Method for replacing 10kV multi-layered overhead line pole towers with steel pipe poles in situ

Abstract

A method for replacing 10kV multi-layered overhead line pole towers with steel pipe poles in situ includes the following specific steps: cement pole towers are erected nearby an old pole tower; the spans between the old pole tower and the front and the rear pole towers are released; power transmission lines on the old pole tower are transferred onto the cement pole towers; the old pole tower is dismantled, and a pole pit is dug at the position of the old pole tower; a steel pipe pole foundation with a flange is fabricated in the pole pit and dried until the steel pipe pole foundation hardens; a steel pipe pole is connected with and erected by the flange to erect, and the power transmission lines on the cement pole towers are transferred onto the steel pipe pole; the cement pole towers are dismantled, and the pavement is restored even. Since the cement pole towers are erected to serve as media for transferring the power transmission lines, the steel pipe pole can be erected in situ, and moreover, as the steel pipe pole foundation is waited to become hard, power still can be supplied. After completion, the position of the a steel tower is not changed, consequently, the route of the power transmission lines cannot be changed to affect the attractive appearance or the power transmission lines do not need to be re-paid off to cause economic loss, and moreover, the current condition of an urban street cannot be changed to bring about disputes.

Description

technical field [0001] The invention relates to a method for replacing the original steel pipe pole of a 10kV multi-layer overhead line pole tower. Background technique [0002] With the continuous development of economic construction, people's demand for electricity continues to expand, and the requirements for power supply reliability are also constantly increasing. In order to meet people's needs, old towers need to be replaced during power grid transformation. Due to the unbalanced concrete pole towers such as straight branch poles and other pole jacking forces, the guy wires need to be installed in the opposite direction of the pole jacking force, which affects the appearance of the city. Therefore, in the bustling areas of the city, the old cement poles are generally replaced with steel pipe poles that do not need to be installed with guy wires. The method of replacing the steel pipe pole is: excavate the pole pit in the horizontal line direction or along the line di...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of this method are: 1. If the pole tower is replaced in the direction of the horizontal line, the position of the pole tower will be changed, the path of the transmission line will change, which will affect the appearance, and after the path becomes longer, the length of the required wire will be insufficient, and the wire needs to be re-laid , causing economic loss

2. If the pole tower is replaced in the direction of the line, it is easy to change the status quo of the city streets, causing problems such as blocking the entrance of the store, and causing disputes with nearby residents

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