CN203746497U - Heat-resistant power cable - Google Patents
Heat-resistant power cable Download PDFInfo
- Publication number
- CN203746497U CN203746497U CN201420101850.6U CN201420101850U CN203746497U CN 203746497 U CN203746497 U CN 203746497U CN 201420101850 U CN201420101850 U CN 201420101850U CN 203746497 U CN203746497 U CN 203746497U
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- CN
- China
- Prior art keywords
- fire
- heat
- conductor
- cores
- core
- 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
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Abstract
The utility model discloses a heat-resistant power cable. The heat-resistant power cable includes a conductor and a fire-proof wire core; the conductor is formed by twisting of a plurality of soft copper wires; the conductor is wrapped by a ceramic fire-proof composite tape in an overlapping manner so as to form the fire-proof wire core; three fire-proof wire cores are combined and are extruded with a polyolefin insulating layer and a tinned copper wire shielding layer so as to form an insulating wire core; five insulating wire cores are twisted and are integrated with five insulating cable cores II, and then are wrapped with two layers of ceramic fire-proof composite tape, so that a wrapping layer is formed; the wrapping layer is coated with the tinned copper wire shielding layer; a PVC outer sheath layer is extruded outside the shielding layer; a nylon wire core is also arranged among the five insulating wire cores; and the five insulating cable cores II are respectively arranged between two adjacent ones of five insulating wire cores. The heat-resistant power cable is excellent in heat resistance and temperature resistance, and has the characteristics of being flame-retardant, halogen-free, non-toxic, low-smoke, and the like.
Description
technical field
The utility model relates to a kind of heat-resisting power cable, belongs to technical field of electric wires and cables.
background technology
Power cable (power cable), for transmitting and distribute the cable of electric energy.Be usually used in Urban Underground electrical network, power station lead line, industrial and mining enterprises in-line power and cross river, the submarine transmission line in sea excessively.In power circuit, the shared proportion of cable increases just gradually.Power cable be master in electric power system in circuit in order to transmission with distribute the cable product of high-power power, comprising 1-500KV and above various electric pressure, the power cable of various insulation.
utility model content
The utility model provides a kind of excellent heat-resisting and heat resistance that has, and also has the heat-resisting power cable of the features such as fire-retardant, Halogen, nontoxic, low cigarette simultaneously.
Scheme of the present utility model is as follows: a kind of heat-resisting power cable, comprise conductor, fire-resistant core, conductor adopts many annealed copper wires stranded, on described conductor, the fire-resistant composite band of overlapping wrapped ceramic forms fire-resistant core, extrudes polyolefin insulation layer, tinned copper wire screen formation insulated wire cores after three fire-resistant core combinations; After thoroughly doing away with the combination of edge cable core II with five after five insulated wire cores are stranded, the fire-resistant composite band of wrapped two layers of ceramic forms lapping layer; Tinned copper wire screen is set on described lapping layer, and described screen is extruded with polyvinyl chloride external sheath layer outward; In the middle of five described insulated wire cores, a nylon core is also set; Five described eradication edge cable core II are separately positioned on adjacent of five insulated wire cores; Described insulated wire cores II is made up of the outer wrapped polyvinyl chloride insulation layer of two fire-resistant cores.
Further, described conductor adopts and meets the second copper conductor structure in GB/T3956, and twisting pitch is 16～20 times.
Further, the wrapped thickness of described fire-resistant composite band is 0.4～1.0mm.
The utlity model has excellent heat-resisting and heat resistance, continuing serviceability temperature is-25 DEG C～125 DEG C; Superior fire-retardant, Halogen, nontoxic, low cigarette feature, meet the ROHS of European Union instruction, reaches ZA1 level security standard; The vibrations that can bear spray and the some strength of certain water, can ensure not rupturing of circuit, not short circuit; After burning, flame retardant coating is formed hard housing, has ensured that the copper liquid forming after conductor fusing does not flow out outside line; Insulating material mechanical performance and excellent electrical properties.Electric pressure is 600/1000V, finished product test voltage 3500V/5 minute.
brief description of the drawings
Fig. 1 is structural representation of the present utility model.
embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
A kind of heat-resisting power cable, comprise conductor, fire-resistant core, conductor adopts many annealed copper wires stranded, and on described conductor 1, the fire-resistant composite band 2 of overlapping wrapped ceramic forms fire-resistant core, extrudes polyolefin insulation layer 3, tinned copper wire screen 4 forms insulated wire cores after three fire-resistant cores combinations; After thoroughly doing away with 5 combinations of edge cable core II with five after five insulated wire cores are stranded, the fire-resistant composite band of wrapped two layers of ceramic forms lapping layer 6; On described lapping layer 6, tinned copper wire screen 7 is set, the outer polyvinyl chloride external sheath layer 8 that is extruded with of described screen 7; In the middle of five described insulated wire cores, a nylon core 9 is also set; Five described eradication edge cable core II 5 are separately positioned on adjacent of five insulated wire cores; Described insulated wire cores II 5 is made up of the outer wrapped polyvinyl chloride insulation layer of two fire-resistant cores.
Described conductor 1 adopts and meets the second copper conductor structure in GB/T3956, and twisting pitch is 16～20 times.The wrapped thickness of described fire-resistant composite band 2 is 0.4～1.0mm.
Although above embodiment of the present utility model has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present utility model and change and amendment; when its function producing does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection range of the present utility model.
Claims (3)
1. a heat-resisting power cable, comprise conductor, fire-resistant core, it is characterized in that conductor adopts many annealed copper wires stranded, on described conductor, the fire-resistant composite band of overlapping wrapped ceramic forms fire-resistant core, extrudes polyolefin insulation layer, tinned copper wire screen formation insulated wire cores after three fire-resistant core combinations; After thoroughly doing away with the combination of edge cable core II with five after five insulated wire cores are stranded, the fire-resistant composite band of wrapped two layers of ceramic forms lapping layer; Tinned copper wire screen is set on described lapping layer, and described screen is extruded with polyvinyl chloride external sheath layer outward; In the middle of five described insulated wire cores, a nylon core is also set; Five described eradication edge cable core II are separately positioned on adjacent of five insulated wire cores; Described insulated wire cores II is made up of the outer wrapped polyvinyl chloride insulation layer of two fire-resistant cores.
2. the heat-resisting power cable of one according to claim 1, is characterized in that described conductor employing meets the second copper conductor structure in GB/T3956, and twisting pitch is 16～20 times.
3. the heat-resisting power cable of one according to claim 1, is characterized in that the wrapped thickness of described fire-resistant composite band is 0.4～1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101850.6U CN203746497U (en) | 2014-03-06 | 2014-03-06 | Heat-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101850.6U CN203746497U (en) | 2014-03-06 | 2014-03-06 | Heat-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203746497U true CN203746497U (en) | 2014-07-30 |
Family
ID=51346267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420101850.6U Expired - Fee Related CN203746497U (en) | 2014-03-06 | 2014-03-06 | Heat-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203746497U (en) |
-
2014
- 2014-03-06 CN CN201420101850.6U patent/CN203746497U/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: 20140730 Termination date: 20150306 |
|
| EXPY | Termination of patent right or utility model |