CN203787193U - Lightning-protection power cable - Google Patents
Lightning-protection power cable Download PDFInfo
- Publication number
- CN203787193U CN203787193U CN201420028078.XU CN201420028078U CN203787193U CN 203787193 U CN203787193 U CN 203787193U CN 201420028078 U CN201420028078 U CN 201420028078U CN 203787193 U CN203787193 U CN 203787193U
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- China
- Prior art keywords
- wires
- wire
- main traverse
- inner sheath
- lightning
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Abstract
The utility model discloses a lightning-protection power cable. The cable comprises a plurality of main wires, and a plurality of auxiliary wires. One of the main wires is a signal transmission wire. Each of the power transmission main wires and the auxiliary wires is composed of a plurality of stranded conductive wire cores, and polymeric material coating the conductive wire cores. The signal transmission main wire includes four signal transmission sub wires, optical fibers which are at least partially arranged in gaps among the sub wires, and flexible strip arranged in a gap formed by the four signal transmission sub wires. The sub wire is composed of a plurality of signal transmission core wires, and a shielding layer made of shielding material and coating the signal transmission core wires. The sub wires and the optical fibers are coated by polymeric material. Gaps among the main wires and the auxiliary wires are filled with insulating material, and the main wires, the auxiliary wires, and the insulating material are coated into a whole. An inner sheath is arranged on the outer side of the insulating layer. A shielding layer is arranged on the outer side of the inner sheath. A protection jacket is arranged on the outer side of the shielding layer. A grounding layer formed by a plurality of aluminium wires slantingly wrapping the inner sheath is arranged between the shielding layer and the inner sheath.
Description
Technical field
The utility model relates to power cable technical field, relates in particular to a kind of lightning-proof power cable.
Background technology
Because China's economy grows continuously and fast, cause supply of electric power very nervous, cause power infrastructures investment construction climax, cable is widely used in electric power network.The applied environment complexity of cable is various, and partial cables is laid on height or mountain area, work under bad environment, and easily suffer the invasion and attack of thunder and lightning weather.Because cable is likely struck by lightning, once the thunderbolt time occurs, will cause the heavy losses of electric power facility.In addition, in electrical network, need to use respectively different cable transmission electric power and signal of communication at present, not only lay trouble, and increase the expense of using cable in power grid construction.
Utility model content
In order to solve the technical problem existing in background technology, the utility model proposes a kind of lightning-proof power cable, realized the comprehensive transmission of electric power and signal of communication, it is simple in structure, and lightning protection capability is strong.
A kind of lightning-proof power cable the utility model proposes, comprise: many main traverse lines and Duo Gen pilot wire, in main traverse line, there is one for signal transmission wire, all the other main traverse lines are electric power transmission lead, in electric power transfer main traverse line and pilot wire, be equipped with the many polymeric materials that are wound around each other the conductor wire core of twisting and wrap up above-mentioned conductor wire core, signal transmits main traverse line and comprises that four signals transmit time wire, at least part of optical fiber in interstitial space between inferior wire and the flexible lines that are positioned at four common interstitial space China that form of signals transmission time wires, inferior wire comprises that many signals transmit heart yearn and parcel signal transmits the screen of the shielding material formation of heart yearn, inferior wire and optical fiber are wrapped up by polymeric material, main traverse line and pilot wire are integrated by filling insulating material parcel, insulating material periphery is inner sheath, inner sheath periphery has screen, screen periphery is protection overcoat, between screen and inner sheath, be provided with the ground plane being formed by the many wrapped inner sheaths of aluminum steel oblique line, wherein, above-mentioned aluminum steel is arranged in parallel with each other, flexible lines and signal transmit main traverse line and coaxially arrange.
Preferably, the axial axis that signal transmits four signal transmission time wires in the main traverse line layout that is square.
Preferably, main traverse line quantity is three, and the axial axis of three main traverse lines is equilateral triangle arranges, pilot wire at least part of between main traverse line in interstitial space.
Preferably, the lay of lapping that forms the aluminum steel of ground plane be inner sheath external diameter 10-15 doubly.
Preferably, the polyolefine material that interior pad sheath adopts, its raw material components is: ethylene-vinyl acetate copolymer, 60-80 part; High density polyethylene (HDPE), 20-30 part; Ethylene propylene diene rubber, 15-25 part; Four seasons Doutrate, 3-5 part; Calcium stearate, 3-5 part; Silane coupler, 3-5 part; Aluminium hydroxide, 20-30 part; Trihydroxy methyl propane trimethyl acrylate, 10-15 part; Firebrake ZB, 5-10 part; Paris white, 5-10 part; Peroxidating two alkane, 3-5 part; Titanate esters, 1-2 part; Paraffin, 0.3-0.6 part, wherein, the ethylene-vinyl acetate copolymer that the ethylene-vinyl acetate copolymer that ethylene-vinyl acetate copolymer is 18% by vinyl acetate content and vinyl acetate content are 28% forms, and both ratios are 10:1.
In the utility model, the axial axis of three main traverse lines is equilateral triangle arranges, is difficult for mobile under pressure, under this condition, less pilot wire is more difficult to suffer damage, simultaneously, the setting of inner sheath and protection overcoat, has further strengthened the protection to Internal cable; By in main traverse line one be set as signal and transmit wire, can realize the comprehensive transmission of electric power and signal of communication, and the setting of pilot wire at least part of between main traverse line in interstitial space, when power transmission capacity is compensated, can improve the utilization ratio in space in cable; Between inner sheath and screen, by the wrapped ground plane forming of aluminum steel oblique line, can effectively conduct instantaneous high pressure, avoid thunder and lightning to cause damage to cable and the power equipment that is connected with cable; Inferior wire comprises that many signals transmit heart yearn and parcel signal transmits the screen of the shielding material formation of heart yearn, thereby can effectively prevent between homogeneous wire, not producing signal disturbs, inferior wire and optical fiber are wrapped up by polymeric material, can protect inferior wire and optical fiber, and arranging of flexible lines can effectively promote the bending property that signal transmits wire; Inner sheath is as the guard member to inner core-wire cable, by adopting the polyolefine material of above-mentioned raw materials component to make, can effectively defend ultraviolet injury, and can resist cold, and can extend the useful life of cable under low temperature environment; Wherein, the ethylene-vinyl acetate copolymer composition that the ethylene-vinyl acetate copolymer that ethylene-vinyl acetate copolymer employing vinyl acetate content is 18% and vinyl acetate content are 28%, under the effect of trihydroxy methyl propane trimethyl acrylate, can promote ultraviolet defence capability.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of lightning-proof power cable that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of lightning-proof power cable that the utility model proposes.
With reference to Fig. 1, a kind of lightning-proof power cable the utility model proposes, comprise: three main traverse lines 1 and three pilot wires 2, the axial axis of three main traverse lines 1 is equilateral triangle and arranges, pilot wire 2 at least part of between main traverse line 1 in interstitial space, in main traverse line 1, there is one for signal transmission wire, all the other main traverse lines 1 are electric power transmission lead, in electric power transfer main traverse line 1 and pilot wire 2, be equipped with the many polymeric materials that are wound around each other the conductor wire core of twisting and wrap up above-mentioned conductor wire core, signal transmits main traverse line 1 and comprises that four signals transmit time wire 3, at least part of optical fiber in interstitial space between inferior wire 34 and the flexible lines 5 that are arranged in four signals transmission time wires 3 common interstitial spaces that form, the axial axis that signal transmits four signal transmission time wires 3 in main traverse line 1 layout that is square, inferior wire 3 comprises that many signals transmit heart yearn and parcel signal transmits the screen of the shielding material formation of heart yearn, inferior wire 3 and optical fiber 4 are wrapped up by polymeric material, main traverse line 1 and pilot wire 2 are filled and are wrapped up by insulating material 6 and be integrated, insulating material 6 peripheries are inner sheath 7, inner sheath 7 peripheries have screen 9, screen 9 peripheries are protection overcoat 10, between screen 9 and inner sheath 7, be provided with the ground plane 8 being formed by the many wrapped inner sheaths 7 of aluminum steel oblique line, the lay of lapping that forms the aluminum steel of ground plane 8 is 10-15 times of inner sheath 7 external diameters, wherein, above-mentioned aluminum steel is arranged in parallel with each other, flexible lines 5 transmit main traverse line 1 with signal and coaxially arrange.
In technique scheme, the axial axis of three main traverse lines 1 is equilateral triangle arranges, is difficult for mobile under pressure, under this condition, less more difficult the suffering damage of pilot wire 2, simultaneously, the setting of inner sheath 7 and protection overcoat 10, has further strengthened the protection to Internal cable; By in main traverse line 1 one be set as signal and transmit wire, can realize the comprehensive transmission of electric power and signal of communication, and the setting of pilot wire 2 at least part of between main traverse line 1 in interstitial space, when power transmission capacity is compensated, can improve the utilization ratio in space in cable; Between inner sheath 7 and screen 9, by the wrapped ground plane forming 8 of aluminum steel oblique line, can effectively conduct instantaneous high pressure, avoid thunder and lightning to cause damage to cable and the power equipment that is connected with cable; Inferior wire 3 comprises that many signals transmit heart yearn and parcel signal transmits the screen of the shielding material formation of heart yearn; thereby can effectively prevent between homogeneous wire 3, not producing signal disturbs; inferior wire 3 and optical fiber 4 are wrapped up by polymeric material; can protect with optical fiber 4 inferior wire 3, and arranging of flexible lines 5 can effectively promote the bending property that signal transmits wire.
In the present embodiment, the polyolefine material that interior pad sheath adopts, its raw material components is: ethylene-vinyl acetate copolymer, 72 parts; High density polyethylene (HDPE), 23 parts; Ethylene propylene diene rubber, 21 parts; Four seasons Doutrate, 4 parts; Calcium stearate, 3 parts; Silane coupler, 5 parts; Aluminium hydroxide, 27 parts; Trihydroxy methyl propane trimethyl acrylate, 12 parts; Firebrake ZB, 7 parts; Paris white, 6 parts; Peroxidating two alkane, 5 parts; Titanate esters, 1.3 parts; Paraffin, 0.4 part, wherein, the ethylene-vinyl acetate copolymer that the ethylene-vinyl acetate copolymer that ethylene-vinyl acetate copolymer is 18% by vinyl acetate content and vinyl acetate content are 28% forms, and both ratios are 10:1.
Inner sheath 7, as the guard member to inner core-wire cable, by adopting the polyolefine material of above-mentioned raw materials component to make, can effectively be defendd ultraviolet injury, and can resist cold, and can extend the useful life of cable under low temperature environment; Wherein, the ethylene-vinyl acetate copolymer composition that the ethylene-vinyl acetate copolymer that ethylene-vinyl acetate copolymer employing vinyl acetate content is 18% and vinyl acetate content are 28%, under the effect of trihydroxy methyl propane trimethyl acrylate, can promote ultraviolet defence capability.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection range of the present utility model.
Claims (4)
1. a lightning-proof power cable, it is characterized in that, comprise: many main traverse lines (1) and many pilot wires (2), in main traverse line (1), there is one for signal transmission wire, all the other main traverse lines (1) are electric power transmission lead, in electric power transfer main traverse line (1) and pilot wire (2), be equipped with the many polymeric materials that are wound around each other the conductor wire core of twisting and wrap up above-mentioned conductor wire core, signal transmits main traverse line (1) and comprises that four signals transmit time wire (3), at least part of optical fiber (4) that is arranged in interstitial space between time wire (3) and be arranged in the flexible lines (5) that four signals transmit the interstitial spaces of the common formation of time wires (3), inferior wire (3) comprises that many signals transmit heart yearn and parcel signal transmits the screen of the shielding material formation of heart yearn, inferior wire (3) and optical fiber (4) are wrapped up by polymeric material, main traverse line (1) and pilot wire (2) are filled and are wrapped up by insulating material (6) and be integrated, insulating material (6) periphery is inner sheath (7), inner sheath (7) periphery has screen (9), screen (9) periphery is protection overcoat (10), between screen (9) and inner sheath (7), be provided with the ground plane (8) being formed by the many wrapped inner sheaths of aluminum steel oblique line (7), wherein, above-mentioned aluminum steel is arranged in parallel with each other, flexible lines (5) transmit main traverse line (1) with signal and coaxially arrange.
2. lightning-proof power cable according to claim 1, is characterized in that, signal transmits in main traverse line (1) axial axis that four signals transmit time wires (3) layout that is square.
3. lightning-proof power cable according to claim 1, it is characterized in that, main traverse line (1) quantity is three, and the axial axis of three main traverse lines (1) is equilateral triangle arranges, pilot wire (2) is at least part of is arranged in interstitial space between main traverse line (1).
4. lightning-proof power cable according to claim 1, is characterized in that, the lay of lapping that forms the aluminum steel of ground plane (8) is 10-15 times of inner sheath (7) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028078.XU CN203787193U (en) | 2014-01-16 | 2014-01-16 | Lightning-protection power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028078.XU CN203787193U (en) | 2014-01-16 | 2014-01-16 | Lightning-protection power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787193U true CN203787193U (en) | 2014-08-20 |
Family
ID=51323354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420028078.XU Expired - Fee Related CN203787193U (en) | 2014-01-16 | 2014-01-16 | Lightning-protection power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787193U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794288A (en) * | 2014-01-16 | 2014-05-14 | 安徽国华电缆集团有限公司 | Anti-lightning power cable |
| US9093194B2 (en) | 2009-07-16 | 2015-07-28 | 3M Innovative Properties Company | Insulated composite power cable and method of making and using same |
-
2014
- 2014-01-16 CN CN201420028078.XU patent/CN203787193U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9093194B2 (en) | 2009-07-16 | 2015-07-28 | 3M Innovative Properties Company | Insulated composite power cable and method of making and using same |
| CN103794288A (en) * | 2014-01-16 | 2014-05-14 | 安徽国华电缆集团有限公司 | Anti-lightning power cable |
| CN103794288B (en) * | 2014-01-16 | 2016-06-01 | 安徽国华电缆集团有限公司 | A kind of lightning-proof power cable |
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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: 20140820 Termination date: 20170116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |