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Scandium-contained aluminum-alloy-conductor water-blocking low-voltage power cable

A scandium-aluminum alloy and low-voltage power technology is applied in the field of scandium-aluminum alloy conductor water-blocking low-voltage power cables to achieve the effects of cost reduction, improved electrical conductivity and water-blocking performance, and good flame-retardant and waterproof effects.

Active Publication Date: 2016-07-13
ANHUI LINGYU CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So so far there is no 0.6 / 1kV power cable with low price and excellent performance and water resistance.

Method used

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  • Scandium-contained aluminum-alloy-conductor water-blocking low-voltage power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A scandium-aluminum alloy conductor water-blocking low-voltage power cable, the cable core includes three power cores 1 and one ground core 2; the power core is composed of a power core conductor wrapped with a polyethylene insulating layer; the power core The conductor is a scandium-aluminum alloy conductor; the ground core is composed of a polyethylene insulation layer wrapped around the ground core conductor, and the ground core conductor is a scandium-aluminum alloy conductor; , aluminum-plastic tape longitudinal cladding 5, PVC inner sheath 6, galvanized steel tape armor layer 7 and PVC outer sheath 8; water-blocking filler strips are filled between the wire core and the water-blocking tape wrapping layer 3.

Embodiment 2

[0028] The difference between this embodiment and Embodiment 1 is that the core of the cable contains three power cores, one ground core and one center core 9, the center core is composed of a center core conductor wrapped with a polyethylene insulating layer, and the center line The core conductor is a scandium-aluminum alloy conductor; the others are the same.

Embodiment 3

[0030] The production method of scandium aluminum alloy conductor is as follows:

[0031] Put the aluminum ingot into the shaft furnace, melt it at 750-770 ℃, flow into the holding furnace, add iron, cerium-rich rare earth and scandium for smelting; after stirring evenly, refine, purify, degas and slag the melt. The alloy melt not lower than 750°C is sent to the aluminum rod continuous casting and rolling unit for casting and rolling, wherein the temperature of the casting billet is 650°C, and the aluminum alloy rod with high scandium content of 300°C and Φ10mm is obtained; The aluminum alloy rod is placed in a heat treatment furnace at 280-290°C for 3-5 hours to relieve stress and cooled naturally; then it is drawn on an aluminum alloy wire drawing machine, and the lubrication temperature is controlled to be ≤100°C. -05 (2011) 8000 series aluminum alloy wires for electrical annealing and tempering at medium temperature, standard aluminum alloy single wire with high scandium c...

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Abstract

The invention discloses a scandium-contained aluminum-alloy-conductor water-blocking low-voltage power cable. A wire core of the cable contains at least three power wire cores. A water-blocking tape wrapping layer, an aluminum plastic tape longitudinal wrapping layer, a polyvinyl chloride inner sheath, a galvanized steel tape armor layer and a polyvinyl chloride outer sheath are successively arranged outside the wire core. Each power wire core is formed by wrapping a polyethylene insulating layer outside a power wire core conductor. The power wire core conductor adopts a scandium-contained aluminum alloy conductor. A water blocking filling strip is filled between the wire core and the water-blocking tape wrapping layer. In the invention, the power wire core conductor adopts the scandium-contained aluminum alloy conductor; on one hand, many disadvantages caused because pure aluminum is served as a wire and cable conductor are solved, and the cable possesses advantages of creep resistance, high flexibility, high extension, low rebound, stable connection, good water blocking performance and the like; on the other hand, cost of the cable is reduced by 50%.

Description

technical field [0001] The invention relates to a water-blocking low-voltage power cable with a scandium-aluminum alloy conductor, which belongs to the field of electric wires and cables. Background technique [0002] With the continuous development of my country's industry, my country has entered the era of electrification in an all-round way, and the use of power cables is also increasing. The main component of the conductor for manufacturing cables is copper, accounting for about 70% of the total amount of copper used. However, my country's copper resources are very short. With the depletion of China's copper mine resources, 80% of China's copper mines need to be imported, which is highly dependent. With the rising price of copper, replacing copper with aluminum is an inevitable trend in the development of wire and cable. More than 80% of the wires and cables in France are aluminum conductors, and the aluminum conductors in Japan also account for more than 50%. my count...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B7/288H01B7/282H01B7/295H01B7/02H01B1/02H01B3/44H01B13/00
CPCH01B1/023H01B3/44H01B3/443H01B7/02H01B7/282H01B7/2825H01B7/288H01B7/295H01B9/00H01B13/00
Inventor 李万松
Owner ANHUI LINGYU CABLE TECH
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