Tensile support strenghth measurement method

摘要

A method and system determines probable strength degradation in a tensile support in an elevator system by monitoring a condition of an elevator tensile support. One example system determines a relationship between strength degradation and various physical factors, such as the rate of degradation for a given load (102), operating environment information for the tensile support (104), and estimated usage data (106), to obtain a map of mean degradation (100). This map of mean degradation (100) is then used to generate one or more maps linking the strength degradation and electrical characteristic.