CN201877177U - EPDM rubber insulating metal tube bus - Google Patents
EPDM rubber insulating metal tube bus Download PDFInfo
- Publication number
- CN201877177U CN201877177U CN2010205871966U CN201020587196U CN201877177U CN 201877177 U CN201877177 U CN 201877177U CN 2010205871966 U CN2010205871966 U CN 2010205871966U CN 201020587196 U CN201020587196 U CN 201020587196U CN 201877177 U CN201877177 U CN 201877177U
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- CN
- China
- Prior art keywords
- metal tube
- propylene diene
- ethylene propylene
- tube bus
- diene rubber
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- Expired - Lifetime
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Abstract
The utility model relates to an EPDM (ethylene-propylene diene monomer) rubber insulating metal tube bus, which comprises a metal tube bus body, an EPDM rubber shielding layer coated on the outer surface of the metal tube bus body, and an EPDM rubber insulating layer coated on the outer surface of the EPDM rubber shielding layer. Compared with the prior art, the EPDM rubber insulating metal tube bus provided by the utility model has the characteristics of high electric strength, good heat resistance, strong ageing resistance and low cost.
Description
Technical field
The utility model relates to a kind of metal tube bus, is specifically related to a kind of ethylene propylene diene rubber insulated metal pipe bus.
Background technology
The insulation mode of existing insulated metal pipe bus has five classes: a class is extrusion moulding polyvinyl chloride (PVC), and its shortcoming is that heatproof is relatively poor; The 2nd, epoxy resin or the insulation of epoxy resin impregnating varnish layer platen, its shortcoming is that the elasticity of material is limited, and easy be full of cracks in service causes insulation breakdown, and cost is also high especially, and technology is comparatively complicated; The 3rd, the polyethylene extrusion material, the polyethylene fusing point is low, and high temperature uses yielding, and the mechanical property of material and electrical property will decline to a great extent, and can only be used in the occasion of low voltage and less electric current; The 4th, wrapped teflin tape, its shortcoming is to realize continuous automatic production, wastes time and energy, the material cost height, and infiltrate impurity easily in insulation system; The 5th, silicon rubber insulation with pipe bus complex manufacturing, apparatus expensive, the silicon rubber price height that silicon rubber coats, makes product be difficult to large-scale popularization and uses.Existing insulated metal pipe bus is difficult to be used widely on the 10-35KV in distribution engineering field electric pressure.
And, existing metal tube bus is mainly following structure: tubular electric conductor adds a layer insulating and oversheath is formed, this metal tube bus has solved the shortcoming that the rectangular bus bar skin effect coefficient is big, mechanical strength is low of early stage appearance, but its electric strength, thermal endurance, ageing resistace etc. still remain to be improved.
The utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of electric strength height, good heat resistance, ageing resistance strong, and with low cost, can be widely used in the ethylene propylene diene rubber metal tube bus on the 10-35KV electric pressure in distribution engineering field.
In order to achieve the above object, the technical solution adopted in the utility model is as follows: a kind of ethylene propylene diene rubber insulated metal pipe bus, comprise the metal tube bus bulk, it is characterized in that: also comprise the ethylene propylene diene rubber screen that is coated on the metal tube bus bulk outer surface, and be coated on the ethylene propylene diene rubber insulating barrier on the ethylene propylene diene rubber screen outer surface.
Also be coated with the oversheath pipe on the outer surface of ethylene propylene diene rubber insulating barrier.
The utility model compared with prior art, special process and the technology of having utilized two layers of co-extrusion of ethylene propylene diene rubber to coat simultaneously, the serialization of pipe bus, automated production have been realized, and this technology and technology can guarantee fine fusion between the interface of internal shield and two kinds of different ethylene propylene diene rubbers of insulating barrier, closely bond between internal shield and pipe bus, interlayer does not have breath, the withstand voltage height of this kind pipe bus, electrical property excellence.And the oversheath pipe has mechanical protective effect, makes ethylene propylene diene rubber insulated tube bus have ageing-resistant, anticorrosion and damp-proof characteristics.Pipe bus of the present utility model can and occasion such as pass through and lay at built on stilts, direct-burried, especially can be widely used on the 10-35KV electric pressure in distribution engineering field.
Description of drawings
Fig. 1 is the schematic cross-section of the utility model embodiment.
Embodiment
As shown in Figure 1, a kind of ethylene propylene diene rubber insulated metal pipe bus, comprise metal tube bus bulk 1, be overlying on the ethylene propylene diene rubber screen 2 on metal tube bus bulk 1 outer surface, be coated on the ethylene propylene diene rubber insulating barrier 3 on ethylene propylene diene rubber screen 2 outer surfaces, and be coated on the oversheath pipe 4 on the outer surface of ethylene propylene diene rubber insulating barrier 3.
The ethylene propylene diene rubber that the utility model adopts has good resistance to ag(e)ing, corrosion resistance, water-fast steam, anti-overheated water-based, especially its excellent electrical insulation capability and corona resistance, make ethylene propylene diene rubber metal tube bus have superior resistance to ag(e)ing, corrosion resistance, corona resistance and electrical insulating property, the metal tube bus can be used under worse environment; Simultaneously, ethylene propylene diene rubber also has excellent elasticity, can adapt to the variation of expanding with heat and contract with cold of metal tube bus, further improves electric strength, thermal endurance and the ageing resistance of metallic bus bar, further improves the service rating of metal tube bus.
When making the metal tube bus of present embodiment, at first determine the length that the metal tube bus need shield, extrude internal shield, insulating barrier by two layers of co-extrusion mode then.The metal tube of innermost layer can be copper pipe, aluminum pipe or copper cladding aluminium pipe etc.
Special process and technology that the utility model has also utilized the two-layer co-extrusion of ethylene propylene diene rubber to coat simultaneously, the serialization of pipe bus, automated production have been realized, and this technology can guarantee well to merge between different ethylene propylene diene rubber interfaces with technology, closely bond between internal shield and pipe bus, interlayer does not have breath, thereby it is flat low that the office of managing bus is discharged water, withstand voltage height, the electrical property excellence has the stronger market competitiveness.
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carry out in the utility model scheme scope and replacing all should be included in the protection range of the present utility model.
Claims (2)
1. ethylene propylene diene rubber insulated metal pipe bus, comprise metal tube bus bulk (1), it is characterized in that: also comprise the ethylene propylene diene rubber screen (2) that is coated on metal tube bus bulk (1) outer surface, and be coated on the ethylene propylene diene rubber insulating barrier (3) on ethylene propylene diene rubber screen (2) outer surface.
2. a kind of ethylene propylene diene rubber insulated metal pipe bus as claimed in claim 1 is characterized in that: also be coated with oversheath pipe (4) on the outer surface of ethylene propylene diene rubber insulating barrier (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205871966U CN201877177U (en) | 2010-10-29 | 2010-10-29 | EPDM rubber insulating metal tube bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205871966U CN201877177U (en) | 2010-10-29 | 2010-10-29 | EPDM rubber insulating metal tube bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877177U true CN201877177U (en) | 2011-06-22 |
Family
ID=44165090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205871966U Expired - Lifetime CN201877177U (en) | 2010-10-29 | 2010-10-29 | EPDM rubber insulating metal tube bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496423A (en) * | 2011-11-29 | 2012-06-13 | 安庆市三阳塑胶材料有限公司 | Production method of polymer composite power bus bar or bus tube |
-
2010
- 2010-10-29 CN CN2010205871966U patent/CN201877177U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496423A (en) * | 2011-11-29 | 2012-06-13 | 安庆市三阳塑胶材料有限公司 | Production method of polymer composite power bus bar or bus tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518118 Huicheng Science and Technology Industrial Plant, East of Lanjing Road and South of Jinxiu Road, Pingshan New District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Huicheng Information Technology Co., Ltd. Address before: 518118 Huicheng Science and Technology Industrial Factory, East of Lanjing Road and South of Jinxiu Road, Longgang District, Shenzhen City, Guangdong Province Patentee before: Huicheng Electric Co., Ltd., Shenzhen City |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |