Double-layer conductor separable double-layer insulator wire and processing method thereof

Abstract

The invention discloses a double-layer conductor separable double-layer insulator wire and a processing method. The double-layer conductor separable double-layer insulator wire comprises a wire, a main conductor, an outer-layer conductor, an inner insulation sleeve and an outer insulation sleeve, wherein the conductor is composed of an inner layer and an outer layer, the outer-layer conductor is wrapped on the periphery of the inner-layer conductor, the inner insulation sleeve is sleeved on the outer-layer conductor, the periphery of the inner insulation sleeve is sleeved with a middle insulation sleeve, and the periphery of the middle insulation sleeve is sleeved with an outer insulation sleeve. According to the insulator wire, conductivity of the hard copper wire can be improved, introduction of harmful impurities is strictly controlled in the process, boronizing, refining and titanizing treatment is carried out in production, then treatment processes such as crystallization, rolling, drawing and recovery are carried out, the hard copper wire with the conductivity larger than or equal to 63% IACS can be manufactured, the strength is larger than or equal to 160 Mpa, and technical requirements of the hard copper wire for an overhead conductor can be met; through the processing method of the double-layer conductor and the separated double-layer insulator, the electric wire has high current-carrying capacity, low resistance and high safety, and a traditional construction process can be adopted; when the insulator wire is used in line operation, line loss can be reduced, and construction cost is saved.

Description

technical field [0001] The invention belongs to the technical field of wires, and in particular relates to a wire with a double-layer conductor and a separable double-layer insulator and a processing method. Background technique [0002] "Energy saving and emission reduction" is also a policy guideline for the long-term development of national industries. At the same time, the State Grid Corporation also proposed to build a new type of smart grid that is "resource-saving, environment-friendly, new technology, new material, and new process". At present, the commonly used transmission wires for overhead transmission lines are ordinary steel-cored aluminum stranded wires, and the copper wires used for ordinary steel-cored aluminum stranded wires are hard copper wires with a conductivity of 61% IACS, and the general resistivity is 0.02790~0.028264Ω·mm2 / m, while the overhead conductors mainly rely on copper wires to transmit current. If the conductivity of the copper wires can ...

AI Technical Summary

Problems solved by technology

Although the steel core annealed aluminum wire conductor improves the conductivity of the aluminum wire, the strength and hardness of the aluminum wire decrease, resulting in difficulty in construction and deployment, and at the same time, the safety performance is reduced

After the strength and hardness of the aluminum wire are reduced, the surface of the wire is easily scratched during construction, resulting in noise in line operation, enhanced electromagnetic interference, and reduced anti-corona ability, making its environmental protection performance and energy-saving effect unsatisfactory.

At the same time, during the display, there will be floating lines (lifting lanterns) and jumping strands due to the extension of the single line, which will affect the overall performance of the conductor.

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