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High voltage cable applied to power system

A technology for high-voltage cables and power systems, applied to power cables with shielding layers/conductive layers, insulated cables, cables, etc., to achieve the effects of easy mass production, low cable cost, and easy extrusion

Active Publication Date: 2015-11-18
陕西永光电力电缆制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a high-voltage cable, its core material is a high-voltage resistant material. Although a large number of applications are currently used, the applicant believes that there is still room for improvement.

Method used

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  • High voltage cable applied to power system
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  • High voltage cable applied to power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] please see figure 1 , a high-voltage cable for power systems, with a conductor 1 located in the center, a shielding layer 3 located outside the conductor, and a sheath layer 4 located outside the shielding layer; it is characterized in that there is a high-voltage resistant layer 2 between the conductor and the shielding layer , the high pressure resistant layer is made of the following raw materials in parts by weight:

[0082] High-density polyethylene: 50-70 parts;

[0083] Linear low-density polyethylene: 15 to 30 parts;

[0084]Dysprosium oxide: 1 to 3 parts;

[0085] Polytetrafluoroethylene: 5 to 10 parts;

[0086] Tricobalt tetroxide: 1 to 3 parts;

[0087] Magnesium hydroxide: 10-15 parts;

[0088] Antioxidant 1010: 3 to 5 parts;

[0089] Silicon dioxide: 10-20 parts;

[0090] Calcium zirconate: 5-8 parts;

[0091] Zirconium dioxide: 5-10 parts;

[0092] Barium zirconate: 5-8 parts;

[0093] Polyethylene wax: 6-8 parts;

[0094] Manganese dioxide: 1 t...

Embodiment 2

[0098] please see figure 2 , a high-voltage cable for power systems, has a conductor 1 located in the center, a shielding layer 3 located outside the conductor, and a sheath layer 4 located outside the shielding layer; it is characterized in that the shielding layer and the sheathing layer have a high-voltage resistant Layer 2, the high pressure resistant layer is made of the following raw materials in parts by weight:

[0099] High-density polyethylene: 50-70 parts;

[0100] Linear low-density polyethylene: 15 to 30 parts;

[0101] Dysprosium oxide: 1 to 3 parts;

[0102] Polytetrafluoroethylene: 5 to 10 parts;

[0103] Tricobalt tetroxide: 1 to 3 parts;

[0104] Magnesium hydroxide: 10-15 parts;

[0105] Antioxidant 1010: 3 to 5 parts;

[0106] Silicon dioxide: 10-20 parts;

[0107] Calcium zirconate: 5-8 parts;

[0108] Zirconium dioxide: 5-10 parts;

[0109] Barium zirconate: 5-8 parts;

[0110] Polyethylene wax: 6-8 parts;

[0111] Manganese dioxide: 1 to 3 pa...

Embodiment 3

[0115] please see image 3 , a high-voltage cable for power systems, has a conductor 1 located in the center, a shielding layer 3 located outside the conductor, an inner sheath 21 located outside the shielding layer, a first armored layer 22 located outside the inner sheath, and a first The sheath layer 4 outside the armor layer; it is characterized in that there is a high-voltage resistant layer 2 between the inner sheath and the first armor layer, and the high-voltage resistant layer is made of the following raw materials in parts by weight:

[0116] High-density polyethylene: 50-70 parts;

[0117] Linear low-density polyethylene: 15 to 30 parts;

[0118] Dysprosium oxide: 1 to 3 parts;

[0119] Polytetrafluoroethylene: 5 to 10 parts;

[0120] Tricobalt tetroxide: 1 to 3 parts;

[0121] Magnesium hydroxide: 10-15 parts;

[0122] Antioxidant 1010: 3 to 5 parts;

[0123] Silicon dioxide: 10-20 parts;

[0124] Calcium zirconate: 5-8 parts;

[0125] Zirconium dioxide: 5-...

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Abstract

The invention belongs to the technical field of power and cables, and particularly relates to a high voltage cable applied to a power system. The high voltage cable comprises a central conductor, a shield layer located outside the conductor, and a sheath layer located outside the shield layer. The high voltage cable is characterized in that a high voltage resistance layer is arranged between the conductor and the shield layer; and the high voltage resistance layer is made of high density polyethylene, linear low density polyethylene, dysprosium oxide, polytetrafluoroethylene, cobaltosic oxide, magnesium hydroxide, an antioxidant 1010, silicon dioxide, calcium zirconate, zirconium dioxide, barium zirconate, polyethylene wax, manganese dioxide, ferric oxide and carbon black. The high voltage cable provided by the invention has the advantages of high voltage resistance, stable high voltage operating performance, easy batch and scale production, easy extrusion, lower production cost and the like.

Description

technical field [0001] The invention belongs to the field of electric power and cable technology, and in particular relates to a high-voltage cable for a power system. Background technique [0002] High-voltage cables refer to cables with a transmission voltage of 10-35kV. Due to the high transmission voltage in high-voltage transmission, the current can be relatively low when transmitting the same power; due to the low current, the line loss will be greatly reduced (P=I×I×R ), the utilization rate of electric energy will be higher, therefore, high voltage transmission is widely used in power system. Not only that, because the current is reduced, the high-voltage transmission can reduce the cross-sectional area of ​​the conductor in the cable, so it can reduce the consumption of non-ferrous metals, and at the same time further reduce the cost of the cable and reduce the investment in power transmission and distribution facilities. As a high-voltage cable, its core material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02H01B7/17H01B7/40H01B7/22
CPCC08K2201/014C08L23/06C08L2203/202C08L2205/025C08L2205/035C08L2207/062H01B7/17H01B7/22H01B7/226H01B7/40H01B9/02C08L23/0815C08L27/18C08K13/02C08K3/36C08K3/24C08K2003/2244C08K3/04
Inventor 尹红
Owner 陕西永光电力电缆制造有限公司
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