220kv four-circuit cable terminal narrow-base steel tube tower

Abstract

The invention relates to a 220kV four-circuit cable terminal narrow-base steel tube tower, which comprises a tower head and a tower body, wherein the tower head is composed of a ground wire bracket, wire cross arms and a tower head body, the ground wire bracket is arranged at the top end of the tower head body, two ends of each wire cross arm extend out of two sides of the tower head body respectively, the number of the wire cross arms is at least two, and each wire cross arm is arranged on the tower head body. The 220kV four-circuit cable terminal narrow-base steel tube tower is characterized by further comprising a cable platform and at least one cable leading-down bracket, wherein the cable leading-down bracket is transversely arranged at the periphery of the tower head body, the cable platform is arranged at the middle part of the tower body, and the tower head body, the tower body and each wire cross arm form the shape of a Chinese character 'Gan'. The 220kV four-circuit cable terminal narrow-base steel tube tower is beautiful in shape, reasonable in structure, coordinated in stiffness from top to bottom and clear in force transmission, meets process requirements in cable laying and has a strong ability for resisting natural disasters such as wind, ice coating and the like. The 220kV four-circuit cable terminal narrow-base steel tube tower effectively solves a problem of tower model application in 220kV multi-circuit power transmission line overhead and cable conversion, and is small in occupied area.

Description

technical field [0001] The invention belongs to power transmission line engineering, and in particular relates to a narrow-base steel pipe tower for a 220kV four-circuit cable terminal. Background technique [0002] With the continuous development of the national economy, the transmission capacity of the original grid in urban areas can no longer meet the growing demand for electricity. The urban grid needs to be continuously expanded. In order to save urban land, multi-circuit transmission lines are often used. The contradiction between new power grid construction, urban planning and construction, and residents' life is becoming more and more prominent. There are two main solutions. The first is to use cables to enter the ground. However, the construction and maintenance costs of cables are too high. And maintenance is also very difficult. The second is to still use overhead lines, narrowing line corridors and construction land. At present, steel pipe poles are basic...

AI Technical Summary

Problems solved by technology

The narrow-base steel pipe tower of the four-circuit cable terminal can be transported and assembled in parts. The existing narrow-base steel pipe tower for the four-circuit cable terminal is mainly used for the conversion between the overhead of the four-circuit transmission line in the urban area and the conversion of the cable into the ground. Although it bears a large load, however, The number of wire and cable conversion circuits is large, the design process is complicated, the production is troublesome, the cost is high, the floor area is large, and the installation is inconvenient

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