CN104464917A - Shielding dual-purpose variable-frequency cable - Google Patents
Shielding dual-purpose variable-frequency cable Download PDFInfo
- Publication number
- CN104464917A CN104464917A CN201410695056.3A CN201410695056A CN104464917A CN 104464917 A CN104464917 A CN 104464917A CN 201410695056 A CN201410695056 A CN 201410695056A CN 104464917 A CN104464917 A CN 104464917A
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- CN
- China
- Prior art keywords
- cable
- shielding
- layer
- conductor
- dielectric
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000009422 external insulation Methods 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The invention discloses a shielding dual-purpose variable-frequency cable. The shielding dual-purpose variable-frequency cable comprises a conductor located in the center of the cable, a low-dielectric-loss inner insulating layer and a low-dielectric-loss outer insulating layer are arranged outside the conductor in sequence in an extruding mode, and a first belt and a woven layer are wound between the low-dielectric-loss inner insulating layer and the low-dielectric-loss outer insulating layer in a wrapping mode; a metal shielding layer is woven outside the low-dielectric-loss outer insulating layer; a second belt is wound outside the metal shielding layer, and an outer sheath is arranged on the outermost layer of the cable in an extruding mode. The shielding dual-purpose variable-frequency cable adopts a novel structure, reduces the weight, the outer diameter and use of raw materials, and does not change the use characteristics. The overall softness of the cable is better than that of a non-woven cable, the cross section of the cable is the same as the cross section of the conductor, and the shielding layer has a shielding function and can serve as a power cable core.
Description
Technical field
The present invention relates to and join field of cable technology, particularly relate to a kind of shielding dual-purpose type frequency-changing cable.
Background technology
The shielding of frequency-changing cable mostly is wire sheathing, this layer of wire sheathing effect Main Function is: 1, shield: shielding mainly prevents external electromagnetic interference from having an impact to the current delivery of cable own, or the electromagnetism produced in conductor propagation current course is to externalities; 2, do earthy: the screen of cable is that metal level wraps in outside insulation, if insulation breakdown cause electric leakage, metal screen layer can effectively make leakage current shield access underground.
Prior art Problems existing and shortcoming: when cable conductor be two cores and above time, the external diameter of cable is larger than not having the outside diameter of cable of screen, and Heavy Weight, is not suitable for manually laying.Screen can only as shielding and ground connection, and the utilance of screen is low.
Summary of the invention
The present invention, in order to solve the problem of prior art, provides a kind of shielding dual-purpose type frequency-changing cable being applied to volume occasion that is little, lightweight, that need shielding and using.
One shielding dual-purpose type frequency-changing cable of the present invention, comprise the conductor being positioned at cable center, conductor extrudes the inside and outside insulating barrier of low dielectric loss outward successively, wrapped first band and proof copper-wire braided layer between the inside and outside insulating barrier of low dielectric loss; Shielding layer of copper wires is woven outward again at low dielectric loss external insulation layer; Again at outer wrapped second band again of shielding layer of copper wires, outside cable outermost layer, extrude oversheath.
Further improvement, described metal screen layer is shielding layer of copper wires.
Further improvement, described conductor is identical with the cross section of metal screen layer.
Compared with prior art, beneficial effect of the present invention is: adopt new structure to reduce cable weight, decrease external diameter, decrease raw-material use, do not change the operating characteristic of cable simultaneously.The overall flexibility of cable will be got well compared with non-woven, and its cross section is identical with conductors cross.Its effect has two aspects: one, because the first screen is that metal copper wire is made, therefore, can play the effect of shielding to conductor, and does not need to increase extra screen, saves material; This screen cross section is identical with conductor on the other hand, can use as power wire core, and what combine side by side compares with cross section two heart yearn, has the advantage that external diameter is little; Structure of the present invention does not need to use packing material compared with original two cored structures in addition, and phase weight is lighter.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
One shielding dual-purpose type frequency-changing cable as shown in Figure 1, comprise the conductor 1 being positioned at cable center, conductor 1 is outer extrudes the inside and outside insulating barrier 2,5 of low dielectric loss successively, wrapped first band 3 and braiding braid 4 between the inside and outside insulating barrier of low dielectric loss 2,5; Again at the outer braided metal screen 6 of low dielectric loss external insulation layer 5; Again at outer wrapped second band 7 again of metal screen layer 6, outside cable outermost layer, extrude oversheath 8.
Embody rule approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (3)
1. a shielding dual-purpose type frequency-changing cable, it is characterized in that: comprise the conductor (1) being positioned at cable center, conductor (1) extrudes the inside and outside insulating barrier of low dielectric loss (2,5) outward successively, wrapped first band (3) and braiding braid (4) between the inside and outside insulating barrier of low dielectric loss (2,5); Again the outer braided metal screen (6) of low dielectric loss external insulation layer (5); Again metal screen layer (6) wrapped second band (7) more outward, outside cable outermost layer, extrude oversheath (8).
2. according to the shielding dual-purpose type frequency-changing cable described in claim 1, it is characterized in that: described metal screen layer (6) is shielding layer of copper wires.
3. according to the shielding dual-purpose type frequency-changing cable described in claim 1, it is characterized in that: described conductor (1) is identical with the cross section of metal screen layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695056.3A CN104464917A (en) | 2014-11-27 | 2014-11-27 | Shielding dual-purpose variable-frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695056.3A CN104464917A (en) | 2014-11-27 | 2014-11-27 | Shielding dual-purpose variable-frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104464917A true CN104464917A (en) | 2015-03-25 |
Family
ID=52910842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410695056.3A Pending CN104464917A (en) | 2014-11-27 | 2014-11-27 | Shielding dual-purpose variable-frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104464917A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011082000A1 (en) * | 2011-09-01 | 2013-03-07 | Schott Ag | Power transmission cable useful e.g. for transmission of electrical voltage, preferably high-voltage, comprises an electrical conductor and an insulation comprising a glass layer made of a wound glass film |
| CN103065713A (en) * | 2013-01-05 | 2013-04-24 | 辽宁金环电缆有限公司 | High-strength full-shield anti-pulse superhigh frequency cable for nuclear power |
| CN104112536A (en) * | 2013-04-18 | 2014-10-22 | 张凌 | 220KV extra high voltage power transmission cable |
| CN204315260U (en) * | 2014-11-27 | 2015-05-06 | 江苏中煤电缆有限公司 | A kind of shielding dual-purpose type frequency-changing cable |
-
2014
- 2014-11-27 CN CN201410695056.3A patent/CN104464917A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011082000A1 (en) * | 2011-09-01 | 2013-03-07 | Schott Ag | Power transmission cable useful e.g. for transmission of electrical voltage, preferably high-voltage, comprises an electrical conductor and an insulation comprising a glass layer made of a wound glass film |
| CN103065713A (en) * | 2013-01-05 | 2013-04-24 | 辽宁金环电缆有限公司 | High-strength full-shield anti-pulse superhigh frequency cable for nuclear power |
| CN104112536A (en) * | 2013-04-18 | 2014-10-22 | 张凌 | 220KV extra high voltage power transmission cable |
| CN204315260U (en) * | 2014-11-27 | 2015-05-06 | 江苏中煤电缆有限公司 | A kind of shielding dual-purpose type frequency-changing cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |