CEI EN 50126-1:2019 铁路、有轨电车、无轨电车和地铁应用 可靠性、可用性、可维护性和安全性 (RAMS) 的规范和演示 第1部分:一般 RAMS 过程
Railway, tram, trolleybus and metro applications - Specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) Part 1: General RAMS process