Safe rail transit platform screen door system

Abstract

The invention discloses a safe rail transit platform screen door system. The safe rail transit platform screen door system comprises platform screen doors and top boxes arranged above the platform screen doors. All the platform screen doors are made of insulating materials or wrapped by the insulating materials. Each top box is mainly provided with a platform screen door control device, platform screen door drive equipment and a power distribution unit, and the platform screen door control device, the platform screen door drive equipment and the power distribution unit are grounded. According to the safe rail transit platform screen door system, the platform screen doors on a platform are not electrically connected with a railway, and rail electric potential is not led to the platform screen door system or a station platform suspended ceiling. The door bodies of the platform screen doors are not made of conventional stainless steel materials or metal materials but the insulating materials (or metal materials wrapped by the insulating materials). When a train draws up at the station and passengers get on and get off the train, the materials touched by human bodies are all insulating materials, and therefore the electrical safety problem caused by the platform screen doors does not need to be considered.

Description

technical field [0001] The invention relates to a screen door system, in particular to a safe rail transit screen door system. Background technique [0002] At present, the station screen door system of rail transit engineering mainly includes power distribution system, control system, platform insulation belt, door body, top box on the door body and installation components. [0003] The screen door system in the equipment area adopts a three-phase four-wire power distribution system and TN-S grounding form, that is, the exposed conductive part of the electrical equipment of the screen door system is connected to the ground grid through PE wire or grounding busbar. [0004] The platform screen door system adopts rail connection and is insulated from the ground. That is: the metal door body of the screen door adopts insulation installation, and the upper and lower metal components of the screen door body are insulated from the civil structure through the insulation component...

AI Technical Summary

Problems solved by technology

The insulation performance of the insulation sleeve is greatly affected by the operation time and the surrounding environment. The operation time is long, the insulation sleeve is aging, the insulation performance is reduced, the environment is humid, the insulation performance is reduced, and finally the insulation sleeve does not have the proper insulation effect

[0006] In addition, there is no (and difficult) real-time monitoring of the performance of the insulating sleeve, and it is not easy to be found when its performance is degraded or damaged. The distance between the metal components is very close, which is easy to cause flashover, breakdown or burning, especially when the metal component falls between the two, a short circuit occurs, the short circuit current is large, and it is easy to cause a fire

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