Power cable for high-voltage power transmission
A power cable and high-voltage power transmission technology, applied in power cables, power cables with shielding/conductive layers, insulated cables, etc., can solve the problems of thick power cables and low space utilization, and achieve high space utilization and protection. safe effect
Inactive Publication Date: 2016-06-01
谢明臣
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Problems solved by technology
Second, the space utilization rate between the cores of the existing power cables is very low, resulting in relatively thick power cables
Method used
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[0036] The invention will be described in further detail below in conjunction with the accompanying drawings.
[0037] refer to figure 1 , 2 , 3. High-voltage transmission power cable, including four cores; the cross-section of three cores just forms a ring; the cross-section of the other core is circular; the core with a circular cross-section is located in the other three cores Inside the cavity; the outside of the core with a circular cross-section is provided with an insulating layer and a shielding layer in sequence from the inside to the outside; the outer surfaces of the three cores whose cross-section just form a ring are all provided with an insulating layer; the cross-section just forms a ring The outside of the three wire cores is sequentially provided with a water-blocking layer and a protective layer from the inside to the outside; it also includes a first wire, a second wire, and a third wire; the outer diameters of the first wire, the second wire, and the third...
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Abstract
The invention discloses a power cable for high-voltage power transmission. The power cable comprises four cable cores, wherein the cross sections of three cable cores just form a circular ring; the cross section of the other one cable core is in a round shape; the cable core with the round cross section is positioned inside a cavity formed by the other three cable cores; an insulation layer and a shielding layer are sequentially arranged outside the cable core with the round cross section from inside to outside; the outer surface of each of the three cable cores of which the cross sections just form the circular ring is provided with an insulation layer; a water blocking layer and a protection layer are sequentially arranged outside each of the three cable cores of which the cross sections just form the circular ring from inside to outside; the power cable comprises a first conducting wire, a second conducting wire and a third conducting wire; the outer diameters of the first conducting wire, the second conducting wire and the third conducting wire are pairwise tangent; the first conducting wire, the second conducting wire and the third conducting wire are arranged in the protection layer; and each of the first conducting wire, the second conducting wire and the third conducting wire is parallel to the cable cores. The power cable has the advantage that the stealing place can be immediately known at the stealing moment of the protection layer of the power cable by a thief.
Description
[0001] This application is a divisional application of a patent application with an application date of December 10, 2014, an application number of 201410755810.8, and an invention title of "High Voltage Transmission Power Cable". technical field [0002] The invention relates to a high-voltage power transmission power cable, which belongs to the technical field of high-voltage power transmission. Background technique [0003] 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 an...
Claims
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IPC IPC(8): H01B7/32H01B9/00H01B9/02G08B13/12
CPCG08B13/12H01B7/328H01B9/00H01B9/02
Inventor 谢明臣
Owner 谢明臣