T-joint steel pipe pole with special-shape crossarms

Abstract

The invention discloses a T-joint steel pipe pole with special-shape crossarms. The T-joint steel pipe pole comprises top crossarms, upper crossarms, middle crossarms, lower crossarms, T-joint poles, a pole tower body, crossarm insulators, wind-yaw-resistant insulators and movable crossarm hoops. The crossarms and the T-joint poles are mounted on the pole tower body and are spatially designed layer by layer to form certain included angles. The crossarm insulators and the wind-yaw-resistant insulators are mounted at ends of the crossarms. Two pairs of hoop lead crossarms are arranged above and below section points of upper lead crossarms and middle lead crossarms in the lateral direction of newly added T-joint poles respectively, and movement and angle adjustment of the T-joint poles are facilitated. The length and the rotation angles of the crossarms are calculated according to electrical distance gap of the T-joint tower. The problem that electrical safety distance is spatially insufficient for circuits during T-joint is solved by the newly added T-joint poles, and the T-joint steel pipe pole has the advantages of simplicity in mounting, excellent single-pole indicators, high economic efficiency of synthesis technique and the like, and is worthy of popularization and application in construction of high-voltage alternating-current two-circuit T-joint lines or long-term T-joint pole reservation.

Description

technical field [0001] The invention relates to a power transmission line pole, in particular to a T-connected steel pipe pole with special-shaped cross arm. Background technique [0002] With the rapid development of my country's electric power industry, in the construction and transformation of transmission lines, except for some transmission lines which are replaced by cables, most of the transmission lines are still in the form of overhead. The aerial transmission line is overhead through the transmission pole. The installation position of the conductor and the position of the conductor change under various weather conditions and stress conditions must meet the requirements of the electrical regulations, and the electrical safety distance between the phase conductors of the line is the transmission line. One of the tougher problems in engineering design. For example, the 110kV light industry transmission line needs to be T-connected to the Wenwu-Shangshu 110kV line, and...

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Problems solved by technology

[0003] The present invention mainly aims at the problem of insufficient electrical safety distance between the above-mentioned wires, and proposes an improvement on the application of the special-shaped arrangement of the cross-arm on the T-connected steel pipe pole, and designs the special-shaped cross-arm arranged on the T-connected steel pipe pole, aiming at solving the problem that the line is in the T-connection. The problem of insufficient crossing distance in space

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