●The world's first leap
The Norwegian Channel is crossedThe pitch is 4570m, relying on the mountains on both sides to erect wires (non-towers).
No. 1 in the world.
Second, the first span in Asia
Zhejiang Zhoushan to the mainland 220 thousand volt networking project, the two towers are located in Ningbo Liangmao Mountain, Zhoushan Big Cat Mountain, large span distance of 2756m,The height of the single-base tower is 370m (the second in the world).Single-base tower heavy5999 tons
The tallest tower in the world:
Jiangsu Fengcheng Wuxi Meili 500 kV power transmission and transformation project, large span 2550m. The height of the single-base tower is 385m, anchor bolts weigh 92t, pole towerFollow 75m
Asia's first leaning tower:
Yunnan (Guizhou) Lubuge Hydropower Station transmission line45° tilt tower
The world's highest voltage level DC transmission line:
±1100kvXinjiang Zhundong (Changji)-Anhui Xuancheng (Guquan) UHVDC transmission line, passing through Xinjiang, Gansu, Ningxia, Shaanxi, Henan, Anhui six provinces and regions, the total length of the line path is about 33047km。
The Qinghai-Tibet interconnection project of the four "electric sky roads".
It was put into operation on December 9, 2011, marking the full interconnection of China's national power grid except Taiwan. It is composed of Xining-Qaidam 750 kV power transmission and transformation project, Qaidam-Lhasa 400 kV DC transmission project, and ** central 220 kV power grid project, with a total length of 2,530 kilometers. The average altitude is 4,000 meters, and the highest altitude is 5,300 meters
The four "electric power road roads" of the Sichuan-Tibet power interconnection project.
It was put into operation on November 20, 2014, ending the history of long-term isolated network operation in Qamdo. The line starts from Xiangcheng County in Ganzi Tibetan Autonomous Prefecture in Sichuan Province in the east, passes through Batang County in the east, and reaches Qamdo in the west with a total length of 1521km.
The power interconnection project in the collection of the four "electric power heavenly roads".
It was put into operation on November 23, 2018, and the voltage level of the ** grid has achieved a leap from 200 kV to 500 kV. 2,738 kilometers of new 500 kV and supporting engineering lines areThe world's largest altitude spanThe power grid engineering, the elevation of the engineering line from2200 meters to 5300 meters
FourAli power interconnection project of the big "electric power road".
It was put into operation on December 4, 2020, forming a unified power grid. The average altitude of the tower is 4,572 meters, and the highest altitude is 5,357 meters. The project tooThe world's most challenging power grid project。It crossed the Brahmaputra River three times, and crossed the Kongtang Lam Mountain and Mayoumula Mountain at an altitude of more than 5,300 meters.
The highest pole tower in the world
* 110 kV Loza transmission line. On September 12, 2017, the construction personnel crossed the Mengda Village section of Luozha County, Shannan City, ** Autonomous RegionThe highest mountain in the world is 5,548 meters above sea levelThe 110 kV Loza transmission line is operating.