CN202258530U - Electric railway 27.5kV single-phase alternating current power cable - Google Patents
Electric railway 27.5kV single-phase alternating current power cable Download PDFInfo
- Publication number
- CN202258530U CN202258530U CN2011203805536U CN201120380553U CN202258530U CN 202258530 U CN202258530 U CN 202258530U CN 2011203805536 U CN2011203805536 U CN 2011203805536U CN 201120380553 U CN201120380553 U CN 201120380553U CN 202258530 U CN202258530 U CN 202258530U
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- CN
- China
- Prior art keywords
- alternating current
- phase alternating
- power cable
- electric railway
- single phase
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- 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 - Fee Related
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Abstract
The utility model discloses an electric railway 27.5kV single-phase alternating current power cable which is composed of a wire core copper conductor, a semi-conductive conductor shielding layer, an insulating layer, an insulating shielding layer, a non-woven fabric belting, and a halogen-free low-smoke outer sheath from inside to outside. The electric railway 27.5kV single-phase alternating current power cable is characterized in that the insulating shielding layer is formed by a non-metal semi-conductive layer and a metal layer from inside to outside, wherein the non-metal semi-conductive layer adopts an extruded crosslinking bonding type semi-conductive material, and the metal layer adopts the copper wire shield. The surface of the copper wire shield is provided with copper wires or copper belts which are reversely extruded, and the average winding gap of the copper wire shield is no bigger than 4mm. Because the insulating shielding layer adopts a double-layer shielding mode and combines with the conductor shielding layer, the shielding effect of the cable is greatly improved. In the electric railway application, the cable can have powerful anti-electromagnetic interference capacity so as to guarantee the safe and reliable operation of a train.
Description
Technical field
The utility model relates to a kind of cable, specifically is a kind of electric railway 27.5kV single phase alternating current (A.C.) cable.
Background technology
China's tradition and existing middle pressure crosslinked cable, it is not enough to have at least three aspects to exist, and can not satisfy China's electric railway, the needs of high speed development.The first, electric pressure, the electric pressure U of electric railway traction power supply system
0Be 27.5kV, and tradition and existing middle pressure crosslinked cable, ceiling voltage is 26/35kV, U
0Be 26kV, obviously satisfied not.The second, block-water performance aspect, China is the country on many mountains, in high-speed railway the cavern tunnel everywhere portion be, in the not only many but also long cavern tunnel, environment not only humidity but also complicacy, cable need have the performance that blocks water.Three, fire resistance, traditional middle pressure crosslinked cable does not have this model of flame retardant cable.
The utility model content
In order to overcome above-mentioned deficiency, the utility model purpose is to provide a kind of excellent electrical properties and electric pressure high, can block water, and has fire resistance, safe and reliable electric railway 27.5kV single phase alternating current (A.C.) electric power cable.
To achieve these goals, the technical scheme below the utility model adopts:
Electric railway 27.5kV single phase alternating current (A.C.) electric power cable; Be to constitute from inside to outside by core copper conductor, semiconductive conductor shield, insulating barrier, insulation screen, nonwoven fabrics band and low smoke, zero halogen oversheath; Its spy is characterised in that: said insulation screen is to be combined by nonmetal semi-conductive layer and metal level from inside to outside; Wherein, nonmetal semi-conductive layer adopts and extrudes crosslinked binding type semiconductive material, and metal level adopts the copper wire shielding.
The surface of said copper wire shielding is provided with reverse wrapped copper wire or copper strips, and the mean gap of coiling should be not more than 4mm in the copper wire shielding.
The periphery of said nonwoven fabrics band is provided with the separator that blocks water, and the periphery of the separator that blocks water is provided with the armouring of being processed by nonferromugnetic material.
The peripheral stacked package of said armouring has the thick LSOH anti-flaming glass fiber tape of 0.2mm.
Said armouring adopts circular aluminium wire, and its diameter is 2.0mm or 2.5mm.
Said armouring adopts the flat aluminium wire, and its thickness is 0.8mm.
Said insulating barrier adopts cross-linking polyethylene materials, and its thickness is not less than 11mm.
The cross-sectional area of said core copper conductor is: 150mm
2Or 185mm
2Or 240mm
2Or 300mm
2Or 400mm
2
The beneficial effect of the utility model:, improved the electric properties such as withstand voltage and impact of insulation greatly because insulating barrier has adopted high-quality XLPE material and good processing technology; Separator has adopted polyethylene sheath material owing to block water, and has improved the radially block-water performance of cable; Because armouring has adopted aluminium wire or aluminum-alloy wire, the resistance to tension that has promptly improved cable does not increase the eddy current and the stagnant magnetic loss of armour again; Because armouring has adopted halogen-free flameproof band and halogen-free and low-smoke flame-retardant polyolefin sheathed outward, has improved the fire resistance of cable.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further to specify.
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, core copper conductor; 2, semiconductive conductor shield; 3, insulating barrier; 4, nonmetal semi-conductive layer; 5, metal level; 6, reverse wrapped copper wire or copper strips; 7, nonwoven fabrics band; 8, the separator that blocks water; 9, armouring; 10, glass fiber tape; 11, low smoke, zero halogen oversheath.
Embodiment
As shown in Figure 1, electric railway 27.5kV single phase alternating current (A.C.) electric power cable is to be 240mm by cross-sectional area from inside to outside
2Core copper conductor 1, semiconductive conductor shield 2, insulating barrier 3, insulation screen, nonwoven fabrics band 7 and low smoke, zero halogen oversheath 11 constitute, insulating barrier 3 adopts cross-linking polyethylene materials, its thickness is not less than 11mm.Said insulation screen is to be combined with metal level 5 by nonmetal semi-conductive layer 4 from inside to outside; Wherein, Nonmetal semi-conductive layer 4 adopts and extrudes crosslinked binding type semiconductive material; Metal level 5 adopts the copper wire shielding, and the surface of copper wire shielding is provided with reverse wrapped copper wire or copper strips 6, and the mean gap of coiling should be not more than 4mm in the copper wire shielding.
The periphery of said nonwoven fabrics band 7 is provided with the separator 8 that blocks water; The block water periphery of separator 8 is provided with the armouring of being processed by nonferromugnetic material 9; Armouring adopts circular aluminium wire, and its diameter is 2.5mm, and the peripheral stacked package of armouring 9 has the thick LSOH anti-flaming glass fiber tape 10 of 0.2mm.
Claims (8)
1. electric railway 27.5kV single phase alternating current (A.C.) electric power cable; Be to constitute from inside to outside by core copper conductor, semiconductive conductor shield, insulating barrier, insulation screen, nonwoven fabrics band and low smoke, zero halogen oversheath; Its spy is characterised in that: said insulation screen is to be combined by nonmetal semi-conductive layer and metal level from inside to outside; Wherein, nonmetal semi-conductive layer adopts and extrudes crosslinked binding type semiconductive material, and metal level adopts the copper wire shielding.
2. electric railway 27.5kV single phase alternating current (A.C.) electric power cable according to claim 1 is characterized in that: the surface of said copper wire shielding is provided with reverse wrapped copper wire or copper strips, and the mean gap of coiling should be not more than 4mm in the copper wire shielding.
3. electric railway 27.5kV single phase alternating current (A.C.) electric power cable according to claim 1, it is characterized in that: the periphery of said nonwoven fabrics band is provided with the separator that blocks water, and the periphery of the separator that blocks water is provided with the armouring of being processed by nonferromugnetic material.
4. electric railway 27.5kV single phase alternating current (A.C.) electric power cable according to claim 3, it is characterized in that: the peripheral stacked package of said armouring has the thick LSOH anti-flaming glass fiber tape of 0.2mm.
5. electric railway 27.5kV single phase alternating current (A.C.) electric power cable according to claim 3, it is characterized in that: said armouring adopts circular aluminium wire, and its diameter is 2.0mm or 2.5mm.
6. electric railway 27.5kV single phase alternating current (A.C.) electric power cable according to claim 3 is characterized in that: said armouring adopts the flat aluminium wire, and its thickness is 0.8mm.
7. electric railway 27.5kV single phase alternating current (A.C.) electric power cable according to claim 1 is characterized in that: said insulating barrier adopts cross-linking polyethylene materials, and its thickness is not less than 11mm.
8. electric railway 27.5kV single phase alternating current (A.C.) electric power cable according to claim 1, it is characterized in that: the cross-sectional area of said core copper conductor is: 150mm
2Or 185mm
2Or 240mm
2Or 300mm
2Or 400mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203805536U CN202258530U (en) | 2011-10-09 | 2011-10-09 | Electric railway 27.5kV single-phase alternating current power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203805536U CN202258530U (en) | 2011-10-09 | 2011-10-09 | Electric railway 27.5kV single-phase alternating current power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258530U true CN202258530U (en) | 2012-05-30 |
Family
ID=46119738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203805536U Expired - Fee Related CN202258530U (en) | 2011-10-09 | 2011-10-09 | Electric railway 27.5kV single-phase alternating current power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258530U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658047A (en) * | 2017-10-23 | 2018-02-02 | 何木栋 | Reversely around packet mode coal mine cable |
| CN107705895A (en) * | 2017-10-23 | 2018-02-16 | 何木栋 | Coal mine cable |
| CN107705891A (en) * | 2017-10-23 | 2018-02-16 | 何木栋 | Armored type coal mine cable |
| CN107731405A (en) * | 2017-10-23 | 2018-02-23 | 何木栋 | Aluminium wire armoured formula coal mine cable |
| CN107768006A (en) * | 2017-10-23 | 2018-03-06 | 何木栋 | Coal mine cable with the separation layer that blocks water |
| CN107833672A (en) * | 2017-10-23 | 2018-03-23 | 何木栋 | Multifunctional coal mine cable |
-
2011
- 2011-10-09 CN CN2011203805536U patent/CN202258530U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658047A (en) * | 2017-10-23 | 2018-02-02 | 何木栋 | Reversely around packet mode coal mine cable |
| CN107705895A (en) * | 2017-10-23 | 2018-02-16 | 何木栋 | Coal mine cable |
| CN107705891A (en) * | 2017-10-23 | 2018-02-16 | 何木栋 | Armored type coal mine cable |
| CN107731405A (en) * | 2017-10-23 | 2018-02-23 | 何木栋 | Aluminium wire armoured formula coal mine cable |
| CN107768006A (en) * | 2017-10-23 | 2018-03-06 | 何木栋 | Coal mine cable with the separation layer that blocks water |
| CN107833672A (en) * | 2017-10-23 | 2018-03-23 | 何木栋 | Multifunctional coal mine cable |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20191009 |