SEGMENTATION SCHEME OF ENGINEERED SAFETY FEATURE

摘要

PURPOSE: A segmentation method of safety equipment is provided to improve safety by adding various functions to the same kind of a machine. CONSTITUTION: The level of dependence between operating functions is calculated(310). A DDM method is applied to the level of dependence. The functions are sorted according to the level of dependence(320). A safety function is allocated in a segment(330). The safety function comprises a functional diversity(350). [Reference numerals] (310) Calculate the level of dependence between operating functions; (320) Sort the functions according to the level of dependence; (330) Allocate a safety function in a segment; (340) Allocate resource to a segment; (350) Secure a functional diversity; (AA) Start; (BB) End