Yangtze River Crossing
From Wikipedia, the free encyclopedia
The Yangtze River Crossing may refer to one of three overhead power lines crossing the Yangtze River, China.
Contents |
[edit] Jiangyin
One exists at Jiangyin. It is a section of the 500kV-powerline from the Yan Cheng power station to the Dou Shan substation in the province of Jiangsu. The powerline section running over the river has a span width of 2,303 m (7,556 ft). It is carried by two 346.5 m (1,137 ft) tall suspension electricity pylons, each weighing 4,192 tons, both are tallest electricity pylon in the world. They are both identical lattice towers of square cross section with an area of 68 m (223 ft) × 68 m at the base and 8 m (26 ft) × 8 m at the top. The pylons are of the Danube type carrying 4 conductors on the upper crossbar, 312 m (1,024 ft) above ground with a length of 77 m (253 ft) and two conductors on the upper crossbar. The insulator chains are 10 m (33 ft) long. These pylons, which are both equipped with an elevator, which runs in a cylindrical tube in its center, are much taller than any other electricity pylons built so far and surpass even the Eiffel Tower. On each side of the river are these pylons followed by two anchor towers, for each circuit. They are 55 m (180 ft) tall, weigh 110 tons and stand on an area of 16 m (52 ft) × 24 m (79 ft).
Construction of pylons started on November 8th, 2002. They were completed on April 13th, 2004. On November 18th, 2004 the powerline went into service.
[edit] Nanjing
A 500 kV overhead powerline (with two circuits) crosses the Yangtze River at Nanjing in China built in 1992. It uses two 257 m (843 ft) tall pylons built of reinforced concrete, which may be the tallest pylons built out of concrete in the world. The span width is 2,053 m (6,736 ft).
[edit] Wuhu
There exists an overhead powerline crossing of HVDC Three Gorges-Changzhou (Yangtze River) near Wuhu, which was built in 2003. It consists of two 229 m (751 ft) tall pylons built as constructions of tubular steel, which carry two conductors. The span width of Yangtze River Crossing Wuhu is 1,910 m (6,266 ft).
[edit] See also
- List of tallest buildings and structures in the world
- List of tallest freestanding structures in the world
[edit] External links
- Yangtze River Crossing article from Elevator Magazine
- Yangtze High-Voltage Crossing Pylons in the Structurae database
 |
This article about a building or structure in the People's Republic of China is a stub. You can help Wikipedia by expanding it. |
