CN105957585A - Insulated bus and preparation method thereof - Google Patents
Insulated bus and preparation method thereof Download PDFInfo
- Publication number
- CN105957585A CN105957585A CN201610303769.XA CN201610303769A CN105957585A CN 105957585 A CN105957585 A CN 105957585A CN 201610303769 A CN201610303769 A CN 201610303769A CN 105957585 A CN105957585 A CN 105957585A
- Authority
- CN
- China
- Prior art keywords
- semi
- conductive layer
- collapsible tube
- insulating barrier
- thickness
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Bodies (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses an insulated bus and a preparation method thereof. The insulated bus is characterized in that the insulated bus comprises a circular tubular conductor and a shrinkable tube which sleeves the circular tubular conductor; the shrinkable tube sequentially comprises a first semi-conductive layer, a plastic insulation layer and a second semi-conductive layer from inside to outside; and the first semi-conductive layer, the plastic insulation layer and the second semi-conductive layer are integrally extrusion-molded by an extruder. The insulated bus of the invention has good insulation and voltage resistance performances.
Description
Technical field
The present invention relates to a kind of isolated bus and preparation method thereof.
Background technology
The insulation processing technology of insulative tubular bus bar products is that multiple link step makes in the market:
1, it is wrapped with semiconductive shielding layer on round tubular electric conductor surface；
2, overlap or wrapping insulation layer on Semiconducting surface layer；
3, it is wrapped with semiconductive shielding layer at surface of insulating layer.
As shown in Figure 1, this processing technology the most all must have space, and also cannot avoid the existence of dust in each layer of manufacturing process, the partial discharge quantity of product, also far above national standard, so has no small potential safety hazard to whole finished product bus on insulation proof voltage.
Summary of the invention
It is an object of the invention to provide a kind of isolated bus and preparation method thereof, to improve the insulation proof voltage performance of isolated bus.
For achieving the above object, the present invention provides a kind of isolated bus, described isolated bus includes round tubular electric conductor and is enclosed within the collapsible tube outside described round tubular electric conductor, described collapsible tube includes that the first semi-conductive layer, Plastic insulating barrier and the second semi-conductive layer, described first semi-conductive layer, Plastic insulating barrier and the second semi-conductive layer are by extruder one extrusion molding the most successively.
Preferably, the thickness of described first semi-conductive layer is 0.4～0.8 millimeter, and the thickness of described Plastic insulating barrier is 7 ~ 8 millimeters, and the thickness of described second semi-conductive layer is 1-1.5 millimeter, a diameter of 60 millimeters of described round tubular electric conductor.
The present invention also provides for the preparation method of a kind of isolated bus, the method includes: a, the first semiconductive material, Plastic insulant and the second semiconductive material is extruded from extruder successively and covers the outside at tubular die, and the outer surface making the first semiconductive material be formed at described tubular die becomes the first semi-conductive layer, making Plastic insulant be formed at outside described first semi-conductive layer becomes Plastic insulating barrier, the outside making the second semiconductive material be formed at described Plastic insulating barrier becomes the second semi-conductive layer, obtains collapsible tube；B, collapsible tube is carried out radiation treatment after, be enclosed within the outside of round tubular electric conductor, then heat described collapsible tube and make described collapsible tube shrink, obtain isolated bus.
Preferably, described first semiconductive granular materials, described Plastic insulating granular material, described second semiconductive granular materials.
Preferably, in step a, the internal diameter of gained collapsible tube is 95-105 millimeter, and the internal diameter of the collapsible tube shunk in step b adapts with described round tubular electric conductor.
Preferably, the thickness of described first semi-conductive layer is 0.4～0.8 millimeter, and the thickness of described Plastic insulating barrier is 7～8 millimeters, and the thickness of described second semi-conductive layer is 1～1.5 millimeter, a diameter of 60 millimeters of described round tubular electric conductor.
The inventive method has the advantage that
Isolated bus of the present invention uses the collapsible tube of one extrusion molding as shell, it is possible to prevent from falling between the first semi-conductive layer, Plastic insulating barrier and the second semi-conductive layer ash, improves the insulation proof voltage performance of isolated bus.
Accompanying drawing explanation
Fig. 1 is a kind of detailed description of the invention of the Wrapping formed isolated bus of prior art.
Fig. 2 is a kind of detailed description of the invention (extrusion molding) of the collapsible tube preparation method of the present invention.
Fig. 3 is the longitudinal section view of isolated bus of the present invention.
Fig. 4 is a kind of detailed description of the invention (contraction) of collapsible tube preparation method of the present invention.
Detailed description of the invention
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
Embodiment 1
As shown in Figure 2, by the first semiconductive material granule, Plastic insulating material particle and the second semiconductive material granule add hot-extrudable successively from extruder and cover the outside at tubular die, and the outer surface making the first semiconductive material be formed at described tubular die becomes the first semi-conductive layer, making Plastic insulant be formed at outside described first semi-conductive layer becomes Plastic insulating barrier, the outside making the second semiconductive material be formed at described Plastic insulating barrier becomes the second semi-conductive layer, obtain the collapsible tube that internal diameter is 95 millimeters, the thickness of the first semi-conductive layer is 0.4 millimeter, the thickness of described Plastic insulating barrier is 8 millimeters, the thickness of described second semi-conductive layer is 1.5 millimeters.
As shown in Figure 4, after collapsible tube is carried out radiation treatment, it is enclosed within the outside of the round tubular electric conductor of a diameter of 60 millimeters, then is heated to making described collapsible tube shrink to it, obtains isolated bus as shown in Figure 3.
Measuring the proof voltage of isolated bus of the present invention, as a example by 12KV product, power frequency 1min withstanding voltage of dispatching from the factory can reach 50KV and passes through, and the Apparent discharge magnitude that product is under 1.05Um/ √ 3 voltage is again smaller than 5PC, higher than the congener isolated bus on market.
Although, the present invention is described in detail to have used general explanation and specific embodiment, but on the basis of the present invention, can make some modifications or improvements it, and this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (5)
1. an isolated bus, it is characterized in that, described isolated bus includes round tubular electric conductor and is enclosed within the collapsible tube outside described round tubular electric conductor, described collapsible tube includes that the first semi-conductive layer, Plastic insulating barrier and the second semi-conductive layer, described first semi-conductive layer, Plastic insulating barrier and the second semi-conductive layer are by extruder one extrusion molding the most successively.
Isolated bus the most according to claim 1, it is characterized in that, the thickness of described first semi-conductive layer is 0.4～0.8 millimeter, and the thickness of described Plastic insulating barrier is 7～8 millimeters, the thickness of described second semi-conductive layer is 1～1.5 millimeter, a diameter of 60 millimeters of described round tubular electric conductor.
3. the preparation method of an isolated bus, it is characterized in that, the method includes: a, the first semiconductive material, Plastic insulant and the second semiconductive material is extruded from extruder successively and covers the outside at tubular die, and the outer surface making the first semiconductive material be formed at described tubular die becomes the first semi-conductive layer, making Plastic insulant be formed at outside described first semi-conductive layer becomes Plastic insulating barrier, the outside making the second semiconductive material be formed at described Plastic insulating barrier becomes the second semi-conductive layer, obtains collapsible tube；B, collapsible tube is carried out radiation treatment after, be enclosed within the outside of round tubular electric conductor, then heat described collapsible tube and make described collapsible tube shrink, obtain isolated bus.
Preparation method the most according to claim 3, it is characterised in that in step a, the internal diameter of gained collapsible tube is 95 ~ 105 millimeters, the internal diameter of the collapsible tube shunk in step b adapts with described round tubular electric conductor.
Preparation method the most according to claim 3, it is characterized in that, the thickness of described first semi-conductive layer is 0.4～0.8 millimeter, and the thickness of described Plastic insulating barrier is 7～8 millimeters, the thickness of described second semi-conductive layer is 1～1.5 millimeter, a diameter of 60 millimeters of described round tubular electric conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303769.XA CN105957585A (en) | 2016-05-09 | 2016-05-09 | Insulated bus and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303769.XA CN105957585A (en) | 2016-05-09 | 2016-05-09 | Insulated bus and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105957585A true CN105957585A (en) | 2016-09-21 |
Family
ID=56913940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610303769.XA Pending CN105957585A (en) | 2016-05-09 | 2016-05-09 | Insulated bus and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105957585A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4411328A1 (en) * | 1994-03-25 | 1995-09-28 | Wolfgang Prof Dipl I Broesicke | Improved thermal capacity busbar/conductor |
| CN102376402A (en) * | 2010-08-24 | 2012-03-14 | 上海嘉盟电力设备有限公司 | Heat shrinkage bush |
| CN105261418A (en) * | 2015-11-10 | 2016-01-20 | 江苏士林电气设备有限公司 | A three-layer co-extrusion ethylene-propylene high-voltage insulating tube bus |
| CN205666079U (en) * | 2016-05-09 | 2016-10-26 | 浙江睿智电气科技有限公司 | Insulating bus bar |
-
2016
- 2016-05-09 CN CN201610303769.XA patent/CN105957585A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4411328A1 (en) * | 1994-03-25 | 1995-09-28 | Wolfgang Prof Dipl I Broesicke | Improved thermal capacity busbar/conductor |
| CN102376402A (en) * | 2010-08-24 | 2012-03-14 | 上海嘉盟电力设备有限公司 | Heat shrinkage bush |
| CN105261418A (en) * | 2015-11-10 | 2016-01-20 | 江苏士林电气设备有限公司 | A three-layer co-extrusion ethylene-propylene high-voltage insulating tube bus |
| CN205666079U (en) * | 2016-05-09 | 2016-10-26 | 浙江睿智电气科技有限公司 | Insulating bus bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160921 |
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| RJ01 | Rejection of invention patent application after publication |