CN204760123U - High electrical safety nature, high anticorrosive, waterproof, water -resistant tree type middling pressure power cable - Google Patents
High electrical safety nature, high anticorrosive, waterproof, water -resistant tree type middling pressure power cable Download PDFInfo
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- CN204760123U CN204760123U CN201520471549.9U CN201520471549U CN204760123U CN 204760123 U CN204760123 U CN 204760123U CN 201520471549 U CN201520471549 U CN 201520471549U CN 204760123 U CN204760123 U CN 204760123U
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Abstract
High electrical safety nature, high anticorrosive, waterproof, water -resistant tree type middling pressure power cable belongs to power cable technical field. The cable core is formed by a plurality of insulation core and earth connection transposition, and insulation core is by the conductor and arrange the outer composite insulation layer of conductor in proper order in, phase separating iron shielded layer constitutes, the cable core has armor magnetic screen layer around the package outward, is equipped with isolation layer, asphalt waterproofing layer, armor, asphalt waterproofing layer outside the armor magnetic screen layer in proper order, and the crowded package of oversheath is outside the asphalt waterproofing layer. The utility model discloses satisfy under the defined termss such as product electric property, mechanical properties and anticorrosive waterproof performance nature rational in infrastructure, the stability of improvement product, the service life of the cable is anticorrosive, water -proof effects and product is prolonged, satisfy coastal area cable radiation environment in the high humility or soak in short -term, requirement such as salt caustic corrosion, water -resistant tree and bend radius are little.
Description
Technical field
The utility model relates to a kind of structure of power cable, is specifically related to the structure of high electrical security, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, belongs to power cable technical field.
Background technology
Along with the progress of science and technology, the application scenario of midium voltage cable is more and more extensive, in order to adapt to the requirements such as the high humility of the cable laying such as coastal area, chemical plant environment or immersion in short-term, saline alkali corrosion, water resistant tree and bending radius are little, need to provide a kind of high electrical security, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable.
Utility model content
The one that the purpose of this utility model is deficiency in order to overcome traditional medium-pressure power cable and develops has high electrical security, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, meet lay the high humility of environment or immersion in short-term, saline alkali corrosion, water resistant set and the bending radius requirement wanting special occasions such as little.
The purpose of this utility model is achieved through the following technical solutions: high electrical security, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, comprise cable core and oversheath, it is characterized in that, described cable core is by some insulated wire cores and earth connection is stranded forms, and described insulated wire cores is by conductor and be placed in the outer field composite insulation layer of conductor successively, phase-splitting metal screen layer forms;
Be surrounded with armouring magnetic masking layer outside described cable core, be provided with separation sleeve, be provided with bituminous water-proof coating outside separation sleeve, be provided with armour outside bituminous water-proof coating outside armouring magnetic masking layer, armour is also provided with one deck bituminous water-proof coating outward, and described oversheath is extruded in outside bituminous water-proof coating;
Described composite insulation layer by being placed in the outer field conductor shield of conductor successively, insulating barrier, insulation screen form, described phase-splitting metal screen layer adopts copper strips overlapping wrapped and fits tightly and forms outward at insulation screen.
The conductor shield of described composite insulation layer, insulating barrier, insulation screen adopt three-layer co-extruded shaping.
Described armouring magnetic masking layer is formed by the outer wrapped wire armouring of cable core or metal tape armour.
Described earth connection conductor adopts and presses circular lay configuration.
Described armour is galvanized steel strip armour or zinc-coated wire armour.
Described conductor is the copper cash that hot strength is high, percentage elongation is large.
Described cable core gap is provided with filler.
In the utility model, cable insulation (composite insulation layer, i.e. conductor shield, insulating barrier, insulation screen) adopts three-layer co-extruded technology, ensure that insulation obtains full cross-linked, ensures electric property and the mechanical performance of cable insulation; Earth connection conductor adopts and presses circular lay configuration, to provide the earth short circuit current of cable shield, guarantees that cable has high electrical security.
The metallic shield of this cable is mainly divided into phase-splitting metallic shield, armouring magnetic screen two parts.Phase-splitting shields: adopt copper strips overlap wrapped, and by the overlap of copper strips, wrapped and copper strips closely fits tightly with insulation shielding, can guarantee the electric field equilibrium of cable insulation.Armouring magnetic screen: at the outer wrapped wire armouring of cable conductor or metal tape armour, improve the shielding ability of cable while increasing cable machinery performance.
Because this type of cable service condition is very more special, the project organization of this cable includes layers of asphalt, namely before and after armouring, each one deck bitumen layer that increases carries out waterproof, effectively water can be completely cut off beyond cable fibre core, by hydrophobic, close organic substance and the corrosion resistant characteristic of pitch, reach anticorrosion, the water resistance of cable.In addition, cable adopts bitumen layer structure to replace traditional plastic-aluminum composite sheath structure or the structure of corrugated aluminum sheath, reduces the external diameter of finished cable greatly, reduces the minimum bending radius of cable simultaneously, improves the bending property of cable.
This armature of cable form is mainly divided into galvanized steel strip armouring and zinc-coated wire armouring two kinds of forms.This cable, by unique design increasing one deck bitumen layer each before and after armouring, while meeting cable waterproof function, utilizes the feature of pitch excellent anti-corrosion performance, improves the corrosion resistance of cable further, improve cable usage safety performance.
Oversheath adopts and extrudes pattern, regulates line speed and extrusion temperature by reasonably arranging, and ensures the requirement that the mechanical performance of sheath meets actual installation and lays.
The utility model is by rigorous structural design and strict technology controlling and process, high electrical security will be made, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable meeting under the defined terms such as product electric property, mechanical performance and corrosion-resistanting waterproofing performance, improve reasonable structure, the stability of product; Improve the useful life of anticorrosion, the waterproof effect of cable and product; Meet coastal area cable radiation environment in requirements such as high humility or immersion in short-term, saline alkali corrosion, water resistant tree and bending radius are little.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1 conductor, 2 conductor shields, 3 insulating barriers, 4 insulation screens, 5 phase-splitting metal screen layers, 6 fillers, 7 earth connections, 8 armouring magnetic masking layers, 9 separation sleeves, 10 bituminous water-proof coatings, 11 armours, 12 bituminous water-proof coatings, 13 oversheaths.
Embodiment
High electrical security, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, comprise cable core and oversheath 13, and cable core is by some insulated wire cores and earth connection 7 is stranded forms, and cable core gap is provided with filler 6, and earth connection conductor adopts and presses circular lay configuration.
Insulated wire cores is by conductor 1 and be placed in the outer field composite insulation layer of conductor successively, phase-splitting metal screen layer 5 forms.Conductor is the copper cash that hot strength is high, percentage elongation is large; Composite insulation layer by being placed in the outer field conductor shield 2 of conductor successively, insulating barrier 3, insulation screen 4 form, conductor shield, insulating barrier, insulation screen adopt three-layer co-extruded shaping; Phase-splitting metal screen layer adopts copper strips overlapping wrapped and fits tightly and forms outward at insulation screen.
Be surrounded with armouring magnetic masking layer 8 outside cable core, armouring magnetic masking layer is formed by the outer wrapped wire armouring of cable core or metal tape armour.Be provided with separation sleeve 9 outside armouring magnetic masking layer, outside separation sleeve, be provided with bituminous water-proof coating 10; Be provided with armour 11 outside bituminous water-proof coating, armour is galvanized steel strip armour or zinc-coated wire armour.Armour is also provided with one deck bituminous water-proof coating 12 outward, and oversheath 13 is extruded in outside bituminous water-proof coating 12.
The utility model structural design innovative point is as follows:
1, the design of conductor structure
Bear larger non-homogeneous stress because cable uses, adopt general copper conductor performance requirement to meet.The utility model adopts has hot strength is high, percentage elongation is large copper cash as cable conductor; The strand that simultaneously have adjusted strand and multiple twisted wire in stranding process to and pitch, make conductor diameter less than conventional equivalent specifications external diameter.
2, metallic shield
Cable requires higher for the earth short circuit current of metallic shield.In order to meet above-mentioned requirements, the structure that this cable adopts phase-splitting metal screen layer, armouring magnetic masking layer and earth connection conductor to combine; Meanwhile, supplementing by ground connection core, increases the earth short circuit current of cable shield, guarantees the high electrical security of cable.
3, water-tight corrosion-proof layer
Verifying through many correlation tests, by asphalt waterproofing, anticorrosion be most economical, effective waterproof measure, adopt Double-layer asphalt watertight composition, by pitch hydrophobic performance, antiseptic property and liquid state, there is superior fluidity energy, waterproof, the antiseptic property of cable can be promoted significantly.
Claims (7)
1. a high electrical security, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, comprise cable core and oversheath (13), it is characterized in that, described cable core is by some insulated wire cores and earth connection (7) is stranded forms, and described insulated wire cores is by conductor (1) and be placed in the outer field composite insulation layer of conductor successively, phase-splitting metal screen layer (5) is formed;
Armouring magnetic masking layer (8) is surrounded with outside described cable core, separation sleeve (9) is provided with outside armouring magnetic masking layer, bituminous water-proof coating (10) is provided with outside separation sleeve, armour (11) is provided with outside bituminous water-proof coating, armour is also provided with one deck bituminous water-proof coating (12) outward, and described oversheath is extruded in bituminous water-proof coating (12) outward;
Described composite insulation layer by being placed in the outer field conductor shield of conductor (2) successively, insulating barrier (3), insulation screen (4) form, described phase-splitting metal screen layer adopts copper strips overlapping wrapped and fits tightly and forms outward at insulation screen.
2. high electrical security according to claim 1, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, is characterized in that, the conductor shield of described composite insulation layer, insulating barrier, insulation screen adopt three-layer co-extruded shaping.
3. high electrical security according to claim 1, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, is characterized in that, described armouring magnetic masking layer is formed by the outer wrapped wire armouring of cable core or metal tape armour.
4. high electrical security according to claim 1, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, is characterized in that, described earth connection conductor adopts and presses circular lay configuration.
5. high electrical security according to claim 1, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, it is characterized in that, described armour is galvanized steel strip armour or zinc-coated wire armour.
6. high electrical security according to claim 1, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, it is characterized in that, described conductor is the copper cash that hot strength is high, percentage elongation is large.
7. high electrical security according to claim 1, high anticorrosion, waterproof, water resistant tree-shaped medium-pressure power cable, it is characterized in that, described cable core gap is provided with filler (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520471549.9U CN204760123U (en) | 2015-07-03 | 2015-07-03 | High electrical safety nature, high anticorrosive, waterproof, water -resistant tree type middling pressure power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520471549.9U CN204760123U (en) | 2015-07-03 | 2015-07-03 | High electrical safety nature, high anticorrosive, waterproof, water -resistant tree type middling pressure power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204760123U true CN204760123U (en) | 2015-11-11 |
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ID=54474805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520471549.9U Expired - Fee Related CN204760123U (en) | 2015-07-03 | 2015-07-03 | High electrical safety nature, high anticorrosive, waterproof, water -resistant tree type middling pressure power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204760123U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409405A (en) * | 2016-10-27 | 2017-02-15 | 施永妹 | Power device applied to wet environment |
| CN110033881A (en) * | 2019-04-08 | 2019-07-19 | 安徽英杰华电气有限公司 | A kind of space flight fire resistant special cable |
| CN114822951A (en) * | 2022-06-07 | 2022-07-29 | 无锡市华美电缆有限公司 | Waterproof insulated wire and cable and preparation method thereof |
-
2015
- 2015-07-03 CN CN201520471549.9U patent/CN204760123U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409405A (en) * | 2016-10-27 | 2017-02-15 | 施永妹 | Power device applied to wet environment |
| CN110033881A (en) * | 2019-04-08 | 2019-07-19 | 安徽英杰华电气有限公司 | A kind of space flight fire resistant special cable |
| CN114822951A (en) * | 2022-06-07 | 2022-07-29 | 无锡市华美电缆有限公司 | Waterproof insulated wire and cable and preparation method thereof |
| CN114822951B (en) * | 2022-06-07 | 2024-01-23 | 无锡市华美电缆有限公司 | Waterproof insulated wire and cable and preparation method thereof |
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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: 20151111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |