CN202694937U - Anti-drag type concentric conductor power cable - Google Patents
Anti-drag type concentric conductor power cable Download PDFInfo
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- CN202694937U CN202694937U CN 201220219104 CN201220219104U CN202694937U CN 202694937 U CN202694937 U CN 202694937U CN 201220219104 CN201220219104 CN 201220219104 CN 201220219104 U CN201220219104 U CN 201220219104U CN 202694937 U CN202694937 U CN 202694937U
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- concentric
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- cable
- power cable
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Abstract
The utility model discloses an anti-drag type concentric conductor power cable, which comprises three inner conductors, wherein outsides of the two of the three inner conductors are wrapped with insulating layers; the three inner conductors are mutually twisted into a bundle to form a cable core; a wrapping tape layer, an inside liner layer and a concentric layer are orderly packed at the outside of the cable core; a plurality of outer conductors which are concentric with the three inner conductors are arranged in the concentric layer; an anti-tensile core is arranged in the gap between adjacent outer conductors; the outside of the concentric layer is wrapped with a twisting tape layer and a sheath layer formed by overlapping and twisting heat-resisting glass fibre tapes. The anti-drag type concentric conductor power cable has relatively low and uniform positive (inverse) and zero sequence impedances, which is beneficial to improve the quality of power supply; the anti-tensile type and (concentric conductor) outer conductor are arranged at the same layer, which is beneficial to improve the tensile strength and compactness; under the zero-sequence working condition, the reactance value of the outer conductor is lower, which is beneficial to the sensitive action of a short-circuit automatic protection device, thereby the safe operation of the related equipments of the cable is guaranteed; In addition, the anti-drag type concentric conductor power cable is relatively strong in anti-electromagnetic interference and anti-lightning performance.
Description
Technical field:
The utility model relates to the power cable field, relates in particular to a kind of anti-type concentric-conductor power cable that pulls.
Background technology:
Cable is in order to transmit electricity (magnetic) energy, the wire product of information and the conversion of realization electromagnetic energy.Normally by the cable of several or at least two every group stranded similar ropes that form of several groups of wires, mutually insulated between every group of wire, and often be twisted into round a center, whole outside is surrounded by the cover layer of high-insulation.Electric wire mainly comprises bare wire, electromagnetic wire and electrical equipment and electrical insulated electric conductor, power cable, telecommunication cable and optical cable.
The a lot of operating characteristics of common three-core cable are relatively poor, such as higher and inhomogeneous just (contrary) order and zero sequence working impedance, the action of short circuit automatic safety device is insensitive etc.For not satisfying work requirements under the actual working environment; For the fireproof power cable of concentric conductor, cable has lower and uniformly just (contrary) order and zero sequence working impedance, is conducive to improve power supply quality; Concentric layer conductor (circle of one between inner covering and lapping layer outer conductor) is more much lower than the 3rd core, the reactance value of four-core under the zero sequence operating state of common three cores, quad, be conducive to the sensitivity action of short circuit automatic safety device, thereby guarantee the safe operation of cable relevant device; Have the performances such as stronger anti-electromagnetic interference and anti-lightning.
In addition, the anti-poor-performing that pulls of cable, easily disconnected core in the laying installation process.
The utility model content:
The purpose of this utility model provides a kind of anti-type concentric-conductor power cable that pulls; be applicable to be used as electric power transfer in rated voltage 0.6/1kv and the following power circuit; being active in one's movements of the short-and-medium circuit automatic protection device of the course of work; have lower and uniformly just (contrary) order and zero sequence working impedance, the anti-superior performance that pulls.
The technical solution of the utility model is as follows:
The anti-type concentric-conductor power cable that pulls, comprise three inner wires, it is characterized in that: described three inner wires wherein two outsides are enclosed with respectively insulating barrier, three mutual stranded bunchys of inner wire consist of cable core, cable core is enclosed with belting layer, inner covering, concentric layer outward successively, be provided with several and three outer conductors that inner wire is concentric in the concentric layer, be provided with tensile core in the gap between outer conductor is adjacent, the concentric layer outside is enclosed with lapping layer, the restrictive coating of the overlapping wrapped formation of high temperature resistance glass fiber band.
Described resisting pulls the type concentric-conductor power cable, it is characterized in that: described three inner wires, outer conductor adopt alloy conductor.
Described resisting pulls the type concentric-conductor power cable, and it is characterized in that: it is polyvinyl chloride that described insulating barrier, restrictive coating all adopt material.
The utility model has the advantages that:
The utlity model has lower and uniformly just (contrary) order and zero sequence working impedance, be conducive to improve power supply quality; Tensile type is arranged on same layer with (concentric conductor) outer conductor, be conducive to improve tensile strength and structural compactness, the reactance value of outer conductor under the zero sequence operating state is lower, is conducive to the sensitivity action of short circuit automatic safety device, thereby guarantees the safe operation of cable relevant device; In addition, have the performances such as stronger anti-electromagnetic interference and anti-lightning.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Referring to Fig. 1:
The anti-type concentric-conductor power cable that pulls, comprise three inner wires 1, three inner wires 1 wherein are enclosed with respectively insulating barrier 2 in two outsides, three inner wire 1 mutual stranded bunchys consist of cable core, cable core is enclosed with belting layer 3, inner covering 4, concentric layer 5 outward successively, be provided with several and three outer conductors 6 that inner wire is concentric in the concentric layer 5, be provided with tensile core 7 in the gap between outer conductor 6 is adjacent, concentric layer 5 outsides are enclosed with lapping layer 8, the restrictive coating 9 of the overlapping wrapped formation of high temperature resistance glass fiber band.
Three inner wires 1, outer conductors 6 adopt alloy conductor.
It is polyvinyl chloride that insulating barrier 2, restrictive coating 9 all adopt material.
Claims (3)
1. anti-type concentric-conductor power cable that pulls, comprise three inner wires, it is characterized in that: described three inner wires wherein two outsides are enclosed with respectively insulating barrier, three mutual stranded bunchys of inner wire consist of cable core, cable core is enclosed with belting layer, inner covering, concentric layer outward successively, be provided with several and three outer conductors that inner wire is concentric in the concentric layer, be provided with tensile core in the gap between outer conductor is adjacent, the concentric layer outside is enclosed with lapping layer, the restrictive coating of the overlapping wrapped formation of high temperature resistance glass fiber band.
2. according to claim 1 resisting pulls the type concentric-conductor power cable, it is characterized in that: described three inner wires, outer conductor adopt alloy conductor.
3. according to claim 1 resisting pulls the type concentric-conductor power cable, and it is characterized in that: it is polyvinyl chloride that described insulating barrier, restrictive coating all adopt material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219104 CN202694937U (en) | 2012-05-16 | 2012-05-16 | Anti-drag type concentric conductor power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219104 CN202694937U (en) | 2012-05-16 | 2012-05-16 | Anti-drag type concentric conductor power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694937U true CN202694937U (en) | 2013-01-23 |
Family
ID=47550519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220219104 Expired - Fee Related CN202694937U (en) | 2012-05-16 | 2012-05-16 | Anti-drag type concentric conductor power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795168A (en) * | 2015-02-27 | 2015-07-22 | 安徽华峰电缆集团有限公司 | Acid and alkali corrosion resistant drainage control cable |
| CN104795169A (en) * | 2015-02-27 | 2015-07-22 | 安徽华峰电缆集团有限公司 | Chemical-corrosion-preventing drain wire |
-
2012
- 2012-05-16 CN CN 201220219104 patent/CN202694937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795168A (en) * | 2015-02-27 | 2015-07-22 | 安徽华峰电缆集团有限公司 | Acid and alkali corrosion resistant drainage control cable |
| CN104795169A (en) * | 2015-02-27 | 2015-07-22 | 安徽华峰电缆集团有限公司 | Chemical-corrosion-preventing drain wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130516 |