EN 50306-4:2002 Railway applications Railway rolling stock cables having special fire performance Thin wall Part 4: Multicore and multipair cables standard wall sheathed
1970EN 50306-4:2020 Railway applications Railway rolling stock cables having special fire performance Thin wall Part 4: Multicore and multipair cables standard wall sheathed
2002EN 50306-4:2002 Railway applications Railway rolling stock cables having special fire performance Thin wall Part 4: Multicore and multipair cables standard wall sheathed