IEC 62271-104-ed.3.0

Anotace textu normy IEC 62271-104-ed.3.0 :

IEC 62271-104:2020 is applicable to three-pole alternating current switches for rated voltages higher than 52 kV, having making and breaking current ratings, for indoor and outdoor installations, and for rated frequencies up to and including 60 Hz. This third edition replaces and cancels the second edition published in 2015. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - new numbering, following IEC 62271-1:2017. LIEC 62271-104:2020 est applicable aux interrupteurs a courant alternatif triphase de tension assignee superieure a 52 kV, ayant des pouvoirs de coupure et de fermeture assignes, prevus pour les installations a linterieur et a lexterieur, et de frequence assignee inferieure ou egale a 60 Hz. Cette troisieme edition remplace et annule la deuxieme edition parue en 2015. Elle constitue une revision technique. Cette edition inclut la modification technique majeure suivante par rapport a ledition precedente: - nouvelle numerotation selon lIEC 62271-1:2017.