2005年6月25日,500kV南京江北变(现改为三汊湾变)至南京东善桥变电所输电线路(含500kV大胜关长江大跨越)投运。至此,江苏电网建设重头戏——500kV西通道输变电工程全线竣工投运,江苏省又增添一条北电南送大通道,从而为该省电网迎峰度夏起到了一定的保障作用。该工程总投资13.4317亿元,是由江苏省电力公司建设的大型500kV输变电工 On June 25, 2005, 500kV Nanjing Jiangbei Substation (now changed to Sanliwan Substation) was put into operation from the transmission line of Nanjing Dongshanqiao Substation (including the 500kV Dashengguan Yangtze River span). So far, the highlight of Jiangsu power grid construction - 500kV West Channel power transmission project completed and put into operation, Jiangsu Province, another North to send a large increase of access, so as to meet the summer peak of the province’s power grid to a certain degree of protection. The project total investment of 1.3431.7 trillion yuan, is a large-scale construction of 500kV power transmission company in Jiangsu Province