CN204130248U - Earth cable - Google Patents
Earth cable Download PDFInfo
- Publication number
- CN204130248U CN204130248U CN201420451024.4U CN201420451024U CN204130248U CN 204130248 U CN204130248 U CN 204130248U CN 201420451024 U CN201420451024 U CN 201420451024U CN 204130248 U CN204130248 U CN 204130248U
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- cable
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- core
- conductor
- wrapped
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Abstract
The utility model earth cable, comprising: cable core and the refractory insulating layer, layer of polyester fiber, aluminum alloy strip armour, oxygen barrier layer and the galvanized steel strip armouring restrictive coating that are wrapped in successively outside described cable core.Described cable core comprises many cores, and the quantity of described core is 3, and 3 described cores are triangle disposition arrangement; Filler is provided with between described core.Described core comprises and is wrapped in the conductor shield outside conductor, crosslinked polyetylene insulated layer, insulation screen and metal screen layer successively.Described conductor is cellular.Described filler is electro-insulating rubber.The material of described oxygen barrier layer is halogen-free low-smoke high-flame cable material of polyolefin.The cellular conductor of the utility model earth cable farthest utilizes the surface area of honeycomb to increase earial drainage face, makes lightning current bleed off rapidly.And long service life, electric conductivity is excellent, cold-resistant fire-retardant, also has acid-alkali-corrosive-resisting, the advantage of oil resistant simultaneously.
Description
Technical field
The utility model relates to single core earth cable, belongs to electric wire field.
Background technology
In recent years, along with the quick growth, particularly rural area of Chinese national economy, urban distribution network, city capital construction facility and real estate flourish, directly promoted the development of power industry, therefore, the ground connection performance of electric wire had higher requirement.But in the past the research of earth cable is only rested on submarine cable, extra-high-tension cable and telecommunication cable, do not relate to power cable.
The requirement of present equipment to lightning protection is more and more higher, because thunder and lightning belongs to high-frequency current, to equipment produce direct infringement and consequential damages all very serious.The resistance-reducing performance of traditional earth cable is lower, and earthing effect is not fine.
Utility model content
The purpose of this utility model is to provide a kind of earth cable with good earth effect.
For solving the problems of the technologies described above, the utility model earth cable, comprising: cable core and the refractory insulating layer, layer of polyester fiber, aluminum alloy strip armour, oxygen barrier layer and the galvanized steel strip armouring restrictive coating that are wrapped in successively outside described cable core.
Described cable core comprises many cores, and the quantity of described core is 3, and 3 described cores are triangle disposition arrangement; Filler is provided with between described core.
Described core comprises and is wrapped in the conductor shield outside conductor, crosslinked polyetylene insulated layer, insulation screen and metal screen layer successively.
Described conductor is cellular.
Described filler is electro-insulating rubber.
The material of described oxygen barrier layer is halogen-free low-smoke high-flame cable material of polyolefin.
The cellular conductor of the utility model earth cable farthest utilizes the surface area of honeycomb to increase earial drainage face, makes lightning current bleed off rapidly.And long service life, electric conductivity is excellent, cold-resistant fire-retardant, also has acid-alkali-corrosive-resisting, the advantage of oil resistant simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model earth cable cross sectional representation;
Fig. 2 is the utility model earth cable core cross sectional representation.
Description of reference numerals in the utility model earth cable accompanying drawing:
1-cable core 2-refractory insulating layer 3-layer of polyester fiber
4-aluminum alloy strip armour 5-oxygen barrier layer 6-galvanized steel strip armouring restrictive coating
The crosslinked polyetylene insulated layer of 7-conductor 8-conductor shield 9-
10-insulation screen 11-metal screen layer 12-electro-insulating rubber
Embodiment
Below in conjunction with accompanying drawing, the utility model earth cable is described in further detail.
As shown in Figure 1 and Figure 2, the utility model earth cable, comprising: cable core 1 and the refractory insulating layer 2, layer of polyester fiber 3, aluminum alloy strip armour 4, halogen-free low-smoke high-flame cable material of polyolefin oxygen barrier layer 5 and the galvanized steel strip armouring restrictive coating 6 that are wrapped in successively outside cable core 1.And core comprises the conductor shield 8, crosslinked polyetylene insulated layer 9, insulation screen 10 and the metal screen layer 11 that are wrapped in successively outside cellular conductor 7.Wherein three cores are triangle disposition arrangement and between core, are provided with electro-insulating rubber 12 as filler.
The cellular conductor of the utility model earth cable farthest utilizes the surface area of honeycomb to increase earial drainage face, makes lightning current bleed off rapidly.And long service life, electric conductivity is excellent, cold-resistant fire-retardant, also has acid-alkali-corrosive-resisting, the advantage of oil resistant simultaneously.
Below the preferred embodiment that the utility model is created is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modification or replacement under the prerequisite without prejudice to the invention spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (3)
1. earth cable, is characterized in that, comprising: cable core and the refractory insulating layer, layer of polyester fiber, aluminum alloy strip armour, oxygen barrier layer and the galvanized steel strip armouring restrictive coating that are wrapped in successively outside described cable core; Described cable core comprises many cores, and the quantity of described core is 3, and 3 described cores are triangle disposition arrangement; Filler is provided with between described core; Described core comprises and is wrapped in the conductor shield outside conductor, crosslinked polyetylene insulated layer, insulation screen and metal screen layer successively; Described conductor is cellular.
2. earth cable according to claim 1, is characterized in that, described filler is electro-insulating rubber.
3. earth cable according to claim 1, is characterized in that, the material of described oxygen barrier layer is halogen-free low-smoke high-flame cable material of polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451024.4U CN204130248U (en) | 2014-08-11 | 2014-08-11 | Earth cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451024.4U CN204130248U (en) | 2014-08-11 | 2014-08-11 | Earth cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204130248U true CN204130248U (en) | 2015-01-28 |
Family
ID=52386579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420451024.4U Expired - Fee Related CN204130248U (en) | 2014-08-11 | 2014-08-11 | Earth cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204130248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066113A (en) * | 2018-07-19 | 2018-12-21 | 华翔翔能电气股份有限公司 | A kind of substation's enclosed busbar bridge ground loop |
-
2014
- 2014-08-11 CN CN201420451024.4U patent/CN204130248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066113A (en) * | 2018-07-19 | 2018-12-21 | 华翔翔能电气股份有限公司 | A kind of substation's enclosed busbar bridge ground loop |
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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: 20150128 Termination date: 20190811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |