DIN EN 16704-2-2-2017 轨道交通. 轨道. 轨道工作期间的安全保护. 第2-2部分: 常见解决方案和技术. 障碍物要求; 德文版本EN 16704-2-2-2016
Railway applications - Track - Safety protection on the track during work - Part 2-2: Common solutions and technology - Requirements for barriers; German version EN 16704-2-2:2016