电梯、自动扶梯和自动人行道安全相关的可编程电子系统的应用 第3部分: PESSRAL和PESSRAE相关的可编程电子系统的生命周期指南
Programmable electronic systems in safety-related applications for lifts (elevators), escalators and moving walks—Part 3: Life cycle guideline for programmable electronic systems related to PESSRAL and PESSRAE