CN211654407U - High-flexibility fireproof monitoring cable - Google Patents
High-flexibility fireproof monitoring cable Download PDFInfo
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- CN211654407U CN211654407U CN201922159997.6U CN201922159997U CN211654407U CN 211654407 U CN211654407 U CN 211654407U CN 201922159997 U CN201922159997 U CN 201922159997U CN 211654407 U CN211654407 U CN 211654407U
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- 238000012544 monitoring process Methods 0.000 title claims description 11
- 239000010410 layer Substances 0.000 claims abstract description 102
- 238000005253 cladding Methods 0.000 claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010445 mica Substances 0.000 claims abstract description 15
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 15
- 229920000098 polyolefin Polymers 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000000779 smoke Substances 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 238000011049 filling Methods 0.000 claims abstract description 10
- 239000003365 glass fiber Substances 0.000 claims abstract description 10
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 9
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 239000011247 coating layer Substances 0.000 claims abstract description 6
- 239000004945 silicone rubber Substances 0.000 claims abstract description 5
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims abstract description 3
- 230000004888 barrier function Effects 0.000 claims description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 8
- 150000002367 halogens Chemical class 0.000 claims description 7
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 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 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 239000004718 silane crosslinked polyethylene Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- JUWGUJSXVOBPHP-UHFFFAOYSA-B titanium(4+);tetraphosphate Chemical compound [Ti+4].[Ti+4].[Ti+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O JUWGUJSXVOBPHP-UHFFFAOYSA-B 0.000 description 3
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- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- 239000003574 free electron Substances 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- 238000007146 photocatalysis Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- 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
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a high flexibility fire prevention control cable, including sinle silk skeleton and three sinle silks, sinle silk skeleton comprises three hollow oval bodys, and three oval bodys constitute crossing region and surround the three sinle silk of crossing region and arrange the district, are equipped with the solid circular body that is common to cut with three oval bodys in the crossing region, and this solid circular body and three oval bodys respectively fixed connection, and three sinle silks are located respectively in three sinle silk arrangement district, and the outer cladding of sinle silk has the insulating layer, and the outer cladding of insulating layer has the aluminium silk shielding layer; the wire core framework is wound with a double-layer mica tape which is tangent to the three oval tubes, a filling layer is arranged between the double-layer mica tape and the three oval tubes, and the double-layer mica tape is sequentially coated or wound with an inner liner, a copper wire shielding layer, a ceramic high-polymer composite fire-resistant silicone rubber layer, an oxygen isolation layer, an aluminum alloy armor layer, a double-layer glass fiber tape, an artificial water skin protective layer, a low-smoke halogen-free polyolefin layer and a nano self-cleaning coating layer.
Description
Technical Field
The utility model relates to an electric power cable technical field, especially a high flexible fire prevention control cable.
Background
Traditional control cable single structure, the function is simple, along with control cable service environment's complicacy day by day, has provided higher requirement to performances such as high temperature resistant, corrosion-resistant, environmental protection, nontoxic, mechanical strength of control cable, also requires simultaneously that the control cable still has good flexibility under the condition that has enough mechanical strength in order to adapt to complicated installation environment concurrently. Therefore, it is desirable to provide a monitoring cable having good flame retardancy, high temperature resistance, corrosion resistance, environmental protection, non-toxicity, good mechanical strength, and good flexibility.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides a high flexible fire prevention control cable.
The utility model adopts the technical proposal that:
a high-flexibility fireproof monitoring cable comprises a cable core framework and three cable cores, wherein the cable core framework consists of three hollow oval pipe bodies, the three oval pipe bodies are distributed in a triangular shape, the oval end parts of the three oval pipe bodies are intersected, the three oval pipe bodies form an intersection area and three cable core arrangement areas surrounding the intersection area, a solid round pipe body which is tangent to the three oval pipe bodies is arranged in the intersection area, the solid round pipe body and the three oval pipe bodies are respectively and fixedly connected, the three cable cores are respectively arranged in the three cable core arrangement areas, insulating layers are coated outside the cable cores, and aluminum wire shielding layers are coated outside the insulating layers; the outer winding of sinle silk skeleton has with three oval body common tangent double-deck mica tape, be equipped with the filling layer between double-deck mica tape and the three oval bodies, the outer cladding of double-deck mica tape has the inner liner, the outer cladding of inner liner has the copper wire shielding layer, the outer cladding of copper wire shielding layer has the compound fire-resistant silastic-layer of ceramic polymer, the outer cladding of the compound fire-resistant silastic-layer of ceramic polymer has the oxygen layer that separates, it has the aluminum alloy armor layer to separate the outer cladding of oxygen layer, the outer winding of aluminum alloy armor has double-deck glass fiber tape, the outer cladding of double-deck glass fiber tape has someone to make the water skin protective layer, the outer cladding of artificial water skin protective layer has low smoke and zero halogen polyolefin layer, the outer.
Preferably, the insulating layer is made of silane crosslinked polyethylene.
Preferably, the wire core framework and the solid round pipe body are made of polyurethane elastomer materials.
Preferably, the filling layer is a water-blocking yarn.
Preferably, the lining layer is made of PE.
Preferably, the oxygen barrier layer is a flame retardant polyolefin oxygen barrier layer.
Preferably, the aluminum alloy used for the aluminum alloy armor layer is a 5000 series aluminum alloy strip subjected to annealing.
The utility model has the advantages that: the cable core framework can effectively protect the cable core and avoid the cable core from being damaged by extrusion, the cable core framework and the solid round pipe body are made of polyurethane elastomers, the performance of the cable core framework is between that of plastic and rubber, the cable core framework is oil-resistant, wear-resistant, low-temperature-resistant, ageing-resistant and high in hardness, the cable core framework and the solid round pipe body are also good in elasticity under the condition of fully protecting the cable core, certain buffering can be provided when the cable is subjected to external force by using the soft polyurethane or polyurethane elastomer, the ceramic high-polymer composite fire-resistant silicon rubber is formed into a hard ceramic object after being burnt, and the cable has strong tensile strength and fire-resistant and high-temperature-resistant characteristics, so that the cable still has enough mechanical strength for continuous normal use before replacement even; carry out complementally through aluminium silk shielding layer, filling layer, double-deck mica tape, inner liner, copper wire shielding layer, separate oxygen layer, aluminum alloy armor, double-deck glass fiber tape, artificial water skin protective layer, low smoke and zero halogen polyolefin layer, make the cable have fabulous fire resistance, refractiveness, high temperature resistance, waterproof nature, corrosion resistance and electromagnetic shield nature, under the circumstances that guarantees that the cable has enough mechanical strength, improved the flexibility of cable.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wire core in an embodiment of the present invention;
reference numerals: 10. the composite self-cleaning cable comprises an oval pipe body, 11, an intersection region, 12, a wire core arrangement region, 13, a solid circular pipe body, 14, a wire core, 15, an insulating layer, 16, an aluminum wire shielding layer, 17, a filling layer, 18, a conductor, 19, a fiber rope, 20, a double-layer mica tape, 30, an inner liner layer, 40, a copper wire shielding layer, 50, a ceramic high-polymer composite fire-resistant silicon rubber layer, 60, an oxygen isolation layer, 70, an aluminum alloy armor layer, 80, a double-layer glass fiber tape, 90, an artificial water skin protective layer, 100, a low-smoke zero-halogen polyolefin layer, 110 and a nano self-cleaning coating layer.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1, a high-flexibility fireproof monitoring cable comprises a cable core framework and three cable cores 14, wherein the cable core framework is composed of three hollow oval pipe bodies 10, the three oval pipe bodies 10 are distributed in a delta shape, oval end parts of the three oval pipe bodies are intersected, the three oval pipe bodies 10 form an intersection area 11 and three cable core arrangement areas 12 surrounding the intersection area 11, a solid round pipe body 13 which is tangent to the three oval pipe bodies 10 is arranged in the intersection area 11, the solid round pipe body 13 is fixedly connected with the three oval pipe bodies 10 respectively, the three cable cores 14 are arranged in the three cable core arrangement areas 12 respectively, an insulating layer 15 covers the cable cores 14, and an aluminum wire shielding layer 16 covers the insulating layer 15; the outer winding of sinle silk skeleton has with three oval bodies 10 common tangential double-deck mica tape 20, be equipped with filling layer 17 between double-deck mica tape 20 and three oval bodies 10, the outer cladding of double-deck mica tape 20 has inner liner 30, the outer cladding of inner liner 30 has copper wire shielding layer 40, the outer cladding of copper wire shielding layer 40 has compound fire-resistant silicone rubber layer of ceramic polymer 50, the outer cladding of compound fire-resistant silicone rubber layer of ceramic polymer has oxygen layer 60, the outer cladding of oxygen layer 60 has aluminum alloy armor 70, the outer winding of aluminum alloy armor 70 has double-deck glass fiber tape 80, the outer cladding of double-deck glass fiber tape 80 has artificial water skin protective layer 90, the outer cladding of artificial water skin protective layer 90 has low smoke and zero halogen polyolefin layer 100, the outer cladding of low smoke and zero halogen polyolefin layer 100 has self-cleaning coating layer 110 of nanometer.
Sinle silk skeleton texture is stable, intensity is high, has fabulous compressive capacity, and three oval body 10 forms regular triangle structure, and when arbitrary single oval body 10 pressurized, two oval body 10 all can provide good support and pressure and decompose in addition. Moreover, even if the end of the oval tube 10 is pressed to a certain degree, the oval tube 10 becomes flatter, and a larger space is provided for the core 14, so that the core 14 is prevented from being squeezed.
The double-layer mica tape 20 has good high temperature resistance and fire resistance, and can effectively protect the inner wire core 14.
The ceramic high-molecular composite fire-resistant silicon rubber is formed into a hard ceramic object after being burnt, and has strong tensile strength and fire-resistant and high-temperature-resistant characteristics, so that the cable still has enough mechanical strength for continuous normal use before replacement even after other outer protective layers are completely damaged.
The double-layer glass fiber tape 80 has good insulation property, strong heat resistance, good corrosion resistance and high mechanical strength, and can further improve the insulation protection, heat resistance, corrosion resistance and mechanical strength of the cable.
The artificial water skin protection layer 90 is made of ageing-resistant leather, has good corrosion resistance and flexibility, ensures the bending capability of the cable in actual application, also has waterproofness, and increases guarantee for the waterproofness of the cable.
The low smoke and halogen-free polyolefin layer 100 serves as an outer sheath layer, has excellent flame retardancy, does not generate toxic halogen smoke even if burned at high temperature, and does not pollute the environment.
The nano self-cleaning coating layer 110 comprises photocatalyst TiO2 and air catalyst titanium phosphate, TiO2 can absorb light with certain wavelength to generate free electrons and holes, so that pollutants adsorbed on the surface of the membrane are oxidized, reduced and decomposed to remove and kill surface microbes, and the purpose of self-cleaning is achieved. Research has shown that harmful pollutant molecules such as organic matters, amide and the like in the air can be removed. The titanium phosphate can only utilize water and air to play a self-cleaning effect under the condition of no light. The nano self-cleaning coating has the following functions: (1) the low-smoke halogen-free polyolefin layer 100 with the super-hydrophilic function can completely and uniformly spread water, soak pollutants and finally take away the pollutants attached to the low-smoke halogen-free polyolefin layer 100 through the gravity of the water; (2) the photocatalyst has the function of decomposing organic matters and not generating any function on inorganic matters under the irradiation of ultraviolet rays; (3) the air-conditioning agent has no photocatalysis function, and can exert self-cleaning effect by only utilizing water and air under the action of air catalyst titanium phosphate even without light. The nanometer self-cleaning coating layer 110 can enable the cable to have waterproof and dustproof functions, and can decompose organic matters to prevent the cable from mildewing.
The aluminum wire shielding layer 16 is firstly used for shielding each wire core 14 outside the wire core 14, then the copper wire shielding layer 40 is used for shielding the wire cores 14 in the wire core framework uniformly outside the lining layer 30, and the shielding effect of the maximization is achieved through double-layer shielding.
As shown in fig. 2, the wire core 14 may be formed by twisting a plurality of conductors 18 insulated from each other as needed, and a fiber rope 19 is provided between the conductors 18, so that tensile strength of the wire core 14 may be improved. Each conductor 18 can be formed by inlaying and twisting a plurality of corrugated monofilaments, the conductor 18 is made of rare earth high-iron aluminum alloy, replaces the traditional copper material, has the characteristics of creep resistance, high flexibility, strong extensibility and low rebound, under the same current-carrying capacity, the weight of the required rare earth high-iron aluminum alloy is about half of that of copper, and the price of the rare earth high-iron aluminum alloy is about one third of that of copper, so that the weight of the cable is lighter and the cost of the cable is lower.
In one embodiment, the insulating layer 15 is made of silane crosslinked polyethylene. Compared with the traditional polyvinyl chloride, the silane crosslinked polyethylene has the characteristics of low smoke and zero halogen, and has better fire resistance and longer service life.
In one embodiment, the core frame and the solid circular tube 13 are made of polyurethane elastomer. The polyurethane elastomer has the performance between that of plastic and rubber, and has the advantages of oil resistance, wear resistance, low temperature resistance, aging resistance, high hardness and elasticity. The polyurethane elastomer can provide certain buffering when the cable is subjected to external force, and provides good compression protection for the wire core 14, so that the cable is better in flexibility.
In one embodiment, the filling layer 17 is a water-blocking yarn. The filling of the water blocking yarn can make the cable have good water blocking performance.
In one embodiment, the lining layer 30 is made of PE. When the lining layer 30 is extruded, corresponding grooves are formed in the periphery of the lining layer to synchronously embed the copper wire shielding layer 40, so that the shielding function is enhanced, the structural strength and the stability of the copper wire shielding layer 40 can be improved, the production links are reduced, and the production cost is reduced.
In one embodiment, the oxygen barrier layer 60 is a flame retardant polyolefin oxygen barrier layer 60. The flame retardant polyolefin oxygen barrier layer 60 can further provide flame retardancy to the cable, and has good oxygen barrier effect, preventing oxidation aging of the inner layer.
In one embodiment, the aluminum alloy used for the aluminum alloy armor layer 70 is an annealed 5000 series aluminum alloy strip. The layers of the aluminum alloy armor are interlocked and buckled with each other, so that the cable is insulated until the cable is better protected, the damage resistance of the cable is improved, and the fire resistance level is high.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (7)
1. The utility model provides a high flexible fire prevention control cable, its characterized in that, includes sinle silk skeleton and three sinle silk (14), sinle silk skeleton comprises three hollow oval bodys (10), three oval body (10) are article font and distribute and oval-shaped tip is crossing, three oval body (10) constitute crossing district (11) and encircle three sinle silk arrangement district (12) of crossing district (11), be equipped with in crossing district (11) with three oval bodys (10) common tangent solid circular body (13), and this solid circular body (13) and three oval bodys (10) fixed connection respectively, three sinle silk (14) are located respectively in three sinle silk arrangement district (12), the outer cladding of sinle silk (14) has insulating layer (15), the outer cladding of insulating layer (15) has aluminium silk shielding layer (16); the outer winding of sinle silk skeleton has with three oval body (10) common cut double-deck mica tape (20), be equipped with between double-deck mica tape (20) and three oval body (10) filling layer (17), the outer cladding of double-deck mica tape (20) has inner liner (30), the outer cladding of inner liner (30) has copper wire shielding layer (40), the outer cladding of copper wire shielding layer (40) has compound fire-resistant silicone rubber layer of ceramic polymer (50), the outer cladding of compound fire-resistant silicone rubber layer of ceramic polymer (50) has oxygen layer (60), the outer cladding of oxygen layer (60) has aluminum alloy armor layer (70), the outer winding of aluminum alloy armor layer (70) has double-deck glass fiber tape (80), the outer cladding of double-deck glass fiber tape (80) has artificial water skin protective layer (90), artificial water skin protective layer (90) has low smoke and zero halogen polyolefin layer (100), the low-smoke halogen-free polyolefin layer (100) is coated with a nano self-cleaning coating layer (110).
2. Highly flexible fireproof monitoring cable according to claim 1, wherein the insulating layer (15) is of silane crosslinked polyethylene.
3. The highly flexible fireproof monitoring cable according to claim 2, wherein the core frame and the solid circular tube (13) are both made of polyurethane elastomer.
4. A highly flexible fireproof monitoring cable according to claim 3, wherein the filling layer (17) is a water blocking yarn.
5. Highly flexible fireproof monitoring cable according to claim 4, wherein the inner liner (30) is of PE material.
6. A highly flexible fire protection monitoring cable according to claim 5, characterized in that the oxygen barrier layer (60) is a flame retardant polyolefin oxygen barrier layer (60).
7. A highly flexible fire protection monitoring cable according to claim 6, wherein the aluminium alloy used for the aluminium alloy armour layer (70) is an annealed 5000 series aluminium alloy tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922159997.6U CN211654407U (en) | 2019-12-05 | 2019-12-05 | High-flexibility fireproof monitoring cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922159997.6U CN211654407U (en) | 2019-12-05 | 2019-12-05 | High-flexibility fireproof monitoring cable |
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| Publication Number | Publication Date |
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| CN211654407U true CN211654407U (en) | 2020-10-09 |
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| CN201922159997.6U Expired - Fee Related CN211654407U (en) | 2019-12-05 | 2019-12-05 | High-flexibility fireproof monitoring cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496362A (en) * | 2021-12-29 | 2022-05-13 | 杭州惠尔线缆有限公司 | Security protection cable |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496362A (en) * | 2021-12-29 | 2022-05-13 | 杭州惠尔线缆有限公司 | Security protection cable |
| CN114496362B (en) * | 2021-12-29 | 2023-09-19 | 杭州惠尔线缆有限公司 | Security cable |
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Granted publication date: 20201009 |