IEC IECTS63058 Edition1.02021-01 TECHNICAL SPECIFICATION SPECIFICATION TECHNIQUE colour nside Switchgear and controlgear and their assemblies for low voltage- Environmentalaspects Appareillages et ensembles d'appareillages basse tension- Aspectsenvironnementaux THISPUBLICATIONISCOPYRIGHTPROTECTED Copyright2021IEC,Geneva,Switzerland orbyanymeans,electronic ormechanical, includingphotocopyingandmicrofilm,withoutpermission inwritingfrom copyrightor havean enquiry about obtaining additional rights tothis publication,please contact theaddress below or your local IEC member National Committee for further information. ni utilisee sous quelque forme que ce soit et par aucun procede, electronique ou mecanique,y compris la photocopie et lesmicrofilms,sans I'accord ecrit deI'lEC oudu Comite national de IlEC dupays dudemandeur.Sivous avez des questions surlecopyrightde I'lEC ousivousdesirezobtenirdes droits supplementaires surcettepublication,utilisez lescoordonneesci-apresoucontactezleComitenationaldellECdevotrepaysderesidence. IEC Central Office Tel.:+41229190211 3, rue de Varembe [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC The International Electrotechnical Commission (IEC)is the leading global organization that prepares and publishes International Standardsforall electrical,electronicandrelatedtechnologies. AboutIECpublications The technical contentof IEC publications iskeptunder constantreviewby the IEC.Pleasemake surethat youhave the latestedition,acorrigendumoranamendmentmighthavebeenpublished. IECpublicationssearch-webstore.iec.ch/advsearchform IEConlinecollection-oc.iec.ch The advanced search enables to find IEC publications bya Discover our powerful scarch cngine and read freely all the of criteria(referencenumber,text,technical publications previews.With a subscription you will always variety committee,..).It alsogives information onprojects,replaced haveaccesstouptodatecontenttailoredtoyourneeds. and withdrawn publications. Electropedia-www.electropedia.org IEcJustPublished-webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stayupto dateon all new IEC publications.JustPublished containing more than 22 000 terminological entries in English details all new publications released. Available online and and French, with equivalent terms in18 additional languages. once a month by email. Alsoknown as theInternational Electrotechnical Vocabulary (IEV)online. IECCustomer ServiceCentre-webstore.iec.ch/csc If youwishtogiveus yourfeedback on this publicationor nccdfurtherassistance,plcasecontacttheCustomerService Centre:[email protected]. AproposdeI'IEc La Commission Electrotechnique Internationale (IEC)est la premiere organisation mondiale qui elabore et publie des AproposdespublicationsIEc Le contenu technique des publications IEC est constammentrevu.Veuillez vous assurerquevous possedez I'edition la plus recente, un corrigendum ouamendementpeut avoiréte publie. RecherchedepublicationsIEC- IEConlinecollection-oc.iec.ch webstore.iec.ch/advsearchform Decouvrez notre puissant moteur de recherche et consultez LarechercheavanceepermetdetrouverdespublicationsIEC 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. lesprojetsetlespublicationsremplaceesouretirees Electropedia-www.electropedia.org IEcJustPublished-webstore.iec.ch/justpublished Le premier dictionnaire d'electrotechnologie en ligne au Restez informe sur les nouvelles publications IEC. Just monde, avec plus de 22 000 articles terminologiques en Published detailleles nouvelles publications parues. anglais et en francais,ainsi que les termes equivalents dans Disponibleenligneetunefoisparmoisparemail. 16 langues additionnelles.Egalement appele Vocabulaire Electrotechnique International (iEV) en ligne. Service Clients-webstore.i