Preparation method of compacted split conductor

A technique of splitting and compacting conductors, which is applied in cable/conductor manufacturing, electrical components, circuits, etc. It can solve problems such as low compaction coefficient and conductor flashing, and achieve reduced skin effect, uniform current, and small bursting pressure Effect

Active Publication Date: 2019-04-26
广州岭南电缆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing segmented conductor structure is mainly made of circular monofilament copper wires twisted into fan-shaped strand conductors. The fan-shaped strand conductors of this manufacturing method have disadvantages such as low compression coefficient or conductor flashing.

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preparation example Construction

[0027] The invention provides a method for preparing a compacted and divided conductor, comprising the following steps:

[0028] 1) Calculate the diameter according to the target cross-sectional area of ​​the fan-shaped strand conductor to be made, and formulate a layering scheme:

[0029] 160-200mm 2 The strand conductor is divided into inner and outer layers plus 2 outer layers; 200-300mm 2 The strand conductor is divided into inner core plus 3 outer layers; 300-400mm 2 The strand conductor is divided into inner core plus 4 outer layers; 400-500mm 2 The strand conductor is divided into inner core plus 5 outer layers;

[0030] The cross-sectional area of ​​each conductor layer is equal, the angle of the fan-shaped strand conductors from the outside to the inside decreases by 1-2°, and the angle of the outermost conductor is 72°;

[0031] 2) Use copper conductors that meet the national standard as raw materials, wire drawing and annealing, and press into fan-shaped stock c...

Embodiment 1

[0037] The cross-sectional area is 800mm 2 A method for preparing a compacted split conductor, comprising the steps of:

[0038] 1) Draw up a layering scheme: layering with the inner core plus 2 layers of cladding; the cross-sectional area of ​​the inner core is 160 / 3mm 2 ;The cross-sectional area of ​​the first outer layer is 160 / 3mm 2 ;The cross-sectional area of ​​the second outer layer is 160 / 3mm 2 ; The included angle of the inner core is 69°, the included angle of the first outer layer is 70°30′; the included angle of the second outer layer is 72°;

[0039] 2) Use copper conductors that meet the national standard as raw materials, wire drawing and annealing, and press into fan-shaped stock conductors as the core;

[0040] 3) hot-pressing the copper conductor after wire drawing and annealing in step 2) into a sheet, coating the inner core obtained in step 2), and pressing the outer layer tightly to obtain the first outer layer;

[0041] 4) hot-pressing the copper cond...

Embodiment 2

[0044] The cross-sectional area is 1200mm 2 A method for preparing a compacted split conductor, comprising the steps of:

[0045] 1) Draw up a layering scheme: layering in the way of core 1 plus 3 layers of cladding; the cross-sectional area of ​​core 1 is 60mm 2 ; The cross-sectional area of ​​the first outer layer 2 is 60mm 2 ; The cross-sectional area of ​​the second outer layer 3 is 60mm 2 ; The cross-sectional area of ​​the third outer layer 4 is 60mm 2 The included angle of the inner core 1 is 67°30′; the included angle of the first outer layer 2 is 69°, the included angle of the second outer layer 3 is 70°30′; the included angle of the third outer layer 4 is 72°;

[0046] 2) Use copper conductors conforming to national standards as raw materials, wire drawing and annealing, and press them into fan-shaped stock conductors as the core 1;

[0047] 3) hot-pressing the copper conductor after wire drawing and annealing in step 2) into a sheet, covering the inner core 1 ob...

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Abstract

The invention discloses a preparation method of a compacted split conductor. The preparation method comprises the following steps that 1, according to a target sectional area, a layering scheme is prepared; 2, an inner core is formed through wiredrawing, annealing and compaction; 3, a wiredrawn copper conductor is compressed into a slice, and then the inner core is coated with the slice as an external layer, coating is conducted in sequence, and fan-shaped strand conductors are obtained; 4, the five fan-shaped strand conductors are subjected to cabling to form the circular compacted split conductor, the compacted split conductor is wrapped with a semi-conductive tape, fixed and then wrapped with a PVC protecting belt. The preparation method of the compacted split conductor can effectivelyreduce the phenomena of flashes and corner burst of the compacted conductor, the compaction coefficient of the conductor can be improved, the outer diameter of the conductor can be effectively reduced, the outer layer of the compacted conductor and the inner core are high in axial stretching rate, and after cabling, the conductor is uniform in electrical conductivity.

Description

technical field [0001] The invention relates to the technical field of electric wires and cables, in particular to a large cross-section compacted split conductor and a manufacturing method thereof. Background technique [0002] With the rapid development of the national economy, the demand for electricity is increasing. The use of large cross-section conductors can effectively improve the transmission capacity of the line. After the cross-section of the conductor increases, the resistance per unit length of the conductor decreases. Within the limit of the heat capacity, the allowable carrying capacity will increase. , so as to increase its transmission power. [0003] However, the transmission capacity of the conductor does not increase linearly with the increase of the conductor cross-section. The conductor is affected by the "skin effect" and "proximity effect" in the process of transmitting alternating current. As the conductor cross-section increases, this phenomenon be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/02
CPCH01B13/0285
Inventor 黎照铭江福章邹蜜谭定彩
Owner 广州岭南电缆股份有限公司
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