CN202307293U - 64/110kV cross-linked polyethylene insulation high-voltage power cable - Google Patents

64/110kV cross-linked polyethylene insulation high-voltage power cable Download PDF

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Publication number
CN202307293U
CN202307293U CN2011204280075U CN201120428007U CN202307293U CN 202307293 U CN202307293 U CN 202307293U CN 2011204280075 U CN2011204280075 U CN 2011204280075U CN 201120428007 U CN201120428007 U CN 201120428007U CN 202307293 U CN202307293 U CN 202307293U
Authority
CN
China
Prior art keywords
voltage power
power cable
copper
semiconductive
linked polyethylene
Prior art date
Application number
CN2011204280075U
Other languages
Chinese (zh)
Inventor
孙磊
赵英荣
戴凌云
Original Assignee
江苏东峰电缆有限公司
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Filing date
Publication date
Application filed by 江苏东峰电缆有限公司 filed Critical 江苏东峰电缆有限公司
Priority to CN2011204280075U priority Critical patent/CN202307293U/en
Application granted granted Critical
Publication of CN202307293U publication Critical patent/CN202307293U/en

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Abstract

The utility model discloses a 64/110kV cross-linked polyethylene insulation high-voltage power cable including a copper conductor formed by twisting and pressing a plurality of copper wires. A semiconductor shielding layer, a cross-linked polyethylene insulation layer, a semi-conductive insulation shielding layer, a first semi-conductive waterproof tape and a copper wire shielding layer are arranged outside the copper conductor successively. The copper wire shielding layer is wrapped with a copper ribbon, a second semi-conductive waterproof tape and a composite aluminum-plastics tape successively. An outer sheath is extruded outside the composite aluminum-plastics tape. The 64/110kV cross-linked polyethylene insulation high-voltage power cable in the utility model is environment friendly. The 64/110kV cross-linked polyethylene insulation high-voltage power cable in the utility model generates no pollution in a using process and can be produced continuously. The production efficiency is high and the material is easy to obtain. A structure of wrapping an aluminum tube on the cable is formed by adopting the composite aluminum-plastics tape for wrapping longitudinally. Aluminum is metal material having good performance and water can not permeate through. The multiple layers of semi-conductive waterproof tapes and buffer tapes are arranged in the aluminum tube. The waterproof tapes expand quickly once the waterproof tapes contact with water, thereby effectively preventing the water from permeating into the waterproof structure. Thus, the service lifetime of the 64/110kV cross-linked polyethylene insulation high-voltage power cable is prolonged.

Description

The crosslinked polyetylene insulated high voltage power cable of 64/110kV
Technical field
The utility model relates to a kind of electric wire, is the crosslinked polyetylene insulated high voltage power cable of a kind of 64/110kV specifically.
Background technology
Along with the development of society, the city is increasing, and power load is increasingly high, and the safety requirements of power supply is more and more important.The urban electricity supply circuit is more and more closeer, become increasingly complex.Simultaneously because of the city appearance of the city needs, require attractive in appearancely as far as possible, do not adopt overhead transmission line as far as possible, employing is as much as possible put cable underground.Based on above reason, present large-and-medium size cities are adopted the twisted polyethylene cable of 64/110kV in a large number, get off to accomplish the conveying of big capacity electric energy through ground.
The structure composition of 64/110kV power cable mainly contains conductor, insulation, watertight composition and external protection.The 64/110kV power cable belongs to high voltage power cable, and the electric field strength in the cable insulation of energising back is bigger, and any structure design is improper, manufacturing defect or installation and operation are incorrect, all can cause cable breakdown, can't normally use; In the cables manufacturing process, insulation will guarantee not pollute, if having impurity or bubble in the insulation, then is easy to puncture after the cable energising; If there is moisture to get into the insulation of cable, then can reduce greatly by the life-span of cable in running for cable.
The utility model content
Goal of the invention: the purpose of the utility model is in order to overcome the deficiency of prior art, and a kind of rational in infrastructure, crosslinked polyetylene insulated high voltage power cable of 64/110kV that can improve useful life and safety in utilization is provided.
Technical scheme: in order to solve the problems of the technologies described above; The technical scheme that the utility model adopted is: the crosslinked polyetylene insulated high voltage power cable of a kind of 64/110kV; Comprise by the many stranded copper conductors that press of copper wire; Be provided with semiconductive conductor shield, crosslinked polyetylene insulated layer, semiconductive insulation screen, the first semiconductive waterstop, copper wire screen successively in the outside of copper conductor; Be surrounded with copper band, the second semiconductive waterstop, aluminium-plastic tape successively in copper wire screen outside, be extruded with oversheath in the outside of aluminium-plastic tape.
Conduction conductor shield, crosslinked polyetylene insulated layer, semiconductive insulation screen three closely combine glossily, so just guarantee that the cable field in the crosslinked polyetylene insulated layer in cable energising back can be lopsided, are evenly distributed.Adopt the first semiconductive waterstop, its is met water and can expand rapidly, and the entering of blocks moisture effectively prolongs cable useful life.The copper band is wrapped with copper strips, is used for tightening the copper wire of copper wire screen.The second semiconductive waterstop is to be used for blocks moisture when cable, to permeate.
Said aluminum plastic composite belt longitudinal wraps in the outside of the second semiconductive waterstop; Because aluminium is the metal material of function admirable, so moisture can not see through aluminium-plastic tape, thereby reaches good waterproof effect.
Be coated with the semiconductive graphite linings in the outside of said oversheath.
Beneficial effect: compared with prior art, the utility model environment-friendly type, do not pollute in the use, can produce continuously, production efficiency is high, and material is easy to obtain; Adopt the aluminum plastic composite belt longitudinal bag; Form an aluminum pipe and wrap in the structure on the cable, aluminium is the metal material of function admirable, and moisture can not see through; Placed multilayer semiconductive waterstop buffer strip again in the aluminum pipe the inside; Waterstop is met water and can be expanded rapidly, and the waterproof construction that can stop moisture to infiltrate effectively prolongs cable useful life.The utility model is applicable to that ac rated voltage (U0/U) is the neutral-point solid ground transmission line system of 64/110kV.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to specify.
As shown in Figure 1; The crosslinked polyetylene insulated high voltage power cable of a kind of 64/110kV; Comprise copper conductor 1, be coated with semiconductive conductor shield 2, crosslinked polyetylene insulated layer 3, semiconductive insulation screen 4, the first semiconductive waterstop 5, copper wire screen 6 in the outside of copper conductor 1 successively, be surrounded with copper band 7 in copper wire screen 6 outsides; And then with the second semiconductive waterstop, 8 wrapped outsides at copper band 7; Vertically in the outside of the second semiconductive waterstop 8 be surrounded by aluminium-plastic tape 9, be extruded with oversheath 10, be coated with one deck semiconductive graphite 11 in the outside of oversheath 10 in the outside of aluminium-plastic tape 9.
Wherein copper conductor 1 was formed by many stranded pressing of copper wire, and crosslinked polyetylene insulated layer 3 is to be formed by ultra clean crosslinked polyetylene insulated extruding, and its thickness is 16.5mm.Semiconductive conductor shield 2, semiconductive insulation screen 4 all are semiconductive materials; Closely combine glossily with crosslinked polyetylene insulated layer 3 then; So just guarantee that the cable field in the crosslinked polyetylene insulated layer 3 in cable energising back can be not lopsided, be evenly distributed.The first semiconductive waterstop 5 is wrapped semiconductive waterstops, and meeting water can expand rapidly, and the entering of blocks moisture effectively prolongs cable useful life.Copper wire screen 6 is entwined by many copper wires.Copper band 7 is that copper strips is wrapped, is used for tightening the copper wire of copper wire screen 6.The second semiconductive waterstop 8 is to be used for blocks moisture when cable, to permeate.The thickness of vertical alclad plastic composite strip 9 is 0.2mm, and it is used for waterproof, and aluminium is the metal material of function admirable, so moisture can not see through vertical alclad plastic composite strip 9.Oversheath 10 is extruded in aluminium-plastic tape 9, and the material of oversheath 10 is polyethylene (PE).The semiconductive graphite linings 11 that also has one deck to apply on the outer surface of oversheath 10, its effect is the ground connection of cable jacket 10 withstand voltage tests, effectively the surface induction electricity is bled into the earth after cable puts into operation.The first semiconductive waterstop 5, the second semiconductive waterstop 8 are semiconductive waterstops; Semiconductive insulation screen 4, the first semiconductive waterstop 5, copper wire screen 6, copper band 7, aluminium-plastic tape 9 this which floor are exactly mutual short circuit like this; Copper wire in the copper wire screen 6 in service, the copper strips in the copper band 7 are ground connection, and the electric charge in any like this one deck can successfully flow into the earth.
The utility model adopts more reasonable structural design, thereby can improve the useful life and the safety in utilization of 64/110kV cable.
The above only is the preferred implementation of the utility model; Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle; Can also make some modification and improvement, these also should be regarded as belonging to the protection range of the utility model.

Claims (6)

1. crosslinked polyetylene insulated high voltage power cable of 64/110kV; It is characterized in that: comprise by the many stranded copper conductors that press of copper wire (1); Be provided with semiconductive conductor shield (2), crosslinked polyetylene insulated layer (3), semiconductive insulation screen (4), the first semiconductive waterstop (5), copper wire screen (6) successively in the outside of copper conductor (1); Be surrounded with copper band (7), the second semiconductive waterstop (8), aluminium-plastic tape (9) successively in copper wire screen (6) outside, be extruded with oversheath (10) in the outside of aluminium-plastic tape (9).
2. the crosslinked polyetylene insulated high voltage power cable of 64/110kV according to claim 1 is characterized in that: the thickness of said insulating barrier (3) is 16.5mm.
3. the crosslinked polyetylene insulated high voltage power cable of 64/110kV according to claim 1 is characterized in that: said copper wire screen (6) is entwined by many copper wires.
4. the crosslinked polyetylene insulated high voltage power cable of 64/110kV according to claim 1 is characterized in that: the vertical outside that wraps in the second semiconductive waterstop (8) of said aluminium-plastic tape (9).
5. the crosslinked polyetylene insulated high voltage power cable of 64/110kV according to claim 1 is characterized in that: the material of said oversheath (10) is a polyethylene.
6. the crosslinked polyetylene insulated high voltage power cable of 64/110kV according to claim 1 is characterized in that: be coated with semiconductive graphite linings (11) in the outside of said oversheath (10).
CN2011204280075U 2011-11-01 2011-11-01 64/110kV cross-linked polyethylene insulation high-voltage power cable CN202307293U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204280075U CN202307293U (en) 2011-11-01 2011-11-01 64/110kV cross-linked polyethylene insulation high-voltage power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204280075U CN202307293U (en) 2011-11-01 2011-11-01 64/110kV cross-linked polyethylene insulation high-voltage power cable

Publications (1)

Publication Number Publication Date
CN202307293U true CN202307293U (en) 2012-07-04

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103219085A (en) * 2013-04-22 2013-07-24 江苏馨晟特种电缆有限公司 Insulation polyvinyl chloride protective jacket power cable
CN103236308A (en) * 2013-04-22 2013-08-07 江苏馨晟特种电缆有限公司 Metallic shield rubber jacketed flexible cable for coal mining machine
CN104575779A (en) * 2013-10-13 2015-04-29 宁夏海洋线缆有限公司 All-plastic high-performance cable
CN104821199A (en) * 2015-05-05 2015-08-05 重庆泰山电缆有限公司 High-efficiency compact cable
CN106205831A (en) * 2016-08-30 2016-12-07 无锡江南电缆有限公司 A kind of rated voltage 66/110KV copper strip shielding water-resistant power cable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103219085A (en) * 2013-04-22 2013-07-24 江苏馨晟特种电缆有限公司 Insulation polyvinyl chloride protective jacket power cable
CN103236308A (en) * 2013-04-22 2013-08-07 江苏馨晟特种电缆有限公司 Metallic shield rubber jacketed flexible cable for coal mining machine
CN104575779A (en) * 2013-10-13 2015-04-29 宁夏海洋线缆有限公司 All-plastic high-performance cable
CN104821199A (en) * 2015-05-05 2015-08-05 重庆泰山电缆有限公司 High-efficiency compact cable
CN106205831A (en) * 2016-08-30 2016-12-07 无锡江南电缆有限公司 A kind of rated voltage 66/110KV copper strip shielding water-resistant power cable

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20151101

EXPY Termination of patent right or utility model