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Zhoushan Island Overhead Powerline Tie
The Zhoushan Island Overhead Powerline Tie is a 220 kV three-phase AC interconnection of the power grid of Zhoushan Island with that of the Chinese mainland. It runs over several islands and consists of several long distance spans, the longest with a length of south of Damao Island. This span uses two pylons, which were the highest electricity pylons in the world, until 500kV line to Zhoushan from mainland was completed. The north tower on Damao Island (, ') was completed in 2009, and the south tower on Liangmao Island (, ') was completed in 2010. These pylons resemble those of the Messina Strait, but are steel-tube lattice structures. Coordinates * * See also * Lattice tower * List of tallest freestanding structures in the world * List of tallest freestanding steel structures This is a list of tallest freestanding steel structures in the world past and present. To be a freestanding steel structure it must not be supported by guy wires, the list therefore does not include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhoushan Island
Zhoushan Island is the principal and namesake island in the Zhoushan Islands, formerly romanized as the ChusanIslands, an archipelago administered by Zhoushan Prefecture in Zhejiang Province in the People's Republic of China. It is the province's largest island and 3rd-largest in mainland China after Hainan and Chongming. The island is the district seats of both Dinghai and Putuo. The island was the site of the first and second capture of Chusan during the First Opium War. When referred to as a port, the Port of Zhoushan (舟山市) refers to the prefecture-level "city" consisting of Zhoushan island as well as the other nearby outlying islands, in Zhejiang. The former name of Zhoushan was Dinghai (Chinese: 定海). The Port of Zhoushan is a popular port for bulk carriers. Name The name ''Zhoushan'' means "Boat" and refers to the shape of the island on a map. Geography At 30° N. 122° E., it lies northwest to southeast, and has a coastline, at its longest point at i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pylons Of Messina
The Pylons of Messina are two free-standing steel towers, the Sicilian one in Torre Faro and the Calabrian one in Villa San Giovanni. They were used from 1955 to 1994 to carry a 220 kilovolt (150 kilovolt until 1971) power line across the Strait of Messina, between the Scilla substation in Calabria on the Italian mainland at and the Messina-Santo substation in Sicily at . Design The two pylons, built in 1955, are both free-standing steel towers. Each stands on an cross-shaped base and is equipped with a crossbar that carries four conductors at a height of , and another V-shaped structure at the top which carries two additional conductors in addition to ground wires. In contrast to more conventional pylon design, the corners of the pylons are arranged diagonally along the direction of the course of the line. The pylons of Messina were the model for the Elbe Crossing 1 in Germany and were, until the completion of Elbe Crossing 2, the tallest pylons in the world. They did how ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lattice Tower
A lattice tower or truss tower is a freestanding vertical framework tower. This construction is widely used in transmission towers carrying high voltage electric power lines, in radio masts and towers (a self-radiating tower or as a support for aerials) and in observation towers. Its advantage is good shear strength at a much lower weight than a tower of solid construction would have as well as lower wind resistance. In structural engineering the term ''lattice tower'' is used for a freestanding structure, while a ''lattice mast'' is a guyed mast supported by guy lines. Lattices of triangular (3-sided) cross-section are most common, particularly in North America. Square (4-sided) lattices are also widely used and are most common in Eurasia. Lattice towers are often designed as either a space frame or a hyperboloid structure. Before 1940, they were used as radio transmission towers especially for short and medium wave. Occasionally lattice towers consisting of wood were utilized. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tallest Freestanding Structures In The World
This is a list of tallest freestanding structures in the world past and present. To be freestanding a structure must not be supported by guy wires, the sea or other types of support. It therefore does not include guyed masts, partially guyed towers and drilling platforms but does include towers, skyscrapers (pinnacle height) and chimneys.''See Tallest freestanding structures by skyscraperpage.com/ref> Freestanding structures (past or present) over * indicates a structure that is no longer standing. * For all structures the pinnacle height is given, so the height of skyscrapers may be different from the values at List of tallest buildings in the world. * Structures under construction are included in main list if its current height is over . Other freestanding structures (past or present): between and Timeline of world's tallest freestanding structures See also * List of tallest structures by country * List of tallest demolished freestanding structures * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tallest Freestanding Steel Structures
This is a list of tallest freestanding steel structures in the world past and present. To be a freestanding steel structure it must not be supported by guy wires, the list therefore does not include guyed masts and the main vertical and lateral structural elements and floor systems in the case of buildings, are constructed from steel. This type of construction is a rarity today as most tall buildings are built with a composite structure featuring a reinforced concrete core. Oil platforms built using rigid steel jackets, such as the Bullwinkle (oil platform), are included and ranked as the local medium(water) does not provide any horizontal support. In fact they are over engineered specifically to resist water forces them rather than modulate them as compliant towers are designed to do. Demolished structures and structures under construction are also included but not ranked. Steel Structures (above 275 m / 900 ft in height) indicates a structures no longer standing. indicates a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SkyscraperPage
SkyscraperPage is a website for skyscraper hobbyists and enthusiasts that tracks existing and proposed skyscrapers around the world. The site is owned by Skyscraper Source Media, a supplier of skyscraper diagrams for the publication, marketing, and display industries, and is a publisher of illustrated skyscraper diagram poster products. They are based in Victoria, British Columbia. The site has over 60,000 drawings of skyscrapers, other major macro-engineering projects, and tall structures around the world. The scale of the drawings are one pixel per meter. The images are created using pixel art. Using these diagrams, skyscrapers and other tall structures can be compared. General information is also given about each structure if available, such as the location, the year built, the height and the number of floors. The site also hosts a discussion forum for skyscraper enthusiasts. See also * SkyscraperCity * Emporis * List of Internet forums * List of tallest buildings in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Towers Completed In 2009
A tower is a tall structure, taller than it is wide, often by a significant factor. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures. Towers are specifically distinguished from buildings in that they are built not to be habitable but to serve other functions using the height of the tower. For example, the height of a clock tower improves the visibility of the clock, and the height of a tower in a fortified building such as a castle increases the visibility of the surroundings for defensive purposes. Towers may also be built for observation, leisure, or telecommunication purposes. A tower can stand alone or be supported by adjacent buildings, or it may be a feature on top of a larger structure or building. Etymology Old English ''torr'' is from Latin ''turris'' via Old French ''tor''. The Latin term together with Greek τύρσις was loaned from a pre-Indo-European Mediterranean language, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Towers Completed In 2010
A tower is a tall structure, taller than it is wide, often by a significant factor. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures. Towers are specifically distinguished from buildings in that they are built not to be habitable but to serve other functions using the height of the tower. For example, the height of a clock tower improves the visibility of the clock, and the height of a tower in a fortified building such as a castle increases the visibility of the surroundings for defensive purposes. Towers may also be built for observation, leisure, or telecommunication purposes. A tower can stand alone or be supported by adjacent buildings, or it may be a feature on top of a larger structure or building. Etymology Old English ''torr'' is from Latin ''turris'' via Old French ''tor''. The Latin term together with Greek τύρσις was loaned from a pre-Indo-European Mediterranean language, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Powerline River Crossings
Powerline may refer to: Technology * Overhead power line, used for electric power transmission * Power-line communication, a computer networking technology * Powerline, a status line plugin for vim and other application; see Private Use Areas Music and media * ''Powerline'' (magazine), an American music magazine and website * Power Line, a political blog * "Power Lines", a 2016 single by TIGRESS * "Power Lines", a 2012 song by Reks from '' Straight, No Chaser'' * Powerline, a fictional singer in the ''A Goofy Movie ''A Goofy Movie'' is a 1995 American animated musical comedy-adventure film produced by Disney MovieToons and Walt Disney Television Animation. Directed by Kevin Lima, the film is based on The Disney Afternoon television series '' Goof Tro ...'' musical Sport * Powerlines F.C., South African soccer club {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
