ZTT successfully finished the construction of Huai River Long-span project above 200 meters altitude. And it has made a historical breakthrough of Chinese power grid construction.
This 1000kV UHV line begins from Anhui Province passes through Zhejiang and Jiangsu Province, and then reaches Shanghai City. The whole line is 656km long. It has the highest voltage and largest capacity all over the world, and it plans to be operated at the end of year 2013.