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Insulation water retaining aerial cable and manufacture method thereof

An overhead cable, water blocking technology, applied in cable/conductor manufacturing, power cables with shielding/conducting layers, circuits, etc., can solve problems such as increased cable weight, wire breakage, corrosion stress, etc.

Inactive Publication Date: 2013-03-20
JING FENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The original insulated aluminum wires were not waterproof, because the branch joints were connected to the joints, and the insulated wires had openings. Although the joints were wrapped with insulating waterproof tape, water could still seep in through them. , chemically reacts with the conductor, and gradually corrodes to cause stress disconnection
In the prior art, the method of filling oil is also used to block water, but this method will increase the weight of the cable, and the pollution will be serious during processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An insulated water-blocking overhead cable, the cable includes a conductor, a shielding layer and an insulating layer, the conductor is an inner core composed of 8 aluminum alloy wires located in the center of the cable and 11 pure aluminum wires located on the outer layer of the inner core The outer core is composed of wires, water-blocking yarn is filled between the wires, the conductor is covered with an inner shielding layer, and the inner shielding layer is covered with an insulating layer.

Embodiment 2

[0021] An insulated water-blocking overhead cable, the cable includes a conductor, a shielding layer and an insulating layer, the conductor is an inner core composed of 12 aluminum alloy wires located in the center of the cable and 8 pure aluminum wires located on the outer layer of the inner core The outer core is composed of wires, water-blocking yarn is filled between the wires, the conductor is covered with an inner shielding layer, and the inner shielding layer is covered with an insulating layer.

Embodiment 3

[0023] An insulated water-blocking overhead cable, the cable includes a conductor, a shielding layer and an insulating layer, the conductor is an inner core composed of 10 aluminum alloy wires located in the center of the cable and 10 pure aluminum wires located on the outer layer of the inner core The outer core is composed of wires, water-blocking yarn is filled between the wires, the conductor is covered with an inner shielding layer, and the inner shielding layer is covered with an insulating layer.

[0024] A method for preparing the above-mentioned insulated water-blocking overhead cable, comprising the following steps:

[0025] a. Use 4 water-blocking yarns to wrap longitudinally around 1 aluminum alloy conductor and then twist to make the center conductor of the cable. The conductors are twisted and compressed together to make the inner core of the cable conductor; then 3 heels of water-blocking yarn are longitudinally wrapped around the twisted and compressed inner co...

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PUM

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Abstract

The invention provides an insulation water retaining aerial cable which comprises a conductor, a shielding layer and an insulation layer. The conductor is composed of an inner core portion formed by 8-12 aluminum alloy leads arranged in the center of a cable and an outer core portion formed by 8-11 pure aluminum leads arranged on the outer layer of the inner core portion. Water retaining yarn fills the space among the leads, an inner shielding layer is wrapped outside the conductor, the insulation layer is wrapped outside the inner shielding layer, the cable can prevent water corrosion completely, a good electric conducting performance is guaranteed, and the weight is not large. The invention further provides a manufacture method of the insulation water retaining aerial cable.

Description

technical field [0001] The invention relates to the field of overhead cables, in particular to an insulating and water-blocking overhead cable and a manufacturing method thereof. Background technique [0002] The original insulated aluminum wires were not waterproof, because the branch joints were connected to the joints, and the insulated wires had openings. Although the joints were wrapped with insulating waterproof tape, water could still seep in through them. , chemically reacts with the conductor, and gradually corrodes to cause stress disconnection. In the prior art, the method of filling oil is also used to block water, but this method will increase the weight of the cable, and the pollution will be serious during processing. [0003] Therefore, it is necessary to design an economically feasible waterproof cable and its preparation method, so that the cable is completely waterproof and erosion-proof, and can ensure good electrical conductivity, and the weight is not ...

Claims

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Application Information

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IPC IPC(8): H01B9/02H01B13/24H01B13/26
Inventor 许义彬
Owner JING FENG GRP
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