CN117423502B - Fireproof variable frequency cable - Google Patents

Fireproof variable frequency cable Download PDF

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Publication number
CN117423502B
CN117423502B CN202311741208.4A CN202311741208A CN117423502B CN 117423502 B CN117423502 B CN 117423502B CN 202311741208 A CN202311741208 A CN 202311741208A CN 117423502 B CN117423502 B CN 117423502B
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CN
China
Prior art keywords
parts
variable frequency
cable
layer
fireproof
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Active
Application number
CN202311741208.4A
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Chinese (zh)
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CN117423502A (en
Inventor
李镇江
商宇
唐国强
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Hunan Valin Wire and Cable Co Ltd
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Hunan Valin Wire and Cable Co Ltd
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Priority to CN202311741208.4A priority Critical patent/CN117423502B/en
Publication of CN117423502A publication Critical patent/CN117423502A/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • 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
    • H01B7/02—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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • 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
    • 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
    • H01B9/021—Features relating to screening tape per se
    • 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
    • H01B9/024—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of braided metal wire
    • 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
    • H01B9/028—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients with screen grounding means, e.g. drain wires

Abstract

The invention discloses a fireproof variable frequency cable, which belongs to the technical field of power cable fireproof, and comprises an outer shielding layer, a fireproof unit, a protective layer and a cable core, wherein the outer side of the cable core is wrapped with the protective layer for protecting an inner cable core, and the fireproof unit is positioned between the outer shielding layer and the protective layer; the fireproof unit is formed by clamping one layer of asbestos mesh cloth by two layers of glass fiber woven meshes; and the sides, far away from the axle center, of the two layers of glass fiber woven meshes are coated with a layer of organic silicon paint. The improved SAR-2 organosilicon paint is matched with the structure, so that the cable can normally work in flame combustion at 650 ℃ and has enough fireproof capability. The problem that the damage of the cable in the combustion environment can lead to the sudden power failure of the variable frequency motor and the variable frequency power supply to stop, and the residual mechanical energy impacts the variable frequency motor and the variable frequency power supply to damage the variable frequency motor is solved.

Description

Fireproof variable frequency cable
Technical Field
The invention belongs to the technical field of power cable fireproof, and particularly relates to a fireproof variable frequency cable.
Background
Along with the large number of applications of variable frequency motors, the variable frequency cables are increasingly required by connecting wires matched with the variable frequency motors, the variable frequency cables are applied to variable frequency speed regulating systems with the operating frequency of 30-300 Hz, and the large variable frequency cables in the market are all improved by power cables and have no other functions except the application to the variable frequency speed regulating systems. When the use environment fires, the cable is easy to damage, the cable damage can lead to the sudden power failure of the variable frequency motor and the variable frequency power supply to stop, and the residual mechanical energy can impact the variable frequency motor and the variable frequency power supply to damage the variable frequency motor, so that a fireproof variable frequency cable is needed in the market to solve the problems.
Disclosure of Invention
The invention aims to provide a fireproof variable frequency cable so as to solve the problem of insufficient fireproof performance of the cable.
The aim of the invention can be achieved by the following technical scheme:
the fireproof variable frequency cable comprises an outer shielding layer, a fireproof unit, a protective layer and a cable core, wherein the outer side of the cable core is wrapped with the protective layer for protecting the inner cable core, and the fireproof unit is positioned between the outer shielding layer and the protective layer; the fireproof unit is formed by clamping one layer of asbestos mesh cloth by two layers of glass fiber woven meshes; and the sides, far away from the axle center, of the two layers of glass fiber woven meshes are coated with a layer of organic silicon paint.
As a further aspect of the invention: the organic silicon paint comprises, by weight, 65-80 parts of organic silicon resin, 10-20 parts of epoxy resin, 15-25 parts of high chlorinated polyethylene, 15-20 parts of nylon resin, 35-55 parts of aluminum powder, 15-35 parts of glass powder, 15-20 parts of ethanol, 2-5 parts of titanium phosphate and 2-3 parts of titanate.
As a further aspect of the invention: the organic silicon resin consists of 65% of methyl phenyl silicone resin and 35% of methyl silicone resin; the epoxy resin is of an epoxy resin 644 type and has a molecular weight of 216.66; the molecular weight of nylon resin is 600-1100.
As a further aspect of the invention: the chlorine content of the high chlorinated polyethylene is more than 65 percent.
As a further aspect of the invention: after the organic silicon paint is coated, the solvent is volatilized at 150 ℃, then solidified at 220 ℃, cooled and then subjected to the next working procedure.
As a further aspect of the invention: the outer shielding layer is woven by nickel-plated copper wires; the protective layer is formed by extruding and packing ceramic silicon rubber and covers the outer side of the cable core.
As a further aspect of the invention: the cable core is obtained by twisting three insulated wire cores and then sequentially coating a glass fiber band and a copper strip shielding layer.
As a further aspect of the invention: the insulated wire core is obtained by sequentially coating a wire core insulating layer and a copper wire inner shielding layer by conductors, and a filling layer is further arranged between the copper wire inner shielding layer and the glass fiber belt.
As a further aspect of the invention: the wire core insulating layer is made of ceramic silicon rubber, and the conductor can be a first conductor or a second conductor according to the size of the section.
The invention has the beneficial effects that:
the invention provides a fireproof variable frequency cable which has a unique fireproof structure, wherein two layers of glass fibers are woven outside a cable sheath and coated with organosilicon paint, and a layer of asbestos mesh cloth is wrapped between the two layers of glass fibers, so that the fireproof capability is further enhanced. The outer shield of the fireproof variable frequency cable adopts nickel-plated copper wires, so that the shielding performance is ensured, and meanwhile, the fireproof variable frequency cable is oxidation-resistant and high-temperature-resistant.
The cable inner sheath of the invention adopts ceramic silicon rubber temperature-resistant material to bear heat energy generated by the external structure when resisting flame combustion. The copper strip is used for enhancing the shielding performance of the outermost wrapping tape of the cable core, a layer of glass fiber tape is arranged below the copper strip, and the glass fiber tape can isolate the inner shielding of the cable from the copper strip and has certain insulating capability. Each wire core is externally provided with a layer of copper wire braided shield, so that the shielding effect is achieved, the shielding effect can be achieved, meanwhile, the occupation of the ground wire core to the space is avoided, and the overall outer diameter is reduced.
The improved SAR-2 organosilicon paint is matched with the structure, so that the cable can normally work in flame combustion at 650 ℃, has enough fireproof capacity, can be used in various 30-300 Hz variable frequency speed regulation working fields, and particularly can be applied to combustion environments. The cable can bear the combustion temperature of general flame, and the normal operation of the cable is ensured when unexpected fire occurs in the working environment, so that the safe running and stopping of the whole variable-frequency speed-regulating operation are ensured, and the equipment damage caused by sudden power failure is prevented.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a fireproof variable frequency cable according to the present invention.
In the figure: 1. an outer shielding layer; 2. a glass fiber woven mesh; 3. asbestos mesh cloth; 4. a protective layer; 5. a copper tape shielding layer; 6. a glass fiber tape; 7. a copper wire inner shielding layer; 8. a wire core insulating layer; 9. a conductor; 10. and (5) a filling layer.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, a fireproof variable frequency cable comprises an outer shielding layer 1, a fireproof unit, a protective layer 4 and a cable core, wherein the outer side of the cable core is wrapped with the protective layer 4 for protecting an inner cable core, and the fireproof unit is positioned between the outer shielding layer 1 and the protective layer 4; the fireproof unit is formed by clamping one layer of asbestos mesh cloth 3 by two layers of glass fiber woven meshes 2; and the two layers of glass fiber woven mesh 2 are coated with a layer of organic silicon paint on the side far away from the axis.
The organic silicon paint comprises, by weight, 65 parts of organic silicon resin, 10 parts of epoxy resin, 15 parts of high chlorinated polyethylene, 15 parts of nylon resin, 35 parts of aluminum powder, 15 parts of glass powder, 15 parts of ethanol, 2 parts of titanium phosphate and 2 parts of titanate (titanate coupling agent KR-238S), and a proper amount of xylene is added according to the required viscosity for dilution. The organic silicon resin consists of 65% of methyl phenyl silicone resin and 35% of methyl silicone resin; the epoxy resin is of an epoxy resin 644 type and has a molecular weight of 216.66; nylon resin (polyamide 650) has a molecular weight of 600-1100. The chlorine content of the high chlorinated polyethylene is more than 65 percent. After the organic silicon paint is coated, the solvent is volatilized at 150 ℃, then solidified at 220 ℃ for 80min, cooled and then subjected to the next working procedure.
The outer shielding layer 1 is woven by nickel-plated copper wires; the protective layer 4 is formed by extruding and wrapping ceramic silicon rubber and covers the outer side of the cable core.
The cable core is obtained by twisting three insulated wire cores and then sequentially coating a glass fiber band 6 and a copper strip shielding layer 5. The insulated wire core is obtained by sequentially coating a wire core insulating layer 8 and a copper wire inner shielding layer 7 by a conductor 9, and a filling layer is further arranged between the copper wire inner shielding layer 7 and the glass fiber band 6. The wire core insulating layer 8 is made of ceramic silicon rubber, and the conductor 9 can be a first type conductor or a second type conductor according to the size of the section.
Example 2
Compared with the embodiment 1, the organic silicon paint has different component proportions, specifically:
the adhesive comprises 65 parts of organic silicon resin, 10 parts of epoxy resin, 20 parts of high chlorinated polyethylene, 15 parts of nylon resin, 40 parts of aluminum powder, 20 parts of glass powder, 15 parts of ethanol, 2 parts of titanium phosphate and 2 parts of titanate (titanate coupling agent KR-238S), and a proper amount of dimethylbenzene is added according to the required viscosity for dilution. The organic silicon resin consists of 65% of methyl phenyl silicone resin and 35% of methyl silicone resin; the epoxy resin is of an epoxy resin 644 type and has a molecular weight of 216.66; nylon resin (polyamide 650) has a molecular weight of 600-1100. The chlorine content of the high chlorinated polyethylene is more than 65 percent. After the organic silicon paint is coated, the solvent is volatilized at 150 ℃, then solidified at 220 ℃ for 80min, cooled and then subjected to the next working procedure.
Example 3
Compared with the embodiment 1, the organic silicon paint has different component proportions, specifically:
the adhesive comprises 75 parts of organic silicon resin, 18 parts of epoxy resin, 22 parts of high chlorinated polyethylene, 18 parts of nylon resin, 45 parts of aluminum powder, 30 parts of glass powder, 18 parts of ethanol, 5 parts of titanium phosphate and 3 parts of titanate (titanate coupling agent KR-238S), and a proper amount of dimethylbenzene is added according to the required viscosity for dilution. The organic silicon resin consists of 65% of methyl phenyl silicone resin and 35% of methyl silicone resin; the epoxy resin is of an epoxy resin 644 type and has a molecular weight of 216.66; nylon resin (polyamide 650) has a molecular weight of 600-1100. The chlorine content of the high chlorinated polyethylene is more than 65 percent. After the organic silicon paint is coated, the solvent is volatilized at 150 ℃, then solidified at 220 ℃ for 80min, cooled and then subjected to the next working procedure.
Example 4
Compared with the embodiment 1, the organic silicon paint has different component proportions, specifically:
the adhesive comprises 80 parts of organic silicon resin, 20 parts of epoxy resin, 25 parts of high chlorinated polyethylene, 20 parts of nylon resin, 55 parts of aluminum powder, 35 parts of glass powder, 20 parts of ethanol, 5 parts of titanium phosphate and 3 parts of titanate (titanate coupling agent KR-238S), and a proper amount of dimethylbenzene is added according to the required viscosity for dilution. The organic silicon resin consists of 65% of methyl phenyl silicone resin and 35% of methyl silicone resin; the epoxy resin is of an epoxy resin 644 type and has a molecular weight of 216.66; nylon resin (polyamide 650) has a molecular weight of 600-1100. The chlorine content of the high chlorinated polyethylene is more than 65 percent. After the organic silicon paint is coated, the solvent is volatilized at 150 ℃, then solidified at 220 ℃ for 80min, cooled and then subjected to the next working procedure.
The samples prepared in examples 1-4 were tested and the test results are shown below:
cable experiment
1. Horizontal combustion experiment: stage B, burn for 3 hours at 750 ℃ with 300V voltage level without breakdown.
2. Water spray experiment: the W class is burned for 15 minutes by applying 300V voltage at 650 ℃ and then burned by spraying water for 15 minutes without breakdown.
3. Mechanical impact shock combustion experiment: the Y-stage was not broken down by applying a voltage of 300V at 750℃and by vibrating for 15 minutes every 30 seconds with mechanical impact.
The above three tests meet the requirements of the English standard BS 6387 or BS 8491.
Paint experiment
4. Bending resistance: 1mm, with reference to GB/T1731-2020, on a mandrel with a radius of curvature of 1mm, at least 2 trials were performed, no moire, cracking and flaking were observed.
5. Paint adhesion: meets the first-level standard of GB/T1720-2020.
6. Salt water resistance: the paint surface is free from cracking, bubbling and falling off when tested according to GB/T9274-88 by using saturated sodium chloride solution.
Comparative example 1
In this comparative example, the amount of epoxy resin was adjusted to 5 parts as compared with example 2, and the other raw materials and the production process were the same as in example 2. In the salt water resistance test, cracking, bubbling, falling off and the like occur, and the salt water resistance test cannot be passed.
Comparative example 2
In this comparative example, the amount of nylon resin was adjusted to 10 parts as compared with example 2, and the remaining raw materials and the production process were the same as in example 2. Paint adhesion test grade is three-level, and mechanical impact shock combustion test cannot pass the lowest X level.
Comparative example 3
In this comparative example, compared with example 2, 25 parts of epoxy resin and 10 parts of nylon resin were adjusted, and the other raw materials and the preparation process were the same as in example 2. The paint adhesion test reaches the second-level standard, and the mechanical impact vibration combustion test: x-stage, the flame was burned at 650 ℃ with a mechanical shock vibration of 15 minutes every 30 seconds without breakdown.
Comparative example 4
In this comparative example, no titanate was added, and the other raw materials and the preparation process were the same as in example 2. The paint adhesion test reaches the second level standard.
Comparative example 5
In this comparative example, 60 parts of aluminum powder, 40 parts of glass frit, and the other raw materials and the preparation process were the same as in example 2. The bending resistance was 2mm.
Comparative example 6
In this comparative example, 60 parts of silicone resin and 10 parts of highly chlorinated polyethylene were adjusted as compared with example 2, and the remaining raw materials and the preparation process were the same as in example 2.
Horizontal combustion experiment: class a, burn for 3 hours at 650 ℃ with 300V applied voltage level without breakdown.
Mechanical impact shock combustion experiment: x-stage, the flame was burned at 650 ℃ with a mechanical shock vibration of 15 minutes every 30 seconds without breakdown. Both the horizontal combustion test and the mechanical shock vibration combustion test were one grade lower than in example 2.
Comparative example 7
In this comparative example, 40 parts of glass frit was added and the bending resistance was 2mm, as compared with example 2.
Comparative example 8
In this comparative example, 60 parts of aluminum powder was added and the bending resistance was 2mm as compared with example 2.
Comparative example 9
In this comparative example, compared with example 2, the addition of more than 60 parts of aluminum powder resulted in uneven paint surface, and failed the mechanical impact shock combustion test.
Comparative example 10
In this comparative example, as compared with example 2, the addition of less than 35 parts of aluminum powder, the paint adhesion test achieved the secondary standard and failed the salt water resistance test.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "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.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The fireproof variable frequency cable is characterized by comprising an outer shielding layer (1), a fireproof unit, a protective layer (4) and a cable core, wherein the outer side of the cable core is wrapped with the protective layer (4), and the fireproof unit is positioned between the outer shielding layer (1) and the protective layer (4); the fireproof unit is formed by clamping one layer of asbestos mesh cloth (3) by two layers of glass fiber woven meshes (2); both sides of the two layers of glass fiber woven mesh (2) far away from the axle center are coated with a layer of organic silicon paint;
the organic silicon paint comprises, by weight, 65-80 parts of organic silicon resin, 10-20 parts of epoxy resin, 15-25 parts of high chlorinated polyethylene, 15-20 parts of nylon resin, 35-55 parts of aluminum powder, 15-35 parts of glass powder, 15-20 parts of ethanol, 2-5 parts of titanium phosphate and 2-3 parts of titanate.
2. A fire resistant variable frequency cable according to claim 1 wherein: the organic silicon resin consists of 65% of methyl phenyl silicone resin and 35% of methyl silicone resin; the epoxy resin is of an epoxy resin 644 type and has a molecular weight of 216.66; the molecular weight of nylon resin is 600-1100.
3. A fire resistant variable frequency cable according to claim 1 wherein: the chlorine content of the high chlorinated polyethylene is more than 65 percent.
4. A fire resistant variable frequency cable according to claim 1 wherein: the organic silicon paint is coated, then volatilized at 150 ℃, solidified at 220 ℃, cooled and then enters the next working procedure.
5. A fire resistant variable frequency cable according to claim 1 wherein: the outer shielding layer (1) is woven by nickel-plated copper wires; the protective layer (4) is formed by extruding and packing ceramic silicon rubber and covers the outer side of the cable core.
6. The fire resistant power conversion cable of claim 5 wherein: the cable core is obtained by twisting three insulated wire cores and then sequentially coating a glass fiber band (6) and a copper band shielding layer (5).
7. The fire resistant power conversion cable of claim 6, wherein: the insulation wire core is obtained by sequentially coating a wire core insulation layer (8) and a copper wire inner shielding layer (7) by a conductor (9), and a filling layer is further arranged between the copper wire inner shielding layer (7) and the glass fiber band (6).
8. The fire resistant power conversion cable of claim 7 wherein: the wire core insulating layer (8) is made of ceramic silicon rubber.
CN202311741208.4A 2023-12-18 2023-12-18 Fireproof variable frequency cable Active CN117423502B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB685005A (en) * 1950-10-12 1952-12-31 British Insulated Callenders Improvements in electric cables
JP2002160333A (en) * 2000-11-24 2002-06-04 Hiraoka & Co Ltd Flame retarding light-resisting polyolefin resin sheet and method of manufacturing the same
CN1371517A (en) * 1998-12-24 2002-09-25 皮雷利·卡维系统有限公司 Process for producing self-extinguishing cables with low-level production of fumes and flame-retardant compositions used therein
CN208507222U (en) * 2018-05-29 2019-02-15 深圳琦富瑞电子有限公司 A kind of low smoke and zero halogen high temperature-resistant cable
CN111201579A (en) * 2017-07-14 2020-05-26 杜邦聚合物公司 Low smoke flame retardant cable
CN213006928U (en) * 2020-07-06 2021-04-20 泰州市共展电气有限公司 Fireproof and waterproof integrated silicone resin glass fiber sleeve
CN214541658U (en) * 2020-11-24 2021-10-29 苏州道旺电子科技有限公司 High-temperature-resistant cable
CN214671968U (en) * 2021-05-12 2021-11-09 湖南华菱线缆股份有限公司 Fire-resistant waterproof type medium-voltage crosslinked polyethylene insulated environment-friendly power cable
CN216212496U (en) * 2021-11-08 2022-04-05 苏州良沃电子科技有限公司 Fireproof cable connecting line

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB685005A (en) * 1950-10-12 1952-12-31 British Insulated Callenders Improvements in electric cables
CN1371517A (en) * 1998-12-24 2002-09-25 皮雷利·卡维系统有限公司 Process for producing self-extinguishing cables with low-level production of fumes and flame-retardant compositions used therein
JP2002160333A (en) * 2000-11-24 2002-06-04 Hiraoka & Co Ltd Flame retarding light-resisting polyolefin resin sheet and method of manufacturing the same
CN111201579A (en) * 2017-07-14 2020-05-26 杜邦聚合物公司 Low smoke flame retardant cable
CN208507222U (en) * 2018-05-29 2019-02-15 深圳琦富瑞电子有限公司 A kind of low smoke and zero halogen high temperature-resistant cable
CN213006928U (en) * 2020-07-06 2021-04-20 泰州市共展电气有限公司 Fireproof and waterproof integrated silicone resin glass fiber sleeve
CN214541658U (en) * 2020-11-24 2021-10-29 苏州道旺电子科技有限公司 High-temperature-resistant cable
CN214671968U (en) * 2021-05-12 2021-11-09 湖南华菱线缆股份有限公司 Fire-resistant waterproof type medium-voltage crosslinked polyethylene insulated environment-friendly power cable
CN216212496U (en) * 2021-11-08 2022-04-05 苏州良沃电子科技有限公司 Fireproof cable connecting line

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
耐高温隔热涂料的研制;赵继华;涂料工业;20021101(第11期);全文 *

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