Lifts (elevators), escalators and moving walks — Programmable electronic systems in safety-related applications — Part 1: Lifts (elevators) (PESSRAL)

This document establishes comprehensive requirements for the safety-related application of programmable electronic systems specifically within the domains of lifts, escalators, and moving walks. It focuses on the first section dedicated to lifts, outlining essential guidelines for the design, implementation, and verification of software and hardware components that manage critical safety functions. The standard addresses various aspects including functional safety, reliability, and the management of potential failures in automated control systems. It provides a structured framework for ensuring that electronic systems operate safely under normal conditions and during fault scenarios. The content covers definitions, general principles, and specific technical criteria necessary for achieving a high level of safety integrity. By adhering to these guidelines, stakeholders can mitigate risks associated with electromechanical failures. The scope ensures that safety-related systems meet rigorous performance standards, facilitating global interoperability and trust in vertical transportation technology.