The spacing distance of 110, 220 kV outdoor switching equipments in Tianyuan substation is 1,000 mm shorter than the value specified in design criterions, resulting in a smaller land usage of 700 m2.
龙岩园田变电站110,220kV屋外配电装置间隔宽度比设计规范规定值小1000mm,减少站址占地面积约700m2。