CN202534378U

CN202534378U - Energy-saving hard aluminum expanded wire with aluminum alloy core

Info

Publication number: CN202534378U
Application number: CN2012201062069U
Authority: CN
Inventors: 叶胜平; 项建新; 鞠霖; 徐俊; 许竹凌
Original assignee: Wuxi Huaneng Electric Cable Co Ltd
Current assignee: Wuxi Huaneng Electric Cable Co Ltd
Priority date: 2012-03-20
Filing date: 2012-03-20
Publication date: 2012-11-14
Anticipated expiration: 2022-03-20

Abstract

The utility model relates to an energy-saving hard aluminum expanded wire with an aluminum alloy core and especially relates to an energy-saving hard aluminum expanded wire with an aluminum alloy core for the construction of a novel long-distance and large-span power transmission line and the reconstruction of an old power grid, which belongs to the technical field of power transmission. The energy-saving hard aluminum expanded wire with an aluminum alloy core comprises an energy-saving hard aluminum wire and an energy-saving aluminum alloy core. The energy-saving aluminum alloy core consists of an energy-saving aluminum alloy wire and a plurality of concentric stranded wires. The energy-saving hard aluminum wire consists of a plurality of uniformly-sized single wires surrounding the outside of the energy-saving aluminum alloy core in a circumferential shape along the radial direction of the energy-saving aluminum alloy core. A gap is reserved between every two single wires respectively. According to the utility model, the energy-saving aluminum alloy core is adopted as the core material of the wire, and the energy-saving hard aluminum expanded wire with an aluminum alloy core is formed by the energy-saving aluminum alloy core and multi-layer energy-saving hard aluminum wires concentrically stranded at the periphery of the aluminum alloy core. Compared with a conventional wire structure expanded wire, stranded wires are appropriately drawn to increase the diameter of the wire, so that the expanded wire is stable in structure. The equivalent radius of the wire is increased. Thus, the corona phenomenon is avoided and the inductive reactance of the wire is reduced.

Description

Energy-saving aluminium alloy core duralumin expanded conductor

Technical field

The utility model relates to a kind of energy-saving aluminium alloy core duralumin expanded conductor, particularly a kind of long distance, large span and new transmission line construction, and the energy-saving aluminium alloy core duralumin expanded conductor of old electric network reconstruction belongs to power transmission technology field.

Background technology

Along with the develop rapidly of national economy, China's power industry has had the progress of advancing by leaps and bounds, according to the strategic plan of " transferring electricity from the west to the east, north and south supplies mutually, national network "; At a distance, the construction of large capacity transmission circuit is imperative, also have higher requirement simultaneously, as the decision-making that improves transmission line capability to overhead power transmission conducting wire; Mainly solve from two approach; The one, improve transmission voltage, the 2nd, improve transmission current, under the certain prerequisite of voltage; Improve transmission current density, the transmission line capability that promptly improves the lead unit are is important with regard to the ten minutes that shows.At present, the employed lead of China's overhead transmission line still is traditional steel reinforced aluminium conductor basically and since its heat resistance relatively a little less than, so the transmission line capability of circuit receives certain restriction.

The effect of power construction in the national economic development is increasing, and the development of power industry is concerning overall people's exhibition of national economy.Along with this situation, a new step has been stepped up in the power construction of China, has also become the task of top priority and the research and development of pushing forward new technology and new product comprehensively substitute existing product.Aluminium alloy core aluminium stranded conductor line is littler than same specification ordinary steel core aluminum stranded wire resistance, transmission line capability is big, in light weight, intensity is high, based on these advantages, the use amount of aluminium alloy conductor increases year by year.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned weak point, and a kind of energy-saving aluminium alloy core duralumin expanded conductor is provided, and is mainly used in long distance, large span and new transmission line construction, old electric network reconstruction.

The technical scheme that provides according to the utility model; Energy-saving aluminium alloy core duralumin expanded conductor; Comprise energy-conservation hard-drawn aluminium wire and energy-saving aluminium alloy core; The energy-saving aluminium alloy core by an energy-saving aluminium alloy line and along the energy-saving aluminium alloy line radially, be circle-shaped be arranged in peripheral some with one heart strand constitute, energy-conservation hard-drawn aluminium wire is arranged in energy-saving aluminium alloy core outside and constitutes to being circle-shaped encirclement along the energy-saving aluminium alloy core diameter by some single lines of the same size;

Said energy-conservation hard-drawn aluminium wire is one deck, four layers at the most at least, and the single line adjacent layer strand of forming energy-conservation hard-drawn aluminium wire is on the contrary, and outermost layer twists to being dextrad; There is equal-sized space between the single line of the composition second layer and the 3rd layer of energy-conservation hard-drawn aluminium wire and the single line.

Said concentric strand is one deck, three layers at the most at least.

The utlity model has following advantage: the utility model has used the energy-saving aluminium alloy core as the lead core; Energy-saving aluminium alloy core duralumin expanded conductor is made up of with twisting with one heart at the peripheral multi-layer energy-saving hard-drawn aluminium wire of aluminium alloy core the energy-saving aluminium alloy core; Expanded conductor suitably extracts strand constitutes rock-steady structure with dilated diameter lead in the conventional wires structure; Increase the equivalent redius of lead, can prevent corona and the induction reactance that reduces circuit.

Description of drawings

Fig. 1 the utility model structural representation.

Embodiment

As shown in Figure 1; Energy-saving aluminium alloy core duralumin expanded conductor; Comprise energy-conservation hard-drawn aluminium wire 1 and energy-saving aluminium alloy core 2; Energy-saving aluminium alloy core 2 by an energy-saving aluminium alloy line and along the energy-saving aluminium alloy line radially, be circle-shaped be arranged in peripheral some with one heart strand constitute, energy-conservation hard-drawn aluminium wire 1 radially is circle-shaped encirclement by some single lines of the same size along energy-saving aluminium alloy core 2 and is arranged in energy-saving aluminium alloy core 2 outsides and constitutes;

Said energy-conservation hard-drawn aluminium wire 1 is one deck, four layers at the most at least, and the single line adjacent layer strand of forming energy-conservation hard-drawn aluminium wire 1 is on the contrary, and outermost layer twists to being dextrad; There is equal-sized space between the single line of the composition second layer and the 3rd layer of energy-conservation hard-drawn aluminium wire 1 and the single line.

Said concentric strand is one deck, three layers at the most at least.

Claims

1. energy-saving aluminium alloy core duralumin expanded conductor; It is characterized in that: comprise energy-conservation hard-drawn aluminium wire (1) and energy-saving aluminium alloy core (2); Energy-saving aluminium alloy core (2) by an energy-saving aluminium alloy line and along the energy-saving aluminium alloy line radially, be circle-shaped be arranged in peripheral some with one heart strand constitute, energy-conservation hard-drawn aluminium wire (1) radially is circle-shaped encirclement by some single lines of the same size along energy-saving aluminium alloy core (2) and is arranged in that energy-saving aluminium alloy core (2) is outside to be constituted;

Said energy-conservation hard-drawn aluminium wire (1) is one deck, four layers at the most at least, and the single line adjacent layer strand of forming energy-conservation hard-drawn aluminium wire (1) is on the contrary, and outermost layer twists to being dextrad; There is equal-sized space between the single line of the composition second layer and the 3rd layer of energy-conservation hard-drawn aluminium wire (1) and the single line.

2. energy-saving aluminium alloy core duralumin expanded conductor according to claim 1 is characterized in that: said concentric strand is one deck, three layers at the most at least.