CN203552781U - A crosslinked polyethylene insulating waterproof power cable - Google Patents
A crosslinked polyethylene insulating waterproof power cable Download PDFInfo
- Publication number
- CN203552781U CN203552781U CN201320658751.3U CN201320658751U CN203552781U CN 203552781 U CN203552781 U CN 203552781U CN 201320658751 U CN201320658751 U CN 201320658751U CN 203552781 U CN203552781 U CN 203552781U
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- China
- Prior art keywords
- layer
- waterproof
- water
- cable
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920003020 cross-linked polyethylene Polymers 0.000 title abstract description 9
- 239000004703 cross-linked polyethylene Substances 0.000 title abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims abstract description 8
- -1 polyethylene Polymers 0.000 claims abstract description 8
- 229920000573 polyethylene Polymers 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 7
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 7
- 238000000137 annealing Methods 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000004132 cross linking Methods 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 240000005572 Syzygium cordatum Species 0.000 abstract description 3
- 235000006650 Syzygium cordatum Nutrition 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
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Abstract
The utility model discloses a crosslinked polyethylene insulating waterproof power cable and relates to a power cable. The crosslinked polyethylene insulating waterproof power cable comprises a cable core successively wrapped in a waterproof tape wrapping cabling layer, an aluminum-plastic composite tape waterproof layer, a polyethylene inner lining layer, a steel wire armored layer, a first waterproof tape wrapping layer, and a high-density polyethylene outer sheath layer. The cable core comprises three wire cores. Each wire core comprises a waterproof conductor formed by twisting multiple annealing bare copper wires and waterproof spun yarns. A conductor shielding layer, an insulating layer, and an insulation shielding layer are successively extruded on the outer side of each waterproof conductor in a three-layer co-extrusion manner. The insulation shielding layer of each wire core is successively wrapped in a semiconductive waterproof expansion tape layer, a cooper tape shielding layer, and a second waterproof tape wrapping layer. A waterproof rubber filling layer is arranged between the cable core and the waterproof tape wrapping cabling layer. The crosslinked polyethylene insulating waterproof power cable has excellent waterproof and water-tree-resistant performance and high electric performance, and has advantages of enhancing the power supply stability and security of a power grid line, prolonging the service life of the cable, and decreasing power supply cost.
Description
Technical field
The utility model relates to a kind of power cable, is specifically related to a kind of crosslinking polyethylene insulation water-proof power cable.
Background technology
The application history of existing thirties years of domestic crosslinked polyethylene (XLPE) insulated power cable, because of its good electric and mechanical and physical performance, and have that production technology is simple, structure is light, transmission capacity is large, mounting and installation and maintaining convenient, be not subject to the advantages such as drop restriction, in electric power system, be widely used.
Along with people are to cable insulation water suction and the research of water tree and the intensification of understanding, people more and more recognize the importance of water resistance to power cable with cross-linked polyethylene insulation, according to statistics, in domestic electrical network 10-35 kV electric power systems, direct buried XLPE insulated cable there is no employing stop water, generally in operation, after 8～12 years, grow large water gaging tree, breakdown accident occurs, have a strong impact on the safe operation of electrical network.Therefore, the cable technology that blocks water all had very important significance for the reliability and the life-span that guarantee XLPE cable.In level of ground water higher or long-term area of heavy rainfull (such as areas to the south, China the Changjiang river), increasing user has proposed the requirement blocking water to cable.
Utility model content
The utility model is the deficiency in order to overcome common cable, and a kind of crosslinking polyethylene insulation water-proof power cable that can meet client's needs is provided.
The utility model comprises cable core, in described cable core outside, sets gradually the wrapped stranding layer of waterstop, aluminium-plastic tape water blocking layer, polyethylene liner layer, wire armoring layer, the first waterstop lapping layer and high density polyethylene (HDPE) external sheath layer; Described cable core comprises compenzine core, and per share core comprises respectively by many annealing bare copper wires and the stranded water-blocking conductors that form of spun yarn that block water, in described per share water-blocking conductor outside respectively through three-layer co-extruded conductor shield, insulating barrier, the insulation screen of extruding successively; In the insulation screen outside of described per share core, be also provided with successively respectively semiconductive block water expansion belt, copper strip shielding layer and the second waterstop lapping layer; The rubber filling layer that blocks water is set between described cable core and the wrapped stranding layer of waterstop.
The utility model water-blocking conductor adopts to press and pulls out technique, and the coefficient that presses of conductor is reached more than 0.94, and block-water effect is good; Adopt three-layer co-extruded technology and longitudinal radial water-resisting technology, structure innovation, material novelty, make cable there is excellent blocking water and water tree resistant property, high electrical performance, improve stability and the fail safe of power network line power supply, extended cable useful life, reduced power supply cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises cable core 1, in cable core outside, sets gradually the wrapped stranding layer 2 of waterstop, aluminium-plastic tape water blocking layer 3, polyethylene liner layer 4, wire armoring layer 5, the first waterstop lapping layer 6 and high density polyethylene (HDPE) external sheath layer 7; Cable core 1 comprises compenzine core 1-1, per share core 1-1 comprises respectively by many annealing bare copper wires and the stranded water-blocking conductors that form 8 of spun yarn that block water, in per share water-blocking conductor 8 outsides respectively through three-layer co-extruded conductor shield 9, insulating barrier 10, the insulation screen 11 of extruding successively; In insulation screen 11 outsides of per share core 1-1, be also provided with successively respectively semiconductive block water expansion belt 12, copper strip shielding layer 13 and the second waterstop lapping layer 14; The rubber filling layer 15 that blocks water is set between cable core 1 and the wrapped stranding layer 2 of waterstop.
Claims (1)
1. crosslinking polyethylene insulation water-proof power cable, it is characterized in that: comprise cable core, in described cable core outside, set gradually the wrapped stranding layer of waterstop, aluminium-plastic tape water blocking layer, polyethylene liner layer, wire armoring layer, the first waterstop lapping layer and high density polyethylene (HDPE) external sheath layer; Described cable core comprises compenzine core, and per share core comprises respectively by many annealing bare copper wires and the stranded water-blocking conductors that form of spun yarn that block water, in described per share water-blocking conductor outside respectively through three-layer co-extruded conductor shield, insulating barrier, the insulation screen of extruding successively; In the insulation screen outside of described per share core, be also provided with successively respectively semiconductive block water expansion belt, copper strip shielding layer and the second waterstop lapping layer; The rubber filling layer that blocks water is set between described cable core and the wrapped stranding layer of waterstop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658751.3U CN203552781U (en) | 2013-10-24 | 2013-10-24 | A crosslinked polyethylene insulating waterproof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658751.3U CN203552781U (en) | 2013-10-24 | 2013-10-24 | A crosslinked polyethylene insulating waterproof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552781U true CN203552781U (en) | 2014-04-16 |
Family
ID=50470862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320658751.3U Expired - Lifetime CN203552781U (en) | 2013-10-24 | 2013-10-24 | A crosslinked polyethylene insulating waterproof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552781U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637623A (en) * | 2015-02-03 | 2015-05-20 | 内蒙古仁达特种电缆有限公司 | Watertight power cable and processing technology thereof |
| CN107017053A (en) * | 2017-05-27 | 2017-08-04 | 特变电工(德阳)电缆股份有限公司 | A kind of watertightness anti-corrosion power cable and its manufacture method |
| WO2021031684A1 (en) * | 2019-08-21 | 2021-02-25 | 中天科技海缆股份有限公司 | Power cable |
-
2013
- 2013-10-24 CN CN201320658751.3U patent/CN203552781U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637623A (en) * | 2015-02-03 | 2015-05-20 | 内蒙古仁达特种电缆有限公司 | Watertight power cable and processing technology thereof |
| CN107017053A (en) * | 2017-05-27 | 2017-08-04 | 特变电工(德阳)电缆股份有限公司 | A kind of watertightness anti-corrosion power cable and its manufacture method |
| CN107017053B (en) * | 2017-05-27 | 2023-04-25 | 特变电工(德阳)电缆股份有限公司 | Water-tightness anti-corrosion power cable and manufacturing method thereof |
| WO2021031684A1 (en) * | 2019-08-21 | 2021-02-25 | 中天科技海缆股份有限公司 | Power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |