CN202711884U - Polytetrafluoroethylene film for electric power cable - Google Patents
Polytetrafluoroethylene film for electric power cable Download PDFInfo
- Publication number
- CN202711884U CN202711884U CN2012203775766U CN201220377576U CN202711884U CN 202711884 U CN202711884 U CN 202711884U CN 2012203775766 U CN2012203775766 U CN 2012203775766U CN 201220377576 U CN201220377576 U CN 201220377576U CN 202711884 U CN202711884 U CN 202711884U
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- power cable
- electric power
- polytetrafluoroethylene film
- poly tetrafluoroethylene
- utility
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Abstract
A polytetrafluoroethylene film for an electric power cable is characterized in that the length of a roll of the polytetrafluoroethylene film for the electric power cable is 50 meters to 3000 meters, the thickness is 0.03 mm to 0.3 mm, the density is 1.5-1.6 g/cm<3>, the tensile strength in a radial direction is at least 15 MPa, the tensile strength in a weft direction is at least 2.5 MPa. The polytetrafluoroethylene film for the electric power cable can effectively improve the comprehensive property of the electric power cable; due to the long length and the uniform thickness of the polytetrafluoroethylene film for the electric power cable, when the polytetrafluoroethylene film for the electric power cable is wound on a conductor, the repeated winding can be avoided, so that the heat radiation efficiency reduction in the repeated winding position, the temperature rise and the electric power cable impedance increase in the current transmission process can be avoided; and the poor concentricity of an insulation layer and a sheath layer of the current electric power cable can be solved, the current transmission efficiency is improved, and the energy consumption is reduced. The polytetrafluoroethylene film for the electric power cable is applicable to the electric power cable.
Description
Technical field
The utility model relates to a kind of power cable, particularly relates to a kind of power cable poly tetrafluoroethylene.
Background technology
Present employed power cable insulation layer external diameter is large, and easily broken when installing and using or split, have a strong impact on the fail safe that power cable uses, and employed power cable insulation layer is scarcely high temperature resistant, when the weather sweltering heat or cable environment for use temperature is higher and power cable conductor transmission current process in a large amount of heat that produces easily make insulating barrier softening even cause fire, employed power cable insulation layer and restrictive coating concentricity are poor in addition, affect the efficiency of transmission of electric current, generally speaking, there are all weak points in employed power cable insulation layer, affects thus the useful life of station service power cable.
Summary of the invention
The purpose of this utility model is that a kind of power cable poly tetrafluoroethylene will be provided, it not only can improve the combination property of power cable effectively, and both can avoid on the coiled conductor repeating twining and make and repeat to twine the position radiating efficiency in the current delivery process and reduce, temperature raises, cable resistance increases electric power, can solve again existing power cable insulation layer and the poor problem of restrictive coating concentricity, and improve current delivery efficient, reduce energy consumption.
The utility model is achieved in that power cable of the present utility model is 50m-3000m with the volume length of poly tetrafluoroethylene to achieve the above object, thickness is 0.03mm-0.3mm, density is 1.5-1.6g/cm3, and tensile strength radially is at least 15MPa, and broadwise is at least 2.5MPa.
Described power cable is that the thickness deviation of 50m-1000m is ± 0.003mm with poly tetrafluoroethylene volume length.
Described power cable is that the thickness deviation of 1000m-2000m is ± 0.004mm with poly tetrafluoroethylene volume length.
Described power cable is that the thickness deviation of 2000m-3000m is ± 0.005mm with poly tetrafluoroethylene volume length.
Described power cable with the density tolerance of poly tetrafluoroethylene is ± 0.03g/cm3.
The utility model provides a kind of power cable poly tetrafluoroethylene, and polytetrafluoroethyldispersion dispersion resin is added auxiliary agent be mixed into pasty state, then paste resin is extruded through mould and made diaphragm, again diaphragm is heated de-oiling, high temperature sintering, once the operations such as typing, secondary typing are made the cable film, cut at last rolling.
Power cable of the present utility model is 50m-3000m with the volume length of poly tetrafluoroethylene, and thickness is 0.03mm-0.3mm, and density is 1.5-1.6g/cm3, and tensile strength radially is at least 15MPa, and broadwise is at least 2.5MPa.
Power cable of the present utility model has following features with poly tetrafluoroethylene:
1, pliability: power cable of the present utility model uses poly tetrafluoroethylene by self pliability, and improve tensile strength and radially be at least 15MPa, broadwise is at least 2.5MPa, thus, be wrapped on the conductor, greatly improved fail safe and the useful life of power cable.
2, insulating properties: power cable of the present utility model all has good dielectric property and electrical stability with poly tetrafluoroethylene in very wide frequency range, and dielectric loss angle tangent is below 0.0004 before reaching the 10MHz frequency, and dielectric constant is 2.1.
3, cold-resistant hot: power cable of the present utility model is constant with dielectric constant and dielectric loss angle tangent basic maintenance in-40 ℃ of-240 ℃ of temperature ranges of poly tetrafluoroethylene, reaches c class F insulating material F standard, and namely heatproof is more than 180 ℃.
4, chemical resistance: power cable of the present utility model has fabulous resistance to weathering in addition with poly tetrafluoroethylene, and aging life-span is the longest material of time in all plastics, to most of chemicals and solvent, shows inertia.Sodium metal under fluorine gas and molten condition has certain corrosivity it, and nearly all strong acid, highly basic, strong oxidizer and organic solvent are all inoperative to it.
5, anti-flammability: power cable of the present utility model is high temperature resistant to 260 ℃ with poly tetrafluoroethylene, and melting temperature is more than 330 ℃, and nonflammable, can effectively avoid in the power cable use procedure because of the phenomenon on fire of generating heat, and limited oxygen index is below 90.
6, even thickness: power cable of the present utility model is 0.03mm-0.3mm with the polytetrafluoroethylene film thickness, thickness deviation is ± 0.005mm, density is 1.5-1.6g/cm3, the density tolerance is ± 0.03g/cm3, and existing cable insulation and the poor problem of restrictive coating concentricity both can have been solved on the coiled conductor, and raising current delivery efficient, reduce energy consumption, can guarantee effectively that again the heat that produces in the electric wire current delivery process is basic identical at each orientation radiating efficiency, thereby guarantee that also each position temperature of whole power cable is basic identical, thereby reduce impedance that the temperature difference produces.
7, length is long: power cable of the present utility model is 50m-3000m with the volume length of poly tetrafluoroethylene, to be conducive to reduce coiling length and produce not joint, effectively avoid repeating twining and make and repeat to twine the position radiating efficiency in the current delivery process and reduce, temperature raises, and increases cable resistance.
In brief, power cable of the present utility model had not only been gathered around with the characteristic of polytetrafluoroethylene but also had been manufactured with poly tetrafluoroethylene and met the film that power cable is used, but and the combination property of Effective Raise power cable.Power cable of the present utility model is suitable for the application of power cable with poly tetrafluoroethylene.
Description of drawings
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the schematic diagram that power cable of the present utility model is used poly tetrafluoroethylene.
Embodiment
Below with reference to accompanying drawing power cable of the present utility model is described in further detail with poly tetrafluoroethylene.
With reference to Fig. 1, the power cable of this utility model is 50m-3000m with the volume length of poly tetrafluoroethylene 1, thickness is 0.03mm-0.3mm, described power cable is that the thickness deviation of 50m-1000m is ± 0.003mm with poly tetrafluoroethylene 1 volume length, and described power cable is that the thickness deviation of 1000m-2000m is ± 0.004mm with poly tetrafluoroethylene 1 volume length.Described power cable is that the thickness deviation of 2000m-3000m is ± 0.005mm with poly tetrafluoroethylene 1 volume length.
Described power cable is 1.5-1.6g/cm3 with the density of poly tetrafluoroethylene 1, and the density tolerance is ± 0.03g/cm3.
Described power cable radially is at least 15MPa with the tensile strength of poly tetrafluoroethylene 1, and broadwise is at least 2.5MPa.
Claims (5)
1. power cable poly tetrafluoroethylene, it is characterized in that described power cable is 50m-3000m with the volume length of poly tetrafluoroethylene (1), thickness is 0.03mm-0.3mm, and density is 1.5-1.6g/cm3, tensile strength radially is at least 15MPa, and broadwise is at least 2.5MPa.
2. power cable poly tetrafluoroethylene according to claim 1 is characterized in that described power cable with the long thickness deviation for 50m-1000m of poly tetrafluoroethylene (1) volume is ± 0.003mm.
3. power cable poly tetrafluoroethylene according to claim 1 is characterized in that described power cable with the long thickness deviation for 1000m-2000m of poly tetrafluoroethylene (1) volume is ± 0.004mm.
4. power cable poly tetrafluoroethylene according to claim 1 is characterized in that described power cable with the long thickness deviation for 2000m-3000m of poly tetrafluoroethylene (1) volume is ± 0.005mm.
5. power cable poly tetrafluoroethylene according to claim 1 is characterized in that described power cable with the density tolerance of poly tetrafluoroethylene (1) is ± 0.03g/cm3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203775766U CN202711884U (en) | 2012-08-01 | 2012-08-01 | Polytetrafluoroethylene film for electric power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203775766U CN202711884U (en) | 2012-08-01 | 2012-08-01 | Polytetrafluoroethylene film for electric power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202711884U true CN202711884U (en) | 2013-01-30 |
Family
ID=47592164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203775766U Expired - Lifetime CN202711884U (en) | 2012-08-01 | 2012-08-01 | Polytetrafluoroethylene film for electric power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202711884U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219107A (en) * | 2012-08-01 | 2013-07-24 | 上海市凌桥环保设备厂有限公司 | Polytetrafluoroethylene film for electric power cable |
| WO2015067326A1 (en) | 2013-11-08 | 2015-05-14 | Saint-Gobain Performance Plastics Corporation | Articles containing ptfe having improved dimensional stability particularly over long lengths, methods for making such articles, and cable/wire assemblies containing such articles |
-
2012
- 2012-08-01 CN CN2012203775766U patent/CN202711884U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219107A (en) * | 2012-08-01 | 2013-07-24 | 上海市凌桥环保设备厂有限公司 | Polytetrafluoroethylene film for electric power cable |
| WO2015067326A1 (en) | 2013-11-08 | 2015-05-14 | Saint-Gobain Performance Plastics Corporation | Articles containing ptfe having improved dimensional stability particularly over long lengths, methods for making such articles, and cable/wire assemblies containing such articles |
| US10066033B2 (en) | 2013-11-08 | 2018-09-04 | Saint-Gobain Performance Plastics Corporation | Articles containing PTFE having improved dimensional stability particularly over long lengths, methods for making such articles, and cable/wire assemblies containing such articles |
| US10472432B2 (en) | 2013-11-08 | 2019-11-12 | Saint-Gobain Performance Plastics Corporation | Articles containing PTFE having improved dimensional stability particularly over long lengths, methods for making such articles, and cable/wire assemblies containing such articles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |