IEC 62271-201-ed.3.0

Detail information

Designation: IEC 62271-201-ed.3.0

Publication date: 22/07/2026

Pages: 238

Country: International technical standard

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Anotation

IEC 62271-201:2026 is applicable to prefabricated solid-insulation enclosed switchgear and controlgear assemblies designed for: – alternating current; – rated voltages above 1 kV and up to and including 52 kV; – service frequencies up to and including 60 Hz; – indoor installation; – areas limited to authorized personnel. The assembly can include either air-insulated or fluid-filled compartments, or both. For components installed in a solid-insulation enclosed switchgear and controlgear, this document supplements or even replaces in some cases, the requirements as stated by the individual product standards. The list of components which can be inside the solid-insulation enclosed switchgear and controlgear is not limited to the ones explicitly cited in this document. This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) aligned with the third edition of IEC 62271-200 published in 2021 and its Amendment 1 published in 2024, for structure, definitions, classifications, ratings and testing procedures, where appropriate; b) clause numbering aligned with IEC 62271-1:2017, including the adoption of the subclause names of Clause 3; c) in Clause 3 specific terms and definitions are added for "in service", "normal operating condition" and "normal use"; d) earthing circuit is more precisely described, including ratings and test requirements; e) number of mechanical tests on interlocks is reduced for type testing; f) forces to apply during type testing are better prescribed (refer to 7.102); g) resistance measuring on main circuit is only needed before continuous current tests (as reference for routine tests) and not anymore needed after this continuous current test. Rationale for this deletion is that this measured resistance does not mean anything; as the temperature rise test was just finished, a new temperature rise test will not give new information; h) IEC 62271-100:2021 has been taken into account in 7.101.2; i) IEC 62271-107:2019 and IEC IEEE 62271-37-013:2021 are also considered in 7.101.2; j) LSC category is more precisely described, including an explaining flowchart (Annex G); k) examples not covered by the IAC test are transferred from Clause 6 to 9.103; l) the term "assembly" is defined in Clause 3 and used as synonym for "solid-insulation enclosed switchgear and controlgear" in this document; m) "metallic" is replaced by "metal" where applicable; n) a 1 s rule was introduced for Criterion 4 during IAC tests regarding hot gases versus glowing particles as cause of ignition; o) internal arc tests for switchgear with protrusions are more precisely described in Annex A; p) partitions accessible in normal use are now PA, PB1 or PB2 instead of PI which has been removed (refer to 6.103.3) LIEC 62271-201:2026 sapplique aux ensembles dappareillages prefabriques sous enveloppe isolante solide concus pour: – le courant alternatif; – des tensions assignees superieures a 1 kV et inferieures ou egales a 52 kV; – des frequences de service inferieures ou egales a 60 Hz; – etre installes a linterieur; – les zones limitees au personnel autorise. Lensemble peut inclure des compartiments isoles dans lair ou a remplissage de fluide, ou les deux. Pour les composants installes dans un appareillage sous enveloppe isolante solide, le present document complete, voire remplace dans certains cas, les exigences indiquees dans les differentes normes de produit. La liste des composants qui peuvent se trouver a linterieur de lappareillage sous enveloppe isolante solide nest pas limitee a ceux explicitement cites dans le present document. Cette troisieme edition annule et remplace la deuxieme edition parue en 2014. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) alignement sur la troisieme edition de lIEC 62271-200 publiee en 2021 et sur son Amendement 1 publie en 2024 pour la structure, les definitions, les classifications, les caracteristiques assignees et les procedures dessai, le cas echeant; b) alignement des numeros darticles et de paragraphes sur lIEC 62271-1:2017, y compris ladoption des intitules de paragraphes de lArticle 3; c) a lArticle 3, des termes et definitions specifiques ont ete ajoutes pour "en service", "condition normale de fonctionnement" et "utilisation normale"; d) le circuit de mise a la terre est decrit de maniere plus precise, y compris les caracteristiques assignees et les exigences dessai; e) le nombre dessais mecaniques sur les verrouillages a ete reduit pour les essais de type; f) les forces a appliquer pendant les essais de type sont mieux specifiees (voir le 7.102); g) un mesurage de resistance sur le circuit principal nest necessaire quavant des essais au courant permanent (comme reference pour des essais individuels de serie) et nest plus necessaire apres cet essai au courant permanent. Cette suppression est justifiee par le fait que la resistance ainsi mesuree ne constitue pas une donnee pertinente; comme lessai dechauffement vient de sachever, un nouvel essai dechauffement ne donnera pas de nouvelles informations; h) lIEC 62271-100:2021 a ete prise en compte dans le 7.101.2; i) lIEC 62271-107:2019 et lIEC IEEE 62271-37-013:2021 sont egalement prises en compte dans le 7.101.2; j) la categorie LSC est decrite de maniere plus precise, avec un logigramme explicatif (Annexe G); k) les exemples qui ne sont pas couverts par lessai IAC ont ete transferes de lArticle 6 au 9.103; l) le terme "ensemble" est defini a lArticle 3 et est utilise comme synonyme d"appareillage sous enveloppe isolante solide" dans le present document; m) ladjectif "metallique" a ete remplace par "en metal", le cas echeant; n) une regle de 1 s a ete adoptee pour le Critere 4 pendant les essais IAC concern