CN202258477U - High-voltage cable for electric railway - Google Patents
High-voltage cable for electric railway Download PDFInfo
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- CN202258477U CN202258477U CN2011203868234U CN201120386823U CN202258477U CN 202258477 U CN202258477 U CN 202258477U CN 2011203868234 U CN2011203868234 U CN 2011203868234U CN 201120386823 U CN201120386823 U CN 201120386823U CN 202258477 U CN202258477 U CN 202258477U
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- electric railway
- tension cable
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Abstract
The utility model provides a high-voltage cable for an electric railway; three coextrusion layers are extruded on a conductor, a waterproof layer is arranged outside the three coextrusion layers, a shielding layer is arranged outside the waterproof layer in a sparsely winding manner, an armor layer is wound outside the shielding layer, and a sheath is extruded outside the armor layer. The high-voltage cable for the electric railway adopts the cable conductor which is round in a compacting manner, 502 glue water is coated on each layer when the conductor is twisted, so as to effectively achieve a function of retaining water longitudinally; high-purity XLPE (Cross Linked Polyethylene) insulating material adopts a three-layer co-extrusion chemical crosslinking production line with international advanced level, so as to ensure the electrical insulating performance of the cable; the waterproof layer adopts an aluminum-plastic composite layer to have good water-proof performance and enhance the shielding effect of the cable; the cable armor layer adopts a copper strip to armor and the outer cable sheath adopts novel environmentally-friendly temite-proof polyolefin material, so as to effectively prevent mice and termite from biting the cable and ensure the safety operation of the cable.
Description
Technical field
The utility model belongs to electric railway cable technology field, relates to a kind of electric railway high-tension cable.
Background technology
In this allegro interconnected world, communications and transportation is all most important for people's trip and freight transportation.Convenient, at a high speed, safety is the direction that people pursue always, this is just to providing power proposition higher requirement for the electric railway passenger vehicle.China attaches great importance to the development of electric railway, and the Mid-term and Long-term Plan of the Railway Network of State Council approved clearly indicates out, and to the year two thousand twenty, the China railways total kilometrage will reach 100000km, wherein electrified 50000km.The trunk railway lines major part all will realize electrification from now on, and electric traction will be born the main transport task of railway, in the Chinese Railway transportation, be in leading position, and the application of high-tension cable has been included in the high speed passenger dedicated railway technology platform system of China.
At present, possess producer's minority very of producing electric railway high pressure single-phase copper core cross-linked polyethylene insulated cable ability, and the cable feature of producing is single, promptly is merely the electrical property that satisfies electric railway cable demand, fault current capacities etc.But the construction of railway is nationwide, and the southern and northern weather of China is totally different, and there is utmost point low temperature in the north winter, makes cable can receive the influence of low temperature, causes the cable cover(ing) cracking, and mechanical performance descends, and screen loses shield effectiveness; The south temperature is higher relatively, rainwater is more, and weather is moistening, and cable in damp and hot environment, can receive soaking into of moisture for a long time, makes the cable water inlet, causes the decreasing insulating of cable, and current-carrying capacity of cable reduces greatly, and reduce useful life greatly; Special region termite in length and breadth, mouse is various in the subway environment, termite, mouse are very serious to plastic sheath electric wire breakoff phenomenon, gently then cause interruption of power supply, and be heavy then cause the accident, and electric power system is deeply hurt.In these rugged environments, laying conventional electric railway cable has brought potential safety hazard can for the operation of railway.
The utility model content
The technical problem that the utility model will solve is to overcome existing defective, and a kind of electric railway high-tension cable is provided, and has characteristics such as moisture-proof heat, scratch resistance mill, acid and alkali-resistance, shielding properties is strong.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of electric railway high-tension cable extrudes three-layer co-extruded layer on conductor, outside three-layer co-extruded layer, water blocking layer is set, and water blocking layer is dredged outward around screen, the outer wrapped armour of screen, and armour extrudes sheath outward.
Further, conductor adopts and to press circle, and when the strand system every layer apply 502 glue.
Further, three-layer co-extruded layer comprises conductor shield, insulating barrier and insulation screen from inside to outside successively, adopts three-layer co-extruded chemical crosslinking production line, and insulating barrier adopts high pure XLPE Insulation Material.
Further, water blocking layer adopts plastic-aluminum combined layer, and by the vertical bag of aluminium foil, 502 glue are put up, and aluminium foil extrudes the layer of polyethylene material water-proof material outward.
Further, screen is the copper wire screen.
Further, armour is the copper strips armour.
Further, sheath adopts the termite-proof polyolefine material of novel environment friendly.
A kind of electric railway high-tension cable of the utility model adopts cable conductor to adopt and presses circle, and when conductor strand system every layer apply 502 glue, played vertical resistance effect effectively; High pure XLPE Insulation Material adopts the three-layer co-extruded chemical crosslinking production line with international most advanced level, has guaranteed the electrical insulation properties of cable; Water blocking layer adopts plastic-aluminum combined layer, has both played favorable waterproof property, has strengthened the shield effectiveness of cable simultaneously again; Cable sheath has adopted the copper strips armouring, and cable jacket adopts the termite-proof polyolefine material of novel environment friendly simultaneously, has prevented that effectively mouse, termite from biting gnawing of cable, ensured the safe operation of cable.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of specification, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of electric railway high-tension cable of the utility model.
Embodiment
Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
As shown in Figure 1, a kind of electric railway high-tension cable extrudes three-layer co-extruded layer 2 on conductor 1, outside three-layer co-extruded layer 2, water blocking layer 3 is set, water blocking layer 3 outer dredging around screen 4, screen 4 outer wrapped armours 5, the armour 5 outer sheaths 6 that extrude.
Conductor 1 adopts and presses circle, and when the strand system every layer apply 502 glue.
Three-layer co-extruded layer 2 comprises conductor shield, insulating barrier and insulation screen from inside to outside successively, adopts three-layer co-extruded chemical crosslinking production line, and insulating barrier adopts high pure XLPE Insulation Material.
Water blocking layer 3 adopts plastic-aluminum combined layer, and by the vertical bag of aluminium foil, 502 glue are put up, and aluminium foil extrudes the layer of polyethylene material water-proof material outward.
Screen 4 is the copper wire screen.
Armour 5 is the copper strips armour.
Sheath 6 adopts the termite-proof polyolefine material of novel environment friendly.
A kind of electric railway high-tension cable of the utility model adopts cable conductor to adopt and presses circle, and when conductor strand system every layer apply 502 glue, played vertical resistance effect effectively; High pure XLPE Insulation Material adopts the three-layer co-extruded chemical crosslinking production line with international most advanced level, has guaranteed the electrical insulation properties of cable; Water blocking layer adopts plastic-aluminum combined layer, has both played favorable waterproof property, has strengthened the shield effectiveness of cable simultaneously again; Cable sheath has adopted the copper strips armouring, and cable jacket adopts the termite-proof polyolefine material of novel environment friendly simultaneously, has prevented that effectively mouse, termite from biting gnawing of cable, ensured the safe operation of cable.
What should explain at last is: the above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (7)
1. electric railway high-tension cable is characterized in that: on conductor, extrude three-layer co-extruded layer, water blocking layer is set in that three-layer co-extruded layer is outer, water blocking layer is dredged outward around screen, wrapped armour outside the screen, and armour extrudes sheath outward.
2. a kind of electric railway high-tension cable according to claim 1 is characterized in that: said conductor adopts and presses circle, and when the strand system every layer apply 502 glue.
3. a kind of electric railway high-tension cable according to claim 1; It is characterized in that: said three-layer co-extruded layer comprises conductor shield, insulating barrier and insulation screen from inside to outside successively; Adopt three-layer co-extruded chemical crosslinking production line, insulating barrier adopts high pure XLPE Insulation Material.
4. a kind of electric railway high-tension cable according to claim 1 is characterized in that: said water blocking layer adopts plastic-aluminum combined layer, and by the vertical bag of aluminium foil, 502 glue are put up, and aluminium foil extrudes the layer of polyethylene material water-proof material outward.
5. a kind of electric railway high-tension cable according to claim 1 is characterized in that: said screen is the copper wire screen.
6. a kind of electric railway high-tension cable according to claim 1 is characterized in that: said armour is the copper strips armour.
7. a kind of electric railway high-tension cable according to claim 1 is characterized in that: said sheath adopts the termite-proof polyolefine material of novel environment friendly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203868234U CN202258477U (en) | 2011-10-11 | 2011-10-11 | High-voltage cable for electric railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203868234U CN202258477U (en) | 2011-10-11 | 2011-10-11 | High-voltage cable for electric railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258477U true CN202258477U (en) | 2012-05-30 |
Family
ID=46119685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203868234U Expired - Fee Related CN202258477U (en) | 2011-10-11 | 2011-10-11 | High-voltage cable for electric railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225757A (en) * | 2015-11-06 | 2016-01-06 | 远程电缆股份有限公司 | One is applied to the moistureproof anti-interference frequency converter midium voltage cable of CI island novel flame-retardant |
| CN108109754A (en) * | 2017-12-01 | 2018-06-01 | 新宇电缆集团股份有限公司 | A kind of termite-proof antifreeze private cable that blocks water of track traffic |
-
2011
- 2011-10-11 CN CN2011203868234U patent/CN202258477U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225757A (en) * | 2015-11-06 | 2016-01-06 | 远程电缆股份有限公司 | One is applied to the moistureproof anti-interference frequency converter midium voltage cable of CI island novel flame-retardant |
| CN108109754A (en) * | 2017-12-01 | 2018-06-01 | 新宇电缆集团股份有限公司 | A kind of termite-proof antifreeze private cable that blocks water of track traffic |
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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: 20120530 Termination date: 20121011 |