浅析电梯上行超速保护装置失效原因

Analysis on Failure Causes of Lifts Upward Overspeed Protecting Device

分析了电梯发生上行超速可能出现的原因。针对某小区电梯上行超速保护装置的类型及其特点，探讨了如何开展该类上行超速保护装置的检验，并分析了该小区大多数电梯上行超速保护装置失效原因。

This paper analyzes the possible causes of lifts upward overspeed. Flow to carry out the inspection according to the charateristics of the type of upward overspeed protecting device. This paper analyzes the failure reasons of upward overspeed protecting device for most of the residential elevators.