Double-loop power transmission line cable terminal pole

Abstract

The invention relates to the technical field of power transmission and particularly relates to a double-loop power transmission line cable terminal pole. The cable terminal pole comprises a pole body, a ground wire cross arm, a transfer cross arm and a comprehensive platform, wherein the transfer cross arm comprises an upper-layer cross arm, a middle-layer cross arm and a lower-layer cross arm from top to bottom, the three layers of cross arms are mutually crossed in the projection direction of the ground, an end part of each layer of cross arm is provided with a plurality of different types of insulators to smoothly lead down the overhead bare conductor, and enough safe distance between downleads is ensured; and a cable terminal, a lightning arrester and a grounding box are integrated on one comprehensive platform so that maintenance operation is convenient. A construction overhaul ladder stand and a cable straightening device are installed on a side face of the cable terminal pole. According to the cable terminal pole, a structural form of a traditional cable terminal pole is optimally designed, the optimized structure is reasonable in spatial layout, materials are saved, land resource occupation is reduced, construction and maintenance convenience is greatly improved, and a guarantee is provided for safe and stable operation of a power transmission system.

Description

technical field [0001] The invention relates to the technical field of electric power transportation, in particular to a double-circuit power transmission line cable terminal pole. Background technique [0002] As the connection structure between high-voltage overhead lines and underground cables, cable terminal poles are the weak link in the transmission system, especially the down-leading method of overhead lines is directly related to the stable and safe operation of the entire transmission network. There are three installation positions of the cable terminal head: ground column, terminal rod head, and terminal rod platform, which correspond to three down-leading methods of high-voltage overhead lines. Among them, installing the cable terminal head on the ground column occupies too much land resources, and installing it at the terminal pole head causes great inconvenience to electric power maintenance. It is a more reasonable solution to set up a terminal pole platform fo...

AI Technical Summary

Problems solved by technology

[0003] However, the structure of the traditional platform-type cable terminal pole is relatively complex, occupying a large area, and there is a waste of resources. The double-platform mechanism and a large number of cross-arms not only increase the load of the pole tower, but also expand the uneven settlement of the pole tower pile foundation. risk, which brings certain challenges to the installation and construction of the terminal pole and the subsequent operation and maintenance work

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