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 2.7 kilometres (1.7 mi) south of Damao Island (Chinese: 大猫岛, dà māo dǎo). This span uses two 370-metre-tall (1,210 ft) pylons, which were the highest electricity pylons in the world, until a 500 kV line to Zhoushan from mainland was completed. The north tower on Damao Island was completed in 2009, and the south tower on Liangmao Island (Chinese: 凉帽岛, liángmào dǎo) was completed in 2010. These pylons resemble those of the Messina Strait, but are steel-tube lattice structures.^[1]

• 29°56′2.78″N 122°2′10.12″E / 29.9341056°N 122.0361444°E / 29.9341056; 122.0361444 (Zhoushan Island Overhead Powerline Pylon, 370-metre tower)
• 29°54′41.39″N 122°1′26.38″E / 29.9114972°N 122.0239944°E / 29.9114972; 122.0239944 (Zhoushan Island Overhead Powerline Pylon, 370-metre tower)

• Lattice tower
• List of tallest freestanding structures in the world
• List of tallest freestanding steel structures

• SkyscraperPage - Damao Island Span North Tower and South Tower
• http://www.imaginechina.com/showStoryDetail.ic?id=pau301776###

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