Dual-voltage suburban line opened in Chongqing

CHINA: The Jiangtiao suburban line in Chongqing has opened, linking Tiaodeng with Shengquansi. An unusual feature of the line is dual voltage electrification, with the northern section from Tiaodeng to Shilinsi and the Zhongliangshan tunnel electrified at 1·5 kV DC and the rest of the route at 25 kV 50 ...