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.
EN IEC 62271-104:2020由欧洲电工标准化委员会 IX-CENELEC 发布于 2020-10-02,并于 2020-12-25 (7) 实施,于 2023-09-25 (7) 废止。
EN IEC 62271-104:2020在国际标准分类中归属于: 29.130.10 高压开关装置和控制器。
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