DIN EN 50306-3-2003 轨道交通.具备专门防火性能的铁路车辆电缆.薄壁.第3部分:单芯和多芯电缆(双芯、三芯和四芯)屏蔽及薄壁护套
Railway applications - Railway rolling stock cables having special fire performance; Thin wall - Part 3: Single core and multicore cables (pairs, triples and quads) screened and thin wall sheathed; German version EN 50306-3:2002