An aerial drone photo taken on March 10, 2026 shows maintenance workers checking the ±800 kV ultra-high voltage (UHV) Jintang Line by the Yangtze River in Zongyang County of Tongling City, east China's Anhui Province. (Photo by Zheng Xianlie/Xinhua)

An aerial drone photo taken on March 10, 2026 shows maintenance workers checking the ±800 kV ultra-high voltage (UHV) Jintang Line by the Yangtze River in Zongyang County of Tongling City, east China's Anhui Province. (Xinhua/Zhou Mu)

An aerial drone photo taken on March 10, 2026 shows maintenance workers checking the ±800 kV ultra-high voltage (UHV) Jintang Line by the Yangtze River in Zongyang County of Tongling City, east China's Anhui Province. (Xinhua/Zhou Mu)

An aerial drone photo taken on March 10, 2026 shows maintenance workers checking the ±800 kV ultra-high voltage (UHV) Jintang Line by the Yangtze River in Zongyang County of Tongling City, east China's Anhui Province. (Photo by Zhao Xianfu/Xinhua)

Maintenance workers check the ±800 kV ultra-high voltage (UHV) Jintang Line over the Yangtze River in Zongyang County of Tongling City, east China's Anhui Province, on March 10, 2026. (Xinhua/Zhou Mu)