CN110691437A - Corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable and preparation method thereof - Google Patents
Corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable and preparation method thereof Download PDFInfo
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- CN110691437A CN110691437A CN201911069594.0A CN201911069594A CN110691437A CN 110691437 A CN110691437 A CN 110691437A CN 201911069594 A CN201911069594 A CN 201911069594A CN 110691437 A CN110691437 A CN 110691437A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 46
- 238000005260 corrosion Methods 0.000 title claims abstract description 36
- 239000004020 conductor Substances 0.000 title claims abstract description 34
- 230000007797 corrosion Effects 0.000 title claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 22
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 19
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 229910000838 Al alloy Inorganic materials 0.000 claims description 14
- 239000011889 copper foil Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 229920001684 low density polyethylene Polymers 0.000 claims description 7
- 239000004702 low-density polyethylene Substances 0.000 claims description 7
- 229920001179 medium density polyethylene Polymers 0.000 claims description 7
- 239000004701 medium-density polyethylene Substances 0.000 claims description 7
- 238000007750 plasma spraying Methods 0.000 claims description 7
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000009941 weaving Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 3
- UTICYDQJEHVLJZ-UHFFFAOYSA-N copper manganese nickel Chemical compound [Mn].[Ni].[Cu] UTICYDQJEHVLJZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 238000005253 cladding Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- 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 invention discloses a corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable and a preparation method thereof. The heating cable has the advantages that through the structure optimization design, the heat efficiency is greatly improved, the corrosion resistance and the water resistance are good, the energy consumption is reduced, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of heating cables, in particular to a corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable and a preparation method thereof.
Background
The heating cable is a special heating appliance, converts electric energy into heat energy through heating wires in the cable, and is widely applied to electric floor heating systems and the like. At present, various heating cables are various and generally made of non-metallic materials, so that after the cables are used for a long time, the insulating sheaths of the cables are easy to age gradually, and the cables are slow in heat dissipation, low in heat efficiency and short in service life.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable, which has the advantages of greatly improving the thermal efficiency, having good corrosion resistance and water-blocking performance, reducing the energy consumption and prolonging the service life through the structural optimization design. Meanwhile, a preparation method of the heating cable is also provided.
The invention solves the technical problems through the following technical scheme.
The corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable comprises a heating conductor and an XLPE insulating layer, an anti-corrosion functional coating, a PET semiconductor winding band layer, a metal shielding layer, a water blocking layer, an insulating fireproof winding band layer, an aluminum alloy sheath, a chloroprene rubber inner sheath, a CPE heat-resistant layer and a chloroprene rubber outer sheath, wherein the XLPE insulating layer, the anti-corrosion functional coating, the PET semiconductor winding band layer, the metal shielding layer, the water blocking layer, the insulating fireproof winding band layer, the aluminum alloy sheath, the chloroprene rubber inner sheath, the CPE heat-resistant layer and the chloroprene rubber outer sheath are sequentially.
Preferably, the heating conductor is formed by twisting copper-nickel-manganese alloy wires.
Preferably, the XLPE insulating layer is coated with an anticorrosion functional coating by atmospheric plasma spraying.
Preferably, the thickness of the anti-corrosion functional coating is 0.01 to 1 micrometer.
Preferably, the metal shielding layer is formed by wrapping a copper-plastic composite tape, and the copper-plastic composite tape is composed of a copper foil tape and an EEA reinforcing filling layer which is thermally integrated with the inner side surface of the copper foil tape.
Preferably, the metal shielding layer is formed by weaving polyester fiber copper foil wires and tin-plated copper monofilaments in a reverse spiral winding manner.
Preferably, the metal shielding layer is formed by spirally winding and weaving double-layer tin-plated copper monofilaments.
Preferably, the thickness ratio of the MDPE water-blocking inner layer to the LDPE water-blocking outer layer is from 1:10 to 1: 12.
Preferably, the insulating fireproof wrapping tape layer is of a double-layer bonding integrated structure of an XLPE resin outer layer and a mica tape inner layer.
The preparation method of the corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable comprises the following specific steps:
the method comprises the following steps: obtaining a heating conductor through a stranding process;
step two: extruding an XLPE insulating layer on the heating conductor by an extrusion process;
step three: forming an anti-corrosion functional coating on the XLPE insulating layer by an atmospheric plasma spraying process;
step four: winding a PET semiconductor winding belting layer on the anti-corrosion functional coating through a winding process;
step five: winding a metal shielding layer on the PET semiconductor winding tape layer through a winding process;
step six: extruding a water-resistant layer on the metal shielding layer by an extrusion process;
step seven: sequentially lapping an insulating fireproof wrapping tape layer on the waterproof layer through a winding process;
step eight: coating an aluminum alloy sheath on the insulating fireproof wrapping belt layer through an extrusion process;
step nine: and extruding a chloroprene rubber inner sheath, a CPE heat-resistant layer and a chloroprene rubber outer sheath on the aluminum alloy sheath by an extrusion process to prepare the heating cable.
The invention has the beneficial effects that:
1. the cross-sectional structure through optimizing the aluminum alloy sheath is gear-shaped, makes its ageing life obtain very big improvement, and the surface area increases more than 2-4 times with circular surface area than, and the efficiency that generates heat promotes at double, makes the cable generate heat the back thermal efficiency distribute in the air fast, reduces the energy consumption, and life is several times than ordinary heating cable extension in addition, and life can reach more than 30 years.
2. The cable has three layers of bonding bodies of a chloroprene rubber inner sheath, a CPE heat-resistant layer and a chloroprene rubber outer sheath which are high in toughness, strength and wear resistance, and the CPE heat-resistant layer is added between the chloroprene rubber inner sheath and the chloroprene rubber outer sheath, so that the improvement of the bonding performance is facilitated, and the heat resistance is increased.
3. Through the atmosphere plasma spraying technology, an efficient anticorrosion functional coating is formed on the XLPE insulating layer, for example, a covered anticorrosion coating is formed by hexamethyldisiloxane and nitrogen under the irradiation of plasma, the corrosion of corrosive gas and liquid to the cable can be effectively prevented, the acid and alkali corrosion resistance of the cable is improved, the weather resistance is enhanced, and the service life is prolonged.
4. Adopt double-deck polyethylene water-blocking layer, for MDPE blocks water the double-deck coextrusion molding structure of inlayer and LDPE outer layer, the optimal design inlayer thickness proportion, if the cable meets in the long-term soaking under water or under the obvious higher operating mode condition of humidity, the water-blocking layer can effectually prevent that moisture from invading inside, the insulating electrical properties of protection cable, increase of service life.
5. The metal shielding layer can effectively shield electromagnetic radiation and eliminate harm to human bodies, and the copper-plastic composite belt has better mechanical strength and shielding effect, large heat transfer capacity and good heat conduction effect; the polyester fiber copper foil wire and the tin-plated copper monofilament are of reverse spiral winding structures, so that the electromagnetic shielding and anti-aging fabric is good in flexibility and deflection resistance and has good electromagnetic shielding and anti-aging effects; double-layer tin-plated copper monofilaments are spirally wound to form electromagnetic fields with opposite directions and same strength to eliminate electromagnetic pollution, so that a good electromagnetic shielding effect is achieved.
6. The insulating fireproof wrapping tape layer is of a double-layer bonding integrated structure of an XLPE resin outer layer and a mica tape inner layer, provides excellent fireproof insulating performance and has good bending property.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic cross-sectional structural view of an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a water blocking layer according to an embodiment of the present disclosure;
fig. 3 is a schematic cross-sectional structure view of the copper-plastic composite tape according to the embodiment of the present application.
Reference numerals: the heat-insulating and heat-insulating composite material comprises a 1-heating conductor, a 2-XLPE insulating layer, a 3-anticorrosion functional coating, a 4-PET semiconductor winding tape layer, a 5-metal shielding layer, a 6-water-resistant layer, a 61-MDPE water-resistant inner layer, a 62-LDPE water-resistant outer layer, a 7-insulating fireproof winding tape layer, an 8-aluminum alloy sheath, a 9-chloroprene rubber inner sheath, a 10-CPE heat-resistant layer, an 11-chloroprene rubber outer sheath, a 12-copper foil tape and a 13-EEA reinforcing filling layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable according to the embodiment of the invention includes a heating conductor 1, and an XLPE insulating layer 2, an anti-corrosion functional coating 3, a PET semiconductor winding tape layer 4, a metal shielding layer 5, a water-blocking layer 6, an insulating fireproof winding tape layer 7, an aluminum alloy sheath 8, a neoprene inner sheath 9, a CPE heat-resistant layer 10, and a neoprene outer sheath 11 which are sequentially coated outside the heating conductor 1. The heating conductor 1 is formed by twisting copper-nickel-manganese alloy wires. And an anti-corrosion functional coating 3 is formed on the XLPE insulating layer 2 through atmospheric plasma spraying, and the thickness of the anti-corrosion functional coating 3 is preferably 0.01-1 micron. The insulating fireproof wrapping tape layer 7 is of a double-layer bonding integrated structure of an XLPE resin outer layer and a mica tape inner layer. The cross section profile of the aluminum alloy sheath 8 is gear-shaped.
In a specific embodiment, as shown in fig. 3, the metal shielding layer 5 is formed by wrapping a copper-plastic composite tape, for example, the copper-plastic composite tape is composed of a copper foil tape 12 and an EEA reinforcing filler layer 13 thermally integrated with an inner side surface of the copper foil tape 12, for example, the copper foil tape 12 has a thickness of 0.05mm, and the EEA reinforcing filler layer 13 has a thickness of 0.1 mm. In another embodiment, the metal shielding layer 5 is formed by weaving polyester fiber copper foil filaments and tin-plated copper monofilaments in reverse spiral winding. In yet another embodiment, the metallic shielding layer 5 is formed by a double layer tinned copper monofilament spiral wound braid.
As shown in fig. 2, the water-blocking layer 6 is formed by co-extruding an inner MDPE water-blocking layer 61 on the inner side and an outer LDPE water-blocking layer 62 on the outer side, and further, the thickness ratio of the inner MDPE water-blocking layer 61 to the outer LDPE water-blocking layer 62 is 1:10 to 1: 12.
The preparation method of the corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable comprises the following specific steps:
the method comprises the following steps: obtaining a heating conductor through a stranding process;
step two: extruding an XLPE insulating layer on the heating conductor by an extrusion process;
step three: forming an anti-corrosion functional coating on the XLPE insulating layer by an atmospheric plasma spraying process;
step four: winding a PET semiconductor winding belting layer on the anti-corrosion functional coating through a winding process;
step five: winding a metal shielding layer on the PET semiconductor winding tape layer through a winding process;
step six: extruding a water-resistant layer on the metal shielding layer by an extrusion process;
step seven: sequentially lapping an insulating fireproof wrapping tape layer on the waterproof layer through a winding process;
step eight: coating an aluminum alloy sheath on the insulating fireproof wrapping belt layer through an extrusion process;
step nine: and extruding a chloroprene rubber inner sheath, a CPE heat-resistant layer and a chloroprene rubber outer sheath on the aluminum alloy sheath by an extrusion process to prepare the heating cable.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. Corrosion-resistant type aluminium sheath single-conductor heating cable that blocks water, characterized by: including heating conductor (1) and cladding in proper order heating conductor (1) outside XLPE insulating layer (2), anticorrosion function coating (3), PET semiconductor are around band layer (4), metallic shield layer (5), water blocking layer (6), insulating fire prevention around band layer (7), aluminum alloy sheath (8), chloroprene rubber inner sheath (9), CPE heat-resistant layer (10) and chloroprene rubber oversheath (11), water blocking layer (6) are blocked water outer layer (62) coextrusion molding by the LDPE in inboard MDPE inner layer (61) and the outside, the cross section appearance profile of aluminum alloy sheath (8) is gear type.
2. The corrosion-resistant water-blocking type aluminum-sheathed single-conductor heating cable according to claim 1, which is characterized in that: the heating conductor (1) is formed by twisting copper-nickel-manganese alloy wires.
3. The corrosion-resistant water-blocking type aluminum-sheathed single-conductor heating cable according to claim 1, which is characterized in that: and an anti-corrosion functional coating (3) is formed on the XLPE insulating layer (2) by atmospheric plasma spraying.
4. The corrosion-resistant water-blocking type aluminum-sheathed single-conductor heating cable according to claim 1, which is characterized in that: the thickness of the anticorrosion function coating (3) is 0.01-1 micron.
5. The corrosion-resistant water-blocking type aluminum-sheathed single-conductor heating cable according to claim 1, which is characterized in that: the metal shielding layer (5) is formed by wrapping a copper-plastic composite tape, and the copper-plastic composite tape comprises a copper foil tape (12) and an EEA reinforcing filling layer (13) which is thermally integrated with the inner side surface of the copper foil tape (12).
6. The corrosion-resistant water-blocking type aluminum-sheathed single-conductor heating cable according to claim 1, which is characterized in that: the metal shielding layer (5) is formed by spirally winding and weaving polyester fiber copper foil filaments and tin-plated copper filaments in opposite directions.
7. The corrosion-resistant water-blocking type aluminum-sheathed single-conductor heating cable according to claim 1, which is characterized in that: the metal shielding layer (5) is formed by spirally winding and weaving double-layer tin-plated copper monofilaments.
8. The corrosion-resistant water-blocking type aluminum-sheathed single-conductor heating cable according to claim 1, which is characterized in that: the thickness ratio of the MDPE water-blocking inner layer (61) to the LDPE water-blocking outer layer (62) is from 1:10 to 1: 12.
9. The corrosion-resistant water-blocking type aluminum-sheathed single-conductor heating cable according to claim 1, which is characterized in that: the insulating fireproof wrapping tape layer (7) is of a double-layer bonding integrated structure of an XLPE resin outer layer and a mica tape inner layer.
10. The preparation method of the corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable is characterized by comprising the following steps of: the method comprises the following specific steps:
the method comprises the following steps: obtaining a heating conductor through a stranding process;
step two: extruding an XLPE insulating layer on the heating conductor by an extrusion process;
step three: forming an anti-corrosion functional coating on the XLPE insulating layer by an atmospheric plasma spraying process;
step four: winding a PET semiconductor winding belting layer on the anti-corrosion functional coating through a winding process;
step five: winding a metal shielding layer on the PET semiconductor winding tape layer through a winding process;
step six: extruding a water-resistant layer on the metal shielding layer by an extrusion process;
step seven: sequentially lapping an insulating fireproof wrapping tape layer on the waterproof layer through a winding process;
step eight: coating an aluminum alloy sheath on the insulating fireproof wrapping belt layer through an extrusion process;
step nine: and extruding a chloroprene rubber inner sheath, a CPE heat-resistant layer and a chloroprene rubber outer sheath on the aluminum alloy sheath by an extrusion process to prepare the heating cable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069594.0A CN110691437B (en) | 2019-11-05 | 2019-11-05 | Corrosion-resistant water-resistant aluminum sheath single-conductor heating cable and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911069594.0A CN110691437B (en) | 2019-11-05 | 2019-11-05 | Corrosion-resistant water-resistant aluminum sheath single-conductor heating cable and preparation method thereof |
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| CN110691437A true CN110691437A (en) | 2020-01-14 |
| CN110691437B CN110691437B (en) | 2024-08-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112512145A (en) * | 2020-12-08 | 2021-03-16 | 芜湖市恒鑫电缆有限责任公司 | 24V self-temperature-limiting flame-retardant temperature-control heating cable special for automobile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204596523U (en) * | 2015-04-29 | 2015-08-26 | 张璐华 | The corrosion-resistant moistureproof power cable of a kind of insulation |
| CN210868206U (en) * | 2019-11-05 | 2020-06-26 | 浙江中大元通特种电缆有限公司 | Corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable |
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2019
- 2019-11-05 CN CN201911069594.0A patent/CN110691437B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204596523U (en) * | 2015-04-29 | 2015-08-26 | 张璐华 | The corrosion-resistant moistureproof power cable of a kind of insulation |
| CN210868206U (en) * | 2019-11-05 | 2020-06-26 | 浙江中大元通特种电缆有限公司 | Corrosion-resistant water-blocking type aluminum sheath single-conductor heating cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112512145A (en) * | 2020-12-08 | 2021-03-16 | 芜湖市恒鑫电缆有限责任公司 | 24V self-temperature-limiting flame-retardant temperature-control heating cable special for automobile |
| CN112512145B (en) * | 2020-12-08 | 2022-09-16 | 山东鲁城电缆有限公司 | 24-volt self-temperature-limiting flame-retardant temperature-control heating cable special for automobile |
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