电线杆安装注意事项（Installation of wire rod installation considerations）.docVIP

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电线杆安装注意事项（Installation of wire rod installation considerations）.doc

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电线杆安装注意事项（Installation of wire rod installation considerations）

电线杆安装注意事项（Installation of wire rod installation considerations） 10 kv and the following lines, in the urban area, because of the steel pipe tower that can withstand tension in the area of the corner, so it greatly reduces the use of the cement pole drawing line. But for the vast number of rural power grids, due to the terrain conditions and the limitation of cost, is still a large number of used concrete cement pole, especially in rural households is relatively concentrated, the installation of the line cord there is a big problem, the electric pole thread may seem like a small problems, but also contains a lot of tips. In this paper, we discuss several issues in the current distribution network, especially in the line installation of rural power grid. The problem of drawing line First, the cable is not installed as required. The cable is generally installed in the corner rod, the branch rod, the bar, the terminal rod or the straight rod, is the reinforcement measure of the balance concrete rod in the line. But sometimes in the circuit design or construction, only consider how to reduce the cost of line, or by only considering the ease of construction, the more difficult the guy not to install, etc., due to the lack of line drawing. There is another reason, it is only simple consideration, according to the usual experience without carefully check, dont think there is installation drawing can also, cause stay at should be installed as required. Guy, capsized, line tower stability safety coefficient can not meet the requirements (according to design requirements, the coefficient of the requirements for: 1.5 straight rod, tension rod, 1.8 Angle pole and terminal rod 2.0), resulting in avoidable lamppost, tilt down rod, such as break accident. Second, pull line direction, Angle does not meet the requirement. The pull wire of the terminal rod and the tension bar should be aligned with the direction of the line, and the pull of the corner rod should be aligned with the li