Liu Rui is the deputy foreman, safety officer, technician and engineer of the live line work team of the transmission network in the live line work center of Pu'er Power Supply Bureau of Yunnan Power Grid Co., Ltd.

After "90", he has become a top-notch technical expert of Puer Power Supply Bureau, and has solved many operational problems in the high-voltage live line maintenance of power transmission, transformation and distribution. In 2022, Liu Rui carried out 293 live line maintenance operations for 35kV and above transmission networks, with a cumulative power supply of 183115200 kilowatt hours. The live line defect elimination rate for emergency and major defects was 100%, which not only saved many urban and rural residents from power outages, but also achieved a "zero breakthrough" in the live line work industry of Puer grid substations. Knowing technology, being innovative, daring to take on responsibilities and being dedicated, this post-90s "power guard" has won a number of honorary titles, including the second prize of the 2022 Yunnan Power Grid Science and Technology Progress Award, the second prize of the National Energy Chemistry Geological System Excellent Staff Technology Innovation Achievement Award and so on. Liu Rui is guarding the lights of Pu'er in his own way@ Yunnan Pu'er Federation of Trade Unions