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Method for manufacturing power cables

A manufacturing method and technology of power cables, applied in the direction of cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of large loss and impact on the quality of cable products, and achieve the effect of scientific production technology

Inactive Publication Date: 2013-06-05
SHANGHAI PEOPLE ELECTRICAL APPLIANCE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process of power cables, the large-length continuous stacking and combination production method has a global and controllable impact on the production of power cables. Any problem in any link will have a serious impact on the quality of the entire cable product. The more quality defects If it happens in the inner layer, and the production is not found out in time, the greater the damage will be caused

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0023] Below in conjunction with specific embodiment the present invention is described in further detail:

[0024] The present invention is realized through the following steps:

[0025] 1. Drawing;

[0026] 2. Softening;

[0027] 3. Twisted wire tightly;

[0028] 4. Cross-linked three-layer co-extrusion;

[0029] 5. Three layers of copper tape wrapping;

[0030] 6. Cable formation;

[0031] 7. Squeeze the isolation sleeve;

[0032] 8. Armoring;

[0033] 9. Sheath extrusion printing or armored sheath spark inspection;

[0034] 10. Finished product inspection;

[0035] 11. Packaging;

[0036] Wherein in step 1: the copper rods of different specifications are processed by metal pressure, and the copper rods are forced to pass through the wire drawing die under the action of external force, the metal cross-sectional area is compressed, and the required cross-sectional area shape and size are obtained;

[0037] In step 2: Put the drawn wire core into a heating hot stand...

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Abstract

The invention relates to a method for manufacturing power cables. The method comprises the steps of wire drawing, softening, stranded wire pressing, cross-linking three-layer co-extrusion, copper strip three-layer wrapping, cabling, distance sleeve extrusion, sheath installation, sheath extruding and printing or installed sheath spark testing, finished product inspection and packaging. The method for manufacturing power cables has the advantages that produced power cables are ensured to be safe and reliable, and a production process is scientific and economic.

Description

technical field [0001] The invention relates to a power cable (35kV and below copper core, aluminum core polyvinyl chloride insulated power cable), in particular to a manufacturing method of the power cable. Background technique [0002] In the production process of power cables, the large-length continuous stacking and combination production method has a global and controllable impact on the production of power cables. Any problem in any link will have a serious impact on the quality of the entire cable product. The more quality defects If it happens in the inner layer, and the production is not stopped in time, the greater the damage will be caused. Because the production of wires and cables is different from assembled products, they can be disassembled, reinstalled and replaced. The quality problems of any part or process of wires and cables are almost irreparable and irreparable for this cable. They are all very negative, either sawing short or downgrading, or scrapping...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00
Inventor 毛天奏朱彬
Owner SHANGHAI PEOPLE ELECTRICAL APPLIANCE GROUP
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