CN2450754Y - Semi-conductive buffer band for power cable - Google Patents
Semi-conductive buffer band for power cable Download PDFInfo
- Publication number
- CN2450754Y CN2450754Y CN 00260413 CN00260413U CN2450754Y CN 2450754 Y CN2450754 Y CN 2450754Y CN 00260413 CN00260413 CN 00260413 CN 00260413 U CN00260413 U CN 00260413U CN 2450754 Y CN2450754 Y CN 2450754Y
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- China
- Prior art keywords
- semi
- conductive
- power cable
- rubber
- buffer band
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- Expired - Fee Related
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Abstract
The utility model relates to a semi-conductive buffer band for a power cable. Material is required in the process of power cable manufacture; the material can play a semi-conductive shielding function, and accordingly, an electric field is buffered; the material can also be lined on the inner side of a metal sheath to buffer friction between an inner sheath and the metal sheath; simultaneously, the material can form a compact protective layer to play a compact function under the action of high temperature when squeezed and shaped to be a cable. The utility model meets the requirements. The utility model is characterized in that the utility model is formed in a mode that the utility model is pressed or coated with a layer semi-conductive rubber after semi-conductive adhesive is adhered on base material. The utility model is used for electric buffering of the power cable and mechanical buffering.
Description
The utility model relates to a kind of semi-conductive buffer material, particularly a kind of power cable semi-conductive buffer band.
Power cable is in operation, and the cable core electric current can produce powerful electric field, if there is moisture to infiltrate insulating barrier, forms water tree, will discharge by the fault location in sheath, causes cable breakdown.This just needs a kind of semiconductive material with the character of blocking water, and it can produce the semi-conductive screen effect, thus the buffering electric field; Have wearing and tearing scratch phenomenon because the cable inner sheath directly contacts with metallic sheath again, this just needs a kind of resistant to elevated temperatures padded coaming wrapping between sheath, makes cable avoid directly wearing and tearing scratch in the high temperature extrusion moulding, thereby has the mechanical damping effect.For addressing the above problem, the practice in the past is to adopt semi-conductive tape or semiconductive shielding layer to alleviate electric field, or solves mechanical damping to fill cushion, but all can only cushion or the mechanical damping problem by single solution electric field, can not satisfy above-mentioned requirements fully.
The purpose of this utility model is to provide a kind of semi-conductive buffer material; not only has the buffering effect of electric field; again can liner in the metallic sheath inboard, cushion between hard sheath and rub, and under the high temperature action of extrusion molding stranding, utilize the viscoplasticity of buffer strip semi-conductive rubber to form fine and close protective layer.
The utility model is realized by following measure:
This semi-conductive buffer band is evenly to adhere to semi-conductive adhesive to form semiconductive cloth on base material, rolls or coating one deck semi-conductive rubber again, cuts on demand to form.Wherein base material is the smooth base cloth with tensile strength and resistance to elevated temperatures, can be nylon cloth, woven dacron or cotton.Semi-conductive adhesive can be the adhesive that any one and the conductive carbon black in acrylic acid ester emulsion, acetate emulsion, the styrene-butadiene latex formed, and also can be the adhesive of any one and conductive carbon black and solvent composition in butyl rubber, butadiene-styrene rubber, acrylonitrile-butadiene rubber, the natural rubber.Semi-conductive rubber is made up of any one or mixture in butyl rubber and Oppanol, butadiene-styrene rubber, acrylonitrile-butadiene rubber, the natural rubber and conductive carbon black.
The adherence method of base material and semi-conductive adhesive can pad dyeing, dipping, also can apply.
The adherence method of semiconductive cloth and semi-conductive rubber can be calendering or coating.
The utility model compared with prior art, its advantage is, it not only has electric field buffering, mechanical damping effect, also has liner effect and compaction.And production technology is simple, and technical performance is stable, has practicality, thereby can guarantee the safe operation of cable, increases the service life.
The drawing of accompanying drawing is described as follows:
Accompanying drawing is the cross section structure figure of the utility model power cable with the semi-conductive buffer band, and wherein (1) is base material; (2) be semi-conductive adhesive; (3) be semi-conductive rubber.
Below in conjunction with accompanying drawing the utility model is further described:
Go up at nylon cloth (1) and evenly to apply the semi-conductive adhesive that contains acrylic acid ester emulsion and conductive carbon black, roll one deck semiconductive butyl rubber (3) again after, constitute semi-conductive buffer cloth, be the semi-conductive buffer band after cutting arrangement.Performance index: sheet resistance 1000 Ω, volume resistance 8.7 * 10
5Ω cm, tensile strength 187N/1.5cm.
Claims (6)
1. a power cable semi-conductive buffer band is characterized in that, it is after evenly adhering to semi-conductive adhesive (2) on the base material (1), again semi-conductive rubber (3) is rolled or is coated with shoe and form in the above.
2. power cable semi-conductive buffer band according to claim 1 is characterized in that, its base material (1) can be that the smooth base cloth with tensile strength and resistance to elevated temperatures is formed.
3. power cable semi-conductive buffer band according to claim 1 and 2 is characterized in that its base material can be any one in nylon cloth, woven dacron or the cotton.
4. power cable semi-conductive buffer band according to claim 1, it is characterized in that, the adhesive that its semi-conductive adhesive (2) is made up of any one and conductive carbon black in acrylic acid ester emulsion, acetate emulsion, the styrene-butadiene latex also can be the adhesive of any one and conductive carbon black and solvent composition in butyl rubber, butadiene-styrene rubber, acrylonitrile-butadiene rubber, the natural rubber.
5. power cable semi-conductive buffer band according to claim 1, the semi-conductive rubber (3) that it is characterized in that it is made up of any one or mixture in butyl rubber and polyisobutene glue, butadiene-styrene rubber, acrylonitrile-butadiene rubber, the natural rubber and conductive carbon black.
6. power cable semi-conductive buffer band according to claim 1 is characterized in that, its base material (1) can be pad dyeing, flood or be coated with shoe in the adhering mode of semi-conductive adhesive (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00260413 CN2450754Y (en) | 2000-11-24 | 2000-11-24 | Semi-conductive buffer band for power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00260413 CN2450754Y (en) | 2000-11-24 | 2000-11-24 | Semi-conductive buffer band for power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2450754Y true CN2450754Y (en) | 2001-09-26 |
Family
ID=33616220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00260413 Expired - Fee Related CN2450754Y (en) | 2000-11-24 | 2000-11-24 | Semi-conductive buffer band for power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2450754Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013286A (en) * | 2010-09-16 | 2011-04-13 | 沈阳天荣电缆材料有限公司 | Semi-conductive buffer watertight lashing band and production method thereof |
| CN102941908A (en) * | 2012-12-16 | 2013-02-27 | 王崇高 | Movable ceiling and air bag for folding houseboat |
| CN103008181A (en) * | 2012-12-06 | 2013-04-03 | 苏州市新广益电子有限公司 | Device for preventing acrylate adhesive from gelating |
| CN103612461A (en) * | 2013-11-27 | 2014-03-05 | 江苏中超电缆股份有限公司 | Graphene composite semiconductive strip material for cables and preparation method thereof |
| CN112038001A (en) * | 2020-08-27 | 2020-12-04 | 尚纬股份有限公司 | Manufacturing method of single-phase alternating current fireproof high-voltage cable for railway engineering |
-
2000
- 2000-11-24 CN CN 00260413 patent/CN2450754Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013286A (en) * | 2010-09-16 | 2011-04-13 | 沈阳天荣电缆材料有限公司 | Semi-conductive buffer watertight lashing band and production method thereof |
| CN102013286B (en) * | 2010-09-16 | 2012-06-20 | 沈阳天荣电缆材料有限公司 | Semi-conductive buffer watertight lashing band and production method thereof |
| CN103008181A (en) * | 2012-12-06 | 2013-04-03 | 苏州市新广益电子有限公司 | Device for preventing acrylate adhesive from gelating |
| CN102941908A (en) * | 2012-12-16 | 2013-02-27 | 王崇高 | Movable ceiling and air bag for folding houseboat |
| CN103612461A (en) * | 2013-11-27 | 2014-03-05 | 江苏中超电缆股份有限公司 | Graphene composite semiconductive strip material for cables and preparation method thereof |
| CN103612461B (en) * | 2013-11-27 | 2016-09-28 | 江苏中超电缆股份有限公司 | Cable graphene composite semiconductive strip material and preparation method thereof |
| CN112038001A (en) * | 2020-08-27 | 2020-12-04 | 尚纬股份有限公司 | Manufacturing method of single-phase alternating current fireproof high-voltage cable for railway engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |