CN110164601A - Environment-friendly type thermostable gasket for packing - Google Patents

Environment-friendly type thermostable gasket for packing Download PDF

Info

Publication number
CN110164601A
CN110164601A CN201910466110.XA CN201910466110A CN110164601A CN 110164601 A CN110164601 A CN 110164601A CN 201910466110 A CN201910466110 A CN 201910466110A CN 110164601 A CN110164601 A CN 110164601A
Authority
CN
China
Prior art keywords
layer
gasket
packing
environment
friendly type
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
CN201910466110.XA
Other languages
Chinese (zh)
Inventor
郝名东
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.)
Baoying Shuangshi Cable Material Factory
Original Assignee
Baoying Shuangshi Cable Material Factory
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 Baoying Shuangshi Cable Material Factory filed Critical Baoying Shuangshi Cable Material Factory
Priority to CN201910466110.XA priority Critical patent/CN110164601A/en
Publication of CN110164601A publication Critical patent/CN110164601A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/28Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0208Cables with several layers of insulating material
    • H01B7/0225Three or more layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/04Flexible cables, conductors, or cords, e.g. trailing cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875Multi-layer sheaths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/292Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Sealing Material Composition (AREA)

Abstract

The invention discloses a kind of environment-friendly type thermostable gasket for packings, it is related to gasket for packing technical field, including gasket for packing ontology, gasket for packing ontology includes surrounding layer, inner support rope, separation layer and wire body, surrounding layer is located at the outside of gasket for packing ontology, inner support rope is located at the inside center of gasket for packing ontology, separation layer is fixedly connected between surrounding layer and inner support rope, wire body is between surrounding layer and inner support rope, the first filled layer is equipped in surrounding layer, surrounding layer is made of low smoke and zero halogen environmental protection cover, shielded layer, steel wire armor layer and external sheath layer.The configuration of the present invention is simple, it is simple to manufacture easy, it is easy to use, there are good fire resisting, high temperature resistant, low cigarette, wear-resisting and corrosion resistant effect, by the way that separation layer is arranged, the wire body inside gasket for packing can not only be separated, it avoids when generating high temperature, so that wire body is affected between each other, fiber paper is set inside separation layer, improves the tensile resistance of gasket for packing.

Description

Environment-friendly type thermostable gasket for packing
Technical field
The present invention relates to gasket for packing technical field, specially a kind of environment-friendly type thermostable gasket for packing.
Background technique
It is higher and higher recently as understanding degree of its people to quality, environmental protection, low-carbon, safety, in particular with global ring The worsening of border problem forces people increasingly to pay attention to the research of environmental problem, while government department is also to large and medium-sized Building or public place are forbidden to use the regulation of environment-friendly cable.Cable products are formulated respectively in states such as European Union, the U.S., Japan Stringent environmental protection standard, and forbid the application of PVC material by making laws, gradually limit the production of PVC cable.According to system Meter, 35% fire is because caused by electric wire aging short circuit in the world, and the personnel death of one third is because of PVC in fire Caused by the poison gas of cable burning release.For above-mentioned problem, existing sparetime university mostly uses low smoke and zero halogen material substitution, but passes through Low smoke and zero halogen material water imbibition is strong to be shown to actual installation laying, the investigation used, is worn no resistance, to cause one section of laying It after time or has just laid, has occurred as soon as insulation resistance lower than resistance lower than safety value, safety is poor.
Therefore, it is necessary to solve the above problems to invent a kind of environment-friendly type thermostable gasket for packing.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of environment-friendly type thermostable gasket for packing The problem of existing cable gasket for packing high temperature resistance difference and pollution environment.
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of environment-friendly type thermostable gasket for packing, including gasket for packing ontology, the gasket for packing ontology include surrounding layer, inner support Rope, separation layer and wire body, the surrounding layer are located at the outside of gasket for packing ontology, and the inner support rope is located at the interior of gasket for packing ontology At portion center, the separation layer is fixedly connected between surrounding layer and inner support rope, and the wire body is located at surrounding layer and inner support Between rope, the first filled layer is equipped in the surrounding layer;
The surrounding layer is made of low smoke and zero halogen environmental protection cover, shielded layer, steel wire armor layer and external sheath layer, the shielded layer It is wrapped in the outside of low smoke and zero halogen environmental protection cover, the steel wire armor layer is wrapped in the outside of shielded layer, the external sheath layer package In the outside of steel wire armor layer;
The separation layer is made of temperature-resistant insulation layer and fiber paper;
The wire body is made of conductor, polyester belt wrapping layer and electro-insulating rubber layer, and the conductor is located at the center of wire body, The polyester belt wrapping layer is wrapped in the outside of conductor, and the electro-insulating rubber layer is located at the outside of polyester belt wrapping layer, described exhausted The second filled layer is equipped between edge rubber layer and polyester belt wrapping layer, the electro-insulating rubber layer and polyester belt wrapping layer pass through elasticity Body is fixedly connected, and the elastomer has multiple, and multiple elastomer circular arrays distributions, the elastomer is by rubber material It is made.
Optionally, there are four the separation layers, four separation layer circular array distributions.
Optionally, the temperature-resistant insulation layer has two layers, and two layers of temperature-resistant insulation layer is connected to fiber paper Two sides up and down.
Optionally, drainage thread is equipped in the shielded layer, the drainage thread is single copper wire, and the drainage thread section is 0.5mm2
Optionally, the steel wire armor layer with a thickness of 3mm, the count of the steel wire armor layer is 40%.
Optionally, the external sheath layer and electro-insulating rubber layer are all made of environmental-protection flame-retardant macromolecule silicone rubber insulation material system At.
Optionally, first filled layer and the second filled layer are made of glass fiber filled layer.
Technical effect and advantage of the invention:
1, the configuration of the present invention is simple, be simple to manufacture it is easy, it is easy to use, have good fire resisting, high temperature resistant, low cigarette, wear-resisting With corrosion resistant effect.
2, the present invention can not only be separated the wire body inside gasket for packing by setting separation layer, avoid generating high temperature When, so that wire body is affected between each other, fiber paper is set inside separation layer, improves the tensile resistance of gasket for packing.
3, the present invention has preferable high-temperature stability, fire-resistance property, flame-retarding characteristic, environmental protection characteristic, flexible nature, tension Characteristic and shielding character, not only ensure that the compactedness of the construction of cable, but also improve the block-water performance of cable, with fabulous electrical Performance.
It is 4, of the invention by making external sheath layer and electro-insulating rubber layer with environmental-protection flame-retardant macromolecule silicone rubber insulation material, So that gasket for packing has, temperature resistant grade is high, exempt from irradiation, flame retardant property is good, at low cost, while also having low-smoke low-halogen environmentally protective Plurality of advantages.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of present invention filling rope structure;
Fig. 2 is the schematic cross-section of surrounding layer structure of the present invention;
Fig. 3 is the schematic cross-section of insulation layer structure of the present invention;
Fig. 4 is the schematic cross-section of wire body structure of the present invention.
In figure: 1, gasket for packing ontology;2, surrounding layer;3, inner support rope;4, separation layer;5, wire body;6, the first filled layer;7, Low smoke and zero halogen environmental protection cover;8, shielded layer;9, steel wire armor layer;10, external sheath layer;11, temperature-resistant insulation layer;12, fiber paper; 13, conductor;14, polyester belt wrapping layer;15, electro-insulating rubber layer;16, elastomer;17, the second filled layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection ", Terms such as " fixations " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection;It can be mechanical connect It connects;It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.
The present invention provides a kind of environment-friendly type thermostable gasket for packings as shown in Figs 1-4, including gasket for packing ontology 1, by Fig. 1 Shown, gasket for packing ontology 1 includes surrounding layer 2, inner support rope 3, separation layer 4 and wire body 5, and surrounding layer 2 is located at gasket for packing ontology 1 Outside, inner support rope 3 are located at the inside center of gasket for packing ontology 1, and separation layer 4 is fixedly connected on surrounding layer 2 and inner support rope 3 Between, there are four separation layers 4, the distribution of four 4 circular arrays of separation layer, wire body 5 between surrounding layer 2 and inner support rope 3, The first filled layer 6 is equipped in surrounding layer 2;
As shown in Figure 2, surrounding layer 2 is by low smoke and zero halogen environmental protection cover 7, shielded layer 8, steel wire armor layer 9 and 10 groups of external sheath layer At equipped with drainage thread in shielded layer 8, drainage thread is single copper wire, and drainage thread section is 0.5mm2, the thickness of steel wire armor layer 9 For 3mm, the count of steel wire armor layer 9 is 40%, and shielded layer 8 is wrapped in the outside of low smoke and zero halogen environmental protection cover 7, wire armoring Layer 9 is wrapped in the outside of shielded layer 8, and external sheath layer 10 is wrapped in the outside of steel wire armor layer 9;
As shown in Figure 3, separation layer 4 is made of temperature-resistant insulation layer 11 and fiber paper 12, and temperature-resistant insulation layer 11 has two Layer, two layers of temperature-resistant insulation layer 11 are connected to the two sides up and down of fiber paper 12, can not only by the way that separation layer 4 is arranged Wire body 5 inside gasket for packing is separated, avoids making wire body 5 be affected between each other, in separation layer 4 when generating high temperature Fiber paper 12 is arranged in portion, improves the tensile resistance of gasket for packing;
As shown in Figure 4, wire body 5 is made of conductor 13, polyester belt wrapping layer 14 and electro-insulating rubber layer 15, and conductor 13 is located at line At the center of body 5, polyester belt wrapping layer 14 is wrapped in the outside of conductor 13, and electro-insulating rubber layer 15 is located at polyester belt wrapping layer 14 Outside is equipped with the second filled layer 17, the first filled layer 6 and the second filling between electro-insulating rubber layer 15 and polyester belt wrapping layer 14 Layer 17 is made of glass fiber filled layer, and external sheath layer 10 and electro-insulating rubber layer 15 are all made of environmental-protection flame-retardant macromolecule silicon rubber Insulating materials is made, by making external sheath layer 10 and electro-insulating rubber layer with environmental-protection flame-retardant macromolecule silicone rubber insulation material 15, so that gasket for packing has, temperature resistant grade is high, exempt from irradiation, flame retardant property is good, at low cost, while also having low-smoke low-halogen green ring Protect plurality of advantages, electro-insulating rubber layer 15 and polyester belt wrapping layer 14 are fixedly connected by elastomer 16, elastomer 16 have it is multiple, it is more A 16 circular array of elastomer distribution, elastomer 16 are made of rubber material.
In summary: the configuration of the present invention is simple, be simple to manufacture it is easy, it is easy to use, have good fire resisting, high temperature resistant, low Cigarette, wear-resisting and corrosion resistant effect, the present invention have preferable high-temperature stability, fire-resistance property, flame-retarding characteristic, environmental protection characteristic, Flexible nature, tensile characteristics and shielding character, not only ensure that the compactedness of the construction of cable, but also improve the block-water performance of cable, With fabulous electric property.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features, All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (7)

1. a kind of environment-friendly type thermostable gasket for packing, including gasket for packing ontology (1), it is characterised in that: gasket for packing ontology (1) packet Surrounding layer (2), inner support rope (3), separation layer (4) and wire body (5) are included, the surrounding layer (2) is located at the outer of gasket for packing ontology (1) Side, the inner support rope (3) are located at the inside center of gasket for packing ontology (1), and the separation layer (4) is fixedly connected on surrounding layer (2) between inner support rope (3), the wire body (5) is located between surrounding layer (2) and inner support rope (3), the surrounding layer (2) Inside it is equipped with the first filled layer (6);
The surrounding layer (2) is by low smoke and zero halogen environmental protection cover (7), shielded layer (8), steel wire armor layer (9) and external sheath layer (10) group At the shielded layer (8) is wrapped in the outside of low smoke and zero halogen environmental protection cover (7), and the steel wire armor layer (9) is wrapped in shielded layer (8) outside, the external sheath layer (10) are wrapped in the outside of steel wire armor layer (9);
The separation layer (4) is made of temperature-resistant insulation layer (11) and fiber paper (12);
The wire body (5) is made of conductor (13), polyester belt wrapping layer (14) and electro-insulating rubber layer (15), conductor (13) position At the center of wire body (5), the polyester belt wrapping layer (14) is wrapped in the outside of conductor (13), the electro-insulating rubber layer (15) Second is equipped with positioned at the outside of polyester belt wrapping layer (14), between the electro-insulating rubber layer (15) and polyester belt wrapping layer (14) to fill out It fills layer (17), the electro-insulating rubber layer (15) is fixedly connected with polyester belt wrapping layer (14) by elastomer (16), the elasticity Body (16) has multiple, and multiple elastomer (16) circular arrays distributions, the elastomer (16) is made of rubber material.
2. environment-friendly type thermostable gasket for packing according to claim 1, it is characterised in that:
There are four the separation layers (4), four separation layer (4) circular array distributions.
3. environment-friendly type thermostable gasket for packing according to claim 1, it is characterised in that:
The temperature-resistant insulation layer (11) has two layers, and two layers of temperature-resistant insulation layer (11) is connected to fiber paper (12) Two sides up and down.
4. environment-friendly type thermostable gasket for packing according to claim 1, it is characterised in that:
Drainage thread is equipped in the shielded layer (8), the drainage thread is single copper wire, and the drainage thread section is 0.5mm2
5. environment-friendly type thermostable gasket for packing according to claim 1, it is characterised in that:
The steel wire armor layer (9) with a thickness of 3mm, the count of the steel wire armor layer (9) is 40%.
6. environment-friendly type thermostable gasket for packing according to claim 1, it is characterised in that:
The external sheath layer (10) and electro-insulating rubber layer (15) are all made of environmental-protection flame-retardant macromolecule silicone rubber insulation material and are made.
7. environment-friendly type thermostable gasket for packing according to claim 1, it is characterised in that:
First filled layer (6) and the second filled layer (17) are made of glass fiber filled layer.
CN201910466110.XA 2019-05-31 2019-05-31 Environment-friendly type thermostable gasket for packing Pending CN110164601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910466110.XA CN110164601A (en) 2019-05-31 2019-05-31 Environment-friendly type thermostable gasket for packing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910466110.XA CN110164601A (en) 2019-05-31 2019-05-31 Environment-friendly type thermostable gasket for packing

Publications (1)

Publication Number Publication Date
CN110164601A true CN110164601A (en) 2019-08-23

Family

ID=67630286

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910466110.XA Pending CN110164601A (en) 2019-05-31 2019-05-31 Environment-friendly type thermostable gasket for packing

Country Status (1)

Country Link
CN (1) CN110164601A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2334292C1 (en) * 2006-12-22 2008-09-20 Московский технический университет связи и информатики Optical communication cable
KR20090032202A (en) * 2007-09-27 2009-04-01 주식회사 일렉콤테프 Filler of cable
CN106486222A (en) * 2016-10-20 2017-03-08 株洲时代新材料科技股份有限公司 A kind of MULTILAYER COMPOSITE insulating materials and preparation method thereof
CN206806064U (en) * 2017-06-20 2017-12-26 安徽特力电缆有限公司 A kind of subway line special fireproof cable
CN207397765U (en) * 2017-07-05 2018-05-22 深圳市金万兴电线电缆实业有限公司 A kind of oil-resistant polyvinyl chloride insulation shielding cable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2334292C1 (en) * 2006-12-22 2008-09-20 Московский технический университет связи и информатики Optical communication cable
KR20090032202A (en) * 2007-09-27 2009-04-01 주식회사 일렉콤테프 Filler of cable
CN106486222A (en) * 2016-10-20 2017-03-08 株洲时代新材料科技股份有限公司 A kind of MULTILAYER COMPOSITE insulating materials and preparation method thereof
CN206806064U (en) * 2017-06-20 2017-12-26 安徽特力电缆有限公司 A kind of subway line special fireproof cable
CN207397765U (en) * 2017-07-05 2018-05-22 深圳市金万兴电线电缆实业有限公司 A kind of oil-resistant polyvinyl chloride insulation shielding cable

Similar Documents

Publication Publication Date Title
RU2535603C2 (en) Electrical cold-resistant flame-retarding cable, essentially explosion- and flame-proof, for spark-proof circuits
ES2762491T3 (en) Fire resistant electric cable
CN203689969U (en) Temperature-resistant and fire-resistant cable comprising carbon fiber composite tape
CN104240832B (en) A kind of fire-retardant fireproof cable
CN206020738U (en) A kind of fire resistant flame retardant optical cable
CN201489858U (en) Smoke-free, halogen-free and fire-resistant type control cable
CN102314962A (en) Special composite branch cable used for railway tunnels
CN202134273U (en) Flame-retardant high temperature-resistant intrinsically safe computer cable
CN110164601A (en) Environment-friendly type thermostable gasket for packing
CN208400534U (en) Rail traffic low-smoke halogen-free flame-retardant electric wire and cable
CN103474129A (en) Aging resistant environment-friendly type power cable
CN208077662U (en) A kind of extruded insulation fireproof power cable
CN208368237U (en) A kind of agricultural buried cable that blocks water of LSOH anti-flaming
RU102836U1 (en) SYMMETRIC FIRE RESISTANT CABLE
CN109830338A (en) A kind of low-smoke bittern-free highly fire-proof integrated sheath railway signal cable
RU96692U1 (en) FIRE-RESISTANT CABLE FOR CONTROL, ALARM, INFORMATION AND COMMUNICATION FOR EXPLOSIVE AREAS ON FLOATING DRILLING RIGS AND MARINE STATIONARY PLATFORMS
CN208722631U (en) A kind of resistance to compression flame retardant cable
CN207752814U (en) A kind of high water-proof cable of high fire-retardance
CN210429386U (en) Silane crosslinked polyethylene insulation low-smoke halogen-free low-smoke polyolefin sheath flame-retardant cable
CN207800239U (en) A kind of mining communication flexible cable of high fire-retardance flame-proof moisture resistance type
CN205751674U (en) One is pressed waterproof multi-core cable
CN218939291U (en) Medium-voltage fireproof cable
CN208352005U (en) A kind of flame retardant cable
CN201532807U (en) Power cable used for subway
CN201549265U (en) Environmental-friendly flame-retardant computer cable for automatic fire control system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190823

RJ01 Rejection of invention patent application after publication