EVS-EN 61508-2:2003

This parts of the standard series is intended to be used only after a through understanding of part 1, which provides the overall framework for the achievement of functional safety, applies  to any safety-related system, as defined by part 1, which contains at least one electrical, electronic or programmable electronic based component, applies to all subsystems and their components within an E/E/PE safety-related system (including sensors, actuators and the operator interface); and specifies requirements for activities that are to be applied during the design and manufacture of the E/E/PE safety-related systems (ie establishes the E/E/PES safety lifecycle model).