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《铁路电力设计规范(TBJ8—85)》第31页架空线路档距表4.0.21中规定:0.38(0.22)kV线路档距为40～50m,10(6)kV线路档距在居民区为60～80m,附注①站场高低压共杆架设时,档距按0.38kV确定。这在1976年版《铁路工程技术规范·第九篇电力》第9～20页也作过类似的技术规定。现在,在大中城市和铁路大型区段站,建筑物越来越多,建筑物层次也越来越高,架空电力线路的路径也愈加困难。高低压共杆及低压杆安装尺寸见图1,高压线与低压线单独架设的情况正在不断减少,而10kV与0.38kV高低压共杆架设的电力线则不断增
The Code for Designing Railway Electric Power (TBJ8-85) on page 31 of the overhead line schedule stipulates in the table 4.0.21 that the distance of 0.38 (0.22) kV line is 40 ~ 50m and the distance of 10 (6) kV line is 60 ~ 80m, note ① When the high and low pressure station of the station is erected, the span is determined by 0.38kV. Similar technical regulations have also been made on pages 9 to 20 of the 1976 edition of “Technical Specifications for Railway Construction, No. 9 Power.” Now, in large and medium-sized cities and railway sections, there are more and more buildings and higher and higher levels of buildings, and the path of overhead power lines is becoming more and more difficult. High and low voltage poles and low-voltage pole installation dimensions shown in Figure 1, high-voltage lines and low voltage lines erected the situation is declining, and 10kV and 0.38kV high and low voltage common pole erection of the power line is increasing