DIN EN 50124-1:2004
轨道交通.绝缘协调.第1部分:基本要求.所有电气和电子设备的余隙距离和爬电距离
Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipment; German version EN 50124-1:2001 + A1:2003