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A high conductivity aluminum alloy cable

A high conductivity, aluminum alloy technology, applied in the direction of insulated cables, metal/alloy conductors, cables, etc., can solve the problems of increasing two specifications, hidden dangers of cable safety, etc., to achieve improved ductility, convenient installation and maintenance, and high The effect of conductivity

Inactive Publication Date: 2017-09-05
SHANGHAI XINYI ELECTRICAL CIRCUIT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

at 120mm 2 and 185mm 2 The comparison between copper and aluminum conductors can be known, 120mm 2 The DC resistance value of the copper conductor at 20°C is required to be a maximum of 0.153Ω / km, and after adding two specifications, it is 185mm 2 The DC resistance value of the aluminum alloy conductor at 20°C is required to be a maximum of 0.164Ω / km. From these two data, it can be seen that replacing copper with aluminum cannot simply increase the two specifications as the standard, otherwise it will bury the safety of the cable. Hidden danger

Method used

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  • A high conductivity aluminum alloy cable

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Effect test

Embodiment 1

[0029] A high conductivity aluminum alloy cable, its structure is as follows figure 1 As shown, the cable includes a sheath layer 6, an armor layer 5, and a tape layer 4 arranged sequentially from outside to inside, and three aluminum alloy conductors 1 wrapped with an insulating layer 2 are arranged in the tape layer 4, and the insulating layer 2 The outer space is filled with a filler 3. The aluminum alloy conductor 1 used in this embodiment is an IACS aluminum alloy conductor with a conductivity of 61%. The raw materials use the following components and weight percentages: silicon 0.08, iron 0.4, copper 0.2, boron 0001 , Rare earth 0.05, the balance is aluminum.

[0030] The aluminum alloy conductor is refined by the following method: adding copper, iron and rare earth as an alloy in the melting furnace to improve the conductivity and creep resistance of the aluminum alloy conductor, and then adding other components, the annealing temperature of the stranded conductor is ac...

Embodiment 2

[0032] A high-conductivity aluminum alloy cable, the cable includes a sheath layer, an armor layer, and a tape layer arranged sequentially from outside to inside, and an aluminum alloy conductor wrapped with an insulating layer is arranged in the tape layer, and an aluminum alloy conductor outside the insulating layer The spaces are filled with fillers and the aluminum alloy conductors are 61% IACS aluminum alloy conductors.

[0033] The raw material of the aluminum alloy conductor adopts the following components and weight percentage content: 0.08 silicon, 1 iron, 0.5 copper, 001 boron, 0.05 rare earth, and the balance is aluminum. Refined by the following method: Add copper, iron and rare earth as alloys in the melting furnace to improve the conductivity and creep resistance of aluminum alloy conductors, and then add other components. The annealing temperature of stranded conductors depends on the size of the specifications. The annealing temperature is selected between 300°...

Embodiment 3

[0035] A high-conductivity aluminum alloy cable, the cable includes a sheath layer, an armor layer, and a tape layer arranged sequentially from outside to inside, and an aluminum alloy conductor wrapped with an insulating layer is arranged in the tape layer, and an aluminum alloy conductor outside the insulating layer The space is filled with a filler, and the aluminum alloy conductor is an IACS aluminum alloy conductor with a conductivity of 62%.

[0036] The raw material of the aluminum alloy conductor adopts the following components and weight percentages: silicon 0.08, iron 1.5, copper 0.8, boron 0.03, rare earth 0.1, and the balance is aluminum. Refined by the following method: Add copper, iron and rare earth as alloys in the melting furnace to improve the conductivity and creep resistance of aluminum alloy conductors, and then add other components. The annealing temperature of stranded conductors depends on the size of the specifications. The annealing temperature is sel...

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Abstract

The invention relates to a high-conductivity aluminum alloy cable, which comprises a sheath layer, an armor layer, and a tape layer sequentially arranged from the outside to the inside, and an aluminum alloy conductor wrapped with an insulating layer is arranged in the tape layer, and the outer layer of the insulating layer is The space is filled with a filler, and the aluminum alloy conductor is an IACS aluminum alloy conductor with a conductivity of 61%‑62%. Compared with the prior art, the invention not only achieves the electric conductivity of the annealed copper conductor, but also improves the ductility, corrosion resistance, tensile strength and fatigue resistance of the conductor.

Description

technical field [0001] The invention relates to a cable, in particular to a high-conductivity aluminum alloy cable. Background technique [0002] According to the technical information provided by aluminum alloy cable manufacturers, compared with copper cables, aluminum alloy cables generally have the following advantages: [0003] 1. Bending performance: According to the provisions of GB / T12706 on the bending radius of copper cables during installation, the bending radius of copper cables is 10 to 20 times the cable diameter, and the bending radius of aluminum alloy cables is at least 7 times the cable diameter. Aluminum alloy cables are used The space for the installation layout is reduced, the installation cost is reduced, and it is easier to lay. [0004] 2. Ductility: The elongation rate of aluminum alloy cables after annealing treatment can reach or exceed 30%, which is higher than the 25% standard of copper cables. [0005] 3. Resilience: The resiliency of aluminum ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/02H01B7/00H01B7/17
Inventor 冯广智田洪雨
Owner SHANGHAI XINYI ELECTRICAL CIRCUIT EQUIP