Abstract：35 kV high-voltage power transmission and transformation line is a common high-voltage power line, which plays a very important role in high-voltage power transmission. However, due to the high voltage level of 35 kV high-voltage power transmission and transformation, it has certain complexity and technicality in design, and has high requirements for the design of high-voltage overhead power transmission line. The optimization design of the second circuit (Donghuangshui line) of the 35 kV high voltage power transmission and transformation project of Qinglong Coal Industry was given.
