GB/T 24475-2023 Remote alarm on lifts
GB/T 24475-2023 Remote alarm on lifts
Basic Information
Scope
This document specifies the alarm triggering and transmission, use and maintenance information of the alarm system, as well as the requirements for on-site testing before the elevator is used. This document describes the major hazards, dangerous states, and dangerous events related to elevators, namely: when the elevator is used as intended and under misuse scenarios reasonably anticipated by the manufacturer, there is a risk of users being trapped in the car and shaft. This document applies to the alarm systems of passenger elevators and freight elevators. This document does not apply to: a) communication network failures (see Appendix A), including mobile network signal strength or similar situations; b) power supply network failures causing simultaneous entrapment failures in elevators in the same area; c) elevator remote alarm systems installed before their implementation.