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Reconstructive Metro-DK20
DK20G metro train has been in operation for more than ten years in Beijing subway Line 1. In 2004, Beijing Subway Rolling Stock Works applied new technology, new workmanship and new materials to overhaul and reconstruct the original vehicle, after which, the train not only was improved in the fire safety level, but also significantly improved in the comfort of passengers, mainly in the following aspects: The interior decoration of the passenger compartment and the driver's cab was all redesigned to fully embody the people-oriented service concept and maximize the comfort of passengers. And the interior design conforms to DIN5510 standard; The static inverter system was used to replace the generator set, which increased the power capacity and reduced the noise; A new type of broadcasting information system was adopted, which had the functions of sounding, displaying the synchronous automatic station announcement and emergency alarm intercom; The train bus was added to solve the problem of auxiliary power failure when the vehicle passes through the power failure area.
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