CN204010796U - A kind of three core power cables - Google Patents
A kind of three core power cables Download PDFInfo
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- CN204010796U CN204010796U CN201320779097.1U CN201320779097U CN204010796U CN 204010796 U CN204010796 U CN 204010796U CN 201320779097 U CN201320779097 U CN 201320779097U CN 204010796 U CN204010796 U CN 204010796U
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- outer jacket
- outside
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- cable
- shielding layer
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Abstract
The utility model discloses a kind of three core power cables, comprise outer jacket and be evenly arranged on three cable cores in outer jacket; In outer jacket, between three cable cores, be provided with inserts, the structure of described cable core comprises: conductor, be arranged on the conductor shield in conductor outside, be arranged on the insulating barrier in conductor shield outside, be arranged on shielding layer of copper wires or the copper strip shielding layer in insulating barrier outside; Outside described outer jacket, one deck is carbon fiber reinforced the second outer jacket.Above-mentioned three core power cables of the utility model are larger than existing 45kV single-core power cables transmission capacity, thereby guaranteed the metallic shield effect of product, outside described outer jacket, one deck is that carbon fiber reinforced the second outer jacket significantly strengthens the tensile strength of outer jacket.
Description
Technical field
The utility model relates to a kind of power cable, relates in particular to a kind of three core power cables.
Background technology
The electric pressure of three common core power cables is generally 35kV, the structure of existing 35kV tri-core power cables comprises: outer jacket and be evenly arranged on three cable cores in outer jacket, in outer jacket, between three cable cores, be provided with inserts, the structure of described cable core comprises: conductor, be arranged on the conductor shield in conductor outside, be arranged on the insulating barrier in conductor shield outside, be arranged on the shielding layer of copper wires in insulating barrier outside, be arranged on the copper strip shielding layer in shielding layer of copper wires outside.Above-mentioned 35kV tri-core power cable transmission capacities are less, and transmission range is nearer, and the self transmission loss of power cable is larger, and the quality percentage of cable is not high.
The applicant has proposed a kind of single core and three core power cables at CN202003753 and CN202003754, makes the quality percentage of cable up to three core power cables of 45kV level.Described power cable, comprising: outer jacket and be evenly arranged on or three cable cores in outer jacket; In outer jacket, between three cable cores, be provided with inserts, the structure of described cable core comprises: conductor, be arranged on the conductor shield in conductor outside, be arranged on the insulating barrier in conductor shield outside, be arranged on the shielding layer of copper wires in insulating barrier outside, be arranged on the copper strip shielding layer in shielding layer of copper wires outside, outside at described insulating barrier is also provided with insulation screen, the insulation shielding bar that insulation screen is evenly arranged on insulating barrier outside by some spaces forms, and the copper wire of shielding layer of copper wires is dredged on insulation shielding bar equably; In described outer jacket outside, be also provided with equadag coating.
With equadag coating, prevent the cable infringement of induced electromotive force to cable that be in operation, can protect well cable, equadag coating is mixed by graphite and functional agent, and functional agent can be adhesive, colouring agent or pest repellant, has improved the comprehensive function of cable.Existing equadag coating and outer jacket without positive impact, and have adopted shielding layer of copper wires and the two-layer screen of copper strip shielding layer relatively redundancy and waste to the life-span of cable.
Utility model content
The purpose of this utility model is, structure to the equadag coating of existing cable and outer jacket and shielding layer of copper wires and the two-layer screen of copper strip shielding layer is improved, overcome redundancy and waste, do not affect again the electromagnetic shielding of cable, and increase and guarantee the sufficient intensity of cable.
Technical solution of the present utility model is that a kind of three core power cables, comprise outer jacket and be evenly arranged on three cable cores in outer jacket; In outer jacket, between three cable cores, be provided with inserts, the structure of described cable core comprises: conductor, be arranged on the conductor shield in conductor outside, and be arranged on the insulating barrier in conductor shield outside, be arranged on shielding layer of copper wires or the copper strip shielding layer in insulating barrier outside; Outside described outer jacket, one deck is carbon fiber reinforced the second outer jacket; Described conductor screen layer thickness is 0.6～1.0mm; Described thickness of insulating layer is 12～12.5mm; The thickness of the second outer jacket is 1.5-3mm.
Only adopt the one deck in shielding layer of copper wires and copper strip shielding layer, rather than adopt shielding layer of copper wires to add two layers of shielding layer structure of copper strip shielding layer.
The beneficial effects of the utility model are: above-mentioned three core power cables are than existing 45kV tri-core power cable transmission capacities larger (because conductor can be thicker), long transmission distance, thereby guaranteed the metallic shield effect of product, improved the quality percentage of cable, extended the useful life of cable; Outside described outer jacket, one deck is that carbon fiber reinforced the second outer jacket significantly strengthens the tensile strength of outer jacket, and shielding layer of copper wires adds copper strip shielding layer as long as still can guarantee suitable electromagnetic armouring structure and tensile property in the situation of one deck.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model 45kV tri-core power cables.
In figure: 1, outer jacket, 2, cable core, 21, conductor, 22, conductor shield, 23, insulating barrier, 24, shielding layer of copper wires, 3, inserts, the 4, second outer jacket.
Embodiment
Below in conjunction with the drawings and specific embodiments, describe the utility model in detail.
As shown in Figure 1,45kV tri-core power cables, comprise: outer jacket 1 and be evenly arranged on three cable cores 2 in outer jacket 1, between interior three cable cores 2 of outer jacket 1, be provided with inserts 3, the structure of described cable core 2 comprises: conductor 21, is arranged on the conductor shield 22 in conductor 21 outsides, be arranged on the insulating barrier 23 in conductor shield 22 outsides, be arranged on the shielding layer of copper wires 24 in insulating barrier 23 outsides, as shown in Figure 1, in described outer jacket 1 outside, be also provided with the second outer jacket 4.
Further technical scheme is: described conductor screen layer thickness is 0.6～1.0mm; Described insulating barrier 23 thickness are 12～12.5mm; Described insulating barrier is cross linked insulation layer or ethylene propylene rubber insulated layer.Above-mentioned 45kV tri-core power cables are larger than common 35kV single-core power cables transmission capacity, long transmission distance.
In the present embodiment, the second described outer jacket 4 is vulcanized rubbers identical with outer jacket, and the second outer jacket is mixed with the carbon fiber of 1% weight, and length is 2.5-6mm, and the thickness of the second outer jacket is 1.5-3mm, referring to CN 101580606.During preparation, coupling agent treatment is carried out in surface, after sulfuration for the preparation of in outer jacket outside.Therefore the gross thickness of existing outer jacket and the second outer jacket is thicker unlike the outer jacket of prior art.
In the present embodiment, described insulating barrier 23 is cross linked insulation layer or ethylene propylene rubber insulated layer.Described cross linked insulation layer is to be made by crosslinking process by the polyethylene of 100 parts, the antioxidant of 1.2 parts and the peroxide cross-linking agent of 2 parts.
Above-described embodiment is not to restriction of the present utility model; the those of ordinary skill in this art field; in the situation that not departing from the utility model spirit and protection range, can also make various variations and modification, therefore all technical schemes that are equal to do not exceed protection range of the present utility model yet.
Claims (1)
1. three core power cables, is characterized in that comprising outer jacket and are evenly arranged on three cable cores in outer jacket; In outer jacket, between three cable cores, be provided with inserts, the structure of described cable core comprises: conductor, be arranged on the conductor shield in conductor outside, be arranged on the insulating barrier in conductor shield outside, be arranged on shielding layer of copper wires or the copper strip shielding layer in insulating barrier outside; Outside described outer jacket, one deck is carbon fiber reinforced the second outer jacket; Described conductor screen layer thickness is 0.6～1.0mm; Described thickness of insulating layer is 12～12.5mm; The thickness of the second outer jacket is 1.5-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320779097.1U CN204010796U (en) | 2013-11-29 | 2013-11-29 | A kind of three core power cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320779097.1U CN204010796U (en) | 2013-11-29 | 2013-11-29 | A kind of three core power cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204010796U true CN204010796U (en) | 2014-12-10 |
Family
ID=52050759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320779097.1U Expired - Fee Related CN204010796U (en) | 2013-11-29 | 2013-11-29 | A kind of three core power cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204010796U (en) |
-
2013
- 2013-11-29 CN CN201320779097.1U patent/CN204010796U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20181129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |