Qinghai-Tibet grid interconnection project under annual centralized maintenance

在青海省海西蒙古族藏族自治州格爾木市唐古拉山鎮境內，檢修人員在巡檢中（6月3日攝）。 5月底，被譽為“電力天路”的青藏聯網工程迎來年度集中檢修，超過420人將在15天內完成608公里的輸電線路及柴達木換流站的檢修工作。在平均海拔超過4500米的長江源頭腹地，檢修人員克服高寒缺氧的環境，在云端走線巡檢，成為“電力天路”一道獨特的風景。自2012年起，國家電網青海省電力公司每年對青藏聯網工程開展年度集中檢修，對設備進行全方位“體檢”和“診療”，以保障連接西藏的能源通道安全平穩運行。截至目前，青藏聯網工程已累計向西藏輸送電量超過105億千瓦時，為西藏經濟社會高質量發展提供了可靠的能源保證。新華社記者張宏祥攝

Workers conduct power grid maintenance work at Tanggulashan Township of Golmud City in the Mongolian-Tibetan Autonomous Prefecture of Haixi, northwest China's Qinghai Province, June 3, 2023. Since 2012, the State Grid's Qinghai Electricity Power Company would conduct its annual centralized maintenance of the Qinghai-Tibet grid interconnection project, whose grid lines are laid at the plateau with an average altitude of 4,500 meters. Low temperatures, lack of oxygen and strong winds on the plateau challenge the operation and maintenance of the grid. Over 420 workers would finish this year's maintenance work of 608-kilometer-long power transmission lines as well as the Qaidam Converter Station in 15 days recently. Over 10.5 billion kWh of electricity has been transferred to Tibet through the Qinghai-Tibet grid interconnection project, which was put into operation in 2011. (Xinhua/Zhang Hongxiang)