CN202796215U - Magnetic isolated corrosion resistant armor used in power cable - Google Patents
Magnetic isolated corrosion resistant armor used in power cable Download PDFInfo
- Publication number
- CN202796215U CN202796215U CN 201220510319 CN201220510319U CN202796215U CN 202796215 U CN202796215 U CN 202796215U CN 201220510319 CN201220510319 CN 201220510319 CN 201220510319 U CN201220510319 U CN 201220510319U CN 202796215 U CN202796215 U CN 202796215U
- Authority
- CN
- China
- Prior art keywords
- power cable
- extruded
- polyethylene layer
- corrosion resistant
- cable
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a magnetic isolated corrosion resistant armor used in a power cable, comprising an armor body wrapped on an inner lining of a power cable core. The magnetic isolated corrosion resistant armor used in the power cable is characterized in that the armor body comprises more than two steel wires, more than one fiber reinforce plastic (FRP) strip and an anticorrosion asphalt, a polyethylene layer is extruded on the outer layer of the FRP strip, and the diameter of the FRP strip extruded with the polyethylene layer is equal to that of the steel wires; the FRP strip extruded with the polyethylene layer is arranged between any two steel wires, and the anticorrosion asphalt is filled between the FRP strip extruded with the polyethylene layer and the steel wires. The advantages of the utility model are that the magnetic isolated corrosion resistant armor used in the power cable enables the electric energy extra loss of an armored layer to be reduced, the cable current-carrying capacity to be improved and the corrosion resistant capacity of the armored layer to be enhanced, so that the cable service life is prolonged, and the safety and reliability of a power grid are improved.
Description
Technical field
The utility model relates to the power cable field, relates in particular to a kind of power cable and uses every the corrosion-resistant armouring of magnetic.
Background technology
The exigent reliability of power cable, because after in a single day they lay, maintenance is just very difficult.In some application scenarios, as being used for the power cable of vertical shaft and laying down on sea bottom, be subject to the damage of mechanical pulling force for preventing cable, usually the equal wire armoring in addition of power cable.Although armouring wire is wrapped on the cable, but prevent outside mechanical damage, but these steel wire majorities are magnetic materials, can produce induced current when cable moves, and cause extra supplementary load loss at armour, reduce the ampacity of cable; And long-term in service, armouring wire usually is subject to environmental impact or ground magnetic action and causes the damage such as electrochemical corrosion, thereby has shortened the useful life of power cable.
Summary of the invention
Can produce extra supplementary load loss and can be subject to environmental impact or deficiency that ground magnetic action and the electrochemical corrosion that causes etc. damage in order to overcome prior art, the utility model provides a kind of power cable to use every the corrosion-resistant armouring of magnetic.
The technical solution adopted in the utility model is:
A kind of power cable is used every the corrosion-resistant armouring of magnetic, comprise the armouring body, described armouring body is wrapped on the inner covering of electric-cable core, described armouring body comprises that radical is that two and above steel wire, radical are one and above FRP bar and anti-corrosion asphalt, described FRP bar skin is extruded with polyethylene layer, the described diameter that is extruded with the FRP bar of polyethylene layer equates with gauge of wire, the described FRP bar that is extruded with polyethylene layer is located between any two steel wires, is filled with anti-corrosion asphalt between the described FRP bar that is extruded with polyethylene layer and the steel wire.
The utility model has the advantages that: power cable reduces the electric energy excess loss of armour every the corrosion-resistant armouring of magnetic, improves the ampacity of cable, and the corrosion resistance of armour is strengthened, thereby has prolonged the useful life of cable, improves the security reliability of electrical network.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model FRP bar.
Wherein: 1, cable conductor, 2, inner covering, 3, steel wire, 4, the FRP bar, 5, anti-corrosion asphalt.
Embodiment
As illustrated in fig. 1 and 2, a kind of power cable of the present utility model is used every the corrosion-resistant armouring of magnetic, comprise the armouring body, described armouring body is wrapped on the inner covering 2 of electric-cable core 1, described armouring body comprises that radical is two and above steel wire 3, radical is one and above FRP bar 4 and anti-corrosion asphalt 5, described FRP bar 4 skins are extruded with polyethylene layer 6, the diameter of the described FRP bar 4 that is extruded with polyethylene layer 6 and the equal diameters of steel wire 3, the described FRP bar 4 that is extruded with polyethylene layer 6 is located between any two steel wires 3, is filled with anti-corrosion asphalt 5 between the described FRP bar 4 that is extruded with polyethylene layer 6 and the steel wire 3.
It is spaced apart with armouring wire 3 that the utility model owing to adopted has the FRP bar 4 that extrudes polyethylene layer 6 certain mechanical strength, incorrosive, it is whole that armour can not form a sealing magnetic material, just be difficult for producing eddy current loss during the cable operation, thereby reduce the electric energy excess loss of armour, improve the ampacity of cable; In addition, owing to extrude the FRP bar 4 of polyethylene layer 6 sizable mechanical strength is arranged, the whole stretching resistance of cable does not almost have any impact, and, the FRP bar 4 that extrudes polyethylene layer 6 is insulators, can not be subject to owing to environment and the ground damages such as electrochemical corrosion that cause of magnetic influence, thereby prolong useful life of cable.
Claims (1)
1. a power cable is used every the corrosion-resistant armouring of magnetic, comprise the armouring body, described armouring body is wrapped on the inner covering of electric-cable core, it is characterized in that: described armouring body comprises that radical is that two and above steel wire, radical are one and above FRP bar and anti-corrosion asphalt, described FRP bar skin is extruded with polyethylene layer, the described diameter that is extruded with the FRP bar of polyethylene layer equates with gauge of wire, the described FRP bar that is extruded with polyethylene layer is located between any two steel wires, is filled with anti-corrosion asphalt between the described FRP bar that is extruded with polyethylene layer and the steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510319 CN202796215U (en) | 2012-10-08 | 2012-10-08 | Magnetic isolated corrosion resistant armor used in power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510319 CN202796215U (en) | 2012-10-08 | 2012-10-08 | Magnetic isolated corrosion resistant armor used in power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796215U true CN202796215U (en) | 2013-03-13 |
Family
ID=47823428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220510319 Expired - Lifetime CN202796215U (en) | 2012-10-08 | 2012-10-08 | Magnetic isolated corrosion resistant armor used in power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796215U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766652A (en) * | 2015-03-31 | 2015-07-08 | 江苏通光强能输电线科技有限公司 | Non-magnetic corrosion-resistant high-strength aluminum alloy wire armor structure of submarine cable |
| CN109559858A (en) * | 2017-09-27 | 2019-04-02 | 中天科技海缆有限公司 | The armouring method of cable |
-
2012
- 2012-10-08 CN CN 201220510319 patent/CN202796215U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766652A (en) * | 2015-03-31 | 2015-07-08 | 江苏通光强能输电线科技有限公司 | Non-magnetic corrosion-resistant high-strength aluminum alloy wire armor structure of submarine cable |
| CN109559858A (en) * | 2017-09-27 | 2019-04-02 | 中天科技海缆有限公司 | The armouring method of cable |
| CN109559858B (en) * | 2017-09-27 | 2020-04-10 | 中天科技海缆有限公司 | Method for armouring cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |