CN113611448B - Low-temperature-resistant and corrosion-resistant cable - Google Patents
Low-temperature-resistant and corrosion-resistant cable Download PDFInfo
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- CN113611448B CN113611448B CN202110827815.7A CN202110827815A CN113611448B CN 113611448 B CN113611448 B CN 113611448B CN 202110827815 A CN202110827815 A CN 202110827815A CN 113611448 B CN113611448 B CN 113611448B
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- cable
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- waterproof layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
Abstract
A low-temperature-resistant and corrosion-resistant cable is used for solving the technical problem that the existing cable is poor in comprehensive performance. The cable comprises a plurality of wire cores, a supporting tube for protecting the plurality of wire cores, and a low temperature resistant layer, an anti-corrosion layer, a first waterproof layer and a second waterproof layer which are sequentially arranged along the outer wall of the supporting tube outwards, wherein a limiting mechanism for fixing the plurality of wire cores and comprising a plurality of limiting assemblies is arranged in a cavity of the supporting tube, one wire core is fixed in each limiting assembly, a plurality of supporting plates are arranged in the circumferential direction of one limiting assembly, other limiting assemblies are respectively and uniformly arranged between the supporting plates and are elastically connected onto the limiting assemblies fixed with the supporting plates through elastic pieces, glass fiber cotton is filled between the limiting mechanism and the supporting tube, the wire cores are thoroughly separated, and the displacement distance is small under the action of external force so as to prevent signal interference, so that the comprehensive performance of the cable is good; the invention is mainly used in the field of communication cables.
Description
Technical Field
The invention relates to the field of communication cables, in particular to a low-temperature-resistant and corrosion-resistant cable.
Background
Electrical wires and cables are collectively referred to as cables, which are wire products used to transmit electrical or magnetic energy, information, and effect electromagnetic energy conversion. The inside metal sinle silk that can set up of cable also can set up many sinle silks, then sets up compound cladding layer in the outside of sinle silk and make the cable have low temperature resistant, characteristics such as corrosion-resistant.
The cable of the present multi-thread core, at the inside supporter that sets up of cable with the sinle silk separately each other in order to prevent the signal interference between the sinle silk, but when the cable received the effect of external physical power, thereby the compound coating layer of cable can be by extrusion deformation and lead to the position change of the inside sinle silk of cable, though there is the effect of supporter to make sinle silk can not direct contact each other, but when external physical power is great, the cable warp and seriously will lead to the sinle silk to shift seriously, thereby the distance that will lead to two sinle silks under this kind of circumstances is too near to lead to signal mutual interference.
In the long-term use process of the cable, the composite coating layer coated outside the cable core is aged, and the composite coating layer of the multi-wire-core cable only comprises a corrosion-resistant layer and a low-temperature-resistant layer, and the corrosion-resistant layer and the low-temperature-resistant layer can quickly lose effects, so that the service life of the cable is shortened, namely the comprehensive performance of the cable is poor.
Disclosure of Invention
The invention aims to provide a low-temperature-resistant and corrosion-resistant cable aiming at the defects of the prior art, and aims to solve the technical problem that the existing cable is poor in comprehensive performance.
In order to realize the purpose, the invention adopts the following technical scheme:
the utility model provides a low temperature resistant corrosion resistant cable, includes many sinle silks, is used for protecting many the stay tube of sinle silks and along the stay tube outer wall is low temperature resistant layer, corrosion resistant layer, first waterproof layer and the second waterproof layer that sets gradually from inside to outside, set up in the cavity of stay tube and be used for fixing many the stop gear of sinle silks, stop gear includes a plurality of spacing subassemblies, and is a plurality of spacing subassembly one-to-one cladding is many on the sinle silks, one of them spacing subassembly distributes the center of stay tube, the fixed a plurality of backup pads of all with the stay tube inner wall butt of circumference interval of this spacing subassembly, arbitrary adjacent two the backup pad with enclose between the stay tube and close and form a accommodation space, other a plurality of spacing subassembly one-to-one is located in the accommodation space, and other a plurality of these spacing subassemblies are fixed respectively through an elastic component and are located one at stay tube center department on the spacing subassembly, the accommodation space intussuseption is filled with glass fiber cotton.
Further, spacing subassembly includes the mounting and along locating in the spacing subassembly the outer wall of sinle silk is from inside to outside the first glass fiber layer, haydite sand enhancement layer and the second glass fiber layer that set gradually, the mounting is the tubular structure, the second glass fiber layer is fixed on the inner wall of mounting, first glass fiber layer cladding is in on the outer wall of sinle silk.
Furthermore, the mounting includes the inner tube, the cover is established outer tube outside the inner tube and is connected the inner tube with a plurality of connecting pieces between the outer tube, it is a plurality of the connecting piece will the inner tube with the outer tube is cut apart into a plurality of cavitys, all is equipped with absorbent paper in a plurality of these cavitys, the second glass fiber layer is fixed on the inner wall of inner tube.
Further, be provided with the butt plate in the backup pad, this butt plate with stay tube inner wall butt, butt plate integrated into one piece is in the backup pad, the butt plate is the arc to make the butt plate laminating is in on the inner wall of stay tube.
Further, the first waterproof layer is of a hollow layer structure, the first waterproof layer is made of polytetrafluoroethylene, and water-absorbing polymer particles are distributed in the first waterproof layer.
Further, the second waterproof layer is a waterproof coating layer with a lotus leaf effect, and the second waterproof layer contains a component of polyvinylpyrrolidone.
Furthermore, the supporting tube, the supporting plate and the fixing piece are all made of silicon rubber.
Furthermore, the connecting piece is made of mica tape.
Furthermore, a cable heat-insulating sleeve is fixedly sleeved on the outer side of the second waterproof layer, the cable heat-insulating sleeve comprises an insulating layer, a heat-insulating layer and a protective layer which are sequentially arranged, and the insulating layer is coated on the outer side of the second waterproof layer.
Further, the cable insulation support pipe is provided with the subassembly of cramping outward, the subassembly of cramping includes the area and the retaining member of cramping of elasticity material, the both ends in the area of cramping all set up the installation department of taking the mounting hole, the area of cramping is around establishing the outside of inoxidizing coating, the retaining member passes two the mounting hole is so that the area of cramping tightly cramps cable insulation support pipe.
The invention has the beneficial effects that:
according to the invention, the limiting mechanism for fixing the plurality of wire cores is arranged in the supporting tube for protecting the wire cores, the position of the limiting mechanism is basically kept unchanged when the cable is not acted by external force due to the fact that the limiting mechanism and the supporting tube are filled with glass fiber cotton, the limiting mechanism comprises a plurality of limiting assemblies, each limiting assembly fixes one wire core, so that the plurality of wire cores are separated from each other, the plurality of limiting assemblies are elastically connected by the elastic piece, namely the movable range of the limiting assemblies is limited, when the cable is acted by external force, the distance between any two limiting assemblies is restricted due to the limitation of the elastic piece when the limiting assemblies are subjected to position compensation, namely the distance between any two limiting assemblies is not too close, so that signal interference cannot occur between the plurality of wire cores arranged in the plurality of limiting assemblies to ensure the normal work of the cable.
And set gradually low temperature resistant layer, corrosion-resistant layer and multilayer waterproof layer by inside to outside along the stay tube outer wall on the cable for the cable possesses low temperature resistant and corrosion resistance's effect, sets up in the multilayer waterproof layer in the corrosion-resistant layer outside can avoid moisture to enter into the cable simultaneously, can not lead to the fact the corruption to corrosion-resistant layer self and make corrosion-resistant layer exert effect better, has comprehensively improved the corrosion resistance of cable, thereby wholly improves the comprehensive properties of cable.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
description of reference numerals: 1. supporting a pipe; 1-1, a support plate; 1-2 parts of glass fiber cotton; 1-3, absorbent paper; 2. a low temperature resistant layer; 3. a corrosion-resistant layer; 4. a first waterproof layer; 4-1, water-absorbing polymer particles; 5. a second waterproof layer; 6. a cable insulation sleeve; 6-1, an insulating layer; 6-2, a heat-insulating layer; 6-3, a protective layer; 7. a tightening assembly; 7-1, tightening the belt; 7-2, a locking piece; 10. a limiting component; 10-1, an elastic member; 11-1, connecting pieces; 11. an inner tube; 12. an outer tube; 13. a first fiberglass layer; 14. a ceramsite sand enhancement layer; 15. a second fiberglass layer; 100. and a wire core.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings 1-3 and the embodiments.
As shown in fig. 1-3, a low temperature resistant and corrosion resistant cable includes a plurality of cable cores 100, a support tube 1 for protecting the plurality of cable cores 100, and a low temperature resistant layer 2, a corrosion resistant layer 3, a first waterproof layer 4 and a second waterproof layer 5 sequentially disposed from inside to outside along an outer wall of the support tube 1, a limiting mechanism for fixing the plurality of cable cores 100 is disposed in a cavity of the support tube 1, the limiting mechanism abuts against the support tube 1, glass fiber cotton 1-2 is filled between the limiting mechanism and the support tube 1 to ensure that the positions of the plurality of cable cores 100 are kept unchanged without physical external force, the limiting mechanism includes a plurality of limiting assemblies 10, one of the limiting assemblies 10 is disposed in the center of the support tube 1, a plurality of support plates 1-1 are circumferentially fixed at intervals on the limiting assemblies 10, an accommodation space is disposed between each adjacent two support plates 1-1 and an inner wall of the support tube 1, one limiting assembly 10 is disposed in each accommodation space, and the limiting assembly 10 is elastically connected to the limiting assembly 10 located in the center of the support tube 1 through one elastic member 10-1.
According to the low-temperature-resistant and corrosion-resistant cable, the low-temperature-resistant layer 2 is arranged to enable the cable to have the low-temperature-resistant characteristic, meanwhile, the corrosion-resistant layer 3 is arranged to enable the cable to have the corrosion-resistant characteristic, the first waterproof layer 4 and the second waterproof layer 5 are further arranged to enable the corrosion-resistant layer 3 of the cable to be free from corrosion so as to improve the corrosion resistance of the cable, and the plurality of cable cores 100 can be limited through the limiting mechanism, particularly when the cable is extruded in the using process of the cable, the plurality of cable cores 100 are completely separated through the supporting plate 1-1, two adjacent limiting assemblies 10 used for fixing the cable cores 100 cannot be contacted with each other, and the limiting assemblies 10 separated by the supporting plate 1-1 cannot be adhered with each other, so that the problem that the two adjacent limiting assemblies 10 are adhered with each other due to softening caused by the local temperature rise of the limiting assemblies 10 is avoided, further the problem that the two cable cores 100 respectively arranged in the two limiting assemblies 10 are directly contacted with each other is avoided, and finally, the short circuit of the cable is solved, and the service life of the cable is effectively prolonged; and because the limiting component 10 is elastically fixed by the elastic part 10-1, the position variation range of the limiting component 10 can meet the position compensation when the cable is extruded, and simultaneously can ensure that the distance between the two wire cores 100 is not too close to reduce the signal interference degree between the wire cores 100, thereby integrally improving the comprehensive performance of the cable.
The glass fiber has the characteristics of good insulation property, good corrosion resistance and high mechanical strength, and the arrangement of the first glass fiber layer 13 and the second glass fiber layer 15 can ensure that the wire core 100 has good insulation property and good corrosion resistance.
The ceramsite sand has the characteristics of certain strength, low density, low water absorption, good anti-freezing performance, corrosion resistance and the like, the ceramsite sand reinforcing layer 14 is made by mixing ceramsite sand and unsaturated resin, the ceramsite sand is tightly bonded with the unsaturated resin, so that the overall performance of the whole ceramsite sand reinforcing layer 14 is better, namely, the limiting component 10 is enabled to have certain strength while the corrosion resistance of the limiting component 10 is further enhanced, and when the limiting component 10 is extruded from the outside, the ceramsite sand reinforcing layer 14 can prevent the cable core 100 from being directly extruded to cause the bending deformation of the cable core 100 and further influence the service life of the cable.
The fixing piece is of a tubular structure and comprises an inner tube 11 and an outer tube 12, the inner tube 11 and the outer tube 12 are connected through a plurality of connecting pieces 11-1, the outer tube 12 is sleeved on the inner tube 11, the outer tube 12 and the inner tube 11 are coaxial, the inner tube 11 and the outer tube 12 are divided into a plurality of cavities through the plurality of connecting pieces 11-1, and absorbent paper 1-3 is placed in the cavities.
The outer end of the supporting plate 1-1 is provided with an abutting block 1-11, the abutting block 1-11 is integrally formed on the supporting plate 1-1, and the abutting block 1-11 is an arc-shaped plate which can be completely attached and abutted on the inner wall of the supporting tube 1.
The first waterproof layer 4 is a hollow layer, the first waterproof layer 4 is made of polytetrafluoroethylene, the polytetrafluoroethylene has good corrosion resistance, water-absorbing polymer particles 4-1 are distributed in the first waterproof layer 4, the main components of the water-absorbing polymer are acrylic acid and water-absorbing resin fine particles with the diameter of 150 microns, the water-absorbing performance of the water-absorbing polymer particles 4-1 is good, and after the cable is used for a long time, due to the action of physical external force or the influence of the environment where the cable is located, partial water breaks through the second waterproof layer 5 and further passes through the first waterproof layer 4, the water-absorbing polymer particles 4-1 can absorb the water to prevent the water from further penetrating into the cable.
The second waterproof layer 5 is a waterproof coating layer with a lotus leaf effect, polyvinylpyrrolidone is added into the waterproof coating, and is added into the waterproof coating as a stabilizer, so that colloidal particles are prevented from coalescing and coagulating, the compactness of a waterproof film layer formed by the waterproof coating is good, the lotus leaf efficiency is achieved, and the second waterproof layer 5 with the lotus leaf effect can ensure that external moisture permeates into the cable as far as possible.
The supporting tube 1, the supporting plate 1-1 and the fixing piece are made of silicon rubber, and the silicon rubber has good low-temperature resistance and good air permeability, so that the normal work of the cable is not influenced.
The elastic member 10-1 is made of mica tape, the mica tape is a fire-resistant insulating material and has good flexibility, and when the cable is extruded, the good flexibility is more convenient for the position compensation of the limiting component 10, so that the deformation of the wire core 100 caused by extrusion is avoided.
The cable outer side is further provided with a cable heat-insulating sleeve 6, the cable heat-insulating sleeve 6 comprises an insulating layer 6-1, a heat-insulating layer 6-2 and an protective layer 6-3 which are sequentially arranged, the insulating layer 6-1 is coated on the outer side of the second waterproof layer 5, a tightening assembly 7 is arranged outside the cable heat-insulating sleeve 6, the tightening assembly 7 comprises a tightening belt 7-1 made of elastic materials and a locking piece 7-2, one side of the tightening belt 7-1 is provided with an installation part with an installation hole, the tightening belt 7-1 is sleeved on the outer side of the protective layer 6-3, and the locking piece 7-2 penetrates through the installation hole to lock the cable heat-insulating sleeve 6 on the cable.
The working principle is as follows: when the low-temperature-resistant and corrosion-resistant cable is used, the cable heat-insulating sleeve 6 is not needed when the external environment temperature is high for a long time, the cable has good corrosion resistance due to the arrangement of the corrosion-resistant layer 3, the second waterproof layer 5, the first waterproof layer 4 and the water-absorbing paper 1-3, and the arranged low-temperature-resistant layer 2 also has certain cold resistance, so that the adverse effect of temperature difference caused by temperature reduction at night on the cable can be resisted; when the operational environment of cable belongs to long-term low temperature state, need establish cable insulation support 6 and fix on the cable through cramping subassembly 7 in the outside cover of cable so that the cable has good low temperature resistant characteristic, spacing subassembly 10 that is used for fixing sinle silk 100 simultaneously can furthest guarantee the cable when receiving the effect of physical external force through the elastic component 10-1 of mica tape material is spacing in stay tube 1, the distance between sinle silk 100 is far away in order to prevent signal interference, so the comprehensive properties of this kind of low temperature resistant corrosion resistant cable is better.
As described above, the above embodiments are not intended to limit the present invention, and modifications and equivalent variations made by those skilled in the art based on the spirit of the present invention are within the technical scope of the present invention.
Claims (10)
1. The utility model provides a low temperature resistant corrosion-resistant cable, characterized in that, include many sinle silk (100), be used for protecting many stay tube (1) of sinle silk (100) and along low temperature resistant layer (2), corrosion resistant layer (3), first waterproof layer (4) and second waterproof layer (5) that stay tube (1) outer wall set gradually from inside to outside, set up in the cavity of stay tube (1) and be used for fixing many the stop gear of sinle silk (100), stop gear includes a plurality of spacing subassemblies (10), and is a plurality of spacing subassembly one-to-one cladding is many on sinle silk (100), one of them spacing subassembly (10) distributes in the center of stay tube (1), the backup pad (1-1) of a plurality of all with stay tube (1) inner wall butt of circumference interval fixed of this spacing subassembly (10), arbitrary adjacent two backup pad (1-1) with enclose between stay tube (1) and close and form a accommodation space, other a plurality of spacing subassembly (10) one-to-one locate in a plurality of accommodation space, and other a plurality of this spacing subassembly (10) are fixed respectively through an elastic component (10) are located in the cotton part (1) the cotton place of glass fiber piece (1), fill in the accommodation space (1), the cotton subassembly (10).
2. The cable with low temperature resistance and corrosion resistance according to claim 1, wherein the limiting component (10) comprises a fixing member and a first glass fiber layer (13), a ceramsite sand reinforcing layer (14) and a second glass fiber layer (15) which are sequentially arranged from inside to outside along the outer wall of the cable core (100) arranged in the limiting component (10), the fixing member is of a tubular structure, the second glass fiber layer (15) is fixed on the inner wall of the fixing member, and the first glass fiber layer is coated on the outer wall of the cable core (100).
3. The cable with low temperature resistance and corrosion resistance according to claim 2, wherein the fixing member comprises an inner tube (11), an outer tube (12) sleeved outside the inner tube (11), and a plurality of connecting members (11-1) connected between the inner tube (11) and the outer tube (12), the inner tube (11) and the outer tube (12) are divided into a plurality of cavities by the plurality of connecting members (11-1), water absorbent paper (1-3) is arranged in each cavity, and the second glass fiber layer (15) is fixed on the inner wall of the inner tube (11).
4. A cable with low temperature resistance and corrosion resistance according to claim 3, wherein the support plate (1-1) is provided with an abutting plate (1-11), the abutting plate (1-11) abuts against the inner wall of the support tube (1), the abutting plate (1-11) is integrally formed on the support plate (1-1), and the abutting plate (1-11) is an arc-shaped plate, so that the abutting plate (1-11) abuts against the inner wall of the support tube (1).
5. The cable according to claim 3 or 4, wherein the first waterproof layer (4) is a hollow layer structure, the first waterproof layer (4) is made of polytetrafluoroethylene, and the first waterproof layer (4) is filled with water-absorbing polymer particles (4-1).
6. The cable of claim 5, wherein the second waterproof layer (5) is a waterproof paint layer having a lotus effect, and the second waterproof layer (5) comprises a component of polyvinylpyrrolidone.
7. The cable with low temperature resistance and corrosion resistance according to claim 6, wherein the supporting tube (1), the supporting plate (1-1) and the fixing member are made of silicone rubber.
8. The cable of claim 7, wherein the connector (11-1) is made of mica tape.
9. The cable with low temperature resistance and corrosion resistance according to claim 8, wherein a cable insulation sleeve (6) is fixedly sleeved outside the second waterproof layer (5), the cable insulation sleeve (6) comprises an insulation layer (6-1), an insulation layer (6-2) and a protection layer (6-3) which are sequentially arranged, and the insulation layer (6-1) is wrapped outside the second waterproof layer (5).
10. The cable of claim 9, wherein the cable insulation sleeve (6) is externally provided with a tightening assembly (7), the tightening assembly (7) comprises a tightening belt (7-1) and a locking member (7-2) which are made of elastic materials, two ends of the tightening belt (7-1) are respectively provided with an installation part with an installation hole, the tightening belt (7-1) is wound on the outer side of the protective layer (6-3), and the locking member (7-2) penetrates through the two installation holes so that the tightening belt (7-1) tightens the cable insulation sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110827815.7A CN113611448B (en) | 2021-07-22 | 2021-07-22 | Low-temperature-resistant and corrosion-resistant cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110827815.7A CN113611448B (en) | 2021-07-22 | 2021-07-22 | Low-temperature-resistant and corrosion-resistant cable |
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| Publication Number | Publication Date |
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| CN113611448A CN113611448A (en) | 2021-11-05 |
| CN113611448B true CN113611448B (en) | 2022-12-27 |
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| CN202110827815.7A Active CN113611448B (en) | 2021-07-22 | 2021-07-22 | Low-temperature-resistant and corrosion-resistant cable |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3335325A1 (en) * | 1983-09-27 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | FLEXIBLE POWER LINE WITH PROFILE CORE AND CARRIER |
| JP2008192480A (en) * | 2007-02-06 | 2008-08-21 | Fujikura Ltd | Variant extrusion die and electric wire |
| CN104835575A (en) * | 2015-03-28 | 2015-08-12 | 安徽中天电缆有限公司 | Anticorrosion low temperature resistant industrial cable |
| CN109360687A (en) * | 2018-11-30 | 2019-02-19 | 黄石昌达线缆股份有限公司 | A kind of high-temperature-resistant and anti-corrosion environment-friendly type cable |
| CN210349348U (en) * | 2019-10-29 | 2020-04-17 | 青岛海河特种电缆制造有限公司 | Fill electric pile cable |
| JP2020095790A (en) * | 2018-12-10 | 2020-06-18 | 日立金属株式会社 | cable |
| CN111354509A (en) * | 2020-05-01 | 2020-06-30 | 黄汝芬 | Umbilical cable system |
| CN211788265U (en) * | 2019-12-25 | 2020-10-27 | 江苏永鼎盛达电缆有限公司 | Double-layer co-extrusion flame-retardant fire-resistant cable |
-
2021
- 2021-07-22 CN CN202110827815.7A patent/CN113611448B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3335325A1 (en) * | 1983-09-27 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | FLEXIBLE POWER LINE WITH PROFILE CORE AND CARRIER |
| JP2008192480A (en) * | 2007-02-06 | 2008-08-21 | Fujikura Ltd | Variant extrusion die and electric wire |
| CN104835575A (en) * | 2015-03-28 | 2015-08-12 | 安徽中天电缆有限公司 | Anticorrosion low temperature resistant industrial cable |
| CN109360687A (en) * | 2018-11-30 | 2019-02-19 | 黄石昌达线缆股份有限公司 | A kind of high-temperature-resistant and anti-corrosion environment-friendly type cable |
| JP2020095790A (en) * | 2018-12-10 | 2020-06-18 | 日立金属株式会社 | cable |
| CN210349348U (en) * | 2019-10-29 | 2020-04-17 | 青岛海河特种电缆制造有限公司 | Fill electric pile cable |
| CN211788265U (en) * | 2019-12-25 | 2020-10-27 | 江苏永鼎盛达电缆有限公司 | Double-layer co-extrusion flame-retardant fire-resistant cable |
| CN111354509A (en) * | 2020-05-01 | 2020-06-30 | 黄汝芬 | Umbilical cable system |
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| CN113611448A (en) | 2021-11-05 |
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Denomination of invention: A low temperature and corrosion resistant cable Effective date of registration: 20230902 Granted publication date: 20221227 Pledgee: Tongyuan sub branch of Zhejiang Haiyan Rural Commercial Bank Co.,Ltd. Pledgor: HAIYAN EDSON SPECIAL CABLE Co.,Ltd. Registration number: Y2023330001933 |