CN202632858U - Crosslinked polyethylene insulated power cable - Google Patents

Crosslinked polyethylene insulated power cable Download PDF

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Publication number
CN202632858U
CN202632858U CN 201220273052 CN201220273052U CN202632858U CN 202632858 U CN202632858 U CN 202632858U CN 201220273052 CN201220273052 CN 201220273052 CN 201220273052 U CN201220273052 U CN 201220273052U CN 202632858 U CN202632858 U CN 202632858U
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CN
China
Prior art keywords
cross
layer
power cable
conductor
linked polyethylene
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 - Fee Related
Application number
CN 201220273052
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Chinese (zh)
Inventor
肖勇
邓思明
杨磊
周玉群
雷战锋
刘向云
朱国红
雷志伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI HENGTAI WIRE AND CABLE CO Ltd
Original Assignee
HUBEI HENGTAI WIRE AND CABLE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUBEI HENGTAI WIRE AND CABLE CO Ltd filed Critical HUBEI HENGTAI WIRE AND CABLE CO Ltd
Priority to CN 201220273052 priority Critical patent/CN202632858U/en
Application granted granted Critical
Publication of CN202632858U publication Critical patent/CN202632858U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a crosslinked polyethylene insulated power cable which comprises a conductor, an insulating layer, a filling layer, a grid layer and an outer protection layer, wherein the conductor is arranged on the centre of the cable, the insulating layer is tightly extruded on the outer layer of the conductor, the grid layer is covered outside the insulating layer, the filling layer is arranged between the insulating layer and the grid layer, and the outer protection layer is arranged on the outermost layer of the cable; and a non-magnetic material armoring layer is arranged between the grid layer and the outer protection layer. The crosslinked polyethylene insulated power cable has the characteristics of reasonable structure, novel appearance, good performance and lower cost, is capable of bearing larger current, and better meets the requirement of electric power transmission of 0.6/1kW.

Description

A kind of power cable with cross-linked polyethylene insulation
Technical field
The utility model relates to field of cables, particularly relates to a kind of power cable with cross-linked polyethylene insulation.
Background technology
Power cable is divided into some kinds according to the scope of application, architectural feature and performance requirement, and the in-line power that the polyvinyl chloride insulation power cable often is laid in the lead line in the underground electrical network in city, power station and is used for industrial and mining enterprises also had the river submarine transmission line in sea excessively.Existing common polyvinyl chloride insulation power cable is because the reasons in structure of self; Existence causes the problem of easy firing damage because of the long-term work temperature is too high; Generally be limited to below 70 ℃, so just restricted the use power of power cable, influenced its scope of application.
The utility model content
The technical problem that the utility model mainly solves provides a kind of simple in structure, good flame retardation effect, satisfies the power cable with cross-linked polyethylene insulation of long-term work under hot environment.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of power cable with cross-linked polyethylene insulation is provided; Said power cable with cross-linked polyethylene insulation comprises conductor, insulating barrier, packed layer, belting layer and outer jacket; Said conductor is located at the center of said cable, and said insulating barrier closely is extruded in the skin of said conductor, and said insulating barrier is coated with belting layer; Be provided with packed layer between said insulating barrier and the said belting layer, said outer jacket is located at the outermost layer of said cable; Wherein, be provided with the non-magnetic material armour between said belting layer and the said outer jacket.
Wherein, said conductor is steel reinforced aluminium conductor or copper core aluminum stranded wire or aluminium alloy core twisted wire.
Wherein, the cross section of said conductor is circular.
Wherein, the quantity of said conductor is five.
Wherein, said insulating barrier employing cross-linking polyethylene materials extrudes and forms.
Wherein, the cross-linking polyethylene materials of said insulating barrier adopts one-step silane cross-linked polyethylene, and crosslinking agent is a liquid silane.
Wherein, said outer jacket adopts 90 ℃ of pvc materials to extrude and forms, and its performance index satisfy the GB2952 standard.
Wherein, the material of said non-magnetic material armour is a steel band.
The beneficial effect of the utility model is: the polyvinyl chloride insulation power cable that is different from prior art; The utility model power cable with cross-linked polyethylene insulation has been provided with the belting layer of fire retardation between insulating barrier and outer jacket; When cable was on fire, the carburization zone that belting layer forms heat insulation resistance oxygen played a protective role to cable, and the utility model is provided with steel-tape armouring layer and 90 ℃ of polyvinyl chloride outer jackets simultaneously; Not only has the favorable mechanical performance; But also have certain not flame-retarding power, play and both protect the cable internal part, double effects that again can be fire-retardant.The utlity model has the stable and lower-cost characteristics of rational in infrastructure, transmission performance, can bear bigger electric current, satisfy the electric power transfer demand of 0.6/1KW preferably.
Description of drawings
Fig. 1 is the cross section structure sketch map of the power cable with cross-linked polyethylene insulation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
See also Fig. 1; The utility model provides a kind of power cable with cross-linked polyethylene insulation, and power cable with cross-linked polyethylene insulation comprises conductor 1, insulating barrier 2, belting layer 3, packed layer 4 and outer jacket 5, and conductor 1 is located at the center of cable; The cross section of conductor 1 is circular; Conductor 1 is a steel reinforced aluminium conductor, also can be the copper core aluminum stranded wire, can also adopt the aluminium alloy core twisted wire.Insulating barrier 2 closely is extruded in the skin of conductor 1, and the quantity of conductor 1 is five, is evenly distributed in the insulating barrier 2.Wherein, insulating barrier 2 adopts cross-linking polyethylene materials to extrude and forms, and cross-linking polyethylene materials adopts one-step silane cross-linked polyethylene, and crosslinking agent is a liquid silane.Insulating barrier 2 is coated with belting layer 3, is provided with packed layer 4 between insulating barrier 2 and the belting layer 3, and outer jacket 5 is located at the outermost layer of cable, and wherein, outer jacket 5 adopts 90 ℃ of pvc materials to extrude and forms, and its performance index satisfy the GB2952 standard.Be provided with non-magnetic material armour 6 between belting layer 3 and the outer jacket 5, the material of non-magnetic material armour 6 is a steel band.
As shown in Figure 1; The power cable with cross-linked polyethylene insulation of the utility model is when making; At first according to the demand stranded making conductor 1 of power engineering to the different tensile strength of insulated conductor; Specifically, in the present embodiment, conductor 1 is through after-combustion and stranded and process aluminium core conductor wire core by the aluminium core aluminum stranded wire; Adopt cable industry common apparatus 0+3 formula chemical crosslinking unit utilization cable common processes-silane crosslinking technology with on the disposable face of cylinder that is extruded in conductor 1 of organosilane crosslinked polyethylene then, thereby form insulating barrier 2.Then the outer surface at insulating barrier 2 is provided with one deck belting layer 3, and wherein belting layer 3 can adopt mica tape or nonwoven fabrics material, tears rope with polypropylene again and fills, and is extruded in through cabling process and forms packed layer 4 between insulating barrier and the belting layer.Again one deck non-magnetic material armour 6 will be set at the outer surface of belting layer 3, in the present embodiment, non-magnetic material is a steel band.Steel-tape armouring layer 6 makes cable can bear the effect of mechanical external force.At last on the surface of steel-tape armouring layer 6 one deck outer jacket 5 is set, outer jacket 5 is extruded by pvc material and forms, and its performance index satisfy the GB2952 standard.
Because the power cable with cross-linked polyethylene insulation of the utility model has used crosslinked polyetylene insulated; Compared with traditional polyvinyl chloride insulation; Crosslinked polyethylene has higher working temperature and short circuit temperature, longer weather-resistant life-span, also has better anti-mechanical performance, simultaneously the specific insulation of crosslinked polyethylene higher relatively; Dielectric constant good electrical property less than normal, good insulating effect.When cable was on fire, the mica tape in the belting layer 3 formed the carburization zone of heat insulation resistance oxygen, and cable is played protection, thereby organized flame along cable expansion burning.When periphery was on fire, belting layer 3 can protect cable to be without prejudice within a certain period of time, ensured the normal operation of electric power.In addition, outer jacket 5 adopts 90 ℃ of pvc materials, not only has mechanical performance preferably, but also has certain not flame-retarding power, plays and both protects the cable internal part, double effects that again can be fire-retardant.
Compare with the aerial insulated cable of prior art, the utlity model has rational in infrastructure, profile is novel, function admirable and lower-cost characteristics, can bear bigger electric current, satisfies the electric power transfer demand of 0.6/1KW preferably.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.

Claims (8)

1. power cable with cross-linked polyethylene insulation; It is characterized in that said power cable with cross-linked polyethylene insulation comprises conductor, insulating barrier, packed layer, belting layer and outer jacket, said conductor is located at the center of said cable; Said insulating barrier closely is extruded in the skin of said conductor; Said insulating barrier is coated with belting layer, is provided with packed layer between said insulating barrier and the said belting layer, and said outer jacket is located at the outermost layer of said cable; Wherein, be provided with the non-magnetic material armour between said belting layer and the said outer jacket.
2. power cable with cross-linked polyethylene insulation according to claim 1 is characterized in that, said conductor is steel reinforced aluminium conductor or copper core aluminum stranded wire or aluminium alloy core twisted wire.
3. power cable with cross-linked polyethylene insulation according to claim 2 is characterized in that, the cross section of said conductor is circular.
4. power cable with cross-linked polyethylene insulation according to claim 3 is characterized in that, the quantity of said conductor is five.
5. power cable with cross-linked polyethylene insulation according to claim 1 is characterized in that, said insulating barrier adopts cross-linking polyethylene materials to extrude and forms.
6. power cable with cross-linked polyethylene insulation according to claim 5 is characterized in that, the cross-linking polyethylene materials of said insulating barrier adopts one-step silane cross-linked polyethylene, and crosslinking agent is a liquid silane.
7. power cable with cross-linked polyethylene insulation according to claim 1 is characterized in that, said outer jacket adopts 90 ℃ of pvc materials to extrude and forms.
8. power cable with cross-linked polyethylene insulation according to claim 1 is characterized in that, the material of said non-magnetic material armour is a steel band.
CN 201220273052 2012-06-12 2012-06-12 Crosslinked polyethylene insulated power cable Expired - Fee Related CN202632858U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220273052 CN202632858U (en) 2012-06-12 2012-06-12 Crosslinked polyethylene insulated power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220273052 CN202632858U (en) 2012-06-12 2012-06-12 Crosslinked polyethylene insulated power cable

Publications (1)

Publication Number Publication Date
CN202632858U true CN202632858U (en) 2012-12-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220273052 Expired - Fee Related CN202632858U (en) 2012-06-12 2012-06-12 Crosslinked polyethylene insulated power cable

Country Status (1)

Country Link
CN (1) CN202632858U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD779440S1 (en) 2014-08-07 2017-02-21 Henkel Ag & Co. Kgaa Overhead transmission conductor cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD779440S1 (en) 2014-08-07 2017-02-21 Henkel Ag & Co. Kgaa Overhead transmission conductor cable
USD868701S1 (en) 2014-08-07 2019-12-03 Henkel Ag & Co. Kgaa Overhead transmission conductor cable

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121226

Termination date: 20140612