China's 1st trans-provincial subway marks key milestone

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The 110-kilovolt Baimajing Substation in the High-tech Zone of Kunshan, Jiangsu province, successfully delivered power recently, marking the completion of the power supporting project of Suzhou Rail Transit Line 11 and the whole electrification of the trans-provincial subway line from the downtown of Suzhou to the downtown of Shanghai.

The project is a demonstration project of connected infrastructure in the integration of the Yangtze River Delta.

Suzhou Rail Transit Line 11 is the first trans-provincial subway traffic connecting Jiangsu with Shanghai and the only trans-provincial subway line in China.

With a total length of 41.25 kilometers, the subway line starts from Weiting Station in Suzhou Industrial Park in the west and ends in Kunshan in the east. At Huaqiao Station, passengers can transfer to Shanghai Line 11.

It will better connect the downtown of Suzhou, Kunshan and Shanghai and bring the coordinated development of the urban cluster in the Yangtze River Delta.

State Grid Suzhou Power Supply Company started constructing the power supporting project of Suzhou Rail Transit Line 11 in February 2022.

The power supporting project built 19 kilometers of 110-kV transmission lines, spanning Beijing-Shanghai Railway, Danyang–Kunshan Grand Bridge and Loujiang River twice each. The construction was difficult and took a long period of time.

Currently, the trial operation of Suzhou Rail Transit Line 11 is drawing to a close. It is expected that a trial operation with passengers will be carried out in the middle of this year.

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