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一、电杆 1. 材质的选用和杆间距离的要求铁路电力架空线路的杆塔,在材质选用上,遵照国家颁布的关于节约木材的通知精神,自从进入六十年代以来,除特殊情况使用木材杆外,一般基建工程已较为普遍的使用了钢筋混凝土电杆,过去已架设的旧有木杆塔线路,经过大修技术改造,也逐漸为钢筋混凝土电杆所代替。当然,对于一般油浸木质杆塔在不断的检修维护保养下尚能继续使用一定年限的,还应继续使用。随着钢筋混凝土电杆的广泛采用,对于杆塔的组装架设,在技术上要求与经济合理性方面,正在处于摸索阶段。如杆间距离的大小,
First, the pole 1. The selection of materials and the distance between the poles Rail overhead lines of the tower, the material selection, in accordance with the state promulgated the notice on saving timber spirit, since entering the sixties, except for special circumstances using wood Outside the pole, the general infrastructure projects have been more common use of reinforced concrete poles, the old wooden tower lines have been erected in the past, after overhaul and technological transformation, but also gradually replaced by reinforced concrete poles. Of course, for the general oil-impregnated wooden tower in the maintenance of maintenance can still continue to use a certain number of years, should continue to use. With the widespread adoption of reinforced concrete poles, the tower has been explored in terms of technical requirements and economic rationality. Such as the size of the distance between the poles,