±(?)500kV宜(Yi)华(Hua)直(Zhi)流(Liu)输(Shu)电(Dian)线(Xian)路(Lu)起(Qi)点(Dian)为(Wei)湖(Hu)北(Bei)宜(Yi)昌(Chang)宜(Yi)都(Du)换(Huan)流(Liu)站(Zhan),(?)终(Zhong)点(Dian)为(Wei)上(Shang)海(Hai)华(Hua)新(Xin)换(Huan)流(Liu)站(Zhan),(?)线(Xian)路(Lu)全(Quan)长(Chang)1075公(Gong)里(Li),(?)输(Shu)送(Song)容(Rong)量(Liang)300兆(Zhao)瓦(Wa),(?)是(Shi)三(San)峡(Xia)电(Dian)力(Li)外(Wai)送(Song)的(De)大(Da)动(Dong)脉(Mai)。(?)