DIN EN 16704-3-2017 轨道交通. 轨道. 轨道工作期间的安全保护. 第3部分: 轨道上或附近工作的相关人员的能力; 德文版本EN 16704-3-2016
Railway applications - Track - Safety protection on the track during work - Part 3: Competences for personnel related to work on or near tracks; German version EN 16704-3:2016