Abstract:

To identify potential safety risks in existing escalators and moving walks and improve the safety of its use, and provide technical basis for the renovation of escalators and moving walks, based on analysis of international and domestic safety assessment standards for escalators and moving walks, combined with the safety assessment experience of lifts, escalators and moving walks, with the principle of being close to the construction and installation rules and inspection procedures and making the actual assessment work operable, in the absence of safety assessment rules and standards for escalators and moving walks at the national level, referred to the safety assessment model of traction and positive drive elevators, the basic idea and system method for the safety assessment of escalators and moving walks were put forward, 88 scenarios of escalators and moving walks were determined in 10 parts, the individual assessment and whole equipment evaluation were carried out, the critical score of the whole equipment risk level was calculated and determined, and the methods of reducing the risk were put forward. The results show that the basic idea and system method are compatible with the existing lift regulation and standard system in China, and can be used to comprehensively assess the safety status of existing escalators and moving walks.

Key words: escalators and moving walks, safety assessment, system methods, risk evaluation, risk analysis