The closer to the trial operation of the traffic, the first phase of the Sichuan Line of the Wuhan Rail Transit Phase I "Dentong"

Polar news reporter Li Xiancai

Photography reporter Song Biotao

Correspondent Zeng Si Yuan Yonghua Pan Xing

On August 1st, Wuhan Metro Group announced that on July 31, the first phase of the Sichuan Line of Wuhan Rail Transit was successful, marking the success of the power supply system equipment of the line. Provides strong power guarantees. This also means that the first phase of the Sichuan line before the rail transit has taken a big step away.

The first phase of the Qianchuan Line extends from the north station of Line 7, and the entire line is 21.12 kilometers. There are 7 stations along the way. On June 20 this year, the project has achieved track targets.

According to reports, the power supply system is hailed as the "heart" of the subway, providing power support and energy supply for the safe and stable operation of the subway. From the 220 kV substation of the State Grid, the power supply is transported to the main substation of the subway through the lower voltage to 110 kV Then, the main transformer of the subway is transferred to 35 kV to the substations across the line to provide power guarantee for the operation of the rail vehicle. The project's power supply system contains a total of 8 traction and hybrid variables, 1 -seater anti -voltage substation, and 3 follow -up voltage substation; a total of 786 electrical equipment is installed, and 140 kilometers of high -voltage cables are laid.

Refined construction with national excellent standards. In accordance with the refined construction of the national excellent standards, the innovation has obtained 7 results in the quality improvement of basic ground wire fixing, cable hole fixation, the installation of the sedimentation of the telescopic area, and the adjustment of the installation of the rail base. In order to facilitate the latter maintenance and maintenance of the operation, the project department uses the "one -hole and one cable" process of the secondary cable to use the insulation board to lock the mother. The surroundings are tightly blocked, and they are distinguished according to the cable attributes and phase sequences. The visual effects are obvious. Each cable is clear at a glance, and there is no need to be recognized repeatedly during maintenance.

Staff check equipment operation

"We took the 'hard bone' at 90 sunroofs." Ye Nian, the person in charge of the construction of the China Railway Wuhan Electrification Bureau, introduced that there are two cable connection construction in the first phase of the Qianchuan Line. The power supply is introduced in the North Station of Line 7. After the construction requires the operation and revenue on the day of Line 2 and Line 7 and stop the power supply at the interval, the construction staff uses it at 00:00 in the morning to 3:30 am. At 00:00 every morning, the operators carry the equipment into the underground interval. At 3 o'clock in the morning, all the established tasks on the day must be completed; at 3:30, the staff, equipment, and the construction.

Staff check equipment operation

On August 1, Jimu Journalists noticed at Hengdian Station that the supporting facilities of the affiliated to the station are accelerating construction. The other six stations are also sprinting.

Sun Zibo, the head of the power supply project of the Wuhan Metro Group's construction business headquarters, said that "Diantong" is an important milestone node for subway construction. As the first phase of the Qianchuan Line project is "lit". The power consumption required for this project has changed from temporary power consumption to formal electricity, which also means that the signals, power lighting, ventilation, water supply drainage, escalators, and automatic ticket vending machines in all stations of the line will enter the acceptance Electricity Decentralization and implementation of functional stages. Electric Connect will also provide continuous power support for the cold, hot, comprehensive joint and trial operation of subway trains.

The Qianchuan Line is one of the important passenger corridors in Wuhan. After completion, it will bring great convenience to the travel of residents of Qianchuan, Hengdian, and Panlong City. The pivot distribution capacity is of great significance to promote the construction of the urban economy in the northern part of Wuhan.

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