CN203070802U - Insulating tubular bus - Google Patents
Insulating tubular bus Download PDFInfo
- Publication number
- CN203070802U CN203070802U CN 201320039944 CN201320039944U CN203070802U CN 203070802 U CN203070802 U CN 203070802U CN 201320039944 CN201320039944 CN 201320039944 CN 201320039944 U CN201320039944 U CN 201320039944U CN 203070802 U CN203070802 U CN 203070802U
- Authority
- CN
- China
- Prior art keywords
- buffer layer
- semi
- tubular bus
- insulating
- conductive buffer
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims abstract description 3
- 230000004888 barrier function Effects 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 17
- 239000011229 interlayer Substances 0.000 description 6
- 230000002500 effect on skin Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model discloses an insulating tubular bus, which comprise a tubular conductor. The tubular conductor is externally coated with a first semiconductive buffer layer. The first semiconductive buffer layer is externally coated with an insulating layer formed in an integrated extrusion moulding casting manner. The insulating layer formed is externally coated with a second semiconductive buffer layer. The second semiconductive buffer layer is externally coated with a grounded shielding layer. The shielding layer is externally provided with a sleeve. According to the insulating tubular bus, the first semiconductive buffer layer is additionally arranged between the tubular conductor and the insulating layer, and the second semiconductive buffer layer is additionally arranged between the insulating layer and the shielding layer, so that a problem that a stress which is generated as an original insulating tubular bus expands with heat and contracts with cold in use can crack an insulating layer easily is effectively solved. In addition, the insulating layer is formed into one piece, so that problems that as the original insulating tubular bus adopts layered winding, air bubbles and impurities can be easily generated between wrapping layers and sliding can easily occur between wrapping layers are solved. The insulating tubular bus is reasonable in structure and easy to realize.
Description
Technical field
The utility model relates to a kind of insulation tubular bus.
Background technology
At present, in the change of electric power system, power distribution station, the bus that the main transformer low-pressure side is used mainly is rectangular bus bar, what adopt is multi-slice rectangle conductor, increasing along with transforming plant main transformer depressor capacity, transformer low voltage side bus rated current constantly increases, and rectangular bus bar has been difficult to satisfy bus heating and electrodynamic requirement technically with on the structure because its skin effect coefficient is big, bending strength is low.At this kind problem, the insulation tubular bus had appearred in recent years, its skin effect coefficient is little, mechanical strength is high, solved the deficiency of rectangular bus bar, yet, existing insulation tubular bus, its insulating barrier directly is coated on the tubular conductor, because the difference of thermal expansion coefficients of conductor and insulating barrier is very big, the stress that in use expands with heat and contract with cold easily causes insulating barrier cracked, and the insulating barrier of existing insulation tubular bus twines for adopting teflon oriented film layering, and it holds interlayer and easily produces bubble, impurity, and interlayer easily slides, thereby makes insulation effect relatively poor.
The utility model content
The purpose of this utility model is at the problems referred to above, a kind of insulation tubular bus is provided, directly be coated on the tubular conductor to solve the tubular bus insulation layer of existing insulation, the stress that in use expands with heat and contract with cold easily causes the cracked problem of insulating barrier, and the insulating barrier layering of existing insulation tubular bus is twined, hold interlayer and easily produce bubble, impurity, interlayer easily slides, and causes the problem of insulation effect difference.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of insulation tubular bus, comprise tubular conductor, the outside of described tubular conductor coats and is provided with the first semi-conductive buffer layer, the outside of the described first semi-conductive buffer layer coats and is provided with integrated insulating barrier, the outside coating of described insulating barrier is provided with the second semi-conductive buffer layer, the outside screen that is provided with ground connection that coats of the described second semi-conductive buffer layer, described screen outer setting has sleeve pipe.
Further, the described tubular conductor copper pipe that is hollow-core construction or the alloy aluminum pipe of hollow-core construction.
Further, described sleeve pipe is heat-shrinkable T bush or is formed by resin material cast.
Further, described insulating barrier is extruded moulding by casting by modified resin integral body.
Further, the material of the described first semi-conductive buffer layer and the second semi-conductive buffer layer is EVA, the composite polyethylene material that is added with conductive carbon black.
The beneficial effects of the utility model are, described insulation tubular bus is by setting up the first semi-conductive buffer layer between tubular conductor and insulating barrier, and between insulating barrier and screen, set up the second semi-conductive buffer layer, efficiently solve original insulation tubular bus stress that in use expands with heat and contract with cold and easily cause the cracked problem of insulating barrier, in addition, insulating barrier is formed in one, having solved original insulation tubular bus layering twines, hold interlayer and easily produce bubble, impurity, and the problem that interlayer easily slides, rational in infrastructure, be easy to realize.
Description of drawings
Fig. 1 is the structural representation of a kind of tubular bus that insulate of the utility model.
Among the figure:
1, tubular conductor; 2, the first semi-conductive buffer layer; 3, insulating barrier; 4, heat-shrinkable T bush; 5, screen; 6, the second semi-conductive buffer layer.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
Please refer to shown in Figure 1ly, Fig. 1 is the structural representation of a kind of tubular bus that insulate of the utility model; In present embodiment, a kind of insulation tubular bus, comprise tubular conductor 1, described tubular conductor 1 is the copper pipe of hollow-core construction, its outside coating is provided with the first semi-conductive buffer layer 2, the material of the described first semi-conductive buffer layer 2 is the EVA that is added with conductive carbon black, composite polyethylene material, its outside coating is provided with integrated insulating barrier 3, described insulating barrier 3 is by the integrated poured moulding of modified resin, its outside coating is provided with the second semi-conductive buffer layer 6, the material of the described second semi-conductive buffer layer 6 is the EVA that is added with conductive carbon black, composite polyethylene material, its outside screen 5 that is provided with ground connection that coats, described screen 5 outer setting have heat-shrinkable T bush 4.
Insulating barrier 3 of the present utility model is formed in one, need not artificial winding, improved production efficiency, the product human factor is few, and steady quality is reliable, and sets up the first semi-conductive buffer layer 2 between tubular conductor 1 and the insulating barrier 3, set up the second semi-conductive buffer layer 6 between insulating barrier 3 and the screen 5, stopped the expanded with heat and contract with cold problem of stress fragmentation of insulating barrier 3 in use, rational in infrastructure, be easy to realize.
Above embodiment has just set forth basic principle of the present utility model and characteristic; the utility model is not limited by above-described embodiment; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
- One kind the insulation tubular bus, it is characterized in that: comprise tubular conductor, the outside of described tubular conductor coats and is provided with the first semi-conductive buffer layer, the outside of the described first semi-conductive buffer layer coats and is provided with integrated insulating barrier, the outside coating of described insulating barrier is provided with the second semi-conductive buffer layer, the outside screen that is provided with ground connection that coats of the described second semi-conductive buffer layer, described screen outer setting has sleeve pipe.
- 2. a kind of insulation tubular bus according to claim 1 is characterized in that: the copper pipe that described tubular conductor is hollow-core construction or the alloy aluminum pipe of hollow-core construction.
- 3. a kind of insulation tubular bus according to claim 1 is characterized in that: described sleeve pipe is heat-shrinkable T bush or is formed by the resin material cast.
- 4. a kind of insulation tubular bus according to claim 1, it is characterized in that: described insulating barrier is extruded moulding by casting by modified resin integral body.
- 5. a kind of insulation tubular bus according to claim 1, it is characterized in that: the material of the described first semi-conductive buffer layer and the second semi-conductive buffer layer is EVA, the composite polyethylene material that is added with conductive carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039944 CN203070802U (en) | 2013-01-24 | 2013-01-24 | Insulating tubular bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039944 CN203070802U (en) | 2013-01-24 | 2013-01-24 | Insulating tubular bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203070802U true CN203070802U (en) | 2013-07-17 |
Family
ID=48769566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320039944 Expired - Lifetime CN203070802U (en) | 2013-01-24 | 2013-01-24 | Insulating tubular bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203070802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666951A (en) * | 2017-03-27 | 2018-10-16 | 江苏士林电气设备有限公司 | A kind of D.C. isolation tube type bus for the urban transportation |
-
2013
- 2013-01-24 CN CN 201320039944 patent/CN203070802U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666951A (en) * | 2017-03-27 | 2018-10-16 | 江苏士林电气设备有限公司 | A kind of D.C. isolation tube type bus for the urban transportation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160928 Granted publication date: 20130717 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170328 Granted publication date: 20130717 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170330 Granted publication date: 20130717 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170930 Granted publication date: 20130717 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20171123 Granted publication date: 20130717 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20180523 Granted publication date: 20130717 |
|
| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |