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Water-blocking medium voltage aluminum alloy power cable

A power cable and aluminum alloy technology, which is applied in the direction of power cables, insulated cables, cables, etc. with shielding layer/conductive layer, to achieve the effects of excellent longitudinal water resistance, strong mechanical properties, and low cost

Inactive Publication Date: 2014-04-02
江苏南瑞淮胜电缆有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a water-blocking high-pressure aluminum alloy power cable for the defects of existing aluminum alloy cables, which has reasonable structure, light weight, low cost and strong mechanical properties

Method used

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  • Water-blocking medium voltage aluminum alloy power cable
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Embodiment Construction

[0014] Such as figure 1 As shown, the water-blocking high-voltage aluminum alloy power cable includes an insulated core and an outer cladding, at least one insulated core, and the insulated core is wrapped with an outer cladding to form a water-blocking high-pressure aluminum alloy power cable; its characteristics Yes: each insulated wire core includes an aluminum alloy conductor inner core 1, an inner shielding layer 2, an insulating layer 3, an outer shielding layer 4, a semiconducting resistance water belt 5, and a seamless metal sleeve 6 from the inside to the outside. The outer cladding is divided into wrapping layer 7, inner sheathing layer 8, armoring layer 9 and outer sheathing layer 10 from inside to outside.

[0015] Among them, the aluminum alloy conductor core 1 is made of aluminum alloy material with tensile strength ≥ 90Mpa, elongation at break ≥ 10%, and volume resistivity ≤ 0.028264Ω·m / mm2. When the aluminum alloy conductor core is twisted, the aluminum alloy s...

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Abstract

The invention discloses a water-blocking medium voltage aluminum alloy power cable which comprises an insulating cable core and an outer wrapping layer, wherein one or more insulating cable cores are provided; the insulating cable core is wrapped by the outer wrapping layer so as to form the water-blocking medium voltage aluminum alloy power cable. The cable is characterized in that each insulating cable core comprises an inner aluminum alloy conductor core (1), an inner shielding layer (2), an insulating layer (3), an outer shielding layer (4), a semiconductor resistor water-blocking zone (5) and a seamless metal sleeve (6) from inside to outside in sequence; the outer wrapping layer comprises a winding and wrapping layer (7), an inner protective layer (8), an armored layer (9) and an outer protective layer (10) from inside to outside The aluminum alloy power cable disclosed by the invention is made of an aluminum alloy material, the inner aluminum alloy conductor core is high in yield strength, small in resilience value, free of memory effect and easy to install, and compared with a copper core cable of the same mass, the cable is small in resistance, and the cost of the alloy material is smaller than that of copper.

Description

technical field [0001] The invention belongs to the technical field of electric wires and cables, and in particular relates to a water-blocking high-pressure aluminum alloy power cable. Background technique [0002] As the carrier of power transmission, power cables play an extremely important role in power transmission lines. Traditional medium voltage cables mainly use copper core power cables, but the cost of copper core power cables is high. At the same time, copper core cables have disadvantages such as low yield strength, high springback, memory effect, and heavy weight, which affect the laying of copper core cables. The country's copper resources are increasingly tense and on the verge of scarcity. Aluminum conductors are effective, light in weight, and low in price. Substituting aluminum for copper has become a development trend in the future. Ordinary aluminum core cables have poor mechanical properties and creep properties and are difficult to popularize on a larg...

Claims

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Application Information

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IPC IPC(8): H01B9/02H01B7/285
CPCY02A30/14
Inventor 杜丽饶阜城皇强王业峰
Owner 江苏南瑞淮胜电缆有限公司
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