Workers patrol to ensure power supply during snowy weather in SW China

Workers of China Southern Power Grid Company measure the thickness of ice covering the power circuit on the Meihua Mountain, southwest China's Guizhou Province, Feb. 2, 2018. Several observing stations are set around the Meihua Mountain by local power grid companies to prevent the breakdown of power grid during the snowy weather. (Xinhua/Tao Liang)