CN202816476U - Low temperature wind energy power cable - Google Patents
Low temperature wind energy power cable Download PDFInfo
- Publication number
- CN202816476U CN202816476U CN 201220348281 CN201220348281U CN202816476U CN 202816476 U CN202816476 U CN 202816476U CN 201220348281 CN201220348281 CN 201220348281 CN 201220348281 U CN201220348281 U CN 201220348281U CN 202816476 U CN202816476 U CN 202816476U
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- energy power
- power cable
- temperature wind
- cable
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Abstract
The utility model discloses a low temperature wind energy power cable, comprising a cable core, wherein the cable core is wrapped with a taped covering layer, the tapped covering layer is wrapped with a sheath layer in a manner of extrusion, a plurality of wire cores and rubber filling strips wrapping the wire cores and extruded among the wire cores are intertwisted into a cable core, and the wire cores are formed through wrapping the outer surface of intertwist conductors with an isolation belt in a manner of overlap tapped covering and then wrapping the isolation belt with an insulating layer in a manner of extrusion. The low temperature wind energy power cable is formed through un-intertwisting and intertwisting the warpping-resistant intertwist conductors in a same layer and same direction, has a flexible reciprocating warpping force, and is uneasy to deform in the process of mounting in moving or static place, thereby preventing the conductors from being damaged caused by the reciprocating motion of the traditional cable, reducing the damage on the conductive wire cores, and increasing the warpping resistance of the cable in the process of operation.
Description
Technical field
The utility model belongs to the power cable field, specifically a kind of low-temperature wind-energy power cable.
Background technology
The technical specification of low-temperature wind-energy power cable has formally been implemented in May, 2009 in country electric wire quality supervision and test center, and this standard is described in detail in material and function, electric pressure, environment for use temperature, use occasion, the test method of physical dimension, use.Low-temperature wind-energy power cable is very different on product quality before this, and a large amount of defective or abominable products flood market, and bring economic loss to the user, the normal operation of serious threat electrical control equipment, electric power system.
Because country constantly increases the demand of regenerative resource, therefore as the low-temperature wind-energy power cable of wind power plant auxiliary products, becoming has the cable of huge market potential new varieties, and exploitation is also invested market.The conductor of low-temperature wind-energy power cable adopts the stranded mode of multiply layering, the pitch range of stranded conductor: strand 21-25 doubly, internal layer: 17-20 doubly, skin: 11-14 doubly, stranding is got different stranding lay ratios by different code names, mobile occasion: lay ratio is not more than 14 times of laying up diameter; Non-moving occasion: lay ratio is not more than 18 times of laying up diameter.The stranded pliability of conductor is good, and torsional resistance is good.Therefore, be widely used in the connection of wind power generation machine rotor or be used for the connection etc. of the inside and outside non-moving power supply of tower.Low-temperature wind-energy power cable has solved the hidden danger of equipment safety operation, has upgraded environmental benefit, has brought economic benefit.The advantage of existing low-temperature wind-energy power cable is: warp resistance.Shortcoming is: long-term reciprocal positive anti-twist on wind power plant is not very long through stranded conductor and conductor wire core life-span, and cable is out of shape easily, causes easily being twisted off.And the reason of these defectives is because stranded conductor pitch is sparse, stranded conductor is not very tight, and the pliability of conductor is general, the pre-torsion when not having positive and negative back twist.
The utility model content
Technical problem to be solved in the utility model provides a kind of safe and reliable, the low-temperature wind-energy power cable of low temperature twist-resistant type.
A kind of low-temperature wind-energy power cable described in the utility model comprises cable core, twines lapping layer outside cable core, and outermost layer extrudes restrictive coating, and cable core is by stranded the forming of rubber packing that extrudes between several wire core and core.
Described core is by stranded conductor and wrapped isolation strip outside stranded conductor thereof, outside the isolation strip again the extruded insulation layer form.
The same layer of stranded conductor employing layering described above is lay configuration in the same way.
As further improvement of the utility model, the stranding rotation direction of described stranded conductor is dextrad, is used for mobile occasion, and laying up pitch is 8-11 times of laying up diameter.
The stranding rotation direction of described stranded conductor is dextrad, is used for non-moving occasion, and laying up pitch is 8-16 times of laying up diameter.
The beneficial effects of the utility model are:
1, warp resistance stranded conductor of the present utility model is to adopt back twist, layer twists in the same way to make and forms together, has soft reciprocal distortion power, in mobile or non-moving occasion process are installed, cable is not yielding, avoid traditional cable owing to move back and forth the damage that conductor is caused, reduced the injury effect to conductor wire core, improved cable anti-property turned round in running.
2, at the lapping layer that becomes the overlapping wrapped non-wet materials in cable core surface to make, non-wet materials can prevent that cable core makes moist under unexpected condition, more can make the wrapped consolidation of cable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, conductor structure is: adopt the soft copper conductor, stranded conductor 1 adopts the same layer of layering stranded in the same way, so strandedly can make stranded conductor have preferably flexibility and warp resistance.Overlapping wrapped isolation strip 2, stranded conductor 1 surface extrudes continuous vulcanization insulating barrier 3 and consists of core.Then the packing 4 that is extruded by rubber bar between four cores and core is stranding together, and the stranding direction is dextrad, laying up pitch: the DN-F type is used for mobile occasion, and pitch is not more than 11 times of laying up diameter; DN-R, DN-RAl type are used for non-moving occasion, and pitch is not more than 16 times of laying up diameter; At the lapping layer 5 that becomes the overlapping wrapped non-wet materials in cable core surface to make, non-wet materials can prevent that cable core makes moist under unexpected condition, more can make the wrapped consolidation of cable.The lapping layer 5 outer restrictive coatings 6 that extrude.
The manufacture method of low-temperature wind-energy power cable: at first conductor is restrainted strand in the same way with layer, then vertical bag separator and insulating barrier continuous vulcanization are carried out simultaneously, secondly stranding is got different stranding lay ratios by different code names, insulated wire cores is stranded clockwise, packing and other auxiliary material that wherein increase rubber bar extrudes between core are wrapped, then extrude the restrictive coating continuous vulcanization.In the utility model, conductor adopts with layer stranded mode in the same way, and the pitch range of strand conductor is dwindled, and pitch range is 8-11 times, and the stranded pliability of conductor is good, warp resistance; The stranding lay ratio is controlled at 8-16 times that is not more than laying up diameter by different code names, the warp resistance stranded conductor is to adopt back twist, layer twists in the same way to make and forms together, has soft reciprocal distortion power, in mobile or non-moving occasion process were installed, cable was not yielding, had avoided traditional cable owing to move back and forth the damage that conductor is caused, minimizing has improved cable anti-property turned round in running to the injury effect of conductor wire core.Cable of the present utility model should stand positive three and turn, and then returns to initial point position, turns three in the other direction again and transfers to once, and number of times is no less than 7300 times.
The utility model provides a kind of thinking and implementation method of low-temperature wind-energy power cable; concrete application approach is a lot; the above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (5)
1. a low-temperature wind-energy power cable comprises cable core, twines lapping layer (5) outside cable core, and outermost layer extrudes restrictive coating (6), it is characterized in that: cable core is by stranded the forming of rubber packing (4) that extrudes between several wire core and core.
2. low-temperature wind-energy power cable according to claim 1, it is characterized in that: described core is by stranded conductor (1) and wrapped isolation strip (2) outside stranded conductor (1) thereof, isolation strip (2) outer again extruded insulation layer (3) forms.
3. low-temperature wind-energy power cable according to claim 2 is characterized in that: the same layer that described stranded conductor (1) adopts layering is lay configuration in the same way.
4. low-temperature wind-energy power cable according to claim 2, it is characterized in that: the stranding rotation direction of described stranded conductor (1) is dextrad, laying up pitch be laying up diameter 8-11 doubly.
5. low-temperature wind-energy power cable according to claim 2, it is characterized in that: the stranding rotation direction of described stranded conductor (1) is dextrad, laying up pitch be laying up diameter 8-16 doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348281 CN202816476U (en) | 2012-07-18 | 2012-07-18 | Low temperature wind energy power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348281 CN202816476U (en) | 2012-07-18 | 2012-07-18 | Low temperature wind energy power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816476U true CN202816476U (en) | 2013-03-20 |
Family
ID=47875321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220348281 Expired - Fee Related CN202816476U (en) | 2012-07-18 | 2012-07-18 | Low temperature wind energy power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737780A (en) * | 2012-07-18 | 2012-10-17 | 江苏金圣电缆有限公司 | Low-temperature wind power cable |
-
2012
- 2012-07-18 CN CN 201220348281 patent/CN202816476U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737780A (en) * | 2012-07-18 | 2012-10-17 | 江苏金圣电缆有限公司 | Low-temperature wind power 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 |
Granted publication date: 20130320 Termination date: 20140718 |
|
| EXPY | Termination of patent right or utility model |