all new IEC publications.Just Published containing more than 22 000 terminological entries in English details all new publications released.Available online and and French, with equivalent terms in 18 additional languages. once a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IECCustomerServiceCentre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need furtherassistance,pleasecontactthe Customer Service Centre: [email protected]. Apropos de I'IEc La Commission Electrotechnique Internationale (lEC)est la premiere organisation mondiale qui élabore et publie des Normes internationales pour tout ce qui a trait a I'electricite, a I'électronique et aux technologies apparentées. Apropos despublications IEC Le contenutechnique des publications IEC est constamment revu.Veuillez vous assurerquevous possédez I'édition la plusrécente,un corrigendumouamendementpeutavoirétepublié. Recherche de publications IEC - IEC online collection - oc.iec.ch webstore.iec.ch/advsearchform Decouvrez notre puissant moteur de recherche et consultez La rechercheavancee permetde trouverdes publications IEC gratuitement tous les apercus des publications. Avec un en utilisant differents criteres (numero de reference, texte, abonnement, vous aurez toujours acces a un contenu a jour comite d'etudes, .). Elle donne aussi des informations sur adapte a vos besoins. les projets et les publications remplacees ou retirees. Electropedia - www.electropedia.org IECJustPublished-webstore.iec.ch/justpublished Le premier dictionnaire d'électrotechnologie en ligne au Restez informe sur les nouvelles publications IEC. Just monde, avec_ plus de 22 000 articles terminologiques en Publisheddetaille nouvelles publications les parues. anglais et en francais, ainsi