CN201383379Y - Silicone rubber insulation medium-voltage special cable - Google Patents
Silicone rubber insulation medium-voltage special cable Download PDFInfo
- Publication number
- CN201383379Y CN201383379Y CN200920080112U CN200920080112U CN201383379Y CN 201383379 Y CN201383379 Y CN 201383379Y CN 200920080112 U CN200920080112 U CN 200920080112U CN 200920080112 U CN200920080112 U CN 200920080112U CN 201383379 Y CN201383379 Y CN 201383379Y
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- shielding layer
- silicon rubber
- cable
- special cable
- rubber insulation
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Abstract
The utility model discloses a silicone rubber insulation medium-voltage special cable, which comprises a cable conductor, a shielding layer and an external jacket, wherein the shielding layer comprises an internal shielding layer, an external shielding layer and a copper wire knitting shielding layer; the internal shielding layer is arranged outside the cable conductor; an insulating layer is arranged outside the internal shielding layer; the external shielding layer is arranged outside the insulating layer; the copper wire knitting shielding layer is arranged outside the external shielding layer; and an adhesive tape layer is arranged between the copper wire knitting shielding layer and the external jacket. The special cable has high insulation resistance rate and can keep the insulation resistance rate steady with wide temperature and frequency ranges; meanwhile, the special cable has good resistance to the high voltage corona discharge and the arc discharge, has the characteristics of high temperature resistance, excellent electrical property and radiation resistance.
Description
Technical field
The utility model relates to a kind of cable, relates in particular in a kind of silicon rubber insulation and presses special cable, and the mobile power of middle pressure that closes applicable to high-radiation fields such as nuclear power stations transmits.
Background technology
In the prior art, general rubber cover midium voltage cable all takes ethylene-propylene rubber as insulating barrier, and the high-temperature resistant grade of ethylene-propylene rubber is 150 ℃.On some extraordinary devices such as machinery, mine, temperature resistant grade requires will be above 150 ℃, on the power transmission line of some extraordinary mobile power set of industries such as the very high lifting of ambient temperature, transportation, ladle bucket reel, machinery, electric, mine, the temperature resistant grade of ethylene-propylene rubber does not just reach requirement, and is more prone to breakdown for midium voltage cable in this high temperature occasion.And it is also not ideal enough to adopt ethylene-propylene rubber to penetrate performance as its anti-width of cloth of insulating barrier.
The utility model content
The purpose of this utility model is to overcome the problems referred to above that existing midium voltage cable exists, provide in a kind of silicon rubber insulation and press special cable, the utlity model has very high insulation resistivity and in very wide temperature and frequency range, can keep stable, simultaneously high-voltage corona discharge and arc discharge are had good repellence, have characteristics high temperature resistant, that electrical property is excellent and the anti-width of cloth is penetrated.
For achieving the above object, the technical solution adopted in the utility model is as follows:
Press special cable in a kind of silicon rubber insulation, comprise cable core, screen and oversheath, it is characterized in that: described screen comprises internal shield, outer shielding layer and copper wire woven shield, described cable core is outward an internal shield, internal shield is outside equipped with insulating barrier, insulating barrier is outward an outer shielding layer, and outer shielding layer is outward the copper wire woven shield, is provided with the adhesive plaster belt between copper wire woven shield and the oversheath.
Described cable core is by many stranded formation of core.
Described internal shield is the inside and outside semiconductive internal shield of silicon rubber.
Described outer shielding layer is the inside and outside semiconductive outer shielding layer of silicon rubber.
Described insulating barrier is a silicone rubber insulation layer.
Described oversheath is the silicon rubber oversheath.
Adopt advantage of the present utility model to be:
One, the utility model screen comprises internal shield, outer shielding layer and copper wire woven shield, described cable core is outward an internal shield, internal shield is outside equipped with insulating barrier, insulating barrier is outward an outer shielding layer, outer shielding layer is outward the copper wire woven shield, be provided with the adhesive plaster belt between copper wire woven shield and the oversheath, adopt the cable of said structure to have very high insulation resistivity and in very wide temperature and frequency range, can keep stable, simultaneously high-voltage corona discharge and arc discharge had good repellence, have high temperature resistant and the electrical property excellent characteristics, thermal conductivity and radiation resistance are better.
Two, the utility model has been broken through the use temperature resistant grade of cable on the extraordinary mobile power transmissions such as machinery, mine, applicable on some extraordinary devices such as machinery, mine and the mobile power transmission of middle pressure of closing of high-radiation field such as nuclear power station use, applied range, compare with existing similar cable, prolonged useful life and improved usage safety performance.
Three, the utility model cable core adopts the stranded structure of pressing by many stranded formation of core, the electric conductivity excellence, and resistance reaches the GB/T3956 requirement; Adopt internal shield and outer shielding layer, make electric field even; Insulating barrier is a silicone rubber insulation layer, and oversheath is the silicon rubber oversheath, and performances such as the temperature resistant grade of raising cable and radiation hardness reach the electric pressure requirement, satisfy extraordinary occasion demand.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, cable core, 2, internal shield, 3, insulating barrier, 4, outer shielding layer, 5, the copper wire woven shield, 6, the adhesive plaster belt, 7, oversheath.
Embodiment
Press special cable in a kind of silicon rubber insulation, comprise cable core 1, screen and oversheath, screen comprises internal shield 2, outer shielding layer 4 and copper wire woven shield 5, outside the described cable core 1 is internal shield 2, internal shield 2 is outside equipped with insulating barrier 3, outside the insulating barrier 3 is outer shielding layer 4, is copper wire woven shield 5 outside the outer shielding layer 4, is provided with adhesive plaster belt 6 between copper wire woven shield 5 and the oversheath 7.
In the utility model, cable core 1 is by many stranded formation of core.Internal shield 2 is set to semiconductive internal shield inside and outside the silicon rubber.Outer shielding layer 4 is set to semiconductive outer shielding layer inside and outside the silicon rubber.Insulating barrier 3 is set to silicone rubber insulation layer.Oversheath 7 is set to the silicon rubber oversheath.
8.7/10 kilovolt of the utility model rated voltage, cable core cross-section amasss 185 mm sqs.The core conductor adopts GB/T3956 standard annealed copper line, and internal shield extrudes 0.8 millimeter of thickness, and insulating barrier extrudes 5.5 millimeters of thickness; Outer shielding layer extrudes 0.8 millimeter of thickness, and copper wire woven shield count adopts the thick rubberized tape ply of 0.2mm wrapped greater than 80%, and heat-resisting silicone rubber jacket extrudes thickness 2.2mm.Braiding brass wire diameter and oversheath thickness change according to the outside diameter of cable.
Above-described only is preferred implementation of the present utility model.Should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model principle; need not the technical characterictic that the process creative work just can be associated; can also make some modification and improvement; these variations obviously all should be considered as equivalent feature, still belong within the protection range of the utility model patent.
Claims (6)
1, presses special cable in a kind of silicon rubber insulation, comprise cable core (1), screen and oversheath (7), it is characterized in that: described screen comprises internal shield (2), outer shielding layer (4) and copper wire woven shield (5), described cable core (1) is outer to be internal shield (2), internal shield (2) is outside equipped with insulating barrier (3), insulating barrier (3) is outer to be outer shielding layer (4), outer shielding layer (4) is outer to be copper wire woven shield (5), is provided with adhesive plaster belt (6) between copper wire woven shield (5) and the oversheath (7).
2, press special cable in the silicon rubber insulation according to claim 1, it is characterized in that: described cable core (1) is by many stranded formation of core.
3, press special cable in the silicon rubber insulation according to claim 1 and 2, it is characterized in that: described internal shield (2) is the inside and outside semiconductive internal shield of silicon rubber.
4, press special cable in the silicon rubber insulation according to claim 1 and 2, it is characterized in that: described outer shielding layer (4) is the inside and outside semiconductive outer shielding layer of silicon rubber.
5, press special cable in the silicon rubber insulation according to claim 1 and 2, it is characterized in that: described insulating barrier (3) is a silicone rubber insulation layer.
6, press special cable in the silicon rubber insulation according to claim 1 and 2, it is characterized in that: described oversheath (7) is the silicon rubber oversheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920080112U CN201383379Y (en) | 2009-04-09 | 2009-04-09 | Silicone rubber insulation medium-voltage special cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920080112U CN201383379Y (en) | 2009-04-09 | 2009-04-09 | Silicone rubber insulation medium-voltage special cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383379Y true CN201383379Y (en) | 2010-01-13 |
Family
ID=41526851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920080112U Expired - Fee Related CN201383379Y (en) | 2009-04-09 | 2009-04-09 | Silicone rubber insulation medium-voltage special cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383379Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065717A (en) * | 2013-01-23 | 2013-04-24 | 江苏亨通电力电缆有限公司 | 6kV-35kV rated-voltage ceramic silicon rubber insulation medium-voltage fire-resistant frequency converter cable and process |
-
2009
- 2009-04-09 CN CN200920080112U patent/CN201383379Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065717A (en) * | 2013-01-23 | 2013-04-24 | 江苏亨通电力电缆有限公司 | 6kV-35kV rated-voltage ceramic silicon rubber insulation medium-voltage fire-resistant frequency converter cable and process |
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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: 20100113 Termination date: 20150409 |
|
| EXPY | Termination of patent right or utility model |