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High pressure cross-linked polyethylene insulated power cable

A cross-linked polyethylene and power cable technology, applied in the direction of power cables with shielding layer/conductive layer, etc., can solve the problems of single variety, many manufacturers, poor economic benefits, etc., and achieve excellent electrical performance, enhanced shielding effect, under pressure effect

Active Publication Date: 2013-05-08
GUANGZHOU NANYANG CABLE
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AI Technical Summary

Problems solved by technology

[0002] At present, there are a large number of enterprises above designated size in my country's wire and cable industry, but the industry concentration is low and the ability of independent innovation is weak
At present, there are only two types of high-voltage (such as 132kV) XLPE insulated power cables produced in China: aluminum sheath and lead sheath, but these two types of power cables are also insufficient in mechanical strength and pressure range. It is not convenient to lay, and it is limited by the performance of the material, and the electrical performance of the cable is insufficient; therefore, the existing high-voltage XLPE insulated power cables have a single variety, many manufacturers, and fierce market competition, which cannot meet the needs of higher market development. , poor economic efficiency

Method used

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Embodiment Construction

[0016] Such as figure 1 Shown is a schematic longitudinal section of the high-voltage cross-linked polyethylene insulated power cable of the present invention; it can be seen that the high-voltage cross-linked polyethylene insulated power cable includes: an insulated core and an insulated core wrapped outward in sequence Arranged semi-conductive buffer water blocking tape 6, corrugated copper sheath layer 7, high-density polyethylene outer sheath 8, graphite coating 9 is arranged on the outermost layer. In one embodiment, except for the corrugated copper sheath layer 7 , the cross-sections of the other layers are all concentric circles.

[0017] Wherein, the insulated wire core includes a conductor 1 at the center, and a semi-conductive nylon tape 2 , a conductor shielding layer 3 , a cross-linked polyethylene insulating layer 4 and an insulating shielding layer 5 that are arranged in sequence outside the conductor 1 .

[0018] Among them, the conductor adopts a compact round...

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Abstract

The invention provides a high pressure cross-linked polyethylene insulated power cable. The high pressure cross-linked polyethylene insulated power cable comprises an insulated core of cable, a semiconductive buffering water-blocking tape, a wrinkle copper jacket layer and a high density polyethylene outer sheath. The power cable has the advantages of high in mechanical strength, good in behavior of electricity and the like.

Description

technical field [0001] The invention relates to a power cable, in particular to a high-voltage XLPE insulated power cable. Background technique [0002] At present, my country's wire and cable industry has a large number of enterprises above designated size, but the industry concentration is low and the ability of independent innovation is weak. At present, there are only two types of high-voltage (such as 132kV) XLPE insulated power cables produced in China: aluminum sheath and lead sheath, but these two types of power cables are also insufficient in mechanical strength and pressure-bearing range. It is not convenient to lay, and it is limited by the performance of the material, and the electrical performance of the cable is insufficient; therefore, the existing high-voltage XLPE insulated power cables have a single variety, many manufacturers, and fierce market competition, which cannot meet the needs of higher market development. , poor economic efficiency. Contents of...

Claims

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Application Information

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IPC IPC(8): H01B9/02
Inventor 郑汉武章先杰刘晓东王志辉郭党庆唐文川崔旭光张新法
Owner GUANGZHOU NANYANG CABLE
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