High-voltage transmission power cable
A technology for power cables and high-voltage power transmission. It is applied to power cables, power cables with shielding/conductive layers, and insulated cables. It can solve the problems of users' power outages and circuit breakers, which are troublesome and difficult to find, and achieve safe and secure protection. Effect
Active Publication Date: 2015-03-25
HAIMEN THE XIUYU IND DESIGN CO LTD
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Problems solved by technology
Second, the existing single-core power cables have only one core. Once there is a power cable disconnection problem, it is difficult to find it. Because the disconnection problem is troublesome to find, it will cause power outages for large areas of users.
Method used
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Embodiment Construction
[0034] The invention will be described in further detail below in conjunction with the accompanying drawings.
[0035] refer to figure 1 , 2 , 3, high-voltage power transmission power cable, including a first core, a second core, a first insulating layer, a second insulating layer, a shielding layer, and a protective layer; the cross-section of the first core is circular, and the The cross-section of the second wire core is circular; the second wire core is arranged inside the first wire core; the first insulating layer is arranged between the first wire core and the second wire core; Insulating layer, shielding layer, protective layer; also includes first wire, second wire, third wire; the outer diameter of said first wire, second wire, third wire is tangent; said first wire The wire, the second wire, and the third wire are arranged in the protective layer; the first wire, the second wire, and the third wire are respectively parallel to the core; it also includes a first re...
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Abstract
The invention discloses a high-voltage transmission power cable. The high-voltage transmission power cable comprises a first cable core, a second cable core, a first insulating layer, a second insulating layer, a shielding layer and a protecting layer. The section of the first cable core is annular, and the section of the second cable core is round. The second cable core is arranged in the first cable core. The first insulating layer is arranged between the first cable core and the second cable core. The second insulating layer, the shielding layer and the protecting layer are sequentially arranged outside the second cable core from inside to outside. The high-voltage transmission power cable further comprises a first wire, a second wire and a third wire. The external diameters of the first wire, the second wire and the third wire are tangent in pairs. The first wire, the second wire and the third wire are arranged in the protecting layer and parallel to the cable cores respectively. By the adoption of the high-voltage transmission power cable, a theft place can be immediately known the moment a thief steals the protecting layer of the power cable.
Description
technical field [0001] The invention relates to a high-voltage power transmission power cable, which belongs to the technical field of high-voltage power transmission. Background technique [0002] With the rapid development of the national economy, the amount and scope of use of power cables as the main artery of the national economy are increasing. Power cables are cables used to transmit and distribute electrical energy. It is often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of power cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electric energy in the main line of the power system, including 1-500KV and above various voltage levels and various insulated power cables. [0003] The basic structure of a power cable consists of four part...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01B7/32H01B9/00H01B9/02G08B13/12
CPCG08B13/12H01B7/328H01B9/00H01B9/006H01B9/02
Inventor 谢明臣
Owner HAIMEN THE XIUYU IND DESIGN CO LTD