CN201508719U - Novel shielding type power cable - Google Patents
Novel shielding type power cable Download PDFInfo
- Publication number
- CN201508719U CN201508719U CN2009201871413U CN200920187141U CN201508719U CN 201508719 U CN201508719 U CN 201508719U CN 2009201871413 U CN2009201871413 U CN 2009201871413U CN 200920187141 U CN200920187141 U CN 200920187141U CN 201508719 U CN201508719 U CN 201508719U
- Authority
- CN
- China
- Prior art keywords
- wire
- type power
- power cable
- conductor
- core
- 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 - Fee Related
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 25
- 230000004888 barrier function Effects 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000004132 cross linking Methods 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 230000008029 eradication Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000001125 extrusion Methods 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
A novel shielding type power cable is characterized in that a conductor is composed of a single flexible copper wire or a plurality of flexible copper wires which are inter-twisted, an insulating layer formed on the conductor through extrusion forms an insulating wire core, a cable core is composed of the single insulating line core or a cable core is composed of a plurality of insulating line cores which are twisted, a shielding layer composed of a lining layer, a space metal wire and an overlapped cover lapped copper belt layer through extrusion and an outer sheath layer formed through extrusion are respectively arranged on the outer layer of the cable core. The novel shielding type power cable optimizes a product structure, has excellent electric performance, has electromagnetic interference resistance performance simultaneously, improves the safety and the reliability of a power system, improves the power transmission quality, and is more suitable for demands of present high quality power transmission and power transmission systems.
Description
Technical field
The utility model relates to electric power transmission ﹠ distribution cable, relates in particular to a kind of novel shield type power cable, belongs to technical field of electric wires and cables.
Background technology
Under the particularity occasion, electrical equipment has the requirement of higher quality to the quality of the electric energy that needs transmission ﹠ distribution, and the cable that the transmission ﹠ distribution electric energy is connected need have anti-electromagnetic interference performance.The most employings of China's electrical equipment " three-phase five-wire mode " i.e. at present are three phase lines, a ground wire, zero lines; Or " three-phase four-wire system ", promptly adopt three phase lines to add the zero line power supply." three-phase five-wire mode " Duos a ground wire than " three-phase four-wire system ", and it is higher to be used for safety requirements, and equipment requirements is unified the place of ground connection.Cable if desired has shielding properties again, designs irrational words, then increases the cables manufacturing cost, is unfavorable for the principle that economizes on resources.
According to the needs of cable feature, the screen of shield type cable can be used as the zero line of cable, in particular cases, also can be used as the loop ground wire, have the effect of zero line or ground wire, have shielding properties simultaneously, reduce manufacturing cost, optimized product structure design, accelerated the marketing of product.The screen of shielded type cable in the market is most, and such result is that shielding is unsatisfactory in order to dredge around wire, is not suitable for using under the occasion of higher shield effectiveness.
Summary of the invention
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of novel shield type power cable is provided, makes it have anti-electromagnetic interference performance, improve the fail safe and the reliability of electric power system, improve the transmission of electricity quality, be more suitable for the requirement of current high-quality transmission of electricity, power transformation system.
The utility model technical solution problem adopts following technical scheme:
The design feature of the utility model shield type power cable is that conductor is made of single soft copper silk or many soft copper skein silks close and form, the insulating barrier that extrudes formation on conductor constitutes insulated wire cores, constitute cable core or constitute cable core by single insulated wire cores, extrude the type inner covering respectively at the cable core skin, dredge around wire and the overlapping screen that wrapped copper strips layer constitutes, the external sheath layer that extrudes formation put up by the stranded stranding of many eradications edge core.
Described insulating barrier adopts PVC insulating material, XLPE material, ethylene-propylene rubber material or cross-linking radiation polyolefine material.
Described inner covering is that semiconductive type high polymer compound extrudes and forms.
It is described that to dredge around wire be the electrician with bare copper wire or tinned copper wire.
Described dredging around wire and the total effective cross-section of copper strips layer is not less than half that cross-sectional area of conductor amasss.
Described restrictive coating is the PVC protective cover material; Or materials such as low-smoke halogen-free polyolefin, thermoplastic elastomer sheath material extrude and form.
Compared with the prior art, the utility model beneficial effect is embodied in:
The setting of the utility model ad hoc structure makes it have anti-electromagnetic interference performance, has improved the fail safe and the reliability of electric power system, improves the transmission of electricity quality, is more suitable for the requirement of current high-quality transmission of electricity, power transformation system.Specifically comprise:
1, the screen in the utility model has adopted wire to dredge winding technologe, than weaving efficient height, processes also easily, can conveniently control simultaneously the net sectional area of screen;
2, increase the composite shielding of the wrapped formation of copper strips in the utility model screen, improved the cable shield effect; Shield total effective cross-section and be not less than half that cross-sectional area of conductor amasss, improved short circuit current overload capacity;
3, the utility model insulating barrier employing PVC insulating material or XLPE material, ethylene-propylene rubber material, cross-linking radiation polyolefine material all are the most frequently used materials of present cable, do not influence cable cost and difficulty of processing;
4, the utility model inner covering adopts semiconductive type high polymer compound, and a side has the inner covering role, and it has excellent electrical properties on the other hand, has improved cable electrical property quality;
5, oversheath employing PVC protective cover material in the utility model, or low cigarette, halogen-free polyolefin; Materials such as thermoplastic elastomer sheath material extrude and form, and its mechanical property of materials height, material are easy to get, and also are cable materials commonly used, reduce the cables manufacturing cost.
Description of drawings
Fig. 1 is the utility model three-hole construction of cable schematic diagram.
Among Fig. 1: 1 conductor; 2 insulating barriers; 3 inner coverings; 4 dredge around wire; 5 copper strips layers; 6 external sheath layers.
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
Embodiment
Referring to Fig. 1, in the present embodiment, conductor 1 is made of single soft copper silk or many soft copper skein silks close and form, the insulating barrier 2 that extrudes formation on conductor constitutes insulated wire cores, constitute cable core or constitute cable core by single insulated wire cores, extrude type inner covering 3 respectively at the cable core skin, dredge around wire 4 and the overlapping screen that wrapped copper strips layer 5 constitutes, the external sheath layer 6 that extrudes formation put up by the stranded stranding of many eradications edge core.
In concrete the enforcement, insulating barrier 2 adopts PVC insulating material, XLPE material, ethylene-propylene rubber material or cross-linking radiation polyolefine material; Inner covering 3 forms for semiconductive type high polymer compound extrudes; Dredging around wire 4 is the electrician with bare copper wire or tinned copper wire; Dredge half that is not less than conductor 1 sectional area around wire 4 and copper strips layer 5 total effective cross-section; Restrictive coating 6 is the PVC protective cover material; Or materials such as low-smoke halogen-free polyolefin, thermoplastic elastomer sheath material extrude and form.
Claims (5)
1. novel shield type power cable, it is characterized in that conductor (1) is made of single soft copper silk or many soft copper skein silks close and form, the insulating barrier (2) that extrudes formation on conductor constitutes insulated wire cores, constitute cable core or constitute cable core by single insulated wire cores, extrude type inner covering (3) respectively at the cable core skin, dredge, extrude the external sheath layer (6) of formation around wire (4) and the overlapping screen of putting up wrapped copper strips layer (5) formation by the stranded stranding of many eradications edge core.
2. novel shield type power cable according to claim 1 is characterized in that described insulating barrier (2) adopts PVC insulating material, XLPE material, ethylene-propylene rubber material or cross-linking radiation polyolefine material.
3. novel shield type power cable according to claim 1 is characterized in that described inner covering (3) forms for semiconductive type high polymer compound extrudes.
4. novel shield type power cable according to claim 1, it is characterized in that described dredge around wire (4) for the electrician with bare copper wire or tinned copper wire.
5. novel shield type power cable according to claim 1, it is characterized in that described dredge around wire (4) and copper strips layer (5) always effective cross-section be not less than half of conductor (1) sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201871413U CN201508719U (en) | 2009-08-26 | 2009-08-26 | Novel shielding type power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201871413U CN201508719U (en) | 2009-08-26 | 2009-08-26 | Novel shielding type power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201508719U true CN201508719U (en) | 2010-06-16 |
Family
ID=42469844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201871413U Expired - Fee Related CN201508719U (en) | 2009-08-26 | 2009-08-26 | Novel shielding type power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201508719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882482A (en) * | 2010-06-30 | 2010-11-10 | 天津市万博线缆有限公司 | High-voltage cable for X-ray machine |
-
2009
- 2009-08-26 CN CN2009201871413U patent/CN201508719U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882482A (en) * | 2010-06-30 | 2010-11-10 | 天津市万博线缆有限公司 | High-voltage cable for X-ray machine |
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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: 20100616 Termination date: 20140826 |
|
| EXPY | Termination of patent right or utility model |