CN111933338A - Low-smoke halogen-free flame-retardant special cable for motor car - Google Patents

Low-smoke halogen-free flame-retardant special cable for motor car Download PDF

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Publication number
CN111933338A
CN111933338A CN202010828811.6A CN202010828811A CN111933338A CN 111933338 A CN111933338 A CN 111933338A CN 202010828811 A CN202010828811 A CN 202010828811A CN 111933338 A CN111933338 A CN 111933338A
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CN
China
Prior art keywords
layer
retardant
conductor
cable
flame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010828811.6A
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Chinese (zh)
Inventor
王波
潘常青
安东辉
梁刚
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.)
Shenzhen Testeck Cable Co ltd
Original Assignee
Shenzhen Testeck Cable Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Testeck Cable Co ltd filed Critical Shenzhen Testeck Cable Co ltd
Priority to CN202010828811.6A priority Critical patent/CN111933338A/en
Publication of CN111933338A publication Critical patent/CN111933338A/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
    • H01B7/02—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
    • H01B7/02—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
    • H01B7/17—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
    • H01B7/184—Sheaths comprising grooves, ribs or other projections
    • 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
    • H01B7/1865—Sheaths comprising braided non-metallic 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
    • H01B7/17—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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/221—Longitudinally placed metal wires or tapes
    • H01B7/223—Longitudinally placed metal wires or tapes forming part of a high tensile strength core
    • 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
    • H01B7/17—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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  • Insulated Conductors (AREA)

Abstract

The invention discloses a low-smoke halogen-free flame-retardant special cable for a motor car.A conductor is internally provided with a wire core, one side of the outer side of the wire core is wrapped with an insulating layer, a flame-retardant layer, a tensile layer, a pressure-resistant layer and a shielding layer, and a high-temperature-resistant rubber extrusion layer and a bulge are arranged between the pressure-resistant layer and the shielding layer; the composite layer of the insulating layer, the flame-retardant layer and the pressure-resistant layer is adopted, so that the composite layer has the advantages of strong insulating and blocking performance, better support performance, stronger temperature resistance, wear resistance and pressure resistance, low smoke, zero halogen, little smoke generated during combustion, no generation of toxic and corrosive gases such as hydrogen chloride and the like, long service life, high tensile strength of the cable in the axial direction through the tension-resistant layer, further insulating and flame-retardant effects, the high-temperature-resistant rubber extrusion layer can reduce the temperature of the cable in case of fire, the insulating damage event is prolonged, or the insulating layer is prevented from being damaged, the conductor is not easy to relatively displace due to the protrusion of the outer wall of the pressure-resistant layer, and high structural reliability.

Description

Low-smoke halogen-free flame-retardant special cable for motor car
Technical Field
The invention relates to the technical field of wires and cables, in particular to a low-smoke halogen-free flame-retardant special cable for a motor car.
Background
Along with the progress of society, scientific development and improvement of environmental awareness of people, the demand of radiation crosslinking low-smoke halogen-free flame-retardant and fire-resistant electric wires and cables is increasing, and meanwhile, the research on novel materials for replacing copper conductors is gradually deepened, so that in the current industrialized society, energy and information are two main pillars of the society, and the electric wires and cables cannot be separated no matter electric energy or information is transmitted, and particularly high-rise commercial and trade buildings, subways, tunnels, nuclear power stations and the like are adopted;
in recent years, the technology of the bullet train is continuously developed, the lines and the number of shifts of the bullet train are continuously increased, the requirement on a power system is high, the cable is an essential element in the power system, once the cable on the bullet train is on fire, a large amount of concentrated smoke and halogen acid gas can be released when the cable is burnt, rescuers need to wear gas masks to extinguish the fire, and meanwhile, great threat is brought to the life safety of the personnel on the bullet train, so the invention provides the low-smoke halogen-free flame-retardant special cable for the bullet train to solve the problems in the prior art.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a low-smoke halogen-free flame-retardant special cable for a motor car, which adopts a composite layer of an insulating layer, a flame-retardant layer and a compression-resistant layer, so that the insulating and blocking performance is strong, the cable has better support performance when being under pressure through the compression-resistant layer of an ethylene-acrylate elastomer, and the problems of crushing, crushing wire cores and cable leakage, circuit breaking and damage are avoided, so that the cable has stronger temperature resistance, wear resistance, pressure resistance and flame-retardant performance, and simultaneously has low smoke, no halogen, little smoke and no generation of toxic and corrosive gases such as hydrogen chloride and the like during combustion, and the service life is long;
the tensile strength of the cable in the axial direction is enhanced through the tensile layer of the woven mesh formed by winding the aramid fiber yarns and the fire-resistant mica tapes, and the composite woven mesh provided with the fire-resistant mica tapes plays a further role in insulation and flame retardance on the conductor;
the high-temperature-resistant rubber extrusion layer can reduce the temperature of the cable in case of fire, prolong the insulation damage event or avoid the insulation layer damage, and play an initial protection role, and the high-temperature-resistant rubber extrusion layer is fixed with the bulge body embedded on the outer wall of the pressure-resistant layer, so that the conductor is not easy to relatively displace, and the structural reliability is high.
In order to realize the purpose of the invention, the invention is realized by the following technical scheme: the utility model provides a low smoke and zero halogen fire-retardant special type cable for motor car, includes the conductor, the conductor transposition each other is equipped with seven groups, seven groups it has lubricating oil to fill between the conductor, the conductor comprises sinle silk, insulating layer and fire-retardant layer, be equipped with the sinle silk in the conductor, sinle silk outside parcel has the insulating layer, the insulating layer outside is equipped with fire-retardant layer, seven groups the conductor outside is equipped with the tensile layer, the tensile layer outside is equipped with compressive layer, seven groups the compressive layer outside parcel of conductor has the shielding layer, the shielding layer outside is equipped with the restrictive coating, the gap packing has the crowded covering of high temperature resistant rubber between compressive layer and the shielding layer, the outer wall on compressive layer encircles along conductor length direction and is equipped with the bulge, it is equipped with the enhancement circle strip to inlay in the crowded covering.
The further improvement lies in that: the pitch ratio of conductor stranding is not more than 10, the wire core is a tinned stranded copper wire, and the diameter of a single wire is 0.22-0.55 mm.
The further improvement lies in that: every group sinle silk in the conductor is equipped with three groups and three groups the setting is twisted each other to the sinle silk, the insulating layer is the teflon layer, fire-retardant layer is irradiation cross-linking low smoke and zero halogen fire-retardant polyolefin layer.
The further improvement lies in that: the lubricating oil is silicone oil, and the pressure-resistant layer is an ethylene-acrylate elastomer layer.
The further improvement lies in that: the shielding layer is an aluminum-plastic composite belt protective layer, and a fluorescent powder layer is arranged on the surface of the sheath layer.
The further improvement lies in that: the tensile layer is a woven mesh formed by winding aramid fibers and fire-resistant mica tapes, and the tensile layer is integrally of a honeycomb structure.
The further improvement lies in that: the high-temperature-resistant rubber extrusion layer is embedded and fixed with the convex body, and the reinforcing round bar is of a steel wire structure.
The invention has the beneficial effects that: the composite layer of the insulating layer, the flame-retardant layer and the anti-pressure layer is adopted, so that the insulating and blocking performances are strong, the cable has better support performance under pressure through the anti-pressure layer of the ethylene-acrylate elastomer, and the problems of crushing, pressing off of a wire core and cable leakage, breaking and damage are avoided, so that the cable has stronger temperature resistance, wear resistance, pressure resistance and flame-retardant performances, simultaneously has low smoke and zero halogen, generates little smoke, generates no toxic and corrosive gases such as hydrogen chloride and the like during combustion, and has long service life;
the tensile strength of the cable in the axial direction is enhanced through the tensile layer of the woven mesh formed by winding the aramid fiber yarns and the fire-resistant mica tapes, and the composite woven mesh provided with the fire-resistant mica tapes plays a further role in insulation and flame retardance on the conductor;
the high-temperature-resistant rubber extrusion layer can reduce the temperature of the cable in case of fire, prolong the insulation damage event or avoid the insulation layer damage, and play an initial protection role, and the high-temperature-resistant rubber extrusion layer is fixed with the bulge body embedded on the outer wall of the pressure-resistant layer, so that the conductor is not easy to relatively displace, and the structural reliability is high.
Drawings
FIG. 1 is a cross-sectional view of the present invention.
Wherein: 1. a conductor; 2. lubricating oil; 3. a wire core; 4. an insulating layer; 5. a flame retardant layer; 6. a tensile layer; 7. a pressure resistant layer; 8. a shielding layer; 9. a sheath layer; 10. a high temperature resistant rubber extrusion layer; 11. a protrusion; 12. reinforcing the round bar; 13. a phosphor layer.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
According to fig. 1, the embodiment provides a low smoke zero halogen flame retardant special cable for a motor car, which comprises a conductor 1, seven groups of conductors 1 are twisted with each other, lubricating oil 2 is filled between the seven groups of conductors 1, the conductor 1 consists of a wire core 3, an insulating layer 4 and a flame-retardant layer 5, the wire core 3 is arranged in the conductor 1, the outer side of the wire core 3 is wrapped with an insulating layer 4, the outer side of the insulating layer 4 is provided with a flame retardant layer 5, the outer sides of the seven groups of conductors 1 are provided with a tensile layer 6, the outer side of the tensile layer 6 is provided with a pressure resistant layer 7, the outer sides of the pressure resistant layers 7 of the seven groups of conductors 1 are wrapped with a shielding layer 8, a sheath layer 9 is arranged on the outer side of the shielding layer 8, a high-temperature resistant rubber extrusion layer 10 is filled in a gap between the compression resistant layer 7 and the shielding layer 8, the outer wall of the anti-pressure layer 7 is provided with a convex body 11 along the length direction of the conductor 1 in a surrounding mode, and a reinforcing round bar 12 is embedded in the high-temperature resistant rubber extrusion layer 10.
The pitch ratio of the conductor 1 twisting is not more than 10, the wire core 3 is a tinned twisted copper wire, the diameter of a single wire is 0.22-0.55 mm, the production and the manufacture are convenient, the actual design requirements of the manufacturing are compounded, and the cost is reduced.
Every group sinle silk 3 in the conductor 1 is equipped with three sets of and three sets 3 transposition setting each other of sinle silk, insulating layer 4 is the teflon layer, can effectively shield the electric leakage, fire-retardant layer 5 is the irradiation crosslinking low smoke and zero halogen fire-retardant polyolefin layer, adopts the barrier layer on irradiation crosslinking low smoke and zero halogen fire-retardant polyolefin layer to improve wire and cable's temperature resistance, wear-resisting and fire behaviour, and played the effect that blocks water.
Lubricating oil 2 is silicon oil, can reduce conductor 1 contact each other, can restrain the friction damage broken string that leads to because the bending of cable, compressive layer 7 is ethylene-acrylic ester elastomer layer, sets up the compressive layer 7 of ethylene-acrylic ester elastomer outside fire-retardant layer 5, makes the cable support nature when receiving pressure better, avoids crushing, presses disconnected sinle silk 3, appears the problem that the cable electric leakage broken circuit damaged.
Shielding layer 8 is the compound area inoxidizing coating of aluminum-plastic, increases anti external interference performance effectively, the surface of restrictive coating 9 is equipped with phosphor layer 13, phosphor layer 13 can send fluorescence at night, with the position of demonstration cable, play the effect of reminding and warning ground personnel or maintenance personal, the night construction installation of being convenient for, also can remind passerby who walks by night simultaneously, avoid the emergence of touching the line accident, set up on the restrictive coating 9 and can clearly indicate cable run's complete situation at phosphor layer 13, make night patrol and protect or the condition of observation cable that maintenance personal can be convenient, phosphor layer 13 luminous need not consume extra energy, belong to cold light source, the luminescent process is not accompanied with and is generated heat, and do not change cable equipment's electrical characteristic, satisfy the environmental protection standard.
Tensile layer 6 is the woven mesh that aramid fiber silk and fire-resistant mica tape winding knot become, tensile layer 6 wholly is cellular structure, and the tensile strength of reinforcing cable in the axial to play further insulating flame retardant role to conductor 1 through the compound woven mesh that is equipped with fire-resistant mica tape, and the structure is more stable, is difficult for scattering.
The high-temperature-resistant rubber extrusion layer 10 is fixedly embedded with the convex body 11, so that the conductor 1 is not easy to relatively move, the structural reliability is high, and the reinforcing round strip 12 is of a steel wire structure and enhances the strength of the wire and cable.
The low-smoke halogen-free flame-retardant special cable for the bullet train adopts a composite layer of the insulating layer 4, the flame-retardant layer 5 and the compression-resistant layer 7, so that the insulating and blocking performances are strong, the cable has better support performance when being under pressure through the compression-resistant layer 7 of the ethylene-acrylate elastomer, and the problems of cable leakage, broken circuit and damage caused by crushing and breaking the wire core 3 are avoided, so that the cable has stronger temperature resistance, wear resistance, pressure resistance and flame-retardant performance, and meanwhile, the cable has low smoke and zero halogen, generates little smoke and does not generate toxic and corrosive gases such as hydrogen chloride and the like during combustion, and the service life is long;
the tensile strength of the cable in the axial direction is enhanced through the tensile layer 6 of the woven mesh formed by winding aramid fiber yarns and the fire-resistant mica tapes, and the conductor is further insulated and flame-retardant through the composite woven mesh provided with the fire-resistant mica tapes;
the high-temperature-resistant rubber extrusion layer 10 can reduce the temperature of a cable in a fire disaster, prolong the insulation damage event or avoid the insulation layer damage to play an initial protection role, and the high-temperature-resistant rubber extrusion layer 10 is fixedly embedded with the protrusion body 11 on the outer wall of the compression-resistant layer 7, so that the conductor 1 is not easy to relatively displace, and the structural reliability is high.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a low smoke and zero halogen flame retardant special cable for motor car which characterized in that: comprises a conductor (1), wherein the conductor (1) is stranded with seven groups, lubricating oil (2) is filled between the conductors (1), the conductor (1) comprises a wire core (3), an insulating layer (4) and a flame-retardant layer (5), the wire core (3) is arranged in the conductor (1), the insulating layer (4) is wrapped on the outer side of the wire core (3), the flame-retardant layer (5) is arranged on the outer side of the insulating layer (4), a tensile layer (6) is arranged on the outer side of the conductor (1), a compression layer (7) is arranged on the outer side of the tensile layer (6), a shielding layer (8) is wrapped on the outer side of the compression layer (7) of the conductor (1), a sheath layer (9) is arranged on the outer side of the shielding layer (8), a high-temperature-resistant rubber extrusion layer (10) is filled in a gap between the compression layer (7) and the shielding layer (8), and a bulge body (11) is arranged on the outer wall of the compression layer (7) in a, and a reinforcing round bar (12) is embedded in the high-temperature-resistant rubber extrusion coating layer (10).
2. The special low-smoke halogen-free flame-retardant cable for the bullet train according to claim 1, is characterized in that: the pitch ratio of the stranding of the conductor (1) is not more than 10, the wire core (3) is a tinned stranded copper wire and the diameter of a single wire is between 0.22mm and 0.55 mm.
3. The special low-smoke halogen-free flame-retardant cable for the bullet train according to claim 1, is characterized in that: every group sinle silk (3) in conductor (1) are equipped with three groups and three groups sinle silk (3) are stranded the setting each other, insulating layer (4) are the teflon layer, fire-retardant layer (5) are irradiation cross-linking low smoke and zero halogen fire-retardant polyolefin layer.
4. The special low-smoke halogen-free flame-retardant cable for the bullet train according to claim 1, is characterized in that: the lubricating oil (2) is silicone oil, and the pressure-resistant layer (7) is an ethylene-acrylate elastomer layer.
5. The special low-smoke halogen-free flame-retardant cable for the bullet train according to claim 1, is characterized in that: the shielding layer (8) is an aluminum-plastic composite tape protective layer, and the surface of the sheath layer (9) is provided with a fluorescent powder layer (13).
6. The special low-smoke halogen-free flame-retardant cable for the bullet train according to claim 1, is characterized in that: the tensile layer (6) is a woven mesh formed by winding aramid fibers and fire-resistant mica tapes, and the tensile layer (6) is integrally of a honeycomb structure.
7. The special low-smoke halogen-free flame-retardant cable for the bullet train according to claim 1, is characterized in that: the high-temperature-resistant rubber extrusion layer (10) is fixedly embedded with the convex body (11), and the reinforcing round bar (12) is of a steel wire structure.
CN202010828811.6A 2020-08-18 2020-08-18 Low-smoke halogen-free flame-retardant special cable for motor car Pending CN111933338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010828811.6A CN111933338A (en) 2020-08-18 2020-08-18 Low-smoke halogen-free flame-retardant special cable for motor car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010828811.6A CN111933338A (en) 2020-08-18 2020-08-18 Low-smoke halogen-free flame-retardant special cable for motor car

Publications (1)

Publication Number Publication Date
CN111933338A true CN111933338A (en) 2020-11-13

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Application Number Title Priority Date Filing Date
CN202010828811.6A Pending CN111933338A (en) 2020-08-18 2020-08-18 Low-smoke halogen-free flame-retardant special cable for motor car

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103426511A (en) * 2013-07-26 2013-12-04 安徽省巢湖海兴电缆集团有限公司 Low-smoke halogen-free flame-resistant control cable for special type trains
CN205487440U (en) * 2016-01-31 2016-08-17 深圳市泰士特线缆有限公司 Fire -retardant wire and cable of low smoke and zero halogen for motor car
CN205487391U (en) * 2016-01-31 2016-08-17 深圳市泰士特线缆有限公司 Railroad locomotive is fluoroplastics wire and cable for vehicle
CN206021934U (en) * 2016-08-29 2017-03-15 新亚特电缆股份有限公司 A kind of self-bearing strengthening control cable for nuclear power station

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103426511A (en) * 2013-07-26 2013-12-04 安徽省巢湖海兴电缆集团有限公司 Low-smoke halogen-free flame-resistant control cable for special type trains
CN205487440U (en) * 2016-01-31 2016-08-17 深圳市泰士特线缆有限公司 Fire -retardant wire and cable of low smoke and zero halogen for motor car
CN205487391U (en) * 2016-01-31 2016-08-17 深圳市泰士特线缆有限公司 Railroad locomotive is fluoroplastics wire and cable for vehicle
CN206021934U (en) * 2016-08-29 2017-03-15 新亚特电缆股份有限公司 A kind of self-bearing strengthening control cable for nuclear power station

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Application publication date: 20201113

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