Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Conductor wire core for novel power cable

A technology for power cables and conductor cores, applied to power cables, conductors, non-insulated conductors, etc., can solve problems such as surface burrs, hidden dangers of accidents, uneven electric fields on the surface of conductor cores, etc., to reduce consumption, reduce labor, and unit Silk coordination deformation easy effect

Inactive Publication Date: 2012-04-04
HUNAN XIANGNENG ELECTRIC WORKS
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the conductor core that this kind of mode is produced still has the following deficiencies: 1, its filling coefficient of the conductor core that has been rolled or squeezed is at most 0.86, and the outer diameter is still too large, causing tens of millions of yuan of cable damage every year. The waste of layer materials, and the electric field on the surface of the conductor core rolled into a fan shape or tile shape is uneven, which may easily cause conductor breakdown; 2. After the round wire is pressed tightly, the surface layer may have burrs, and it is easy to break down under the condition of high voltage. Insulation, causing accident hazards; 3. Tightly stranded wire cores have high rigidity and large bending radius (15 times the cable diameter), making laying difficult

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Conductor wire core for novel power cable
  • Conductor wire core for novel power cable
  • Conductor wire core for novel power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0015] see figure 1 A preferred embodiment one of a new type of conductor wire core for power cables, in embodiment one, adopt the method described in the present invention to manufacture the nominal cross-sectional area is 120mm 2 The core of the copper cable conductor is 3 fan-shaped monofilaments in the middle part, and 2 layers of tile-shaped monofilaments are twisted in the outer layer. Add 4 more tile-shaped lines on the second outer layer. Among them, the section of fan-shaped wire monofilament in the middle molded wire part is 5.25mm 2 , Outer sector line 5.32mm 2 , sub-outer fan-shaped line 5.1mm 2 , The outer diameter of the entire conductor core is 12.61mm, which is 5.4% smaller than the outer diameter of the traditional compacted...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
areaaaaaaaaaaa
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a conductor wire core for a novel power cable, comprising an inner-layer molded wire and an outer-layer molded wire. The molded wires are produced by a molded wire filament drawing machine of which a molded wire filament drawing mold has the finish of less than 5; the single filaments of the inner-layer molded wire adopt round wires or combined round wires formed by combining 2 to 6 filaments with fan-shaped cross sections; the single filaments of the outer-layer molded wire are shaped like tiles and spirally stranded towards the same direction by using a frame-type strander; and the stranded wire core has a round cross section. The external diameter of the conductor wire core can be effectively reduced, and the consumption of outer-layer materials of the power cable can be saved. The conductor wire core has a smooth surface so that the risk of insulation breakdown is reduced. In addition, the rigidity and bend radius of the power cable are reduced so that the related power cable can be laid more conveniently.

Description

technical field [0001] The invention relates to the field of cable manufacturing, in particular to a novel conductor core for power cables. Background technique [0002] With the rapid development of the national economy, the demand for electric energy is increasing, and the proportion of power cables used for power transmission and distribution in power lines is also increasing rapidly. The wire and cable industry has become the second largest manufacturing industry, with annual sales more than 900 billion yuan. However, the traditional power cable products have backward technology, large quantity and low quality. Take the power cable as an example. Low-voltage power cables are composed of conductor cores, insulating layers, and sheath layers, while high-voltage power cable structures are composed of conductor cores, inner shielding layers, insulating layers, outer shielding layers, and sheath layers. The conductor cores of the first-generation power cables are stranded ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/08H01B9/00
Inventor 俞南平柳公器王先周曾红波黎阳
Owner HUNAN XIANGNENG ELECTRIC WORKS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products