CN104167248A - Environment-friendly water-tree-resistant waterproof medium-voltage power cable - Google Patents
Environment-friendly water-tree-resistant waterproof medium-voltage power cable Download PDFInfo
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- CN104167248A CN104167248A CN201410457178.9A CN201410457178A CN104167248A CN 104167248 A CN104167248 A CN 104167248A CN 201410457178 A CN201410457178 A CN 201410457178A CN 104167248 A CN104167248 A CN 104167248A
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Abstract
The invention discloses an environment-friendly water-tree-resistant waterproof medium-voltage power cable. The environment-friendly water-tree-resistant waterproof medium-voltage power cable is characterized by sequentially comprising waterproof conductors, conductor shielding layers, water-tree-resistant crosslinked polyethylene insulating layers, insulating shielding layers, first semiconductive waterproof tape taped coverings, metal shielding layers, first semiconductive waterproof tape taped coverings, inner split-phase jackets, a filling layer, an insulating waterproof wrapping tape layer and an outer protective jacket from inside to outside. According to the environment-friendly water-tree-resistant waterproof medium-voltage power cable, the waterproof conductors are adopted, water-tree-resistant crosslinked polyethylene insulation is adopted for the insulating layer, and water trees generated after water enters the power cable are prevented. The environment-friendly water-tree-resistant waterproof medium-voltage power cable has the excellent radial and longitudinal waterproof performance which is mainly represented through the waterproof conductors, the water-tree-resistant crosslinked polyethylene insulation, waterproof wrapping tape and the high-density polyethylene jacket, the defect that a common power cable can not adapt to the wet laying environment with more water is overcome, and influences and hazards generated after the water or steam enters the cable are avoided.
Description
Technical field
The present invention relates to a kind of environment-friendly type water resistant and set the medium-pressure power cable that blocks water, relate in particular to the environment-friendly type water resistant that a kind of anti-water permeation performance is strong and set the medium-pressure power cable that blocks water.
Background technology
At present, the many employings of medium-pressure power cable are crosslinked polyetylene insulated, common cross-linked polyethylene insulated cable is damaged by mechanical stress or external force laying with run duration, or cable long-time running under environment moist, that have water, capital causes extraneous moisture to cable internal penetration, the chance that forms water tree under electric field action increases greatly, and water tree transforms into permanent electric branch under electric field action, causes in the short period of time insulation breakdown.Once outer jacket cable is destroyed, after cable water inlet, can cause steel band, copper strip corrosion, decreasing insulating, shortens cable useful life greatly.In addition, current domestic water-resistant power cable mostly is plumbous cover power cable, although plumbous cover power cable sealing is better, plumbous cover density is large, causes cable body mass penalty, and bending property is bad, and electric cable transporting is inconvenient, and lead is heavy metal, and environment is had to harm.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of environment-friendly type water resistant and sets the medium-pressure power cable that blocks water, and has the advantages that anti-water permeation performance is strong.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of environment-friendly type water resistant tree medium-pressure power cable that blocks water, and its innovative point is: the described environment-friendly type water resistant tree medium-pressure power cable that blocks water is followed successively by water-blocking conductor, conductor shield, insulating barrier, insulation screen, the first semi-conducting water-resistant tape layer, metal screen layer, the second semi-conducting water-resistant tape layer, phase-splitting sheath, packed layer, insulation block water belting layer and external protection from inside to outside;
Wherein, described water-blocking conductor is a kind of in annealed copper conductor, aluminum or aluminum alloy conductor;
Described conductor shield is to extrude semiconductive material or bag semiconductive nylon tape to extrude a kind of in semiconductive material again;
Described insulating barrier is for being evenly extruded in the water resistant tree cross-linking polyethylene materials on described conductor screen;
Described insulation screen is for directly extruding a kind of in not peelable on described insulating barrier or strippable semi-conductive material;
Described the first semi-conducting water-resistant tape layer and the second semi-conducting water-resistant tape layer are the semiconductive waterstop being directly coated on described insulation shielding or in described metallic shield;
Described metal screen layer is a kind of in the combination of metal tape, metal knitted, wire and metal tape;
Described phase-splitting sheath is for being directly extruded in the high-density polyethylene material that described semiconductive blocks water on band;
Described packed layer for cable insulation material mutually polypropylene mesh compatible and that be applicable to cable operating temperature tear a kind of in rope, the fan-shaped packing of PVC;
The described insulation belting layer that blocks water is insulation that individual layer the is put up wrapped composition band that blocks water.
Preferably, the thickness of described the first semi-conducting water-resistant tape layer and the second semi-conducting water-resistant tape layer is 0.3mm.
Preferably, the metal tape in described metal screen layer is by least one wrapped the forming of described metal tape.
Preferably, the block water thickness of belting layer of described insulation is 0.3mm.
Preferably, described external protection is the outer jacket that extrudes the high density polyethylene (HDPE) protective cover material of composition.
Preferably; described external protection comprises inner covering, armour and outer jacket from inside to outside; described inner covering is the high density polyethylene (HDPE) protective cover material that extrudes composition, a kind of in circle wire, metal tape of described armour, and described outer jacket is the high density polyethylene (HDPE) protective cover material that extrudes composition.
The invention has the advantages that: environment-friendly type water resistant is set the medium-pressure power cable conductor that blocks water and adopted water-blocking conductor, insulating barrier adopts water resistant tree crosslinked polyetylene insulated, has prevented that moisture from entering the generation of rear water tree, increased the useful life of cable greatly.Environment-friendly type water resistant tree block water medium-pressure power cable have good radially with longitudinal water-blocking performance, in structure, be mainly manifested in water-blocking conductor, water resistant tree crosslinked polyetylene insulated, band, high density polyethylene (HDPE) sheath block water, overcome common power cable and be difficult to the environment that lays that adaptation is moist, moisture is more, solved water or aqueous vapor and entered impact and the harm producing after cable.It is lightweight that environment-friendly type water resistant is set the medium-pressure power cable that blocks water, and good bending property is convenient to transportation and lays, and environmental sound.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is done to further detailed description.
Diagram is the structural representation that a kind of environment-friendly type water resistant of the present invention is set the medium-pressure power cable that blocks water.
In figure: 1-water-blocking conductor, 2-conductor shield, 3-insulating barrier, 4-insulation screen, 5-the first semi-conducting water-resistant tape layer, 6-metal screen layer, 7-the second semi-conducting water-resistant tape layer, 8-phase-splitting sheath, 9-packed layer, 10-insulation block water belting layer, 11-inner covering, 12-armour, 13-outer jacket.
Embodiment
Environment-friendly type water resistant tree of the present invention blocks water, and medium-pressure power cable is followed successively by water-blocking conductor 1, conductor shield 2, insulating barrier 3, insulation screen 4, the first semi-conducting water-resistant tape layer 5, metal screen layer 6, the second semi-conducting water-resistant tape layer 7, phase-splitting sheath 8, packed layer 9 from inside to outside, belting layer 10 and the external protection of blocking water insulate.
Wherein, water-blocking conductor 1 is a kind of in annealed copper conductor, aluminum or aluminum alloy conductor; Conductor shield 2 extrudes a kind of in semiconductive material again for extruding semiconductive material or bag semiconductive nylon tape; Insulating barrier 3 is for being evenly extruded in the water resistant tree cross-linking polyethylene materials on conductor screen; Insulation screen 4 is a kind of in not peelable on direct extruded insulation layer 3 or strippable semi-conductive material; The first semi-conducting water-resistant tape layer 5 and the second semi-conducting water-resistant tape layer 7 are the semiconductive waterstop being directly coated on insulation shielding or in metallic shield; Metal screen layer 6 is a kind of in the combination of metal tape, metal knitted, wire and metal tape; Phase-splitting sheath 8 is for being directly extruded in the high-density polyethylene material that semiconductive blocks water on band; Packed layer 9 for cable insulation material mutually polypropylene mesh compatible and that be applicable to cable operating temperature tear a kind of in rope, the fan-shaped packing of PVC; Insulation insulation that belting layer 10 puts up wrapped composition for the individual layer band that blocks water that blocks water.
The thickness of above-mentioned the first semi-conducting water-resistant tape layer 5 and the second semi-conducting water-resistant tape layer 7 is 0.3mm; Metal tape in metal screen layer 6 is by least one wrapped the forming of metal tape; The block water thickness of belting layer 10 of insulation is 0.3mm.
In addition; external protection can be for extruding the high density polyethylene (HDPE) outer jacket 13 of composition; also can be for comprising from inside to outside inner covering 11, armour 12 and outer jacket 13; wherein; inner covering 11 is for extruding the high density polyethylene (HDPE) protective cover material of composition; a kind of in circle wire, metal tape of armour 12, outer jacket 13 is for extruding the high density polyethylene (HDPE) protective cover material of composition.
Above the invention embodiment is had been described in detail, but content is only the preferred embodiment of the invention, can not be considered to for limiting the practical range of the invention.All equalization variations of doing according to the invention application range and improvement etc., within all belonging to the patent covering scope of the invention.
Claims (6)
1. the environment-friendly type water resistant tree medium-pressure power cable that blocks water, is characterized in that: the described environment-friendly type water resistant tree medium-pressure power cable that blocks water is followed successively by water-blocking conductor, conductor shield, insulating barrier, insulation screen, the first semi-conducting water-resistant tape layer, metal screen layer, the second semi-conducting water-resistant tape layer, phase-splitting sheath, packed layer, insulation block water belting layer and external protection from inside to outside;
Wherein, described water-blocking conductor is a kind of in annealed copper conductor, aluminum or aluminum alloy conductor;
Described conductor shield is to extrude semiconductive material or bag semiconductive nylon tape to extrude a kind of in semiconductive material again;
Described insulating barrier is for being evenly extruded in the water resistant tree cross-linking polyethylene materials on described conductor screen;
Described insulation screen is for directly extruding a kind of in not peelable on described insulating barrier or strippable semi-conductive material;
Described the first semi-conducting water-resistant tape layer and the second semi-conducting water-resistant tape layer are the semiconductive waterstop being directly coated on described insulation shielding or in described metallic shield;
Described metal screen layer is a kind of in the combination of metal tape, metal knitted, wire and metal tape;
Described phase-splitting sheath is for being directly extruded in the high-density polyethylene material that described semiconductive blocks water on band;
Described packed layer for cable insulation material mutually polypropylene mesh compatible and that be applicable to cable operating temperature tear a kind of in rope, the fan-shaped packing of PVC;
The described insulation belting layer that blocks water is insulation that individual layer the is put up wrapped composition band that blocks water.
2. a kind of environment-friendly type water resistant as claimed in claim 1 is set the medium-pressure power cable that blocks water, and it is characterized in that: the thickness of described the first semi-conducting water-resistant tape layer and the second semi-conducting water-resistant tape layer is 0.3mm.
3. a kind of environment-friendly type water resistant as claimed in claim 1 is set the medium-pressure power cable that blocks water, and it is characterized in that: the metal tape in described metal screen layer is by least one wrapped the forming of described metal tape.
4. a kind of environment-friendly type water resistant tree as claimed in claim 1 medium-pressure power cable that blocks water, is characterized in that: the block water thickness of belting layer of described insulation is 0.3mm.
5. a kind of environment-friendly type water resistant as claimed in claim 1 is set the medium-pressure power cable that blocks water, and it is characterized in that: described external protection is the outer jacket that extrudes the high density polyethylene (HDPE) body protective cover material of composition.
6. a kind of environment-friendly type water resistant as claimed in claim 1 is set the medium-pressure power cable that blocks water; it is characterized in that: described external protection comprises inner covering, armour and outer jacket from inside to outside; described inner covering is the high density polyethylene (HDPE) protective cover material that extrudes composition; a kind of in circle wire, metal tape of described armour, described outer jacket is the high density polyethylene (HDPE) protective cover material that extrudes composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457178.9A CN104167248A (en) | 2014-09-10 | 2014-09-10 | Environment-friendly water-tree-resistant waterproof medium-voltage power cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410457178.9A CN104167248A (en) | 2014-09-10 | 2014-09-10 | Environment-friendly water-tree-resistant waterproof medium-voltage power cable |
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| CN104167248A true CN104167248A (en) | 2014-11-26 |
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| CN201410457178.9A Pending CN104167248A (en) | 2014-09-10 | 2014-09-10 | Environment-friendly water-tree-resistant waterproof medium-voltage power cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916349A (en) * | 2015-07-21 | 2015-09-16 | 马栋梁 | Electric twisted line synergistic embedded strip and use method thereof |
| CN105047265A (en) * | 2015-07-13 | 2015-11-11 | 远东电缆有限公司 | High-voltage flexible cable for smart energy motor train unit and production technology thereof |
| CN111524644A (en) * | 2020-04-30 | 2020-08-11 | 中天科技海缆有限公司 | Submarine cable |
| CN114898932A (en) * | 2022-05-30 | 2022-08-12 | 宏安集团有限公司 | Single-pair-number armored data cable |
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| GB2135812A (en) * | 1983-02-07 | 1984-09-05 | Furukawa Electric Co Ltd | Water impervious rubber or plastic insulated power cable |
| CN101916616A (en) * | 2010-08-19 | 2010-12-15 | 中国海洋石油总公司 | Submarine cable for power grid interlink of offshore oil platform |
| CN102364600A (en) * | 2011-11-16 | 2012-02-29 | 江苏亨通高压电缆有限公司 | Split-phase lead-coated submarine cable |
| CN202275658U (en) * | 2011-11-04 | 2012-06-13 | 安徽新亚特电缆集团有限公司 | Submarine power cable special for sea |
| CN203102889U (en) * | 2013-01-05 | 2013-07-31 | 杨锐 | High-speed mobile cable for numerical-control laser processing device and robot arm |
| CN103489528A (en) * | 2013-09-16 | 2014-01-01 | 无锡市长城电线电缆有限公司 | Crosslinked polyethylene insulating and water-blocking power cable |
| CN103680754A (en) * | 2013-12-20 | 2014-03-26 | 中天科技海缆有限公司 | Composite jumper cable for offshore oil platform |
| CN203706729U (en) * | 2014-02-19 | 2014-07-09 | 扬州市金阳光电缆有限公司 | Water blocking water-tree-resistant medium-voltage power cable |
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2014
- 2014-09-10 CN CN201410457178.9A patent/CN104167248A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135812A (en) * | 1983-02-07 | 1984-09-05 | Furukawa Electric Co Ltd | Water impervious rubber or plastic insulated power cable |
| CN101916616A (en) * | 2010-08-19 | 2010-12-15 | 中国海洋石油总公司 | Submarine cable for power grid interlink of offshore oil platform |
| CN202275658U (en) * | 2011-11-04 | 2012-06-13 | 安徽新亚特电缆集团有限公司 | Submarine power cable special for sea |
| CN102364600A (en) * | 2011-11-16 | 2012-02-29 | 江苏亨通高压电缆有限公司 | Split-phase lead-coated submarine cable |
| CN203102889U (en) * | 2013-01-05 | 2013-07-31 | 杨锐 | High-speed mobile cable for numerical-control laser processing device and robot arm |
| CN103489528A (en) * | 2013-09-16 | 2014-01-01 | 无锡市长城电线电缆有限公司 | Crosslinked polyethylene insulating and water-blocking power cable |
| CN103680754A (en) * | 2013-12-20 | 2014-03-26 | 中天科技海缆有限公司 | Composite jumper cable for offshore oil platform |
| CN203706729U (en) * | 2014-02-19 | 2014-07-09 | 扬州市金阳光电缆有限公司 | Water blocking water-tree-resistant medium-voltage power cable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047265A (en) * | 2015-07-13 | 2015-11-11 | 远东电缆有限公司 | High-voltage flexible cable for smart energy motor train unit and production technology thereof |
| CN104916349A (en) * | 2015-07-21 | 2015-09-16 | 马栋梁 | Electric twisted line synergistic embedded strip and use method thereof |
| CN111524644A (en) * | 2020-04-30 | 2020-08-11 | 中天科技海缆有限公司 | Submarine cable |
| CN114898932A (en) * | 2022-05-30 | 2022-08-12 | 宏安集团有限公司 | Single-pair-number armored data cable |
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Effective date of registration: 20160316 Address after: 226000 Nantong Province Economic and Technological Development Zone, the New South Road, No. 1, No. Applicant after: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd. Applicant after: Zhongtian Technology Equipment Cable Co., Ltd. Applicant after: Zhongtian Science and Technology Co., Ltd., Jiangsu Address before: 226000 Nantong Province Economic and Technological Development Zone, the New South Road, No. 1, No. Applicant before: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20141126 |