CN112331396A - High-flame-retardant intercity rail transit cable - Google Patents

High-flame-retardant intercity rail transit cable Download PDF

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Publication number
CN112331396A
CN112331396A CN202011145614.0A CN202011145614A CN112331396A CN 112331396 A CN112331396 A CN 112331396A CN 202011145614 A CN202011145614 A CN 202011145614A CN 112331396 A CN112331396 A CN 112331396A
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China
Prior art keywords
layer
flame
retardant
cable
rail transit
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Pending
Application number
CN202011145614.0A
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Chinese (zh)
Inventor
沈小平
周江
沈林林
刘修红
张洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tongding Interconnection Information Co Ltd
Jiangsu Tongding Optic Electronic Stock Co Ltd
Original Assignee
Tongding Interconnection Information Co Ltd
Jiangsu Tongding Optic Electronic Stock Co Ltd
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Application filed by Tongding Interconnection Information Co Ltd, Jiangsu Tongding Optic Electronic Stock Co Ltd filed Critical Tongding Interconnection Information Co Ltd
Priority to CN202011145614.0A priority Critical patent/CN112331396A/en
Publication of CN112331396A publication Critical patent/CN112331396A/en
Pending legal-status Critical Current

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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
    • H01B7/295—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
    • H01B7/0009—Details relating to the conductive cores
    • 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
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875—Multi-layer sheaths
    • 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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion
    • 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
    • H01B7/2813—Protection against damage caused by electrical, chemical or water tree deterioration
    • 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
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • 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
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • 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 provides a high-flame-retardant intercity rail transit cable, which comprises a cable core and a sheath structure coated outside the cable core, wherein the cable core comprises at least one lead group; the wire group comprises four insulated single wires which are twisted with each other and have different colors, a first flame-retardant layer, a copper-plastic composite belt and a second flame-retardant layer are sequentially coated outside the insulated single wires from inside to outside, and a drain wire winding layer formed by twisting a plurality of drain wires is arranged between the copper-plastic composite belt and the first flame-retardant layer; the sheath structure comprises a fourth flame-retardant layer, an oxygen-isolating layer, a metal shielding layer, a carbon composite refractory material layer, a steel belt armor layer and an outer sheath which are sequentially coated from inside to outside. The cable provided by the invention has the advantages of reasonable structural design, excellent thermal stability, moisture resistance, mechanical and physical properties, high flame retardant property and high temperature resistance, can bear larger radiation dose, and has long service life and good service performance.

Description

High-flame-retardant intercity rail transit cable
Technical Field
The invention belongs to the technical field of cable industry, and particularly relates to a high-flame-retardant inter-city rail transit cable.
Background
With the construction of various urban rail projects, the cable is required to have not only general characteristics, but also the performances of cracking resistance, no halogen, low smoke, flame retardance, long service life and specific environmental resistance. The intercity rail transit cable is generally laid on the edge of a rail along the rail as a central nervous system of the urban rail, the cable works in such occasions for a long time, most of cable insulation and sheaths cannot bear strong radiation requirements, and in addition, when a fire disaster occurs after the cable is laid, the cable with poor flame retardant property is self-extinguished for a long time after being burnt, great difficulty is brought to disaster relief work, and more damage and loss are caused.
Disclosure of Invention
In view of the above, the present invention provides a highly flame-retardant inter-city rail transit cable, which is designed to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a high-flame-retardance intercity rail transit cable comprises a cable core and a sheath structure coated outside the cable core, wherein the cable core comprises at least one lead group;
the wire group comprises four insulated single wires which are twisted with each other and have different colors, a first flame-retardant layer, a copper-plastic composite belt and a second flame-retardant layer are sequentially coated outside the insulated single wires from inside to outside, and a drain wire winding layer formed by twisting a plurality of drain wires is arranged between the copper-plastic composite belt and the first flame-retardant layer;
the insulated single wire comprises a conductor, and an anti-corrosion coating, an inner insulating layer, a hot melt adhesive layer, a woven layer, a third flame retardant layer and an outer insulating layer are sequentially coated outside the conductor from inside to outside;
the sheath structure comprises a fourth flame-retardant layer, an oxygen-isolating layer, a metal shielding layer, a carbon composite refractory material layer, a steel belt armor layer and an outer sheath which are sequentially coated from inside to outside.
Furthermore, the conductor is a single solid copper conductor.
Further, the inner insulating layer is a polyether-ether-ketone insulating layer.
Furthermore, the braided layer is formed by weaving copper wires or tinned copper wires.
Further, the first flame-retardant layer adopts an F46 fluoroplastic belt layer.
Furthermore, the second flame-retardant layer and the third flame-retardant layer adopt ceramic silicon rubber composite belt layers.
Further, the fourth flame-retardant layer adopts a glass fiber tape layer.
Further, the metal shielding layer is made of a copper alloy seamless tube.
Further, the drainage wire is made of a tinned annealed copper wire.
Compared with the prior art, the invention has the following advantages:
the cable provided by the invention has the advantages of reasonable structural design, excellent thermal stability, moisture resistance, mechanical and physical properties, high flame retardant property and high temperature resistance, can bear larger radiation dose, and has long service life and good service performance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the inventive embodiment with a support body.
Description of reference numerals:
1. insulating the single wire; 2. a conductor; 3. an anti-corrosion coating; 4. an inner insulating layer; 5. a hot melt adhesive layer; 6. weaving layer; 7. a third flame retardant layer; 8. an outer insulating layer; 9. a wire group; 10. a first flame retardant layer; 11. a drain wire winding layer; 12. a copper-plastic composite belt layer; 13. a second flame retardant layer; 14. a fourth flame retardant layer; 15. an oxygen barrier layer; 16. a metal shielding layer; 17. a carbon composite refractory layer; 18. a steel tape armor layer; 19. an outer sheath; 20-a scaffold; 21-bearing piece.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A high flame-retardant inter-city rail transit cable comprises a cable core and a sheath structure coated outside the cable core, wherein the cable core comprises at least one lead group 9;
wire group includes four different colours's insulating single line 1 of transposition each other the outside from interior to exterior of insulating single line has first fire-retardant layer 10, copper to mould compound area 12 and the fire-retardant layer 13 of second of cladding in proper order the copper mould compound area with be equipped with between the first fire-retardant layer and become by a plurality of earial drainage wire transposition earial drainage winding layer 11, the earial drainage wire preferably adopts tin-plated annealed copper wire, through the one deck earial drainage wire of each insulating single line outside cladding at each wire group, the effectual earial drainage ability that improves the cable, the security is higher, even take place the calamity and cause local damage, can not lead to earial drainage function loss yet.
The insulated single wire comprises a conductor 2, and the conductor preferably adopts a single solid copper conductor, so that the insulated single wire has better mechanical strength and good heat dissipation. The outer part of the conductor is sequentially coated with an anticorrosive coating 3, an inner insulating layer 4, a hot melt adhesive layer 5, a braided layer 6, a third flame-retardant layer 7 and an outer insulating layer 8 from inside to outside;
the sheath structure comprises a fourth flame-retardant layer 14, an oxygen-isolating layer 15, a metal shielding layer 16, a flame-retardant layer 17, a steel strip armor layer 18 and an outer sheath 19 which are sequentially coated from inside to outside. The flame retardant coating is made of carbon composite refractory materials, and the flame retardant coating made of the carbon composite refractory materials has the advantages of light weight, high melting point, no combustion even at high temperature and good flame-retardant and fireproof effects.
Usually, the inner insulating layer is a polyether-ether-ketone insulating layer, so that the cable has excellent high-temperature resistance, irradiation resistance and corrosion resistance, and is also good in flame retardant property and chemical stability. The outer insulating layer is made of cross-linked polyethylene insulating material, and a wear-resistant coating is coated on the outer side of the cross-linked polyethylene insulating material.
The outer insulating layer material is one peroxide cross-linking process to change the linear molecular structure of polyethylene molecule into three-dimensional network structure, i.e. thermoplastic polyethylene is converted into thermosetting cross-linked polyethylene, so as to raise its heat resistance and mechanical performance, reduce its shrinkage, avoid melting after being heated and maintain excellent electric performance.
The wear-resistant coating is coated outside the outer insulating layer of the cross-linked polyethylene material, so that the cable has excellent wear resistance and fatigue resistance.
In an optional embodiment, the braided layer is formed by braiding copper wires or tinned copper wires with the diameter of 0.15-0.2 mm, and the braiding density is 90% -95%. The braided shielding layer enables the cable to be light and soft, and the shielding performance of the cable is enhanced.
The first flame-retardant layer adopts an F46 fluoroplastic belt layer, and has excellent weather resistance, ultraviolet resistance, high temperature resistance and low temperature resistance.
The second flame-retardant layer and the third flame-retardant layer both adopt ceramic silicon rubber composite belt layers, so that the cable has very good fireproof, fire-resistant, flame-retardant, low-smoke and non-toxic properties, meanwhile, the residue after combustion is a ceramic hard shell, and the hard shell is not melted and dropped in a fire environment, so that the smooth circuit under the fire condition is ensured, a firm protection effect is achieved, and the flame-retardant and fireproof properties of the cable are improved.
The fourth flame-retardant layer adopts a glass fiber belt layer, is formed by processing high-temperature-resistant high-strength glass fibers through a special process, and has the performance characteristics of high temperature resistance, heat preservation and insulation, fire prevention, flame retardance, corrosion resistance, aging resistance, weather resistance and high strength.
The metal shielding layer is made of copper alloy seamless pipes, the copper alloy seamless pipes as inorganic matters have good fireproof performance and shielding effect, are not interfered by other outside in the signal transmission process, and can effectively ensure the running safety of trains. In addition, the copper alloy seamless tube shielding layer is firm and not easy to deform, and the cable has high tensile strength and bending performance.
The oxygen-isolating layer and the outer sheath are made of ceramic polyolefin refractory materials, and can rapidly generate a complete ceramic-shaped shell at a temperature of above 650 ℃ or under a flame condition, the generated ceramic-shaped shell is not cracked or dropped, and the oxygen-isolating and heat-insulating ceramic shell has excellent electrical isolation performance and excellent oxygen-isolating and heat-insulating effects.
When the cable is manufactured, a high-temperature anti-corrosion coating is coated on the surface of a copper conductor, then a polyether-ether-ketone inner insulating layer is extruded outside the anti-corrosion coating, and a hot melt adhesive layer is extruded outside the inner insulating layer. And then weaving a woven layer with the weaving density not less than 90% outside the hot melt adhesive layer by adopting a weaving process, then wrapping a ceramic silicon rubber composite belt outside the woven layer by adopting a wrapping process to prepare a third flame-retardant layer, wrapping a crosslinked polyethylene outer insulating layer outside the third flame-retardant layer, and then coating a wear-resistant coating outside the outer insulating layer by adopting a coating process to finish the manufacture of the insulated single wire.
And then twisting the 4 produced insulated single wires with different colors by using a high-speed star twister, then wrapping a layer of F46 fluoroplastic tape outside the 4 twisted insulated single wires with different colors by adopting a wrapping process to prepare a first flame-retardant layer, and then wrapping the prepared drainage wire, the copper-plastic composite tape and the ceramic silicon rubber composite tape outside the first flame-retardant layer at one time by adopting a longitudinal wrapping process to complete the manufacture of a wire group.
The method comprises the steps of stranding a plurality of lead groups together by a high-speed cabling machine to manufacture a cable core, covering a layer of glass fiber tape outside the cable core by a wrapping process to manufacture a fourth flame-retardant layer, covering a layer of ceramic polyolefin refractory material outside the fourth flame-retardant layer to manufacture an oxygen-isolating layer, covering a layer of metal shielding layer outside the oxygen-isolating layer by a seamless alloy copper pipe through a continuous casting and rolling process, and sequentially covering a carbon composite refractory material layer, a steel tape armoring layer and an outer sheath outside the metal shielding layer.
In an alternative embodiment, as shown in fig. 2, in order to avoid the cables from being damaged by pressure during the laying, fixing and using processes, a support may be disposed in the sheath structure, and when the structure is designed, the support includes a bracket 20, and a support member 21 is disposed on each support arm of the bracket, and the bracket is generally designed in an X-shaped structure. The supporting part preferably adopts an integral arc-shaped structure, and a buffer gap is reserved between the outer side surface of the supporting part and the fourth flame-retardant layer. The wire group is arranged in the containing cavity between the two support arms to form a better protection effect. When the number of the lead groups included by the cable core is less than 4, the solid rubber body can be filled in the containing cavity without the lead groups, so that the tensile and anti-extrusion performance of the cable is improved.
In the laying and using process, when the deformation amount of the sheath structure exceeds the range of the buffer gap, the support body can play an effective supporting role to protect the cable core. In order to ensure the complete performance of the cable, the supporting body can also be of a sectional structure, namely, a plurality of supporting bodies are arranged at intervals in the length direction of the cable, and the supporting body also can play a good role in protecting the cable core.
The cable provided by the invention has the advantages of reasonable structural design, excellent thermal stability, moisture resistance, mechanical and physical properties, high flame retardant property and high temperature resistance, can bear larger radiation dose, and has long service life and good service performance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims (9)

1. The utility model provides a high fire-retardant intercity rail transit cable which characterized in that: the cable comprises a cable core and a sheath structure coated outside the cable core, wherein the cable core comprises at least one lead group;
the wire group comprises four insulated single wires which are twisted with each other and have different colors, a first flame-retardant layer, a copper-plastic composite belt and a second flame-retardant layer are sequentially coated outside the insulated single wires from inside to outside, and a drain wire winding layer formed by twisting a plurality of drain wires is arranged between the copper-plastic composite belt and the first flame-retardant layer;
the insulated single wire comprises a conductor, and an anti-corrosion coating, an inner insulating layer, a hot melt adhesive layer, a woven layer, a third flame retardant layer and an outer insulating layer are sequentially coated outside the conductor from inside to outside;
the sheath structure comprises a fourth flame-retardant layer, an oxygen-isolating layer, a metal shielding layer, a carbon composite refractory material layer, a steel belt armor layer and an outer sheath which are sequentially coated from inside to outside.
2. The high flame retardant inter-city rail transit cable of claim 1, wherein: the conductor is a single solid copper conductor.
3. The high flame retardant inter-city rail transit cable of claim 1, wherein: the inner insulating layer is a polyether-ether-ketone insulating layer.
4. The high flame retardant inter-city rail transit cable of claim 1, wherein: the braided layer is formed by braiding copper wires or tinned copper wires.
5. The high flame retardant inter-city rail transit cable of claim 1, wherein: the first flame-retardant layer adopts an F46 fluoroplastic belt layer.
6. The high flame retardant inter-city rail transit cable of claim 1, wherein: the second flame-retardant layer and the third flame-retardant layer are both ceramic silicon rubber composite tape layers.
7. The high flame retardant inter-city rail transit cable of claim 1, wherein: the fourth flame-retardant layer adopts a glass fiber tape layer.
8. The high flame retardant inter-city rail transit cable of claim 1, wherein: the metal shielding layer is made of a copper alloy seamless tube.
9. The high flame retardant inter-city rail transit cable of claim 1, wherein: the drainage wire is a tinned annealed copper wire.
CN202011145614.0A 2020-10-23 2020-10-23 High-flame-retardant intercity rail transit cable Pending CN112331396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011145614.0A CN112331396A (en) 2020-10-23 2020-10-23 High-flame-retardant intercity rail transit cable

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CN202011145614.0A CN112331396A (en) 2020-10-23 2020-10-23 High-flame-retardant intercity rail transit cable

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220032861A1 (en) * 2020-07-29 2022-02-03 Yazaki Corporation Shielded electric wire and wire harness

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220032861A1 (en) * 2020-07-29 2022-02-03 Yazaki Corporation Shielded electric wire and wire harness
US11691577B2 (en) * 2020-07-29 2023-07-04 Yazaki Corporation Shielded electric wire including a conductor having outer diameter set based on thermal expansion and an insulator having thickness based on thermal expansion and wire harness

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