Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of insulated aerial aluminum alloy cable and preparation method thereof

A technology of aluminum alloy and aluminum alloy monofilament, which is applied in the direction of insulated cables, cables/conductors, insulated conductors, etc., can solve the problems of increased renovation costs and changes, and achieves promotion of renovation, improvement of current carrying capacity, and excellent heat resistance. Effect

Active Publication Date: 2018-03-30
陕西永光电力电缆制造有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the specification of the cable is increased, it will inevitably result in the change of the line of the old line tower, which will increase the cost of the transformation

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
  • A kind of insulated aerial aluminum alloy cable and preparation method thereof
  • A kind of insulated aerial aluminum alloy cable and preparation method thereof
  • A kind of insulated aerial aluminum alloy cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] according to figure 1 As shown, the insulated aerial aluminum alloy cable of embodiment 1 of the present invention is illustrated, including an aluminum alloy cable core 1 and a shielding layer 2 and an insulating layer 3 extruded from the inside to the outside of the aluminum alloy cable core 1; Layer 2 is extruded with a silane cross-linked polyolefin semi-conductive material; the insulating layer 3 is extruded with a silane cross-linked polyethylene material; the aluminum alloy cable core 1 is made of 7-91 pieces of circular cross-section diameter It is a compact circular structure made of 3mm heat-resistant aluminum alloy monofilament 101 stranded.

[0038] Such as figure 1 As shown in the above, the preferred structure of the aluminum alloy cable core 1 is: the aluminum alloy monofilament 101 is arranged in 4 layers, including 1 inner layer aluminum alloy monofilament 11, 6 middle layer aluminum alloy monofilament 12, 12 times The outer layer aluminum alloy monofilame...

Embodiment 2

[0047] Compared with the structure of Example 1, the insulated overhead aluminum alloy cable of Example 2 is different in that the insulating layer is obtained after being extruded with a silane cross-linked polyethylene material and subjected to irradiation treatment. The other structure is the same as that of the insulated overhead aluminum alloy cable of Example 1.

[0048] Compared with the preparation method of Example 1, the preparation method of the insulated overhead aluminum alloy cable of this embodiment 2 differs in that the shielding layer of step 2 and the insulating layer of step 3 are separately extruded and formed by different cross-linking. Method for cross-linking; specifically: the cable with shielding layer after step two is extruded and formed by steam cross-linking. The steam cross-linking parameters are: temperature 110℃-120℃, pressure 0.2-0.4MPa conditions Next, steam cross-link for 3 hours; then, the cable after step 2 steam cross-linking is subjected to ...

Embodiment 3

[0050] Such as figure 2 with image 3 As shown, the insulated aerial aluminum alloy cable of this embodiment 3 is based on the insulated aerial aluminum alloy cable of embodiment 1 or 2, and the insulating layer 3 of the insulated aerial aluminum alloy cable also includes successively connected outer The shielding layer 4 and the outer insulating layer 5, and a plurality of polyurethane foam moldings 6; in a manner of being wound on the outer surface of the outer shielding layer 4, the plurality of polyurethane foam moldings 6 are embedded at intervals along the outer shielding layer 4 and the connection interface of the outer insulating layer 5. Wherein, the outer shielding layer is extruded with a silane cross-linked polyolefin semiconducting material; the outer insulation is obtained by extruding a silane cross-linked polyethylene material containing carbon black after being irradiated, wherein the carbon black The mass percentage content is 1.5%-1.8%. While enhancing the...

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
diameteraaaaaaaaaa
areaaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides an insulating aerial aluminum alloy cable and a preparation method thereof. The cable comprises an aluminum alloy cable core, and a shielding layer and an insulating layer which are formed outside the aluminum alloy cable core from inside to outside in turn through extrusion. The shielding layer is formed by silane crosslinked polyolefin semi-conductive material through extrusion. The insulating layer is formed by silane crosslinked polyethylene material through extrusion or obtained through extrusion formation of the silane crosslinked polyethylene material and then irradiation processing. The aluminum alloy cable core has a compressive circular structure manufactured by 7-91 single heat-resistant aluminum alloy wires through twisting, and the cross section of the wires is circular. According to the cable, carrying capacity for transmission is enabled to be higher than original carrying capacity and cross section efficiency is enhanced for 40%-60% without changing the existing cable specifications. Reconstruction of old lines of existing urban and rural power grids can be facilitated, and reconstruction cost can be greatly reduced and reconstruction cost can be saved.

Description

Technical field [0001] The invention relates to the technical field of insulated overhead cables, in particular to an insulated overhead aluminum alloy cable and a preparation method thereof. Background technique [0002] In order to reduce the investment cost of the power grid and the requirements of special environment (line crossing the jungle, etc.) in the original urban and rural power grids, insulated overhead cables are mostly used for medium and low voltage lines. With the rapid development of China's economy, the requirements of new rural construction and the increase in per capita power consumption, the original old lines cannot meet the existing needs, and the transformation of overhead lines is imperative. If the cable specification is increased, it will inevitably lead to changes in the lines of the old lines and towers, resulting in an increase in renovation costs. Summary of the invention [0003] In view of the above-mentioned defects and problems of the prior art...

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 Patents(China)
IPC IPC(8): H01B1/02H01B7/29H01B7/02H01B9/02H01B13/02H01B13/14
CPCH01B1/023H01B7/02H01B7/29H01B7/292H01B9/02H01B13/02H01B13/14
Inventor 路建卫
Owner 陕西永光电力电缆制造有限公司