CN213025474U - 20kV anti-compression anti-interference waterproof cable with large fault current protection - Google Patents
20kV anti-compression anti-interference waterproof cable with large fault current protection Download PDFInfo
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- CN213025474U CN213025474U CN202022187789.XU CN202022187789U CN213025474U CN 213025474 U CN213025474 U CN 213025474U CN 202022187789 U CN202022187789 U CN 202022187789U CN 213025474 U CN213025474 U CN 213025474U
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- compression
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- cable
- shielding layer
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- 238000007906 compression Methods 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 26
- 239000010949 copper Substances 0.000 claims abstract description 26
- 230000006835 compression Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000002500 effect on skin Effects 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of cables, especially, relate to a 20kV resistance to compression anti-interference waterproof cable of big fault current protection, include: many conductors, every conductor is crowded package insulating layer outward in proper order outward, the inflation layer, the copper strips shielding layer, outside the cladding in proper order behind many conductors stranding has around the covering, the inner liner, the steel wire armor, the oversheath, the steel wire armor is provided with a plurality of steel wires of evenly arranging, the steel wire armor still has a plurality of copper wires of evenly arranging along self circumferencial direction, every copper wire all is spaced apart with the steel wire, the copper wire is connected with the copper strips shielding layer, the utility model discloses well copper strips shielding layer, first even magnetic field makes the cable possess the interference killing feature, second as the transmission of undertaking fault current, when cable run breaks down, utilizes skin effect principle to let fault current flow through the copper strips shielding layer to the electric current that slows down in the conductor rises, thereby avoids causing the heat damage to the cable material.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a 20kV resistance to compression anti-interference waterproof cable of big fault current protection.
Background
As is well known, cables are used in various industries, such as power systems: the electric wire and cable products adopted by the electric power system mainly comprise an overhead bare wire, a bus bar (bus), an electric power cable (plastic cable, oilpaper cable (basically replaced by the plastic electric power cable), a rubber sleeve cable, an overhead insulated cable), a branch cable (replacing part of the bus), an electromagnetic wire, an electric equipment wire and cable for electric power equipment and the like; information transmission: the electric wire and cable used for the information transmission system mainly comprises a local telephone cable, a television cable, an electronic cable, a radio frequency cable, an optical fiber cable, a data cable, an electromagnetic wire, an electric power communication or other composite cables and the like; an instrument system: almost all other products except the overhead bare wire are applied to the part, but the part mainly comprises a power cable, an electromagnetic wire, a data cable, an instrument cable and the like.
Most of cables in the current market do not have the capacity of coping with fault current, and when the fault current is generated, the cable material is easily damaged due to the increase of instantaneous current. Meanwhile, when the cable material is applied to occasions requiring shielding, the shielding effect is poor.
In view of the above problems, the designer actively makes research and innovation based on the practical experience and professional knowledge that the engineering of such products is applied for many years, so as to create a 20kV compression-resistant anti-interference waterproof cable with large fault current protection, and make the cable more practical.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the 20kV compression-resistant anti-interference waterproof cable with large fault current protection is provided, so that the problems in the background art are solved.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a20 kV compression-resistant anti-interference waterproof cable with large fault current protection comprises: many conductors, every the conductor is crowded package insulating layer, inflation layer, copper strips shielding layer outward in proper order, many the conductor stranding back outwards in proper order the cladding have around covering, inner liner, steel wire armor, oversheath, the steel wire armor is provided with a plurality of steel wires of evenly arranging, the steel wire armor still evenly arranges many copper wires along self circumferencial direction, every the copper wire all with the steel wire is spaced apart, the copper wire with the copper strips shielding layer is connected.
Further, a semi-conductive inner shielding layer is arranged between the conductor and the insulating layer.
Further, a semi-conductive outer shielding layer is arranged between the insulating layer and the expansion layer.
Furthermore, a net-shaped filler layer is arranged in a gap between the copper strip shielding layer and the wrapping layer.
Furthermore, the material of the reticular filler layer is a PP material with a non-hygroscopic reticular structure.
Furthermore, the copper wire and the steel wire are not connected and the interval is less than or equal to 4 mm.
Further, the conductor is composed of a plurality of round copper conductors that are pressed together.
Further, the number of conductors in each cable is 3.
Furthermore, the thickness of the inner shielding layer and the thickness of the outer shielding layer are set to be 0.8-1.2 mm.
Furthermore, the thickness of the inner liner in a squeezing mode is set to be 2-4 mm, and the inner liner is made of waterproof polyethylene materials.
The utility model has the advantages that:
1. because the cable has insulation thermal expansion in the use process, the utility model balances the heated volume expansion of the cable insulation layer by wrapping the expansion layer, thereby ensuring the integrity of the cable structure;
2. the utility model discloses in through setting up the copper strips shielding layer, firstly even magnetic field makes the cable possess the interference killing feature, secondly as the transmission of undertaking fault current, when cable run breaks down, utilizes skin effect principle to let fault current flow through the copper strips shielding layer to the electric current that slows down in the conductor rises, thereby avoids causing the heat damage to the cable material.
3. The inner liner is arranged in the utility model, the inner liner is preferably made of waterproof polyethylene material, so that the compression resistance and the waterproof performance of the cable are improved;
4. the utility model discloses in still through setting up the steel wire armor and arranging many copper wires in the steel wire armor, the copper wire combines together with the copper strips shielding layer of inlayer, has increased fault current transmission cross section, has reduced the cable because of the heat damage to the cable insulation that the increase of electric current in the twinkling of an eye caused.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is the embodiment of the utility model provides an in 20kV resistance to compression anti-interference waterproof cable's of big fault current protection section structure sketch map.
Reference numerals: conductor 1, semiconduction internal shield layer 2, insulating layer 3, semiconduction external shield layer 4, inflation layer 5, copper strips shielding layer 6, netted filler layer 7, around covering 8, inner liner 9, steel wire armor 10, copper wire 11, oversheath 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The 20kV anti-compression anti-interference waterproof cable protected by large fault current as shown in fig. 1 comprises: many conductors 1, every conductor 1 is crowded package insulating layer 3 outward in proper order, inflation layer 5, copper strips shielding layer 6, the cladding has around covering 8 outward in proper order after 1 stranding of many conductors, inner liner 9, steel wire armor 10, oversheath 12, steel wire armor 10 is provided with a plurality of steel wires of evenly arranging, steel wire armor 10 is still along the even many copper wires 11 of having arranged of self circumferencial direction, every copper wire 11 all is spaced apart with the steel wire, copper wire 11 is connected with copper strips shielding layer 6.
A semiconducting inner shield layer 2 is provided between the conductor 1 and the insulating layer 3 for the purpose of uniform electric field.
For better uniformity of the electric field, a semiconducting outer shield layer 4 is provided between the insulating layer 3 and the expansion layer 5.
In order to ensure the roundness of the cable, a reticular filler layer 7 is arranged in the gap between the copper strip shielding layer 6 and the wrapping layer 8.
Preferably, the material of the mesh-shaped filler layer 7 is a PP material with a non-hygroscopic mesh structure, and the PP material has good heat dissipation performance, so that the roundness of the cable is ensured, and the problem that the cable is not easy to dissipate heat is also avoided.
In order to prevent the steel wire from interfering the copper wire 11 during fault current transmission, the copper wire 11 and the steel wire are not connected, the interval is less than or equal to 4mm, the interval is less than 4mm, and the structural stability is also ensured.
As a preference for the above embodiment, the conductor 1 consists of a plurality of round copper conductors pressed together, preferably 48 with a cross-sectional area of 2.65mm2The copper conductor of (2) has a diameter of 18.8mm and a cross section of 250mm2。
As a preference of the above embodiment, the number of conductors 1 in each cable is 3.
In order to guarantee that the cable can even electric field, also reduce the thickness behind the crowded package shaping of cable simultaneously, the crowded package thickness of internal shield layer 2 and external shield layer 2 all sets up to between 0.8 ~ 1.2 mm.
In order to improve the compression resistance and the waterproof effect of the cable, the thickness of the inner liner 9 is set to be 2-4 mm, and the inner liner 9 is made of waterproof polyethylene material.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a big 20kV resistance to compression anti-interference waterproof cable of fault current protection which characterized in that includes: many conductors (1), every conductor (1) is crowded package insulating layer (3), inflation layer (5), copper strips shielding layer (6) outward in proper order, many the cladding has around covering (8), inner liner (9), steel wire armor (10), oversheath (12) outward in proper order after conductor (1) stranding, steel wire armor (10) is provided with a plurality of steel wires of evenly arranging, many copper wires (11) of evenly arranging are still followed self circumferencial direction in steel wire armor (10), every copper wire (11) all with the steel wire is spaced apart, copper wire (11) with copper strips shielding layer (6) are connected.
2. The large-fault-current-protection 20kV compression-resistant anti-interference waterproof cable according to claim 1, wherein a semi-conductive inner shielding layer (2) is arranged between the conductor (1) and the insulating layer (3).
3. The large-fault-current-protected 20kV compression-resistant anti-interference waterproof cable according to claim 2, wherein a semi-conductive outer shielding layer (4) is arranged between the insulating layer (3) and the expansion layer (5).
4. The large-fault-current-protection 20kV compression-resistant anti-interference waterproof cable as claimed in claim 1, wherein a gap between the copper tape shielding layer (6) and the wrapping layer (8) is provided with a mesh-shaped filler layer (7).
5. The large-fault-current-protection 20kV compression-resistant anti-interference waterproof cable as claimed in claim 4, wherein the material of the mesh filler layer (7) is a non-hygroscopic PP material with a mesh structure.
6. The large-fault-current-protection 20kV compression-resistant anti-interference waterproof cable as claimed in claim 1, wherein the copper wire (11) and the steel wire are not connected and are spaced by 4mm or less.
7. A large fault current protected 20kV compression-resistant anti-interference waterproof cable according to claim 1, characterized in that the conductor (1) is composed of a plurality of circular copper conductors pressed together.
8. A large fault current protected 20kV compression resistant anti-interference waterproof cable according to claim 1, wherein the number of the conductors (1) in each cable is 3.
9. The large-fault-current-protection 20kV compression-resistant anti-interference waterproof cable as claimed in claim 3, wherein the extrusion thickness of the inner shielding layer (2) and the extrusion thickness of the outer shielding layer (4) are set to be 0.8-1.2 mm.
10. The 20kV compression-resistant anti-interference waterproof cable with large fault current protection as claimed in claim 1, wherein the extrusion thickness of the inner liner (9) is set to be 2-4 mm, and the inner liner (9) is made of waterproof polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022187789.XU CN213025474U (en) | 2020-09-29 | 2020-09-29 | 20kV anti-compression anti-interference waterproof cable with large fault current protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022187789.XU CN213025474U (en) | 2020-09-29 | 2020-09-29 | 20kV anti-compression anti-interference waterproof cable with large fault current protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213025474U true CN213025474U (en) | 2021-04-20 |
Family
ID=75479860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022187789.XU Active CN213025474U (en) | 2020-09-29 | 2020-09-29 | 20kV anti-compression anti-interference waterproof cable with large fault current protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213025474U (en) |
-
2020
- 2020-09-29 CN CN202022187789.XU patent/CN213025474U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214200 No.101 hengtongdao, Xinjie street, Yixing City, Wuxi City, Jiangsu Province Patentee after: Yusheng Electric Co.,Ltd. Address before: 214200 No.101 hengtongdao, Xinjie street, Yixing City, Wuxi City, Jiangsu Province Patentee before: Wuxi Yusheng Cable Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 9 Yuanjiang Road, Lusigang Economic Development Zone, Qidong City, Nantong City, Jiangsu Province, 214200 Patentee after: Yusheng Electric Co.,Ltd. Country or region after: China Address before: 214200 No.101 hengtongdao, Xinjie street, Yixing City, Wuxi City, Jiangsu Province Patentee before: Yusheng Electric Co.,Ltd. Country or region before: China |