IEC IEC81346-2 ISO Edition 2.02019-06 INTERNATIONAL STANDARD NORME INTERNATIONALE colour nside HORIZONTALSTANDARD NORMEHORIZONTALE Industrialsystems,installationsandequipmentandindustrialproducts Structuringprinciplesandreferencedesignations- Part2:Classificationofobjectsandcodesforclasses Systemesindustriels,installations etappareils,etproduitsindustriels- Principes destructuration etdesignationsdereference- Partie 2:Classification desobjets et codes pourles classes IEC 81346-2:2019-06(en-fr) Copyright Inten THISPUBLICATIONISCOPYRIGHTPROTECTED Copyright 2019 IEC, Geneva, Switzerland All rights reserved.Unless otherwise specified,nopartof this publicationmaybereproduced orutilized in anyform 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 your local IEC member National Committee for further information. Droitsde reproductionreserves.Sauf indicationcontraire,aucunepartiede cettepublication nepeut etre reproduite ni utilisee sous quelque forme que ce soit et par aucun procede, électronique ou mecanique, y compris la photocopie et les microfilms, sans I'accord écrit de I'IEC ou du Comite national de IlEC du pays du demandeur. Si vous avez des questions sur le copyright de 'iEC ou si vous desirez obtenir des droits supplementaires sur cette publication, utilisez lescoordonnéesci-apresoucontactezleComiténationaldeI'lECdevotrepaysderesidence. IEC Central Office Tel.:+41229190211 3, rue de Varembe info@iec.ch CH-1211 Geneva 20 www.iec.ch Switzerland AbouttheIEC TheInternational Electrotechnical Commission (IEC)is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. AboutIECpublications The technical content of IEC publications is kept under constant review by the IEc. Please make sure that you have the latestedition,acorrigendumoranamendmentmighthavebeenpublished. IECpublicationssearch-webstore.iec.ch/advsearchform Electropedia-www.electropedia.org The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology, variety ofcriteria (referencenumber, text, technical containing more than 22 000 terminological entries in English committee,...).It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages. and withdrawn publications AlsoknownastheInternationalElectrotechnical Vocabulary (IEV) online. IECJustPublished-webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published IECGlossary-std.iec.ch/glossary details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and oncea month by email. French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been IECCustomerServiceCentre-webstore.iec.ch/csc collected from earlierpublications of IECTC 37,77,86and Iif you wish to give us your feedback on this publication or CISPR. needfurtherassistance,pleasecontacttheCustomerService Centre:sales@iec.ch. Apropos de IIEc La Commission Electrotechnique Internationale (IEC) est la premiere organisation mondiale qui elabore et publie des Normes internationales pour tout ce qui a trait a 'electricite, a 'electronique et aux technologies apparentees. AproposdespublicationsIEc LecontenutechniquedespublicationsIEC estconstammentrevu.VeuillezvousassurerquevouspossedezI'édition la RecherchedepublicationsIEC Electropedia-www.electropedia.org webstore.iec.ch/advsearchform Le premier dictionnaire d'electrotechnologie en ligne au La recherche avancee permet de trouver des publications IEC monde, avec plus de 22 000 articles terminologiques en en utilisant differents criteres (numero de reference,texte anglais et en francais, ainsi que les termes équivalents dans