Novel wire and application thereof

Abstract

The invention provides a novel wire and an application thereof. The novel wire comprises a force-bearing core, one or more conductor coating layers and a conductor twisting layer from inside to outside in sequence; the fore-bearing core is a special-shaped force-bearing core or special-shaped force-bearing core group; the special-shaped force-bearing core consists of a base material and reinforcefibers and is noncircular; each conductor coating layer is an aluminum, aluminum alloy, copper or copper alloy coating layer; and the conductor twisting layer is an aluminum, aluminum alloy, copper orcopper alloy wire which is wound around the conductor coating layer. By virtue of special structure, design and processing method, the shortcoming of the existing carbon fiber wire can be solved.

Description

technical field [0001] The patent of the invention belongs to the technical field of electric wire and cable used in the field of power transmission and distribution, and specifically relates to a new type of wire and its application. technical background [0002] With the rapid development of my country's economy, the obvious acceleration of urban modernization, the continuous expansion of urban scale and the rapid development of new rural construction, the demand for electricity has grown rapidly. Moreover, due to the imbalance in energy distribution and the development of the east and west, it is urgent to solve the bottleneck problem of high-power, long-distance energy transmission. Although the construction of ultra-high voltage has partially alleviated this contradiction, due to the limitation of the carrying capacity of traditional steel-reinforced aluminum stranded wires, transmission lines have been unable to withstand the rapid expansion of transmission capacity, a...

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Problems solved by technology

Moreover, due to the imbalance of energy distribution and the development of the east and west, it is urgent to solve the bottleneck problem of high-power and long-distance energy transmission.

Although the construction of ultra-high voltage has partially alleviated this contradiction, due to the limitation of the carrying capacity of traditional steel-reinforced aluminum stranded wires, transmission lines have been unable to withstand the rapid expansion of transmission capacity, and power transmission has become a "bottleneck" for the development of the power industry.

[0003] ACSR common aluminum stranded wire has its disadvantages: it cannot operate at high temperature, which limits the capacity of the wire and the current carrying capacity is limited; the steel core is heavy, the coefficient of thermal expansion is large, and the thermal arc sag is large; High tower, high engineering cost

Its defect: the conductor core is made of glass fiber and carbon fiber composite materials, the modulus of the load-bearing core is much smaller than that of the steel core, forming a large ice area sag, large spans and large conductors due to their own weight, or due to ice, wind resistance Such loads form a large sag, which leads to the heightening of the tower or the increase of the tower, the reduction of the distance between the towers, and the increase of the project cost; the bearing core has insufficient pressure resistance, and it is easy to split and damage when the radial pressure is applied, requiring expensive Special fittings; when bending, the load-bearing core, especially the carbon fiber load-bearing core, is easy to break due to the remaining stress; the composite material is exposed to the environment, and the service life is greatly affected by the environment, especially the hydration and oxidation decomposition of the composite material core. severe damage to

Due to the extremely limited elongation and deformation of ceramic fibers, even if the ceramic fiber wires are multi-strand small round wires, similar to carbon fiber wires, they are still easy to damage and break when encountering sharp-angle bending, causing huge safety hazards

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