CN103794288B - A kind of lightning-proof power cable - Google Patents
A kind of lightning-proof power cable Download PDFInfo
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- CN103794288B CN103794288B CN201410022254.3A CN201410022254A CN103794288B CN 103794288 B CN103794288 B CN 103794288B CN 201410022254 A CN201410022254 A CN 201410022254A CN 103794288 B CN103794288 B CN 103794288B
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Abstract
The present invention discloses a kind of lightning-proof power cable, comprise: many leading lines and Duo Gen auxiliary traverse, leading line has one for signal transmission wire, electric power transmission lead and auxiliary traverse are equipped with many be wound around the conductor wire core of twisting each other and wrap up the polymeric material of above-mentioned conductor wire core, signal transmission wire comprises four signal transmission time wire, at least part of optical fiber in pore space between secondary wire and the flexible lines being arranged in the pore space that four signal transmission time wire is formed jointly, secondary wire comprises the screen layer that the shielding material of many signal transmission heart yearns and parcel signal transmission heart yearn is formed, secondary wire and optical fiber are wrapped up by polymeric material, leading line and auxiliary traverse are by filling insulating material and wrap up and being integrated, insulating material periphery is interior sheath, interior sheath periphery has screen layer, screen layer periphery is protection overcoat, the ground connection layer being made up of the many wrapped interior sheaths of aluminum steel oblique line it is provided with between screen layer and interior sheath.
Description
Technical field
The present invention relates to power cable technical field, particularly relate to a kind of lightning-proof power cable.
Background technology
Owing to China's economy grows continuously and fast, causing supply of electric power very nervous, cause power infrastructures investment construction climax, cable widely uses in electric power network. The applied environment complexity of cable is various, and partial cables is laid on highland or mountain area, work under bad environment, and easily suffers the invasion and attack of thunder and lightning weather. Owing to cable is likely struck by lightning, once thunderbolt event occurs, the heavy losses of electric power facility will be caused. In addition, current electrical network needs use different cable transmission electric power and the signal that communicates respectively, not only lay trouble, and increase the expense using cable in power grid construction.
Summary of the invention
The technical problem existed to solve in background technology, the present invention proposes a kind of lightning-proof power cable, it is achieved that the comprehensive transmission of electric power and the signal that communicates, and simply, lightning protection capability is strong for its structure.
A kind of lightning-proof power cable that the present invention proposes, comprise: many leading lines and Duo Gen auxiliary traverse, leading line has one for signal transmission wire, all the other leading lines are electric power transmission lead, electric power transmission lead and auxiliary traverse are equipped with many be wound around the conductor wire core of twisting each other and wrap up the polymeric material of above-mentioned conductor wire core, signal transmission wire comprises four signal transmission time wire, at least part of optical fiber in pore space between secondary wire and the flexible lines being positioned at the pore space China that four signal transmission time wire is formed jointly, secondary wire comprises the screen layer that the shielding material of many signal transmission heart yearns and parcel signal transmission heart yearn is formed, secondary wire and optical fiber are wrapped up by polymeric material, leading line and auxiliary traverse are by filling insulating material and wrap up and being integrated, insulating material periphery is interior sheath, interior sheath periphery has screen layer, screen layer periphery is protection overcoat, the ground connection layer being made up of the many wrapped interior sheaths of aluminum steel oblique line it is provided with between screen layer and interior sheath, wherein, above-mentioned aluminum steel is arranged in parallel with each other, flexible lines and signal transmission wire are coaxially arranged.
Preferably, in signal transmission wire, the axial axis of four signal transmission time wires is square layout.
Preferably, main number of conductors is three, and the axial axis of three leading lines is that equilateral triangle is arranged, auxiliary traverse at least part of between leading line in pore space.
Preferably, the wrapped pitch forming the aluminum steel of ground connection layer is 10-15 times of interior sheath external diameter.
Preferably, the polyolefine material that interior sheath adopts, its feed composition is: ethylene-vinyl acetate copolymer, 60-80 part; High density polyethylene(HDPE), 20-30 part; Terpolymer EP rubber, 15-25 part; Pentaerythritol tetrathioglycollate, 3-5 part; Calcium stearate, 3-5 part; Silane coupling agent, 3-5 part; Aluminium hydroxide, 20-30 part; Trihydroxy methyl propane trimethyl acrylate, 10-15 part; Zinc borate, 5-10 part; Paris white, 5-10 part; Peroxidation two alkane, 3-5 part; Titanic acid ester, 1-2 part; Paraffin, 0.3-0.6 part, wherein, ethylene-vinyl acetate copolymer by vinyl acetate content be 18% ethylene-vinyl acetate copolymer and vinyl acetate content be 28% ethylene-vinyl acetate copolymer form, and both ratios are 10:1.
In the present invention, the axial axis of three leading lines is that equilateral triangle is arranged, not easily moves under stress, under this condition, less auxiliary traverse is more difficult to be damaged, simultaneously, the setting of interior sheath and protection overcoat, further enhances the protection to Internal cable; It is set as signal transmission wire by leading line one, the comprehensive transmission of electric power with the signal that communicates can be realized, and the setting of auxiliary traverse and at least part of between leading line in pore space, while power transmission capacity is compensated, it is possible to improve the utilising efficiency in space in cable; Between interior sheath and screen layer, can effectively conduct instantaneous high pressure by the wrapped ground connection layer formed of aluminum steel oblique line, avoid thunder and lightning that cable and the power equipment that is connected with cable are caused infringement; Secondary wire comprises the screen layer that the shielding material of many signal transmission heart yearns and parcel signal transmission heart yearn is formed, such that it is able to effectively prevent from producing signal disturbing between different time wire, secondary wire and optical fiber are wrapped up by polymeric material, secondary wire and optical fiber can be protected, and arranging of flexible lines effectively can transmit the bending property of wire by promotion signal; Interior sheath, as the guard member to internal core cable, by adopting the polyolefine material of above-mentioned raw materials component to make, it is possible to the effectively ultraviolet injury of defence, and can resist cold, it is possible to prolongation cable work-ing life at low ambient temperatures; Wherein, ethylene-vinyl acetate copolymer adopt vinyl acetate content be 18% ethylene-vinyl acetate copolymer and vinyl acetate content be 28% ethylene-vinyl acetate copolymer composition, under the effect of trihydroxy methyl propane trimethyl acrylate, it is possible to promote ultraviolet defence capability.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of lightning-proof power cable that the present invention proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of lightning-proof power cable that the present invention proposes.
With reference to Fig. 1, a kind of lightning-proof power cable that the present invention proposes, comprise: three leading lines 1 and three auxiliary traverses 2, the axial axis of three leading lines 1 is that equilateral triangle is arranged, auxiliary traverse 2 at least part of between leading line 1 in pore space, leading line 1 has one for signal transmission wire, all the other leading lines 1 are electric power transmission lead, electric power transmission lead 1 and auxiliary traverse 2 are equipped with many be wound around the conductor wire core of twisting each other and wrap up the polymeric material of above-mentioned conductor wire core, signal transmission wire 1 comprises four signal transmission time wire 3, at least part of optical fiber 4 in pore space between secondary wire 3 and the flexible lines 5 being arranged in the pore space that four signal transmission time wire 3 is formed jointly, in signal transmission wire 1, the axial axis of four signal transmission time wires 3 is square layout, secondary wire 3 comprises the screen layer that the shielding material of many signal transmission heart yearns and parcel signal transmission heart yearn is formed, secondary wire 3 and optical fiber 4 are wrapped up by polymeric material, leading line 1 and auxiliary traverse 2 are filled by insulating material 6 and are wrapped up and being integrated, insulating material 6 periphery is interior sheath 7, interior sheath 7 periphery has screen layer 9, screen layer 9 periphery is protection overcoat 10, the ground connection layer 8 being made up of the many wrapped interior sheaths 7 of aluminum steel oblique line it is provided with between screen layer 9 and interior sheath 7, the wrapped pitch of the aluminum steel of composition ground connection layer 8 is 10-15 times of interior sheath 7 external diameter, wherein, above-mentioned aluminum steel is arranged in parallel with each other, flexible lines 5 are coaxially arranged with signal transmission wire 1.
In technique scheme, the axial axis of three leading lines 1 is that equilateral triangle is arranged, not easily moves under stress, under this condition, less auxiliary traverse 2 is more difficult to be damaged, simultaneously, the setting of interior sheath 7 and protection overcoat 10, further enhances the protection to Internal cable; It is set as signal transmission wire by leading line 1 one, the comprehensive transmission of electric power with the signal that communicates can be realized, and the setting of auxiliary traverse 2 and at least part of between leading line 1 in pore space, while power transmission capacity is compensated, it is possible to improve the utilising efficiency in space in cable; Between interior sheath 7 and screen layer 9, can effectively conduct instantaneous high pressure by the wrapped ground connection layer 8 formed of aluminum steel oblique line, avoid thunder and lightning that cable and the power equipment that is connected with cable are caused infringement; Secondary wire 3 comprises the screen layer that the shielding material of many signal transmission heart yearns and parcel signal transmission heart yearn is formed; such that it is able to effectively prevent from producing signal disturbing between different time wire 3; secondary wire 3 and optical fiber 4 are wrapped up by polymeric material; secondary wire 3 can be protected with optical fiber 4, and arranging of flexible lines 5 effectively can transmit the bending property of wire by promotion signal.
In the present embodiment, the polyolefine material that interior sheath adopts, its feed composition is: ethylene-vinyl acetate copolymer, 72 parts; High density polyethylene(HDPE), 23 parts; Terpolymer EP rubber, 21 parts; Pentaerythritol tetrathioglycollate, 4 parts; Calcium stearate, 3 parts; Silane coupling agent, 5 parts; Aluminium hydroxide, 27 parts; Trihydroxy methyl propane trimethyl acrylate, 12 parts; Zinc borate, 7 parts; Paris white, 6 parts; Peroxidation two alkane, 5 parts; Titanic acid ester, 1.3 parts; Paraffin, 0.4 part, wherein, ethylene-vinyl acetate copolymer by vinyl acetate content be 18% ethylene-vinyl acetate copolymer and vinyl acetate content be 28% ethylene-vinyl acetate copolymer form, and both ratios are 10:1.
Interior sheath 7, as the guard member to internal core cable, by adopting the polyolefine material of above-mentioned raw materials component to make, it is possible to the effectively ultraviolet injury of defence, and can resist cold, it is possible to prolongation cable work-ing life at low ambient temperatures; Wherein, ethylene-vinyl acetate copolymer adopt vinyl acetate content be 18% ethylene-vinyl acetate copolymer and vinyl acetate content be 28% ethylene-vinyl acetate copolymer composition, under the effect of trihydroxy methyl propane trimethyl acrylate, it is possible to promote ultraviolet defence capability.
The above; it is only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; any it is familiar with those skilled in the art in the technical scope that the present invention discloses; technical scheme and invention design thereof according to the present invention are equal to replacement or are changed, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. a lightning-proof power cable, it is characterized in that, comprise: many leading lines (1) and many auxiliary traverses (2), leading line (1) has one for signal transmission wire, all the other leading lines (1) are electric power transmission lead, electric power transmission lead and auxiliary traverse (2) are equipped with many be wound around the conductor wire core of twisting each other and wrap up the polymeric material of above-mentioned conductor wire core, signal transmission wire comprises four signal transmission time wire (3), at least part of optical fiber (4) being arranged in pore space between time wire (3) and be arranged in the flexible lines (5) of the pore space of the common formation of four signal transmission time wire (3), secondary wire (3) comprises the screen layer that the shielding material of many signal transmission heart yearns and parcel signal transmission heart yearn is formed, secondary wire (3) and optical fiber (4) are wrapped up by polymeric material, leading line (1) and auxiliary traverse (2) are filled by insulating material (6) and are wrapped up and being integrated, insulating material (6) periphery is interior sheath (7), the polyolefine material that interior sheath (7) adopts, its feed composition is: ethylene-vinyl acetate copolymer, 60-80 part, high density polyethylene(HDPE), 20-30 part, terpolymer EP rubber, 15-25 part, pentaerythritol tetrathioglycollate, 3-5 part, calcium stearate, 3-5 part, silane coupling agent, 3-5 part, aluminium hydroxide, 20-30 part, trihydroxy methyl propane trimethyl acrylate, 10-15 part, zinc borate, 5-10 part, Paris white, 5-10 part, peroxidation two alkane, 3-5 part, titanic acid ester, 1-2 part, paraffin, 0.3-0.6 part, wherein, ethylene-vinyl acetate copolymer by vinyl acetate content be 18% ethylene-vinyl acetate copolymer and vinyl acetate content be 28% ethylene-vinyl acetate copolymer form, and both ratios are 10:1, interior sheath (7) periphery has screen layer (9), screen layer (9) periphery is protection overcoat (10), the ground connection layer (8) being made up of the many wrapped interior sheaths (7) of aluminum steel oblique line it is provided with between screen layer (9) and interior sheath (7), wherein, above-mentioned aluminum steel is arranged in parallel with each other, and flexible lines (5) are coaxially arranged with signal transmission wire.
2. lightning-proof power cable according to claim 1, it is characterised in that, in signal transmission wire, the axial axis of four signal transmission time wires (3) is square layout.
3. lightning-proof power cable according to claim 1, it is characterized in that, leading line (1) quantity is three, the axial axis of three leading lines (1) is that equilateral triangle is arranged, what auxiliary traverse (2) was at least part of is arranged in pore space between leading line (1).
4. lightning-proof power cable according to claim 1, it is characterised in that, the wrapped pitch of the aluminum steel of composition ground connection layer (8) is 10-15 times of interior sheath (7) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022254.3A CN103794288B (en) | 2014-01-16 | 2014-01-16 | A kind of lightning-proof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022254.3A CN103794288B (en) | 2014-01-16 | 2014-01-16 | A kind of lightning-proof power cable |
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| Publication Number | Publication Date |
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| CN103794288A CN103794288A (en) | 2014-05-14 |
| CN103794288B true CN103794288B (en) | 2016-06-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8957312B2 (en) | 2009-07-16 | 2015-02-17 | 3M Innovative Properties Company | Submersible composite cable and methods |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030168229A1 (en) * | 2002-03-05 | 2003-09-11 | Whidden Robert H. | Method of transmitting electrical power |
| CN101499330A (en) * | 2008-02-01 | 2009-08-05 | 普拉德研究及开发股份有限公司 | Cable |
| CN101887780A (en) * | 2009-05-11 | 2010-11-17 | 中利科技集团股份有限公司 | Multigroup lightning protection optical cable |
| CN202534423U (en) * | 2012-05-10 | 2012-11-14 | 河南科信电缆有限公司 | Lightning-protection carbon fiber photoelectric composite conducting wire |
| CN203338868U (en) * | 2013-07-01 | 2013-12-11 | 中利科技集团股份有限公司 | Lightning protection cable for communication base station |
| CN203787193U (en) * | 2014-01-16 | 2014-08-20 | 安徽国华电缆集团有限公司 | Lightning-protection power cable |
-
2014
- 2014-01-16 CN CN201410022254.3A patent/CN103794288B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030168229A1 (en) * | 2002-03-05 | 2003-09-11 | Whidden Robert H. | Method of transmitting electrical power |
| CN101499330A (en) * | 2008-02-01 | 2009-08-05 | 普拉德研究及开发股份有限公司 | Cable |
| CN101887780A (en) * | 2009-05-11 | 2010-11-17 | 中利科技集团股份有限公司 | Multigroup lightning protection optical cable |
| CN202534423U (en) * | 2012-05-10 | 2012-11-14 | 河南科信电缆有限公司 | Lightning-protection carbon fiber photoelectric composite conducting wire |
| CN203338868U (en) * | 2013-07-01 | 2013-12-11 | 中利科技集团股份有限公司 | Lightning protection cable for communication base station |
| CN203787193U (en) * | 2014-01-16 | 2014-08-20 | 安徽国华电缆集团有限公司 | Lightning-protection power cable |
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| CN103794288A (en) | 2014-05-14 |
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Effective date of registration: 20191127 Address after: No. 383, Dongxi team, Xinjian village, jiaoganghu Town, Fengtai County, Huainan City, Anhui Province Patentee after: Dong Qiongqiong Address before: 238339 Anhui city of Wuhu province Wuwei County Gaogou Industrial Park Patentee before: ANHUI GUOHUA CABLE GROUP CO., LTD. |
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Effective date of registration: 20191211 Address after: 239300 Anhui city of Chuzhou province Tianchang Xicheng District Tiankang Avenue Patentee after: ANHUI RUILAIER INSTRUMENT CO., LTD. Address before: No. 383, Dongxi team, Xinjian village, jiaoganghu Town, Fengtai County, Huainan City, Anhui Province Patentee before: Dong Qiongqiong |
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