DIN EN 62271-214-2017 高压开关设备和控制装置. 第214部分:额定电压1kv以上52kv及以下金属封闭杆式开关设备和控制装置的内部电弧分类(IEC 17C / 667 / CD:2017)
High-voltage switchgear and controlgear - Part 214: Internal arc classification for metal enclosed pole-mounted switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 17C/667/CD:2017)
This part of IEC 62271 specifies requirements for internal arc classification of metal enclosed pole-mounted switchgear used for alternating current of rated voltages above 1 kV and up to and including 52 kV for outdoor pole-mounted installations, and for service frequencies up to and including 60 Hz. Although primarily dedicated to three-phase systems, this standard is also applicable to single-phase and two-phase systems. Enclosures may include fixed and removable components and may be filled with fluid (liquid or gas) to provide insulation.