CN203351272U - A low-smoke halogen-free ethylene propylene rubber insulating inner-steel-tape-armored variable-frequency power cable - Google Patents
A low-smoke halogen-free ethylene propylene rubber insulating inner-steel-tape-armored variable-frequency power cable Download PDFInfo
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- CN203351272U CN203351272U CN 201320356333 CN201320356333U CN203351272U CN 203351272 U CN203351272 U CN 203351272U CN 201320356333 CN201320356333 CN 201320356333 CN 201320356333 U CN201320356333 U CN 201320356333U CN 203351272 U CN203351272 U CN 203351272U
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- propylene rubber
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Abstract
The utility model discloses a low-smoke halogen-free ethylene propylene rubber insulating inner-steel-tape-armored variable-frequency power cable comprising main conductors and neutral conductors. The surfaces of the three main conductors and the surfaces of the neutral conductors are successively wrapped in ethylene propylene rubber insulating layers and metallic shielding layers. Three neutral conductors are arranged centrally symmetrically and are wrapped in a wrapping tape layer to form a wire core. The center of the wire core and the center of two main conductors are arranged centrally symmetrically. The wire cores are placed between the two main conductors and between the main conductors and the wire cores. The main conductors and the neutral conductors are twisted in a compound manner to form a cable core. The outer side of the cable core is successively wrapped in a cabling wrapping tape, an inner sheath, a copper wire shielding layer, a copper tape shielding layer, an isolating sleeve, a steel tape armoring layer, and a polyolefin outer sheath. The low-smoke halogen-free ethylene propylene rubber insulating inner-steel-tape-armored variable-frequency power cable has characteristics of simple structure, stable and reliable operation, a high safety factor, and prevention of breakdown.
Description
Technical field
The utility model relates to the frequency-conversion power cable technical field, relates in particular to steel-tape armouring frequency-conversion power cable in the low smoke and zero halogen ethylene-propylene rubber insulated.
Background technology
At present, more and more extensive to the application of frequency control motor both at home and abroad, annual growth slightly surpasses tens percent, and variable-frequency motor has that equipment investment is few, simple in structure, volume is little, the characteristic of low cost of manufacture, wide, the permanent power of speed adjustable range, permanent rotating speed, easy to use, capacity is large.Frequency control motor is also very high to the requirement of cable, and cable is longer, and amplitude is higher, if the coefficient of safety of cable is not high, may be breakdown, and there is potential safety hazard.
The utility model content
The utility model purpose is exactly in order to make up the defect of prior art, and steel-tape armouring frequency-conversion power cable in a kind of low smoke and zero halogen ethylene-propylene rubber insulated is provided.
The utility model is achieved through the following technical solutions:
Steel-tape armouring frequency-conversion power cable in a kind of low smoke and zero halogen ethylene-propylene rubber insulated, include leading body and neutral conductor, three leading bodies and the neutral conductor outside are surrounded by respectively to ethylene-propylene rubber insulated layer and metal screen layer successively, three neutral conductors are centrosymmetric and place and form core by being surrounded by belting layer, by the placement that is centrosymmetric of the center of the center of a core and two leading bodies, be placed with respectively core between two leading bodies and between leading body and core, adopt the mode bundle of compound bundle strand to be twisted into cable core leading body and core, the described cable core outside is coated with the stranding band successively, inner sheath, shielding layer of copper wires, the copper strip shielding layer, separation sleeve, steel-tape armouring layer and polyolefin oversheath.
Described leading body and neutral conductor are oxygen-free copper bar.
The utility model has the advantages that: the utility model is centrosymmetric three neutral conductors to place and form core by being surrounded by belting layer, by the placement that is centrosymmetric of the center of the center of a core and two leading bodies, be placed with respectively core between two leading bodies and between leading body and core, simple in structure, working stability is reliable, coefficient of safety is high, can be not breakdown.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, steel-tape armouring frequency-conversion power cable in a kind of low smoke and zero halogen ethylene-propylene rubber insulated, include leading body 1 and neutral conductor 2, three leading bodies 1 and neutral conductor 2 outsides are surrounded by respectively to ethylene-propylene rubber insulated layer 3 and metal screen layer 4 successively, three neutral conductors 2 are centrosymmetric and place and form core by being surrounded by belting layer 5, by the placement that is centrosymmetric of the center of the center of a core and two leading bodies 1, be placed with respectively core between two leading bodies 1 and between leading body 1 and core, adopt the mode bundle of compound bundle strand to be twisted into cable core leading body 1 and core, the described cable core outside is coated with stranding band 6 successively, inner sheath 7, shielding layer of copper wires 8, copper strip shielding layer 9, separation sleeve 10, steel-tape armouring layer 11 and polyolefin oversheath 12.
Described leading body 1 and neutral conductor 2 are oxygen-free copper bar.
Claims (2)
1. steel-tape armouring frequency-conversion power cable in a low smoke and zero halogen ethylene-propylene rubber insulated, it is characterized in that: include leading body and neutral conductor, three leading bodies and the neutral conductor outside are surrounded by respectively to ethylene-propylene rubber insulated layer and metal screen layer successively, three neutral conductors are centrosymmetric and place and form core by being surrounded by belting layer, by the placement that is centrosymmetric of the center of the center of a core and two leading bodies, be placed with respectively core between two leading bodies and between leading body and core, adopt the mode bundle of compound bundle strand to be twisted into cable core leading body and core, the described cable core outside is coated with the stranding band successively, inner sheath, shielding layer of copper wires, the copper strip shielding layer, separation sleeve, steel-tape armouring layer and polyolefin oversheath.
2. steel-tape armouring frequency-conversion power cable in low smoke and zero halogen ethylene-propylene rubber insulated according to claim 1, it is characterized in that: described leading body and neutral conductor are oxygen-free copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320356333 CN203351272U (en) | 2013-06-20 | 2013-06-20 | A low-smoke halogen-free ethylene propylene rubber insulating inner-steel-tape-armored variable-frequency power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320356333 CN203351272U (en) | 2013-06-20 | 2013-06-20 | A low-smoke halogen-free ethylene propylene rubber insulating inner-steel-tape-armored variable-frequency power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203351272U true CN203351272U (en) | 2013-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320356333 Expired - Fee Related CN203351272U (en) | 2013-06-20 | 2013-06-20 | A low-smoke halogen-free ethylene propylene rubber insulating inner-steel-tape-armored variable-frequency power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203351272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078123A (en) * | 2014-06-10 | 2014-10-01 | 辽宁宝林集团大连金州电缆有限公司 | Environment-friendly double-shielded low-voltage fire-resistant compound insulating high-flame-retardant flexible cable |
-
2013
- 2013-06-20 CN CN 201320356333 patent/CN203351272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078123A (en) * | 2014-06-10 | 2014-10-01 | 辽宁宝林集团大连金州电缆有限公司 | Environment-friendly double-shielded low-voltage fire-resistant compound insulating high-flame-retardant flexible cable |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20170620 |