CN202796217U - 6-35 kV power cable with extruded insulation - Google Patents
6-35 kV power cable with extruded insulation Download PDFInfo
- Publication number
- CN202796217U CN202796217U CN 201220521690 CN201220521690U CN202796217U CN 202796217 U CN202796217 U CN 202796217U CN 201220521690 CN201220521690 CN 201220521690 CN 201220521690 U CN201220521690 U CN 201220521690U CN 202796217 U CN202796217 U CN 202796217U
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- Prior art keywords
- power cable
- cable
- sheath
- mica
- heat
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- 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
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Abstract
Disclosed is a 6-35 kV power cable with extruded insulation, mainly solving the problems that conventional insulated power cables are poor in heat radiating performance and short in service life. The power cable comprises core wires (1), insulating layers (2), and a sheath (3). The core wires (1) are externally and tightly coated by the insulating layers (2) to form single-phase cables. The number of the single-phase cables is three and the single-phase cables are arranged into a shape like a regular triangle. The power cable is characterized in that a heat conducting layer (4) is formed between the insulating layers (2) and the sheath (3), and a gap between the heat conducting layer (4) and the insulating layers (2) is filled with mica filling materials (5). The cable employs the mica filling materials which are relatively good in heat conducting property, and the cable is characterized by having a good heat radiating performance and a long service life.
Description
Technical field
The utility model relates to a kind of insulated power cable, is specifically related to a kind of 6-35kV extrusion insulating power cable.
Background technology
At present, insulated power cable has insulation property and certain resistance to corrosion, can effectively avoid phase fault and ground fault, is widely used in power distribution network.Existing insulated power cable mainly is comprised of heart yearn, insulating barrier and sheath, three heart yearns are one group, heart yearn is equilateral triangle and arranges, heart yearn has insulating barrier outward, sheath is cylindrical shape and is coated on outside the insulating barrier, between the insulating barrier of adjacent heart yearn the space is arranged, be filled with filler in this space, general filler all adopts the materials such as glass fibre, cotton, fiber crops.Because cable in use can produce heat, heat dispersion is relatively poor, causes the useful life of cable short.
The utility model content
In order to overcome the deficiency that existing insulated power cable heat dispersion is poor and useful life is short, the utility model provides a kind of 6-35kV extrusion insulating power cable, this cable adopts preferably mica filler of heat conductivility, has the characteristics of perfect heat-dissipating and long service life.
The technical solution of the utility model is: this 6-35kV extrusion insulating power cable, comprise heart yearn, insulating barrier and sheath, the outer closely coated insulation layer of heart yearn forms single-phase cable, single-phase cable is three and is the equilateral triangle arrangement, be provided with heat-conducting layer between insulating barrier and the sheath, be filled with mica filler in the space of heat-conducting layer and insulating barrier.
Described mica filler is mica powder or mica fiber.
The beneficial effects of the utility model are: owing to take such scheme, cable in use, the heat that heart yearn produces distributes out through insulating barrier, mica filler, heat-conducting layer and sheath fast, because mica filler good heat dispersion performance, heat conduction path is unimpeded, good heat dissipation effect, insulating barrier is difficult for aging, the cable long service life.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
1-heart yearn among the figure, 2-insulating barrier, 3-sheath, 4-heat-conducting layer, 5-mica filler.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this 6-35kV extrusion insulating power cable comprises heart yearn 1, insulating barrier 2 and sheath 3, heart yearn 1 outer tight coated insulation layer 2 forms single-phase cable, single-phase cable is three and is the equilateral triangle arrangement, be provided with heat-conducting layer 4 between insulating barrier 2 and the sheath 3, be filled with mica filler 5 in the space of heat-conducting layer 4 and insulating barrier 2.Also play bag when heat-conducting layer 4 plays conductive force and hold together mica filler 5, be convenient to extrude sheath 3 man-hour adding.Owing to take technique scheme, cable in use, the heat that heart yearn 1 produces distributes out through insulating barrier 2, mica filler 5, heat-conducting layer 4 and sheath 3 fast, because mica filler 5 good heat dispersion performance, heat conduction path is unimpeded, good heat dissipation effect, insulating barrier 2 is difficult for aging, the cable long service life.
Described mica filler 5 is mica powder or mica fiber.When mica filler 5 adopted mica powder, the materials processing cost was lower, but relatively bothers when extruding sheath 3; When mica filler 5 adopted mica powder, the materials processing cost was higher, but relatively easy when extruding sheath 3.Choosing according to user's needs of mica filler 5 decided.
Claims (2)
1. 6-35kV extrusion insulating power cable, comprise heart yearn (1), insulating barrier (2) and sheath (3), the outer closely coated insulation layer (2) of heart yearn (1) forms single-phase cable, single-phase cable is three and is the equilateral triangle arrangement, it is characterized in that: be provided with heat-conducting layer (4) between insulating barrier (2) and the sheath (3), be filled with mica filler (5) in the space of heat-conducting layer (4) and insulating barrier (2).
2. 6-35kV extrusion insulating power cable according to claim 1, it is characterized in that: mica filler (5) is mica powder or mica fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521690 CN202796217U (en) | 2012-10-10 | 2012-10-10 | 6-35 kV power cable with extruded insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521690 CN202796217U (en) | 2012-10-10 | 2012-10-10 | 6-35 kV power cable with extruded insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796217U true CN202796217U (en) | 2013-03-13 |
Family
ID=47823430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521690 Expired - Fee Related CN202796217U (en) | 2012-10-10 | 2012-10-10 | 6-35 kV power cable with extruded insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867606A (en) * | 2015-06-10 | 2015-08-26 | 江苏省电力公司洪泽县供电公司 | Power cable with heat radiation performance |
-
2012
- 2012-10-10 CN CN 201220521690 patent/CN202796217U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867606A (en) * | 2015-06-10 | 2015-08-26 | 江苏省电力公司洪泽县供电公司 | Power cable with heat radiation performance |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20191010 |