CN113990565B - Multilayer fireproof environment-friendly cable - Google Patents
Multilayer fireproof environment-friendly cable Download PDFInfo
- Publication number
- CN113990565B CN113990565B CN202111260046.3A CN202111260046A CN113990565B CN 113990565 B CN113990565 B CN 113990565B CN 202111260046 A CN202111260046 A CN 202111260046A CN 113990565 B CN113990565 B CN 113990565B
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- fireproof
- parts
- central
- friendly
- 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.)
- Active
Links
Images
Classifications
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- 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
-
- 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
-
- 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
- H01B7/20—Metal tubes, e.g. lead sheaths
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a multilayer fireproof environment-friendly cable which comprises a central copper pipe arranged at the innermost layer, an inner copper pipe arranged outside the central copper pipe, an outer copper pipe arranged outside the inner copper pipe and a fireproof environment-friendly outer sheath arranged outside the outer copper pipe in a clinging manner, wherein the inner copper pipe is arranged at the outer part of the central copper pipe; the central copper pipe, the inner copper pipe and the outer copper pipe are arranged concentrically; the interior of the central copper pipe is filled with cooling liquid, and a mounting space of the fireproof cable core is formed between the central copper pipe and the inner copper pipe; the cooling space is formed between the inner copper pipe and the outer copper pipe, the inner copper pipe and the outer copper pipe are correspondingly supported and installed through the annular supporting elastic piece, the inner copper pipe and the outer copper pipe are installed into a whole through the annular supporting elastic piece, and cooling liquid is filled between the inner copper pipe and the outer copper pipe. According to the invention, the cable has very good fireproof performance due to the three-layer copper pipe structure, the inner copper pipe and the outer copper pipe on the outer layer can effectively protect the inner fireproof cable core, the copper pipes have good melting points and are not easy to melt, and the fireproof performance is obvious.
Description
Technical Field
The invention relates to the technical field of fireproof cable equipment, in particular to a multilayer fireproof environment-friendly cable.
Background
In the prior art, the fireproof cable is usually applied to the occasions with dense crowds, such as office buildings, residential buildings, subways, shopping malls and other public occasions, and has a very important function, the fireproof performance of the fireproof cable determines the life safety and the property safety of people, so that the requirement on the fireproof cable in the prior art is extremely high, and the fireproof cable can be improved in various aspects in the prior art in order to increase the fireproof performance of the cable.
In the prior art, there are various improvements to fire-resistant cables, and the most common is usually made on the material of the cable, for example: CN 102855985B discloses "a fire-retardant cable with high flame retardancy made of inorganic materials", in which the raw material of the fire-resistant layer is magnesium hydroxide: 85%, serpentine powder: 6%, magnesium calcium carbonate: 4%, sodium silicate: 3%, chlorinated paraffin: 2 percent; the fire-resistant layer has better fire resistance, but the prior art is not enough to improve the fire-resistant layer only from the raw materials of the cable.
For fireproof cables, there are also methods for changing the internal structure thereof to achieve fireproof performance, such as: CN208400588U patent document discloses a "fire-proof cable", in which the outer layer of the cable is provided with a rubber sheath and a peek high-temperature resistant layer, and is further coated with multiple layers of fire-proof paint layers and fluorescent layers, each layer is made of a high-temperature resistant fiber material, and in this technical scheme, the improvement is basically made on each layer of the cable, and the overall internal structure of the cable is not improved in a large direction, so the technical effect of fire-proof is still deficient.
In addition, the fireproof cable in the prior art needs to have excellent fireproof performance and also needs to have better capabilities of resisting pressure, vibration, tension, bending and the like, and the existing fireproof cable is only improved from a layered structure for improving the performance, so that the effect is not ideal.
Therefore, in order to solve the above problems and improve the fire-proof performance of the whole cable, a cable structure with a better fire-proof effect is needed.
Disclosure of Invention
The invention aims to provide a multilayer fireproof environment-friendly cable and a method aiming at the defects in the prior art; the technical scheme is as follows:
a multilayer fireproof environment-friendly cable comprises a central copper pipe arranged at the innermost layer, an inner copper pipe arranged outside the central copper pipe, an outer copper pipe arranged outside the inner copper pipe and a fireproof environment-friendly outer sheath tightly attached to the outside of the outer copper pipe; the central copper pipe, the inner copper pipe and the outer copper pipe are arranged concentrically; the interior of the central copper pipe is filled with cooling liquid, and an installation space of the fireproof cable core is formed between the central copper pipe and the inner copper pipe; the cooling device is characterized in that a cooling space is formed between the inner copper pipe and the outer copper pipe, the inner copper pipe and the outer copper pipe are correspondingly supported and installed through annular supporting elastic pieces, the inner copper pipe and the outer copper pipe are installed into a whole through the annular supporting elastic pieces, and cooling liquid is filled between the inner copper pipe and the outer copper pipe.
Furthermore, a cross-shaped supporting framework is also arranged in the central copper pipe; and fireproof mineral mud is filled in the installation space of the fireproof cable core.
Furthermore, four end faces of the cross-shaped supporting framework are provided with inwards concave spring grooves, each spring groove is internally provided with a spring part and a spring rod connected with the spring part, the end parts of the spring rods are provided with top plates, and the top plates are correspondingly propped against the inner wall of the central copper pipe.
Furthermore, six fireproof cable cores are uniformly arranged between the central copper pipe and the inner copper pipe at intervals; the fireproof cable core comprises an inner conductor, a mica tape insulating layer arranged outside the inner conductor, a flame-retardant layer arranged outside the mica tape insulating layer and a fireproof environment-friendly inner sheath arranged outside the flame-retardant layer.
Further, fire prevention environmental protection inner sheath and fire prevention environmental protection oversheath all set up to low smoke and zero halogen, the heat-resisting fire-retardant sheath of environmental protection, its raw materials include according to part by weight: 10-14 parts of natural rubber, 22-24 parts of chloroprene rubber, 16-18 parts of styrene-butadiene rubber, 2-4 parts of epoxy resin, 2-4 parts of ferric hydroxide colloid, 20-25 parts of magnesium hydroxide, 1.0-1.2 parts of microcrystalline wax, 2-5 parts of white carbon black, 2-3 parts of calcium-zinc stabilizer, 1-1.5 parts of vulcanizing agent DCP, 1-3 parts of auxiliary crosslinking agent TAIC, 1-3 parts of anti-aging agent and 0.7-0.9 part of antioxidant.
Furthermore, the annular supporting elastic pieces are arranged to be of a continuous S-shaped structure, the contact parts of the arc-shaped supporting elastic pieces with the inner copper pipe and the outer copper pipe are fixed in a welding mode, and the annular supporting elastic pieces are evenly arranged in the cooling space at intervals.
Furthermore, the outer walls of the central copper pipe, the inner copper pipe and the outer copper pipe are all arranged into spiral corrugated structures; the rotating direction of the spiral corrugated structure of the inner copper pipe arranged in the middle is opposite to the rotating direction of the spiral corrugated structures of the central copper pipe and the outer copper pipe; the thicknesses of the central copper pipe, the inner copper pipe and the outer copper pipe are set to be 2-5 mm; the distance between the inner copper pipe and the outer copper pipe is set to be 5-10 mm.
Has the advantages that: compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the cable has very good fireproof performance due to the three-layer copper pipe structure, the inner copper pipe and the outer copper pipe on the outer layer can effectively protect the internal fireproof cable core, the copper pipes have good melting points and are not easy to melt, and the fireproof performance is obvious;
(2) in the invention, the cooling liquid is filled in the central copper pipe and between the inner copper pipe and the outer copper pipe, so that external heat can be effectively absorbed when a fire disaster happens, the temperature of the fireproof cable core at the inner side is reduced, the fireproof cable core at the inner side is effectively protected, and the fireproof performance is achieved;
(3) the cross-shaped supporting framework is arranged in the innermost central copper pipe, and the spring groove, the spring part and the like are arranged, so that the integral cable has better compression resistance and shock resistance;
(4) according to the invention, the annular supporting elastic sheet is arranged between the inner copper tube and the outer copper tube, has a very good elastic effect, and is welded and fixed between the inner copper tube and the outer copper tube, so that the whole cable has very good compression resistance and shock resistance;
(5) the central copper pipe, the inner copper pipe and the outer copper pipe are also provided with the spiral corrugated structures, so that the cable has better bending resistance; in addition, the fireproof ring protective sleeve is specifically provided with the raw materials of the other fireproof ring protective sleeve, so that the fireproof and environment-friendly fireproof ring protective sleeve has better fireproof and environment-friendly performances as a whole.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is an axial sectional view of the inner and outer copper pipes according to the present invention;
FIG. 3 is a cross support frame structure according to the present invention;
FIG. 4 is a view showing a structure of the thread corrugation in the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, a multilayer fireproof environment-friendly cable comprises a central copper tube 1 arranged at the innermost layer, an inner copper tube 2 arranged outside the central copper tube 1, an outer copper tube 3 arranged outside the inner copper tube 2, and a fireproof environment-friendly outer sheath 4 closely attached to the outside of the outer copper tube 3; the central copper pipe 1, the inner copper pipe 2 and the outer copper pipe 3 are arranged concentrically; the interior of the central copper pipe 1 is filled with cooling liquid, and an installation space of the fireproof cable core 5 is formed between the central copper pipe 1 and the inner copper pipe 2; interior copper pipe 2 and outer copper pipe 3 between then form the cooling space, correspond through the annular support shell fragment 6 that sets up between interior copper pipe 2 and the outer copper pipe 3 and support the installation, interior copper pipe 2 and outer copper pipe 3 support shell fragment 6 through the annular and install as an organic wholely, and just it has cooling liquid to fill equally between interior copper pipe 2 and the outer copper pipe 3.
The fireproof cable is of a multilayer structure, the whole structure of the fireproof cable is composed of three layers of copper pipes, a central copper pipe is arranged on the innermost side, an inner copper pipe is arranged in the middle, an outer copper pipe is arranged on the outer side, firstly, cooling liquid is filled in the central copper pipe on the innermost side and can be set into liquid such as condensate water, an installation space is formed between the central copper pipe and the inner copper pipe and can be just used for placing a fireproof cable core, the size of the installation space can be set according to the specific outer diameter of the fireproof cable core, the fireproof cable core can be uniformly and seamlessly arranged in the installation space, the outer copper pipe is arranged on the outer side of the inner copper pipe, and a fireproof environment-friendly outer sheath is arranged outside the outer copper pipe.
In addition, cooling liquid is filled between the inner copper pipe and the outer copper pipe, and can be set into condensed water and the like, firstly, the inner copper pipe and the outer copper pipe are arranged outside the device, both the inner copper pipe and the outer copper pipe have very good fireproof performance, even if the outer sheath is melted, the inner fireproof cable core can also normally work under the protection of the two copper pipes, and the copper pipes have high melting points of 1000 ℃, so that the inner cable core can be effectively protected; and the gaps between the central copper pipe and the inner and outer copper pipes are filled with cooling liquid, so that the heat outside the cable can be absorbed rapidly when a fire breaks out, the temperature inside and outside the cable core is reduced, the possibility that the inner cable core is melted is reduced, and the environmental protection performance is improved.
As shown in fig. 1, a cross-shaped supporting framework 7 is also arranged inside the central copper pipe 1; and the installation space of the fireproof cable core 5 is also filled with fireproof mineral mud 8.
In the invention, in order to increase the compression resistance and the installation strength of the central copper pipe, the cross-shaped supporting framework can be arranged in the central copper pipe, and in order to further increase the fireproof performance of the whole cable, fireproof mineral mud can be filled in the installation space.
As shown in fig. 3, four end faces of the cross supporting framework 7 are provided with spring slots 9 which are recessed inwards, each spring slot 9 is provided with a spring element 10 and a spring rod 11 connected with the spring element 10, the end of the spring rod 11 is provided with a top plate 13, and the top plate 13 is correspondingly pressed against the inner wall of the central copper tube 1.
The invention can be further provided with a structure of a cross-shaped supporting framework, spring grooves are arranged at the four end faces of the cross-shaped supporting framework, spring parts and spring rods are arranged in the spring grooves, the spring rods are also provided with top plates which are tightly pressed on the inner wall, and the compression resistance and the shock resistance of the whole cable can be improved through the structure.
Six fireproof cable cores 5 are uniformly arranged between the central copper pipe 1 and the inner copper pipe 2 at intervals; the fireproof cable core 5 comprises an inner conductor 51, a mica tape insulating layer 52 arranged outside the inner conductor 51, a flame retardant layer 53 arranged outside the mica tape insulating layer 52 and a fireproof environment-friendly inner sheath 54 arranged outside the flame retardant layer 53.
The number of the fireproof cable cores can be reasonably set, the mica tape insulating layer replaces a plastic insulating layer in the prior art, the overall flame retardant effect can be improved by matching with the flame retardant layer, and the fireproof environment-friendly inner sheath is arranged.
The fireproof environment-friendly inner sheath 54 and the fireproof environment-friendly outer sheath 4 are both set to be low-smoke halogen-free, environment-friendly heat-resistant and flame-retardant sheaths, and the raw materials comprise the following components in parts by weight: 10-14 parts of natural rubber, 22-24 parts of chloroprene rubber, 16-18 parts of styrene-butadiene rubber, 2-4 parts of epoxy resin, 2-4 parts of ferric hydroxide colloid, 20-25 parts of magnesium hydroxide, 1.0-1.2 parts of microcrystalline wax, 2-5 parts of white carbon black, 2-3 parts of calcium-zinc stabilizer, 1-1.5 parts of vulcanizing agent DCP, 1-3 parts of auxiliary crosslinking agent TAIC, 1-3 parts of anti-aging agent and 0.7-0.9 part of antioxidant.
The fireproof environment-friendly inner sheath and the fireproof environment-friendly outer sheath are both set to be low-smoke halogen-free environment-friendly heat-resistant flame-retardant sheaths, and the specific raw material components are as described above, so that the inner sheath and the outer sheath both have good fireproof performance and environment-friendly performance.
The annular supporting elastic sheet 6 is of a continuous S-shaped structure, the contact positions of the arc-shaped supporting elastic sheet and the inner copper pipe 2 and the contact positions of the arc-shaped supporting elastic sheet and the outer copper pipe 3 are fixed in a welding mode, and the annular supporting elastic sheet 6 is uniformly arranged in the cooling space at intervals.
The annular supporting elastic sheet is arranged between the inner copper pipe and the outer copper pipe, is S-shaped and is uniformly welded between the inner copper pipe and the outer copper pipe at intervals, so that the integral environment-friendly cable has better pressure resistance, can rebound through the elasticity of the annular supporting elastic sheet when being subjected to external pressure, has better shock resistance, has buffering capacity integrally, can absorb external impact force and the like, and can normally work under severe environments such as earthquake, gusty wind, seabed and the like.
As shown in fig. 4, the outer walls of the central copper tube 1, the inner copper tube 2 and the outer copper tube 3 are all provided with a spiral corrugated structure 12; the rotation direction of the spiral corrugated structure 12 of the inner copper pipe 2 arranged in the middle is opposite to the rotation direction of the spiral corrugated structures 12 of the central copper pipe 1 and the outer copper pipe 3; the thicknesses of the central copper pipe 1, the inner copper pipe 2 and the outer copper pipe 3 are set to be 2-5mm correspondingly; the distance between the inner copper pipe 2 and the outer copper pipe 3 is set to be 5-10 mm.
The spiral corrugated structures on the outer walls of the central copper pipe, the inner copper pipe and the outer copper pipe are arranged, and the rotating directions of the spiral corrugated structures outside the three copper pipes are arranged, so that the integral cable has better bending resistance, and the toughness of the integral cable is enhanced.
The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the invention and the appended claims, and all equivalent changes and modifications made within the spirit and scope of the invention as claimed should be included in the appended claims.
Claims (7)
1. The utility model provides a multilayer formula fire prevention environmental protection cable which characterized in that: the fireproof copper tube comprises a central copper tube (1) arranged at the innermost layer, an inner copper tube (2) arranged outside the central copper tube (1), an outer copper tube (3) arranged outside the inner copper tube (2), and a fireproof environment-friendly outer sheath (4) closely attached to the outside of the outer copper tube (3); the central copper pipe (1), the inner copper pipe (2) and the outer copper pipe (3) are arranged concentrically; the interior of the central copper pipe (1) is filled with cooling liquid, and an installation space of the fireproof cable core (5) is formed between the central copper pipe (1) and the inner copper pipe (2); the cooling device is characterized in that a cooling space is formed between the inner copper pipe (2) and the outer copper pipe (3), the inner copper pipe (2) and the outer copper pipe (3) are correspondingly supported and installed through an annular supporting elastic sheet (6), the inner copper pipe (2) and the outer copper pipe (3) are installed into a whole through the annular supporting elastic sheet (6), and cooling liquid is filled between the inner copper pipe (2) and the outer copper pipe (3) in the same way.
2. The multi-layer fireproof environment-friendly cable according to claim 1, wherein: a cross supporting framework (7) is also arranged in the central copper pipe (1); and the installation space of the fireproof cable core (5) is also filled with fireproof mineral mud (8).
3. The multi-layer fire-proof environment-friendly cable according to claim 2, wherein: four terminal surfaces of cross braced skeleton (7) department still all be provided with inside sunken spring groove (9), all be provided with spring part (10) and spring lever (11) that link to each other with spring part (10) in each spring groove (9), and roof (13) are installed again to the tip of spring lever (11), roof (13) then corresponding top tightly on the inner wall of center copper pipe (1).
4. The multi-layer fireproof environment-friendly cable according to claim 1, wherein: six fireproof cable cores (5) with uniform intervals are arranged between the central copper pipe (1) and the inner copper pipe (2); the fireproof cable core (5) comprises an inner conductor (51), a mica tape insulating layer (52) arranged outside the inner conductor (51), a flame retardant layer (53) arranged outside the mica tape insulating layer (52) and a fireproof environment-friendly inner sheath (54) arranged outside the flame retardant layer (53).
5. The multilayer fireproof environment-friendly cable according to claim 4, characterized in that: fireproof environmental protection inner sheath (54) and fireproof environmental protection oversheath (4) all set up to low smoke and zero halogen, the heat-resisting fire-retardant sheath of environmental protection, its raw materials include according to part by weight: 10-14 parts of natural rubber, 22-24 parts of chloroprene rubber, 16-18 parts of styrene-butadiene rubber, 2-4 parts of epoxy resin, 2-4 parts of ferric hydroxide colloid, 20-25 parts of magnesium hydroxide, 1.0-1.2 parts of microcrystalline wax, 2-5 parts of white carbon black, 2-3 parts of calcium-zinc stabilizer, 1-1.5 parts of vulcanizing agent DCP, 1-3 parts of auxiliary crosslinking agent TAIC, 1-3 parts of anti-aging agent and 0.7-0.9 part of antioxidant.
6. The multi-layer fireproof environment-friendly cable according to claim 1, wherein: the annular support elastic sheet (6) is of a continuous S-shaped structure, the contact parts of the arc-shaped support elastic sheet, the inner copper pipe (2) and the outer copper pipe (3) are fixed in a welding mode, and the annular support elastic sheet (6) is uniformly arranged in the cooling space at intervals.
7. The multi-layer fireproof environment-friendly cable according to claim 1, wherein: the outer walls of the central copper pipe (1), the inner copper pipe (2) and the outer copper pipe (3) are all arranged into spiral corrugated structures (12); the rotating direction of the spiral corrugated structure (12) of the inner copper pipe (2) arranged in the middle is opposite to the rotating direction of the spiral corrugated structures (12) of the central copper pipe (1) and the outer copper pipe (3); the thicknesses of the central copper pipe (1), the inner copper pipe (2) and the outer copper pipe (3) are set to be 2-5mm correspondingly; the distance between the inner copper pipe (2) and the outer copper pipe (3) is set to be 5-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260046.3A CN113990565B (en) | 2021-10-27 | 2021-10-27 | Multilayer fireproof environment-friendly cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260046.3A CN113990565B (en) | 2021-10-27 | 2021-10-27 | Multilayer fireproof environment-friendly cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113990565A CN113990565A (en) | 2022-01-28 |
| CN113990565B true CN113990565B (en) | 2022-06-07 |
Family
ID=79743082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111260046.3A Active CN113990565B (en) | 2021-10-27 | 2021-10-27 | Multilayer fireproof environment-friendly cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113990565B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114093562B (en) * | 2021-10-29 | 2023-12-08 | 江苏帝诚线缆有限公司 | Fire monitoring is with fire-retardant fireproof cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3784722A (en) * | 1972-07-17 | 1974-01-08 | D Goodman | Water-cooled electric furnace cable |
| DE2549241A1 (en) * | 1975-11-04 | 1977-05-05 | Kabel & Lackdrahtfab Gmbh | High-tension water-cooled electric cable - has polyethylene or ethylene-propylene rubber insulation and metal shield |
| CN106847377A (en) * | 2017-03-29 | 2017-06-13 | 非凡电缆集团有限公司 | A kind of high-temperature resistant air cooling cable |
| CN208368230U (en) * | 2018-07-11 | 2019-01-11 | 红旗电缆电器仪表集团有限公司 | A kind of protection against insect baits the good photovoltaic cable of effect |
| CN109390078A (en) * | 2018-11-22 | 2019-02-26 | 深圳供电局有限公司 | A kind of cryogenic liquid forced cooling cable structure |
| CN109741860A (en) * | 2019-02-19 | 2019-05-10 | 江苏中利集团股份有限公司 | A kind of adjustable high-power coaxial liquid cooling cable |
| CN212516679U (en) * | 2020-07-10 | 2021-02-09 | 南京淳畅电子科技有限公司 | Communication composite cable |
-
2021
- 2021-10-27 CN CN202111260046.3A patent/CN113990565B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3784722A (en) * | 1972-07-17 | 1974-01-08 | D Goodman | Water-cooled electric furnace cable |
| DE2549241A1 (en) * | 1975-11-04 | 1977-05-05 | Kabel & Lackdrahtfab Gmbh | High-tension water-cooled electric cable - has polyethylene or ethylene-propylene rubber insulation and metal shield |
| CN106847377A (en) * | 2017-03-29 | 2017-06-13 | 非凡电缆集团有限公司 | A kind of high-temperature resistant air cooling cable |
| CN208368230U (en) * | 2018-07-11 | 2019-01-11 | 红旗电缆电器仪表集团有限公司 | A kind of protection against insect baits the good photovoltaic cable of effect |
| CN109390078A (en) * | 2018-11-22 | 2019-02-26 | 深圳供电局有限公司 | A kind of cryogenic liquid forced cooling cable structure |
| CN109741860A (en) * | 2019-02-19 | 2019-05-10 | 江苏中利集团股份有限公司 | A kind of adjustable high-power coaxial liquid cooling cable |
| CN212516679U (en) * | 2020-07-10 | 2021-02-09 | 南京淳畅电子科技有限公司 | Communication composite cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113990565A (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2023024596A1 (en) | Flame-retardant fire-resistant power cable resistant to spray and vibration | |
| CN113990565B (en) | Multilayer fireproof environment-friendly cable | |
| CN102842370B (en) | Environment-friendly composite functional flexible fireproof cable | |
| CN214541663U (en) | High temperature resistant fireproof cable | |
| CN206758147U (en) | A kind of high-strength cable | |
| CN211957210U (en) | Crosslinked polyethylene insulated control cable | |
| CN111210934B (en) | Tensile type fireproof flame-retardant cable | |
| CN211089101U (en) | High-temperature-resistant flexible fireproof cable intermediate joint | |
| CN216287673U (en) | High-temperature-resistant, corrosion-resistant and flame-retardant composite cable | |
| CN208368235U (en) | A kind of fire-retardant compound shell-less power cable | |
| CN215770597U (en) | Novel special high-temperature-resistant control cable | |
| CN211742696U (en) | Polyolefin insulated communication cable | |
| CN114093562B (en) | Fire monitoring is with fire-retardant fireproof cable | |
| CN211788285U (en) | Fireproof cable | |
| AU2020102675A4 (en) | Shock absorption cable joint for high-voltage cable | |
| CN212032734U (en) | Flexible heat-insulation fireproof cable | |
| CN209912575U (en) | Environment-friendly high-temperature-resistant fireproof control cable | |
| CN210039735U (en) | High-temperature-resistant and fire-resistant cable | |
| CN220753159U (en) | Huang Jiaozhi sleeve with high compression resistance | |
| CN205862854U (en) | A kind of reinforced fire-resistant high tension cable | |
| CN219891941U (en) | Fluoroplastic wire and cable for generator set | |
| CN217788051U (en) | High-strength high-temperature-resistant solar photovoltaic cable | |
| CN218216479U (en) | Cable polyvinyl chloride pipe | |
| CN205302996U (en) | Flexible cable of energy -conserving high temperature and high pressure | |
| CN103903768A (en) | Multicore high-voltage fire resistant cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |