Device for testing comprehensive performance of round wire concentric lay overhead electrical stranded conductor

Abstract

A device for testing comprehensive performance of a round wire concentric lay overhead electrical stranded conductor comprises a horizontal tension tester and a conductor direct-current resistance test device, wherein the horizontal tension tester comprises a main machine, a truss frame, a crossbeam and a jaw joint; guide rails are arranged on one side of the truss frame; the crossbeam is fixed to the truss frame and perpendicular to the guide rails; the jaw joint comprises a crossbeam jaw joint and a near-end jaw joint; the crossbeam jaw joint is fixed to the middle part of the crossbeam; the near-end jaw joint is fixedly connected to a piston of the main machine; the conductor direct-current resistance test device comprises a bridge main machine and two bridge testing arms; conductor clips are arranged at one ends of the bridge testing arms, and U-shaped sliding blocks are arranged at the other ends of the bridge testing arms; electrodes for being connected to the bridge main machine are arranged in the conductor clips; the two bridge testing arms are arranged on the truss frame through slide fit between the U-shaped sliding blocks and the guide rails. According to the method, the measurement of direct current conductivity and mechanical performance of the overhead conductor can be realized through once sampling, so that not only are wires saved, but also a testing result can be more accurate.

Description

technical field [0001] The invention belongs to the technical field of comprehensive performance testing of round wire concentric stranded overhead conductors, and in particular relates to the comprehensive performance detection of the mechanical properties and DC resistivity of round wire concentric stranded overhead conductors. Background technique [0002] Since the round concentric stranded aerial conductor needs to be laid overhead, if the rated tensile strength of the overhead conductor is unqualified, it is easy to cause a disconnection accident. In addition, a DC resistivity that exceeds the standard will result in higher operating temperatures and increased line losses. Therefore, the mechanical properties and the DC resistivity are the two most important indicators of the round concentric stranded overhead conductor. The traditional detection method is to use separate tests for detection. The DC resistivity test needs to intercept wires with a length of about 1.5m...

AI Technical Summary

Problems solved by technology

Carrying out the two tests separately not only has low efficiency and poor precision, but also wastes wires

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