CN112700921A - Insulating explosion-proof fireproof cable and explosion-proof fireproof method thereof - Google Patents
Insulating explosion-proof fireproof cable and explosion-proof fireproof method thereof Download PDFInfo
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- CN112700921A CN112700921A CN202011515138.7A CN202011515138A CN112700921A CN 112700921 A CN112700921 A CN 112700921A CN 202011515138 A CN202011515138 A CN 202011515138A CN 112700921 A CN112700921 A CN 112700921A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
- H01B3/082—Wires with glass or glass wool
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0216—Two layers
-
- 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
- H01B7/0291—Disposition of insulation comprising two or more layers of insulation having different electrical properties
-
- 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
- H01B7/29—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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Details Of Indoor Wiring (AREA)
Abstract
The invention discloses an insulated explosion-proof and fireproof cable and an explosion-proof and fireproof method thereof, and relates to the technical field of cables. The invention solves the problems that in the prior art, in the use process of the common cable, some cables only provide some power support, the fireproof effect cannot be achieved, the service life is short, and meanwhile, due to poor explosion-proof performance, electric sparks generated by circuit faults are easy to cause explosion in flammable gas, and potential safety hazards exist.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an insulated explosion-proof and fireproof cable and an explosion-proof and fireproof method thereof.
Background
With the continuous development of society, science and technology also become more and more developed, and can see the cable everywhere on the road, and the cable has been the indispensable part in people's life, and the cable is used for providing people's basic power of daily life, and the cable is an electric energy or signal transmission device, usually comprises several or several groups of wire.
Among the prior art, at present common cable is in the use, and some cables only provide some power and support, can not reach the effect of fire prevention, cause the injury to constructor very easily when contacting the cable to the life of cable is very short, simultaneously, because the explosion-proof performance is relatively poor, when using under the environment of inflammable and explosive gas and circuit trouble appears, thereby the great easy explosion that causes of electric spark energy of production, has certain potential safety hazard.
Disclosure of Invention
The invention provides an insulated explosion-proof and fireproof cable and an explosion-proof and fireproof method thereof, which have the advantages of prolonging the service life and reducing potential safety hazards and solve the problems that in the prior art, in the use process of the conventional common cable, some cables only provide some power supports, the fireproof effect cannot be achieved, the service life is short, and meanwhile, due to poor explosion-proof performance, electric sparks generated by circuit faults are easy to cause explosion in flammable gas and potential safety hazards exist.
In order to realize the purposes of prolonging the service life and reducing the potential safety hazard, the invention provides the following technical scheme: the utility model provides an insulating explosion-proof fireproof cable, includes wire and outer protective layer, the surface of wire is provided with the inner protective layer, the inner protective layer is installed in the outer protective layer, the inner wall fixedly connected with fire retardant pipe of outer protective layer, the inside of fire retardant pipe is provided with the fire retardant, the outer protective layer includes total shielding layer, fire-retardant enhancement layer, low capacitance insulating layer and outer protective sheath from interior to exterior in proper order, the inside on total shielding layer is provided with the rock wool, the outside of protective layer including the rock wool installation, the inner protective layer includes XLPE layer, ceramic silastic-rubber layer and branch shielding layer from interior to exterior in proper order, the inside of inner protective layer is provided with glass fiber, glass fiber installs the outside at the wire, the central point of outer protective layer puts the department and is provided with steel strand wires, the one end fixedly connected with of outer.
In a preferred embodiment of the present invention, the flame retardant is magnesium oxide powder.
As a preferred technical scheme of the invention, the total shielding layer is a copper mesh woven shielding layer, and the sub-shielding layers are aluminum foil shielding layers.
As a preferable technical scheme of the invention, the flame-retardant reinforced layer is polytetrafluoroethylene.
As a preferable technical solution of the present invention, the low-capacitance insulating layer is high-density polyethylene.
As a preferred technical scheme of the invention, the number of the flame retardant pipes is four, and the four flame retardant pipes are distributed in an annular array by taking the circle center of the steel strand as the array center.
The utility model provides an explosion-proof fire prevention method of insulating explosion-proof fireproof cable, when the conflagration breaing out, outer protective sheath in the outer protective layer, the low capacitance insulating layer, fire-retardant enhancement layer and total shielding layer play high temperature resistant and protection's effect, rock wool protection inner protective layer, fire-retardant pipe on the inner wall of total shielding layer is used for placing the fire retardant, when flame invades to inner protective layer department, fire-retardant pipe can split and release the fire retardant, prevent the invasion of flame to inner protective layer, XLPE layer in the inner protective layer, ceramization silicon rubber layer and branch shielding layer play the blast proof effect, the residue is hard ceramization casing after the burning in the ceramization silicon rubber layer, the crust does not melt and does not drip in the fire environment, still prevent that the wire from producing the electric spark when fire-retardant.
Compared with the prior art, the invention provides an insulated explosion-proof fireproof cable, which has the following beneficial effects:
1. the insulating explosion-proof fireproof cable is characterized in that the flame retardant tube, the rock wool, the low-capacitance insulating layer and the XLPE layer are arranged, when the cable is used, high-density polyethylene in the low-capacitance insulating layer has good heat resistance and good chemical stability, the XLPE in the XLPE layer is crosslinked polyethylene and has excellent anti-aging characteristic, heavy current is allowed to pass through the cable in a high-temperature environment, the flame retardant in the flame retardant tube retards flame in all directions of the inner protective layer, the rock wool is used for protecting the inner protective layer and preventing flame from invading, the effects of prolonging the service life and reducing potential safety hazards are achieved, the problem that in the prior art, some cables only provide some power supports and cannot achieve the fireproof effect in the use process of common cables at present, the service life is short, meanwhile, due to poor explosion-proof performance, electric sparks generated by circuit faults are easy to cause explosion in inflammable gas is solved, the potential safety hazard exists.
2. According to the insulating explosion-proof fireproof cable, the ceramic silicon rubber layer and the glass fiber are arranged, when the insulating explosion-proof fireproof cable is used, the residue of the ceramic silicon rubber in the ceramic silicon rubber layer after combustion is a hard ceramic shell, the hard shell is not melted and drips in a fire environment, the electric spark of a wire is prevented while the flame is retarded, the glass fiber is high-temperature resistant, the electric insulation property is good, the ceramic silicon rubber and the glass fiber are high-temperature resistant, the electric spark of the wire in a high-temperature environment is prevented, and the effect of reducing potential safety hazards is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a right sectional view of the present invention;
FIG. 3 is an enlarged view of the structure of the inner protective layer according to the present invention.
In the figure: 1. a wire; 2. an outer protective layer; 201. a total shielding layer; 202. a flame retardant reinforcement layer; 203. a low capacitance insulating layer; 204. an outer protective sheath; 3. an inner protective layer; 301. an XLPE layer; 302. a silicon rubber layer is ceramic; 303. dividing a shielding layer; 4. a flame retardant tube; 5. a flame retardant; 6. rock wool; 7. glass fibers; 8. steel strand wires; 9. and (4) a joint.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-3, the invention discloses an insulated explosion-proof fireproof cable, which comprises a lead 1 and an outer protective layer 2, wherein the surface of the lead 1 is provided with an inner protective layer 3, the inner protective layer 3 is arranged in the outer protective layer 2, the inner wall of the outer protective layer 2 is fixedly connected with a flame retardant tube 4, the interior of the flame retardant tube 4 is provided with a flame retardant 5, the outer protective layer 2 sequentially comprises a total shielding layer 201, a flame retardant reinforcing layer 202, a low-capacitance insulating layer 203 and an outer protective sleeve 204 from inside to outside, rock wool 6 is arranged in the total shielding layer 201, the rock wool 6 is arranged outside the inner protective layer 3, the inner protective layer 3 sequentially comprises an XLPE layer 301, a silicon rubber ceramic layer 302 and a sub-shielding layer 303 from inside to outside, the interior of the inner protective layer 3 is provided with glass fiber 7, the glass fiber 7 is arranged outside the lead 1, the center of the, one end of the outer protective layer 2 is fixedly connected with a joint 9.
Specifically, the flame retardant 5 is magnesium oxide powder.
In this embodiment, when the outer protective layer 2 is broken, the flame retardant tube 4 is broken to release the flame retardant 5 to prevent the flame from intruding.
Specifically, the total shielding layer 201 is a copper mesh woven shielding layer, and the sub-shielding layer 303 is an aluminum foil shielding layer.
In this embodiment, the total shielding layer 201 and the partial shielding layer 303 are respectively the innermost layer of the outer protective layer 2 and the outermost layer of the inner protective layer 3, and prevent the flame from intruding.
Specifically, the flame-retardant reinforcing layer 202 is polytetrafluoroethylene.
In this embodiment, the ptfe is located in the flame retardant reinforcement layer 202, providing a strong flame barrier.
Specifically, the low-capacitance insulating layer 203 is high-density polyethylene.
In this embodiment, high density polyethylene is located in the low-capacitance insulating layer 203, and the high density polyethylene has good heat resistance.
Specifically, the number of the flame retardant pipes 4 is four, and the four flame retardant pipes 4 are distributed in an annular array by taking the circle center of the steel strand 8 as the array center.
In the present embodiment, four flame retardant tubes 4 retard flame in each direction.
When the fireproof cable is used, the glass fiber 7 wraps the wire 1, the wire 1 and the glass fiber 7 are wrapped by the inner protective layers 3, the number of the inner protective layers 3 is four, the rock wool 6 wraps the outer protective layer 3, the inner protective layer 3 and the rock wool 6 are wrapped by the outer protective layer 2, when a fire disaster happens, the outer protective sleeve 204, the low-capacitance insulating layer 203, the flame-retardant enhancement layer 202 and the total shielding layer 201 in the outer protective layer 2 have high-temperature-resistant and protective effects, the rock wool 6 protects the inner protective layer 3, the flame-retardant pipe on the inner wall of the total shielding layer 201 is used for placing the flame retardant 5, when a flame invades to the inner protective layer 3, the flame-retardant pipe can crack and release the flame retardant 5 to prevent the invasion of the flame to the inner protective layer 3, the XLPE layer 301, the ceramic silicon rubber layer 302 and the partial shielding layer 303 in the inner protective layer 3 play roles of protecting the wire 1 and also prevent explosion, the residue of the ceramic silicon, the hard shell is not melted and does not drop in a fire environment, flame retardance is realized, electric sparks are prevented from being generated on the lead 1, and potential safety hazards are greatly reduced.
In conclusion, the insulating explosion-proof fireproof cable is provided with the flame retardant tube 4, the rock wool 6, the ceramic silicon rubber layer 302 and the glass fiber 7, so that the problems that in the prior art, some cables only provide some power supports in the use process of the existing common cable, the fireproof effect cannot be achieved, the service life is short, and meanwhile, due to poor explosion-proof performance, electric sparks generated by circuit faults are easy to cause explosion in flammable gas, and potential safety hazards exist are solved.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an insulating explosion-proof fireproof cable, includes wire (1) and outer protective layer (2), its characterized in that: the surface of the wire (1) is provided with an inner protection layer (3), the inner protection layer (3) is installed in an outer protection layer (2), the inner wall of the outer protection layer (2) is fixedly connected with a flame retardant pipe (4), a flame retardant (5) is arranged inside the flame retardant pipe (4), the outer protection layer (2) sequentially comprises a total shielding layer (201), a flame retardant enhancement layer (202), a low-capacitance insulation layer (203) and an outer protection sleeve (204) from inside to outside, rock wool (6) is arranged inside the total shielding layer (201), the rock wool (6) is installed outside the inner protection layer (3), the inner protection layer (3) sequentially comprises an XLPE layer (301), a ceramic silicon rubber layer (302) and a sub-shielding layer (303) from inside to outside, glass fiber (7) is arranged inside the inner protection layer (3), and the glass fiber (7) is installed outside the wire (1), the steel strand wires (8) are arranged at the center of the outer protection layer (2), and one end of the outer protection layer (2) is fixedly connected with a joint (9).
2. The insulated explosion-proof fireproof cable according to claim 1, wherein: the flame retardant (5) is magnesium oxide powder.
3. The insulated explosion-proof fireproof cable according to claim 1, wherein: the total shielding layer (201) is a copper mesh woven shielding layer, and the sub-shielding layers (303) are aluminum foil shielding layers.
4. The insulated explosion-proof fireproof cable according to claim 1, wherein: the flame-retardant reinforcing layer (202) is made of polytetrafluoroethylene.
5. The insulated explosion-proof fireproof cable according to claim 1, wherein: the low-capacitance insulating layer (203) is high-density polyethylene.
6. The insulated explosion-proof fireproof cable according to claim 1, wherein: the number of the flame retardant pipes (4) is four, and the four flame retardant pipes (4) are distributed in an annular array by taking the circle center of the steel strand (8) as the array center.
7. A method of explosion and fire protection of an insulated explosion and fire protected cable according to any one of claims 1 to 6, wherein: when a fire disaster happens, the outer protective sleeve (204), the low-capacitance insulating layer (203), the flame-retardant enhancement layer (202) and the total shielding layer (201) in the outer protective layer (2) have the effects of high temperature resistance and protection, the rock wool (6) protects the inner protective layer (3), the flame-retardant pipe on the inner wall of the total shielding layer (201) is used for placing the flame retardant (5), when flame invades to the inner protection layer (3), the flame retardant pipe can crack to release the flame retardant (5) to prevent the flame from invading the inner protection layer (3), the XLPE layer (301), the ceramic silicon rubber layer (302) and the sub-shielding layer (303) in the inner protection layer (3) play an explosion-proof role, the residue of the ceramic silicon rubber in the ceramic silicon rubber layer (302) after combustion is a hard ceramic shell, the hard shell is not melted and does not drip in a fire environment, and the flame retardant pipe can prevent the wire (1) from generating electric sparks at the same time of flame retardance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011515138.7A CN112700921A (en) | 2020-12-21 | 2020-12-21 | Insulating explosion-proof fireproof cable and explosion-proof fireproof method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011515138.7A CN112700921A (en) | 2020-12-21 | 2020-12-21 | Insulating explosion-proof fireproof cable and explosion-proof fireproof method thereof |
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| CN112700921A true CN112700921A (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011515138.7A Pending CN112700921A (en) | 2020-12-21 | 2020-12-21 | Insulating explosion-proof fireproof cable and explosion-proof fireproof method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972031A (en) * | 2021-10-21 | 2022-01-25 | 沈兴线缆集团有限公司 | Explosion-proof cable suitable for high-voltage environment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065718A (en) * | 2013-01-28 | 2013-04-24 | 深圳市沃尔核材股份有限公司 | Fire-resistant power cable |
| CN207426358U (en) * | 2017-07-22 | 2018-05-29 | 深圳市永泰兴电子有限公司 | A kind of flame retardant type USB cable |
| CN108447610A (en) * | 2018-03-26 | 2018-08-24 | 江苏通鼎光电科技有限公司 | A kind of fire-retardant fireproof cable and preparation method thereof |
| CN207966564U (en) * | 2018-04-13 | 2018-10-12 | 四川省万阳电缆有限公司 | A kind of engineering presses fire proof power cable in |
| CN109215870A (en) * | 2018-09-07 | 2019-01-15 | 河南讯达电缆有限公司 | Middle pressure fireproof cable |
| CN209843342U (en) * | 2019-05-20 | 2019-12-24 | 欧之联电缆有限公司 | High-insulation fireproof cable |
| CN210692135U (en) * | 2019-11-05 | 2020-06-05 | 浙江中大元通特种电缆有限公司 | Flexible ceramic silicon rubber protection single-core fireproof cable |
| CN210865685U (en) * | 2019-12-31 | 2020-06-26 | 浙江启超电缆股份有限公司 | Environment-friendly flame-retardant medium-voltage cable |
| CN211957175U (en) * | 2020-05-19 | 2020-11-17 | 天津正标津达线缆集团有限公司 | Explosion-proof fireproof cable |
-
2020
- 2020-12-21 CN CN202011515138.7A patent/CN112700921A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065718A (en) * | 2013-01-28 | 2013-04-24 | 深圳市沃尔核材股份有限公司 | Fire-resistant power cable |
| CN207426358U (en) * | 2017-07-22 | 2018-05-29 | 深圳市永泰兴电子有限公司 | A kind of flame retardant type USB cable |
| CN108447610A (en) * | 2018-03-26 | 2018-08-24 | 江苏通鼎光电科技有限公司 | A kind of fire-retardant fireproof cable and preparation method thereof |
| CN207966564U (en) * | 2018-04-13 | 2018-10-12 | 四川省万阳电缆有限公司 | A kind of engineering presses fire proof power cable in |
| CN109215870A (en) * | 2018-09-07 | 2019-01-15 | 河南讯达电缆有限公司 | Middle pressure fireproof cable |
| CN209843342U (en) * | 2019-05-20 | 2019-12-24 | 欧之联电缆有限公司 | High-insulation fireproof cable |
| CN210692135U (en) * | 2019-11-05 | 2020-06-05 | 浙江中大元通特种电缆有限公司 | Flexible ceramic silicon rubber protection single-core fireproof cable |
| CN210865685U (en) * | 2019-12-31 | 2020-06-26 | 浙江启超电缆股份有限公司 | Environment-friendly flame-retardant medium-voltage cable |
| CN211957175U (en) * | 2020-05-19 | 2020-11-17 | 天津正标津达线缆集团有限公司 | Explosion-proof fireproof cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972031A (en) * | 2021-10-21 | 2022-01-25 | 沈兴线缆集团有限公司 | Explosion-proof cable suitable for high-voltage environment |
| CN113972031B (en) * | 2021-10-21 | 2022-07-12 | 沈兴线缆集团有限公司 | Explosion-proof cable suitable for high-voltage environment |
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Application publication date: 20210423 |
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