CN105976936A - Improved-type multilayer PVC insulating power cable - Google Patents
Improved-type multilayer PVC insulating power cable Download PDFInfo
- Publication number
- CN105976936A CN105976936A CN201610498909.3A CN201610498909A CN105976936A CN 105976936 A CN105976936 A CN 105976936A CN 201610498909 A CN201610498909 A CN 201610498909A CN 105976936 A CN105976936 A CN 105976936A
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- CN
- China
- Prior art keywords
- pvc
- thickness
- cable
- cable core
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses an improved-type multilayer PVC insulating power cable, and the cable comprises a cable core. The center of the cable core is provided with a PVC insulator, and the upper and lower and left and right arc edges of the PVC insulator are respectively provided with a group of insulating wire cores and a group of control wire cores in a pasting manner, wherein the insulating wire cores and the control wire cores are twisted to form the cable core. A gap of the cable is provided with glass silks, and the exterior of the cable core is provided with a second PVC insulating layer with the thickness from 0.25mm to 0.30mm. The exterior of the second PVC insulating layer is provided with a PVC internal sheath layer with the thickness from 1cm to 2cm, and the exterior of a PVC shielding layer is provided with a third PVC insulating with the thickness from 0.25 to 0.30. Finally, the exterior of the cable core is provided with an aluminum sheath with the thickness from 2cm to 3cm. Compared with the prior art, the cable is advantageous in that only a little of outer color insulation needs to be changed for wires with different colors during production, and effectively reduces the waste, caused by color replacement, of insulating materials during production.
Description
Technical field
The present invention relates to power cable field, refer in particular to a kind of improved multilayer PVC insulated power cable.
Background technology
Development along with society, electric wire is as transmission electric energy and the blood vessel of information, in today that building industry is fast-developing, quality and the safety of building wire increasingly come into one's own, tradition electric wire uses single layer dielectrics version, and adds the pigment of different colours in insulant, is user-friendly to distinguishing different phase lines, adding pigment in insulation causes the electric wire electric property of different colours incomplete same, frequently changes color and cause again a large amount of insulant to be wasted in production process.
Summary of the invention
The technical problem to be solved there is provided a kind of improved multilayer PVC insulated power cable.
A kind of improved multilayer PVC insulated power cable of the present invention, including cable core, described cable core bosom is provided with PVC insulator, four arc limits up and down of PVC insulator is stained with one group of symmetrical insulated wire cores and one group of control conductor respectively, and is twisted into cable core；It is provided with glass fiber in the gap of cable core, it is externally provided with the 2nd PVC insulating barrier that thickness is 0.25-0.30mm at cable core, the PVC sheath that thickness is 1-2cm is extruded outside 2nd PVC insulating barrier, PVC screen layer is externally provided with the 3rd PVC insulating barrier that thickness is 0.25-0.30, is finally externally provided with, at cable core, the aluminium sheath that thickness is 2-3cm.
Improving further, described insulated wire cores is by the steel wire strengthening core being arranged on a diameter of 1-2cm in bosom, constitute around a diameter of 3-4cm aluminium alloy conductor wrapped in outside steel wire strengthening core, the PVC insulating barrier that thickness is 3-6mm that is extruded in outside aluminium alloy conductor and the screen layer that thickness is 2-4mm that is extruded in outside a PVC insulating barrier.
Improving further, described insulated wire cores is by the steel wire strengthening core being arranged on a diameter of 1-2cm in bosom, constitute around a diameter of 3-4cm aluminium alloy conductor wrapped in outside steel wire strengthening core, the PVC insulating barrier that thickness is 3-6mm that is extruded in outside aluminium alloy conductor and the screen layer that thickness is 2-4mm that is extruded in outside a PVC insulating barrier.
Compared with prior art, the beneficial effects of the present invention is:
1, the core of the present invention is pasted on centremost PVC insulator, not only secures core so that core is not susceptible to displacement, also acts and fills the effect reinforced so that the rounding property of cable is more preferable；
2, the filling of the present invention uses glass fiber, and glass fiber is inorganic matter, does not burns, and will not produce harmful substance.
3, oversheath of the present invention is that metallic aluminium is made, and will not burn, even if also will not produce any harmful gas under flame condition, and other layers intercepted in cable are destroyed.
4, being designed with steel wire strengthening core in conductor of the present invention, the stress point of conductor concentrates on the strengthening core of center, and cable, in folding and unfolding winding process, protects conductor, and is not easily broken.
5, the present invention uses multi-layer insulating structure so that the insulating properties of cable exceed 4 times than common cable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of improved multilayer PVC insulated power cable of the present invention, including cable core, described cable core bosom is provided with PVC insulator 1, it is stained with one group of symmetrical insulated wire cores and one group of control conductor on four arc limits up and down of PVC insulator 1 respectively, and is twisted into cable core；Described insulated wire cores is by the steel wire strengthening core 2 being arranged on a diameter of 1-2cm in bosom, constitute around a diameter of 3-4cm aluminium alloy conductor 3 wrapped in outside steel wire strengthening core, the PVC insulating barrier 4 that thickness is 3-6mm that is extruded in outside aluminium alloy conductor and the screen layer that thickness is 2-4mm 5 that is extruded in outside a PVC insulating barrier, and described control conductor is by the steel wire strengthening core being arranged on a diameter of 0.5-1cm in bosom, constitute around a diameter of 2-3cm aluminium alloy conductor wrapped in outside steel wire strengthening core and the PVC insulating barrier that thickness is 2-4mm that is extruded in outside aluminium alloy conductor.
Then, it is provided with glass fiber 6 in the gap of cable core, it is externally provided with the 2nd PVC insulating barrier 7 that thickness is 0.25-0.30mm at cable core, the PVC sheath 8 that thickness is 1-2cm is extruded outside 2nd PVC insulating barrier, PVC screen layer is externally provided with the 3rd PVC insulating barrier 9 that thickness is 0.25-0.30, is finally externally provided with, at cable core, the aluminium sheath 10 that thickness is 2-3cm.
The insulation of the present invention uses double-decker form, and double hyer insulation is again different color composition simultaneously；Inner insulating layer uses true qualities insulation, and external insulation layer uses red, yellow, and green, orchid, the colour such as black；Internal layer uses thicker true qualities insulant, it is ensured that institute's live wire has identical electric property；Outer layer uses relatively thin colored color skin, for distinguishing different phase sequence and the cable in different application place, only need to change little outer layer colorful insulation during production, effectively reduces and changes the insulant waste that color produces when producing.
The invention provides a kind of thinking and the method for improved multilayer PVC insulated power cable; the method and the approach that implement this technical scheme are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.Each component part the clearest and the most definite in the present embodiment all can use prior art to be realized.
Claims (3)
1. an improved multilayer PVC insulated power cable, including cable core, it is characterized in that: described cable core bosom is provided with PVC insulator, four arc limits up and down of PVC insulator are stained with one group of symmetrical insulated wire cores and one group of control conductor respectively, and are twisted into cable core；It is provided with glass fiber in the gap of cable core, it is externally provided with the 2nd PVC insulating barrier that thickness is 0.25-0.30mm at cable core, the PVC sheath that thickness is 1-2cm is extruded outside 2nd PVC insulating barrier, PVC screen layer is externally provided with the 3rd PVC insulating barrier that thickness is 0.25-0.30, is finally externally provided with, at cable core, the aluminium sheath that thickness is 2-3cm.
Improved multilayer PVC insulated power cable the most according to claim 1, it is characterised in that: described insulated wire cores is by the steel wire strengthening core being arranged on a diameter of 1-2cm in bosom, constitute around a diameter of 3-4cm aluminium alloy conductor wrapped in outside steel wire strengthening core, the PVC insulating barrier that thickness is 3-6mm that is extruded in outside aluminium alloy conductor and the screen layer that thickness is 2-4mm that is extruded in outside a PVC insulating barrier.
Improved multilayer PVC insulated power cable the most according to claim 1, it is characterised in that: described control conductor is by the steel wire strengthening core being arranged on a diameter of 0.5-1cm in bosom, constitute around a diameter of 2-3cm aluminium alloy conductor wrapped in outside steel wire strengthening core and the PVC insulating barrier that thickness is 2-4mm that is extruded in outside aluminium alloy conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610498909.3A CN105976936A (en) | 2016-06-30 | 2016-06-30 | Improved-type multilayer PVC insulating power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610498909.3A CN105976936A (en) | 2016-06-30 | 2016-06-30 | Improved-type multilayer PVC insulating power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105976936A true CN105976936A (en) | 2016-09-28 |
Family
ID=56953329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610498909.3A Pending CN105976936A (en) | 2016-06-30 | 2016-06-30 | Improved-type multilayer PVC insulating power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105976936A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199464Y (en) * | 2008-05-08 | 2009-02-25 | 扬州光明电缆有限公司 | Symmetrical control low-smoke non-bittern signal cable for ship |
| JP2014170616A (en) * | 2013-03-01 | 2014-09-18 | J-Power Systems Corp | Optical fiber composite power cable |
| CN104616818A (en) * | 2015-01-30 | 2015-05-13 | 江苏中煤电缆有限公司 | Novel underground coal mine cable for shuttle vehicle |
-
2016
- 2016-06-30 CN CN201610498909.3A patent/CN105976936A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199464Y (en) * | 2008-05-08 | 2009-02-25 | 扬州光明电缆有限公司 | Symmetrical control low-smoke non-bittern signal cable for ship |
| JP2014170616A (en) * | 2013-03-01 | 2014-09-18 | J-Power Systems Corp | Optical fiber composite power cable |
| CN104616818A (en) * | 2015-01-30 | 2015-05-13 | 江苏中煤电缆有限公司 | Novel underground coal mine cable for shuttle vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160928 |