Railway applications - DC surge arresters and voltage limiting devices - Part 1: Metal-oxide surge arresters without gaps
铁路用直流电涌放电器和限压装置第1部分:无间隙金属氧化物电涌放电器
IEC 62848-1:2016 applies to non-linear metal-oxide surge arresters without gaps for both on board and fixed installations, designed to limit voltage surges on DC systems specified in IEC 60850 with nominal voltage up to 3 kV.