下硐水电站的变电站于1958年建成。架构为钢筋混凝土结构,施工质量很差,运行二十三年来,八组构架产生大量纵缝,其中六组架构的混凝土出现大面积疏松、剥落,最大孔洞面积达1×0.4米~2,深0.07米,多处钢筋外露、锈蚀。为确保110千伏升压站的安全运行, The substation of Xiaodong Hydropower Station was completed in 1958. The structure is of reinforced concrete structure, the construction quality is very poor. During the twenty-three years of operation, a large number of longitudinal slits are produced in the eight structures, of which the concrete in the six structures has large areas of looseness and spalling with the largest hole area of ​​1 × 0.4-2, deep 0.07 meters, many exposed steel, corrosion. To ensure the safe operation of 110 kV booster station,