CN109461535B - Copper core polyethylene insulation flame-retardant cable for smart power grid - Google Patents
Copper core polyethylene insulation flame-retardant cable for smart power grid Download PDFInfo
- Publication number
- CN109461535B CN109461535B CN201811245950.5A CN201811245950A CN109461535B CN 109461535 B CN109461535 B CN 109461535B CN 201811245950 A CN201811245950 A CN 201811245950A CN 109461535 B CN109461535 B CN 109461535B
- Authority
- CN
- China
- Prior art keywords
- fan
- copper core
- layer
- valve
- cable
- 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
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 35
- -1 polyethylene Polymers 0.000 title claims abstract description 35
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 35
- 239000003063 flame retardant Substances 0.000 title claims abstract description 31
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 title claims description 8
- 238000005253 cladding Methods 0.000 claims abstract description 3
- 239000000779 smoke Substances 0.000 claims description 34
- 239000011261 inert gas Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- 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
- H01B7/02—Disposition of insulation
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
Landscapes
- Fire-Detection Mechanisms (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a copper core polyethylene insulated flame-retardant intelligent power grid cable which sequentially comprises an outer sheath, an armor layer, a flame-retardant layer, a shielding layer and a polyethylene layer from outside to inside, wherein a copper core wire and a tensile rope are arranged in the insulating layer, an inner insulating layer positioned in the polyethylene layer is arranged outside the copper core wire, and a tensile rope cladding positioned in the polyethylene layer is arranged outside the tensile rope. The cable has the advantages of flame retardance and good insulating property.
Description
Technical Field
The invention relates to the field of cables, in particular to a copper core polyethylene insulation flame-retardant cable for a smart grid.
Background
One of the common facilities for power and signal transmission during the transmission of the cable is that the cable is the main equipment for power transmission in the power grid, and cables with different specifications are required to be used for transmitting different power, during the transmission, the cable may generate heat and burn, and the existing cable can achieve the purposes of insulation and flame retardance by coating insulation and flame retardant materials, but sometimes the cable may burn or scald, which is relatively unfavorable for the maintenance of the power grid.
Disclosure of Invention
The invention aims to: the invention aims to overcome the defects of the prior art and provides a copper core polyethylene insulation flame-retardant cable for a smart grid.
The technical scheme is as follows: the utility model provides a cable, includes oversheath, armor, fire-retardant layer, shielding layer, polyethylene layer in proper order from outer to interior, insulating layer in have copper core wire and tensile rope, copper core wire has the inner insulating layer that is located the polyethylene layer outward, tensile rope has the tensile rope covering that is located the polyethylene layer outward.
Further, the inner insulating layer is a polyethylene layer; the flame-retardant layer is a low-smoke halogen-free flame-retardant layer.
Further, two copper core wires and one pull-resistant rope are arranged in the polyethylene layer.
The cable comprises a cable body and a protection device, wherein the protection device comprises two end units and an intermediate unit, and a flexible pipe surrounding the cable body is connected between the two end units and the intermediate unit; the end unit comprises a movable ring, a first circular column part and a circular ring plate fixed with the first circular column part, wherein the inner side of the circular ring plate is fixedly connected with the cable body through adhesive glue in a sealing way, a plurality of L-shaped channels are arranged in the circular ring plate, one end of each L-shaped channel is positioned on the outer circumferential surface of the circular ring plate, the other end of each L-shaped channel is positioned on one side of the circular ring plate, which is close to the first circular column part, a plurality of guide posts are also fixed on the circular ring plate, one magnet is fixed at the end of each guide post, the movable ring is provided with a plurality of limiting holes, the number of the limiting holes is equal to the number of the guide posts, each limiting hole is penetrated by one guide post, one side of the movable ring, which is far from the circular ring plate, is internally fixed with iron blocks, the number of the grooves is equal to the number of the guide posts, one side of the circular ring, which faces the circular ring plate, is fixed with a plurality of frustum-shaped rubber plugs, the number of the L-shaped channels, and the movable ring can be inserted into one end of the L-shaped channels so that the L-shaped channels are closed; the middle unit comprises a controller, a second circular cylindrical part, an inert gas storage unit and a second fan, wherein the second circular cylindrical part is provided with a first through hole and a second through hole, the inert gas storage unit is connected with the first through hole through a first pipeline, the first pipeline is provided with the first fan and a first valve, the second fan is connected with the second through hole through a second pipeline, the second pipeline is provided with a second valve, and the inner side wall of the second circular cylindrical part is also provided with a temperature sensor and a smoke sensor; the first valve, the second valve, the first fan, the second fan, the temperature sensor and the smoke sensor are all connected with the controller; the cable body includes oversheath, armor, fire-retardant layer, shielding layer, polyethylene layer in proper order from outer to interior, insulating layer in situ has copper core wire and tensile rope, copper core wire has the inner insulation layer that is located the polyethylene layer outward, tensile rope has the tensile rope covering that is located the polyethylene layer outward.
Further, the number of the guide rods is more than or equal to 8.
Further, the flexible tube is made of a flame retardant material.
Further, the guide rod and the magnet are cylindrical, and the diameter of the magnet is larger than that of the guide rod.
Further, the controller controls the second fan, the first valve and the second valve to be closed when the measured value of the temperature sensor is smaller than a first threshold value and the smoke sensor does not sense smoke; when the measured value of the temperature sensor is larger than or equal to a first threshold value and smaller than a second threshold value and the smoke sensor does not sense smoke, the first fan and the first valve are closed, and the second fan and the second valve are opened; and when the measured value of the temperature sensor is larger than or equal to a second threshold value or the smoke sensor senses smoke, the second fan and the second valve are closed, and the first fan and the first valve are opened.
Further, the intermediate unit further comprises a wireless communication unit, and when the measured value of the temperature sensor is larger than or equal to a second threshold value or the smoke sensor senses smoke, the controller controls the wireless communication unit to emit an alarm signal.
Further, the protection device has a plurality of, in any adjacent two protection devices, one end unit of one protection device and one end unit of the other protection device are fixedly connected.
Further, the flexible tube is made of a low smoke, halogen free, flame retardant material.
The beneficial effects are that: the cable is also sleeved with the protection device at the outer sheath, so that heat dissipation can be provided when needed, and the cable can be timely flame-retardant when combustion occurs.
Drawings
FIG. 1 is a schematic view of a cable body;
FIG. 2 is a schematic view of a cable with a rubber stopper not closing an L-shaped channel;
FIG. 3 is a schematic view of a cable with a rubber stopper closing an L-shaped channel;
fig. 4 is a schematic diagram of a movable ring.
Detailed Description
Reference numerals: 1.2 end units; 3 an intermediate unit; 4a flexible tube; 5 a cable body; 1.1 a first circular cylindrical portion; 1.2 a circular plate; 1.3L-shaped channels; 1.4 guide rods; 1.5 magnets; 1.6 a movable ring; 1.7 rubber stoppers; 1.8 iron blocks; 1.9 limiting holes; 3.1 a second annular cylindrical portion; 3.2 an inert gas storage unit; 3.3 a first fan; 3.4 a first valve; 3.5 a temperature sensor; 3.6 a second fan; 3.7 a second valve; 3.8 smoke sensor; 5.1 an outer sheath; 5.2 armor layers; 5.3 a flame retardant layer; 5.4 a shielding layer; 5.5 polyethylene layers; 5.6 copper cores; 5.7 an inner insulating layer; 5.8 pulling resistance rope; 5.9 tensile cord coating.
As shown in fig. 4, the cable sequentially comprises an outer sheath 5.1, an armor layer 5.2, a flame retardant layer 5.3, a shielding layer 5.4 and a polyethylene layer 5.5 from outside to inside, wherein a copper core wire 5.6 and a tensile rope 5.8 are arranged in the insulating layer, an inner insulating layer 5.7 positioned in the polyethylene layer is arranged outside the copper core wire, and a tensile rope cladding 5.9 positioned in the polyethylene layer is arranged outside the tensile rope. The inner insulating layer is a polyethylene layer; the flame-retardant layer is a low-smoke halogen-free flame-retardant layer. The polyethylene layer is internally provided with two copper core wires and an anti-pulling rope.
In addition, protection devices 1 and 2 are added for increasing heat dissipation and flame retarding effects, the protection devices comprise two end units and an intermediate unit 3, and flexible pipes 4 surrounding the cable body are connected between the two end units 1 and 2 and the intermediate unit 3; the end unit comprises a movable ring 1.6, a first circular cylindrical part 1.1 and a circular ring plate 1.2 fixed with the first circular cylindrical part, wherein the inner side of the circular ring plate 1.2 is fixedly connected with the cable body 5 through adhesive glue in a sealing way, a plurality of L-shaped channels 1.3 are arranged in the circular ring plate 1.2, one end of each L-shaped channel 1.3 is positioned on the outer circumferential surface of the circular ring plate 1.2, the other end of each L-shaped channel is positioned on one side of the circular ring plate close to the first circular cylindrical part 1.1, a plurality of guide posts 1.4 are also fixed on the circular ring plate, one magnet 1.5 is fixed at the end of each guide post 1.4, the movable ring is provided with a plurality of limiting holes 1.9, the number of the limiting holes 1.9 is equal to the number of the guide posts 1.4, a plurality of grooves are formed in one side of the circular ring plate 1.6 far away from the first circular cylindrical part 1.1, a plurality of iron blocks 1.8 are fixed in the grooves, the number of grooves are formed in one side of the grooves, the number of the grooves is equal to the number of the L-shaped channels 1.4, and the number of the rubber plugs can be inserted into one side of the circular ring plate is equal to the number of L-shaped channels, and the number of the rubber plugs is equal to the number of L-shaped channels and is 1.7; the middle unit comprises a controller, a second circular cylindrical part 3.1, an inert gas storage unit 3.2 and a second fan 3.6, wherein the second circular cylindrical part is provided with a first through hole and a second through hole, the inert gas storage unit is connected with the first through hole through a first pipeline, the first pipeline is provided with a first fan 3.3 and a first valve 3.4, the second fan 3.6 is connected with the second through hole through a second pipeline, the second pipeline is provided with a second valve 3.7, and the inner side wall of the second circular cylindrical part is also provided with a temperature sensor 3.5 and a smoke sensor 3.7; the first valve 3.4, the second valve 3.7, the first fan 3.3, the second fan 3.6, the temperature sensor 3.5 and the smoke sensor 3.8 are all connected with the controller.
The number of the guide rods is more than or equal to 8. The flexible tube is made of a flame retardant material. The guide rod and the magnet are cylindrical, and the diameter of the magnet is larger than that of the guide rod. The protection device is provided with a plurality of protection devices, and one end unit of one protection device is fixedly connected with one end unit of the other protection device in any two adjacent protection devices. The flexible tube is made of a low smoke halogen-free flame retardant material.
In order to overcome the problems, the controller controls the second fan, the first valve and the second valve to be closed when the measured value of the temperature sensor is smaller than a first threshold value and the smoke sensor does not sense smoke (the second fan is not required to dissipate heat and naturally dissipates heat); when the measured value of the temperature sensor is larger than or equal to a first threshold value and smaller than a second threshold value, and the smoke sensor does not sense smoke, the first fan and the first valve are closed, the second fan and the second valve are opened (at the moment, although combustion does not occur, the cable is too high in temperature to be unfavorable for the cable, so that the second fan is opened to dissipate heat, the second fan is used for carrying out air suction operation, and under the action of air flow of the second fan, the movable ring of the end unit can be attracted with the magnet at the end part of the guide pillar, so that a plurality of L-shaped channels are opened for circulating air flow); when the measured value of the temperature sensor is larger than or equal to a second threshold value or the smoke sensor senses smoke, the second fan and the second valve are closed, the first fan and the first valve are opened, and the controller controls the wireless communication unit to emit an alarm signal. At this time, it is explained that combustion occurs, inert gas of the inert gas storage unit is blown into the flexible tube by the first fan, and under the action of air flow, the movable ring is pushed to overcome the attraction force of the magnet, the rubber plugs seal the end parts of the L-shaped channels, and the rubber plugs are frustum-shaped and elastic, so that the rubber plugs can be pulled out of the L-shaped channels under the action of air suction of the second fan, and can be pushed to be inserted into the L-shaped channels under the condition that the first fan blows air. And after the first fan is started for a certain time, the first fan and the first valve can be closed, and at the moment, the flexible pipe is filled with inert gas, so that the flame retardance can be realized. And the alarm can remind timely maintenance.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined in the following claims.
Claims (7)
1. The cable for the copper core polyethylene insulation flame-retardant smart power grid is characterized by comprising a cable body and a protection device, wherein the protection device comprises two end units and a middle unit, and flexible pipes surrounding the cable body are connected between the two end units and the middle unit; the end unit comprises a movable ring, a first circular column part and a circular ring plate fixed with the first circular column part, wherein the inner side of the circular ring plate is fixedly connected with the cable body through adhesive glue in a sealing way, a plurality of L-shaped channels are arranged in the circular ring plate, one end of each L-shaped channel is positioned on the outer circumferential surface of the circular ring plate, the other end of each L-shaped channel is positioned on one side of the circular ring plate, which is close to the first circular column part, a plurality of guide posts are also fixed on the circular ring plate, one magnet is fixed at the end of each guide post, the movable ring is provided with a plurality of limiting holes, the number of the limiting holes is equal to the number of the guide posts, each limiting hole is penetrated by one guide post, one side of the movable ring, which is far from the circular ring plate, is internally fixed with iron blocks, the number of the grooves is equal to the number of the guide posts, one side of the circular ring, which faces the circular ring plate, is fixed with a plurality of frustum-shaped rubber plugs, the number of the L-shaped channels, and the movable ring can be inserted into one end of the L-shaped channels so that the L-shaped channels are closed; the middle unit comprises a controller, a second circular cylindrical part, an inert gas storage unit and a second fan, wherein the second circular cylindrical part is provided with a first through hole and a second through hole, the inert gas storage unit is connected with the first through hole through a first pipeline, the first pipeline is provided with the first fan and a first valve, the second fan is connected with the second through hole through a second pipeline, the second pipeline is provided with a second valve, and the inner side wall of the second circular cylindrical part is also provided with a temperature sensor and a smoke sensor; the first valve, the second valve, the first fan, the second fan, the temperature sensor and the smoke sensor are all connected with the controller; the cable body sequentially comprises an outer sheath, an armor layer, a flame retardant layer, a shielding layer and a polyethylene layer from outside to inside, wherein a copper core wire and a tensile rope are arranged in the polyethylene layer, an inner insulating layer positioned in the polyethylene layer is arranged outside the copper core wire, and a tensile rope cladding positioned in the polyethylene layer is arranged outside the tensile rope;
The number of the guide posts is more than or equal to 8;
The controller controls the second fan, the first valve and the second valve to be closed when the measured value of the temperature sensor is smaller than a first threshold value and the smoke sensor does not sense smoke; when the measured value of the temperature sensor is larger than or equal to a first threshold value and smaller than a second threshold value and the smoke sensor does not sense smoke, the first fan and the first valve are closed, and the second fan and the second valve are opened; and when the measured value of the temperature sensor is larger than or equal to a second threshold value or the smoke sensor senses smoke, the second fan and the second valve are closed, and the first fan and the first valve are opened.
2. The copper core polyethylene insulated flame retardant smart grid cable of claim 1, wherein the inner insulating layer is a polyethylene layer; the flame-retardant layer is a low-smoke halogen-free flame-retardant layer.
3. The copper core polyethylene insulated flame retardant smart grid cable of claim 1, wherein there are two copper core wires and one tensile cord within the polyethylene layer.
4. The copper core polyethylene insulated flame retardant smart grid cable of claim 1, wherein the flexible tube is made of a flame retardant material.
5. The copper core polyethylene insulated flame retardant smart grid cable of claim 1, wherein the guide post and the magnet are cylindrical, and the diameter of the magnet is larger than the diameter of the guide post.
6. The copper core polyethylene insulated flame retardant smart grid cable of claim 1, wherein the intermediate unit further comprises a wireless communication unit, and the controller controls the wireless communication unit to transmit an alarm signal when the measured value of the temperature sensor is greater than or equal to a second threshold value, or when the smoke sensor senses smoke.
7. The copper core polyethylene insulated flame retardant smart grid cable according to claim 1, wherein the protection device has a plurality of, any adjacent two protection devices, one end unit of one protection device and one end unit of the other protection device are fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245950.5A CN109461535B (en) | 2018-10-24 | 2018-10-24 | Copper core polyethylene insulation flame-retardant cable for smart power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245950.5A CN109461535B (en) | 2018-10-24 | 2018-10-24 | Copper core polyethylene insulation flame-retardant cable for smart power grid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109461535A CN109461535A (en) | 2019-03-12 |
| CN109461535B true CN109461535B (en) | 2024-06-07 |
Family
ID=65608308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245950.5A Active CN109461535B (en) | 2018-10-24 | 2018-10-24 | Copper core polyethylene insulation flame-retardant cable for smart power grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109461535B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160481B (en) * | 2019-04-26 | 2021-03-02 | 云南电网有限责任公司电力科学研究院 | Method and device for measuring insulation damage area of cable |
| CN110706857B (en) * | 2019-10-16 | 2020-11-20 | 扬州市红旗电缆制造有限公司 | High ageing resistance does not have steamed low fire-retardant marine frock spare special cable of cigarette |
| CN115188527B (en) * | 2022-07-18 | 2023-09-12 | 江苏圆通电缆有限公司 | Signal transmission high-shielding computer control cable for machine room |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1480090A (en) * | 1974-12-05 | 1977-07-20 | Pirelli General Cable Works | Electric cable |
| CN201465653U (en) * | 2009-08-04 | 2010-05-12 | 北京亨通斯博通讯科技有限公司 | Field service light high-strength digital communication flexible cable |
| CN204966127U (en) * | 2015-07-22 | 2016-01-13 | 四川新浩龙铜业有限公司 | Tensile fire -retardant double -shielded gopher protected cable that blocks water |
| CN205028678U (en) * | 2015-09-28 | 2016-02-10 | 四川新蓉电缆有限责任公司 | Medium voltage fireproof cable |
| CN209249188U (en) * | 2018-10-24 | 2019-08-13 | 江苏润华电缆股份有限公司 | The fire-retardant cable used for intelligent electric network of copper core polyethylene insulation |
-
2018
- 2018-10-24 CN CN201811245950.5A patent/CN109461535B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1480090A (en) * | 1974-12-05 | 1977-07-20 | Pirelli General Cable Works | Electric cable |
| CN201465653U (en) * | 2009-08-04 | 2010-05-12 | 北京亨通斯博通讯科技有限公司 | Field service light high-strength digital communication flexible cable |
| CN204966127U (en) * | 2015-07-22 | 2016-01-13 | 四川新浩龙铜业有限公司 | Tensile fire -retardant double -shielded gopher protected cable that blocks water |
| CN205028678U (en) * | 2015-09-28 | 2016-02-10 | 四川新蓉电缆有限责任公司 | Medium voltage fireproof cable |
| CN209249188U (en) * | 2018-10-24 | 2019-08-13 | 江苏润华电缆股份有限公司 | The fire-retardant cable used for intelligent electric network of copper core polyethylene insulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109461535A (en) | 2019-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109461535B (en) | Copper core polyethylene insulation flame-retardant cable for smart power grid | |
| CN207134161U (en) | A kind of fire safe type environment-friendly cable | |
| CN109411124B (en) | Polyvinyl chloride insulated copper wire armored power cable | |
| CN210535402U (en) | Halogen-free low-smoke flame-retardant fire-resistant special control cable | |
| CN113178282A (en) | Breathing type high-heat-dissipation cable | |
| CN205282152U (en) | Silicon rubber insulated control cable | |
| CN203552790U (en) | Novel communication cable for control cabinet | |
| CN109686483A (en) | The high-intensitive resistance to corrosion-resistant special cable of torsion of coastal Wind turbines | |
| CN201369187Y (en) | Control cable for nuclear power station | |
| CN209249188U (en) | The fire-retardant cable used for intelligent electric network of copper core polyethylene insulation | |
| CN109390093B (en) | Tensile photovoltaic cable capable of adapting to severe environment | |
| CN213815609U (en) | Flexible mineral insulation fireproof cable | |
| CN204130232U (en) | Silicon rubber insulation fireproof control cable | |
| CN203102966U (en) | Efficient shielded-type multi-core control cable | |
| CN111769492A (en) | Easily-replaceable expandable intelligent home decoration wiring embedded pipe and wiring mode | |
| CN220252905U (en) | Cable with stretch-proofing structure | |
| CN201893161U (en) | Soft type low smoke zero halogen cable for ship | |
| CN211208073U (en) | Power line with good insulating property | |
| CN205692602U (en) | A kind of communication base station lightning retardant cable | |
| CN210443312U (en) | High-flexibility mineral substance insulation cable | |
| CN210182124U (en) | Fire-resistant dampproofing cable | |
| CN221261996U (en) | Improved low-smoke halogen-free fireproof cable | |
| CN103903691A (en) | Flexible environment-friendly fireproof cable | |
| CN215730916U (en) | Polyvinyl chloride insulated wire and cable without sheath | |
| CN109102954A (en) | A kind of cable used for wind power generation with automatic fire-extinguishing function |
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 |