IEC 62271-108-ed.2.0

Detail information

Designation: IEC 62271-108-ed.2.0

Publication date: 09/07/2020

Pages: 42

Country: International technical standard

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Anotation

IEC 62271-108:2020 applies to high-voltage alternating current disconnecting circuit-breakers for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 52 kV. This second edition cancels and replaces the first edition published in 2005. This edition contains the following significant technical changes with respect to the previous edition: - The document has been restructured according to IEC 62271-1:2017. - The document has been adapted to some of the changes introduced in IEC 62271-100:–[1]. - The document has been adapted to some of the changes introduced in IEC 62271-102:2018. - References have been reviewed and updated. - Some definitions have been reviewed and adapted to the latest IEV editions. - Rated static terminal load and static terminal load test have been removed and a design requirement for static mechanical loads has been included. - Additional type tests for auxiliary and control circuits have been included. - X-radiation test procedure for vacuum interrupters has been included. - Type test for testing of interlocking device and type test for testing of temporary mechanical locking devices have been included. - Special requirements for making and breaking tests on class E2 disconnecting circuit-breakers have been removed. [1] Under preparation. Stage at the time of publication: IEC CDV 62271-100:2020. LIEC 62271-108:2020 sapplique aux disjoncteurs-sectionneurs a courant alternatif a haute tension fonctionnant a des frequences de 50 Hz et 60 Hz sur des systemes de tensions assignees superieures a 52 kV. Cette deuxieme edition annule et remplace la premiere edition parue en 2005. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: - le document a ete restructure conformement a lIEC 62271-1:2017; - le document a ete adapte a certaines des modifications introduites dans - lIEC 62271-100:–[1]; - le document a ete adapte a certaines des modifications introduites dans lIEC 62271-102:2018; - les references ont ete revisees et mises a jour; - certaines definitions ont ete revisees et adaptees aux dernieres editions de lIEV; - leffort statique assigne sur les bornes et lessai defforts statiques sur les bornes ont ete supprimes et une exigence de conception pour les charges mecaniques statiques a ete ajoutee; - des essais de type complementaires ont ete ajoutes pour les circuits auxiliaires et de commande; - une procedure dessai de rayonnement X a ete ajoutee pour les interrupteurs a vide; - des essais de type ont ete ajoutes pour le dispositif de verrouillage et les dispositifs de verrouillage mecanique temporaire; - les exigences speciales pour les essais detablissement et de coupure des disjoncteurs-sectionneurs de classe E2 ont ete supprimees. [1] En cours delaboration. Stade au moment de la publication: IEC CDV 62271-100:2020.