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随着电力工业的发展,鋼筋混凝土电杆的需要量也日益增加。但目前用离心法生产的普通配筋电杆重量大(8～10m长的电杆重达800～1000kg),抗裂性差,不便于运輸。为了克服这些缺点,制造出重量輕、抗裂性好、成本低的电杆,现在对几种不同型式的电杆,作如下的对比分析,供参考。一、組装电杆組装电杆卽在工厂中預先制好零件,然后在現場上拼装?M装电杆有由数节拼装而成的单根式和A型、Л型等非单根式几种。A型、Л型組装电杆的材料消耗量很大,成本較高,仅用在110千伏以上高压輸电线路上。单根式的組装电杆由2～3段組成,每段长5～6
With the development of the power industry, the demand for reinforced concrete poles is also increasing. However, the conventional reinforced bars produced by centrifugation have a large weight (800-1000 kg for poles of 8 to 10 m in length), and have poor crack resistance and are not easy to transport. In order to overcome these disadvantages, a light pole, a good crack resistance, and a low cost pole are manufactured. Now the following comparative analysis of several different types of poles is provided for reference. First, the assembly of pole assembly poles prefabricated parts in the factory, and then assembled on the spot? M installed poles assembled from several sections of the single-and A-type, Л-type and other non-single Species. A-type, Л-type assembled pole material consumption is very large, the cost is higher, only used in 110 kV high voltage transmission lines. The single pole assembly pole consists of 2 to 3 segments, each of which is 5 to 6 inches long.