CN104751993A - Communication cable for security signal system - Google Patents

Communication cable for security signal system Download PDF

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Publication number
CN104751993A
CN104751993A CN201310726055.6A CN201310726055A CN104751993A CN 104751993 A CN104751993 A CN 104751993A CN 201310726055 A CN201310726055 A CN 201310726055A CN 104751993 A CN104751993 A CN 104751993A
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parts
line
copper
strands
coated
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CN201310726055.6A
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CN104751993B (en
Inventor
王惠兵
陆春良
陈夏裕
徐云峰
陈劲
吕秀云
王国权
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Priority to CN201710684366.9A priority Critical patent/CN108447612A/en
Priority to CN201710684500.5A priority patent/CN108447605A/en
Priority to CN201310726055.6A priority patent/CN104751993B/en
Priority to CN201710684695.3A priority patent/CN107880429A/en
Publication of CN104751993A publication Critical patent/CN104751993A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/28—Insulators 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/085—Copper
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00—Crosslinking

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention discloses a communication cable for a security signal system. The cable comprises eight copper leads, wherein the copper leads are wrapped with inner protection layers; a polyester tape layer is wrapped on the external surfaces of four twisted pairs; and each inner protection layer comprises the following components in parts by weight: 100 parts of 1,3-butadiene, 50-60 parts of styrene, 25-35 parts of ethylene-vinyl acetate copolymer, 8-14 parts of ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer, 5-10 parts of siloxane, 20-25 parts of fumed silica, 5-10 parts of copper powder, 1-2 parts of microcrystalline wax, 1.8-2 parts of titanium dioxide, 1-1.5 parts of 4,4'-bis-(alpha, alpha dimethyl benzyl) diphenylamine, 0.5-1 part of dicumyl peroxide, 2-3 parts of triallyl cyanurate, and 3-4 parts of dilauryl thiodipropionate. The cable improves reflection and absorption of a high-frequency electromagnetic wave, improves crosstalk and signal attenuation, expands the bandwidth of absorption frequency, and improves the stability of product performance.

Description

For the communications cable of security signal system
Technical field
The present invention relates to the communications cable, be specifically related to a kind of communications cable for security signal system.
Background technology
Along with the fast development of global IT application highway, local area network digital cable obtains further large-scale application, and being rapidly doubled and redoubled and access network technology leapfrogging growth of network technology, proposes requirements at the higher level to the transmission medium of information.
Gigabit Ethernet can not meet consumer wideband requirement, and 10,000,000,000 will become mainstream technology than Ethernet (10Gbps).Corresponding cable for digital communication need from surpassing five classes (100Mbps), six classes (200Mbps) to seven classes (600Mbps), eight classes (1000Mbps) production development, how to solve the electromagnetic reflection of radioshielding effect and absorption, and cross-talk and attenuation problem, become the direction that those skilled in the art make great efforts.
Summary of the invention
The object of this invention is to provide a kind of communications cable for security signal system, this communications cable improves high-frequency electromagnetic wave reflection and absorption, improves cross-talk and signal attenuation, extends the bandwidth of absorption frequency and improves the stability of properties of product.
For achieving the above object, the technical solution used in the present invention is: a kind of communications cable for security signal system, comprising: eight copper conductors, and this copper conductor is all coated with sheath, in described eight copper conductors, two copper conductor composition first strands are to line, and two copper conductor composition second strands are to line; Two copper conductor composition the 3rd strands are to line; Two copper conductor composition the 4th strands are to line;
One polyester belt is coated on described four strands to line outer surface;
One one side aluminium foil layer is coated on described polyester belt outer surface;
Tincopper fuse wire braided armor is coated on described one side aluminium foil layer, and described tincopper fuse wire braided armor is woven by some strands of tinned wirds and forms, and described per share tinned wird is made up of at least one tinned copper wire;
One external sheath layer is coated on described tincopper fuse wire braided armor outer surface;
Described sheath is made up of the component of following weight portion:
1,3-butadiene 100 parts,
Styrene 50 ~ 60 parts,
Ethylene-vinyl acetate copolymer 25 ~ 35 parts,
Ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer 8 ~ 14 parts,
Siloxanes 5 ~ 10 parts,
Fume colloidal silica 20 ~ 25 parts,
Copper powder 5 ~ 10 parts,
Microwax 1 ~ 2 part,
Titanium dioxide 1.8 ~ 2 parts,
4,4 ' two (α, α dimethyl benzyl) diphenylamines 1 ~ 1.5 part,
Cumyl peroxide 0.5 ~ 1 part,
Triallyl cyanurate 2 ~ 3 parts,
Dilauryl thiodipropionate 3 ~ 4 parts;
Described external sheath layer is made up of the component of following weight portion:
Corvic 100 parts,
Diisononyl phthalate 40 ~ 60 parts,
Epoxidized soybean oil 6 ~ 10 parts,
Calcium-zinc composite stabilizing agent 4 ~ 6 parts,
Tissuemat E 0.5 ~ 2 part,
8 ~ 15 parts, calcium carbonate.
In technique scheme, further improved plan is as follows:
1., in such scheme, described sheath is made up of the component of following weight portion:
1,3-butadiene 100 parts,
Styrene 55 ~ 58 parts,
Ethylene-vinyl acetate copolymer 28 ~ 30 parts,
Ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer 10 ~ 12 part,
Siloxanes 8 ~ 10 parts,
Fume colloidal silica 22 ~ 25 parts,
Copper powder 6 ~ 8 parts,
Microwax 1.2 ~ 1.6 parts,
Titanium dioxide 1.8 ~ 2 parts,
4,4 ' two (α, α dimethyl benzyl) diphenylamines 1 ~ 1.2 part,
Cumyl peroxide 0.6 ~ 0.8 part,
Triallyl cyanurate 2.2 ~ 2.5 parts;
Dilauryl thiodipropionate 3.2 ~ 3.5 parts.
2., in such scheme, described first strand is all coated with double-sided aluminum foil layer to line and the 4th strand to line outer surface to line, the 3rd strand to line, the second strand.
3., in such scheme, described tinned copper wire diameter is 0.13mm.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
1. the present invention is used for the communications cable of security signal system, it adopts special formulation 1,3-butadiene 100 parts, styrene 50 ~ 60 parts, ethylene-vinyl acetate copolymer 25 ~ 35 parts, form suitable viscosity, polarity is conducive to fume colloidal silica 20 ~ 25 parts, the dispersion that copper powder is 5 ~ 10 parts, reduce the volume resistivity of conductive rubber, the electromagnetic reflection of radioshielding effect and absorption are increased.
2. the present invention is used for the communications cable of security signal system, its formula in 1,3-butadiene 100 parts, styrene 50 ~ 60 parts, ethylene-vinyl acetate copolymer 25 ~ 35 parts, fume colloidal silica 20 ~ 25 parts, adds cumyl peroxide 0.5 ~ 1 part in copper powder 5 ~ 10 parts, triallyl cyanurate 2 ~ 3 parts, dilauryl thiodipropionate 3 ~ 4 parts; Greatly can accelerate curingprocess rate, improve crosslink density, improve the heat resistance of vulcanizate, avoid owing to adding fume colloidal silica 20 ~ 25 parts, copper powder 5 ~ 10 parts produces similar sponge-type porosity, thus improves physical mechanical and mechanical property; Secondly, microwax 1 ~ 2 part, titanium dioxide 1.8 ~ 2 parts, 4,4 ' two (α, α dimethyl benzyl) diphenylamines 1 ~ 1.5 part, is conducive to improving copper powder and 1,3-butadiene 100 parts, the intermiscibility that styrene is 50 ~ 60 parts, extends the bandwidth of absorption frequency and improves the stability of properties of product; Secondly, the present invention surpasses 7 class cable for digital communication, and its external sheath layer selects the thermal stability of the relatively existing polyvinyl chloride cable material of thermal stability in manufacturing process to be significantly improved by formulation content.
Accompanying drawing explanation
Accompanying drawing 1 is for the present invention is for the communications cable structural representation of security signal system.
In above accompanying drawing: 1, copper conductor; 2, sheath; 3, the first strand is to line; 4, the second strand is to line; 5, the 3rd strand is to line; 6, the 4th strand is to line; 7, polyester belt; 8, one side aluminium foil layer; 9, tincopper fuse wire braided armor; 10, external sheath layer.
Embodiment
Embodiment. a kind of communications cable for security signal system, comprising: eight copper conductors 1, and this copper conductor 1 is all coated with sheath 2, and in described eight copper conductors 1, two copper conductor composition first strands are to line 3, and two copper conductor composition second strands are to line 4; Two copper conductor composition the 3rd strands are to line 5; Two copper conductor composition the 4th strands are to line 6;
One polyester belt 7 is coated on described four strands to line outer surface;
One one side aluminium foil layer 8 is coated on described polyester belt 7 outer surface;
Tincopper fuse wire braided armor 9 is coated on described one side aluminium foil layer 8, and described tincopper fuse wire braided armor 9 is woven by some strands of tinned wirds and forms, and described per share tinned wird is made up of at least one tinned copper wire;
One external sheath layer is coated on described tincopper fuse wire braided armor 9 outer surface;
Described sheath 2 is made up of the component of following weight portion:
Table 1
Described external sheath layer 10 is made up of the component of following weight portion, as shown in table 2:
Table 2
Embodiment 1 Embodiment 2 Embodiment 3
Corvic 100 100 100
Diisononyl phthalate 45 55 56
Epoxidized soybean oil 8 7 10
Calcium-zinc composite stabilizing agent 5 6 4
Tissuemat E 1.8 1 0.9
Calcium carbonate 12 14 9
Above-mentioned first strand is twisted line 3, second and is all coated with double-sided aluminum foil layer 10 to line 5 and the 4th strand to line 6 outer surface to line 4, the 3rd strand.
Above-mentioned tinned copper wire diameter is 0.13mm.
When adopting the above-mentioned communications cable for security signal system, it adopts special formulation 1,3-butadiene 100 parts, styrene 50 ~ 60 parts, ethylene-vinyl acetate copolymer 25 ~ 35 parts, form suitable viscosity, polarity is conducive to fume colloidal silica 20 ~ 25 parts, the dispersion that copper powder is 5 ~ 10 parts, reduce the volume resistivity of conductive rubber, the electromagnetic reflection of radioshielding effect and absorption are increased; Secondly, it can accelerate curingprocess rate greatly, improves crosslink density, improves the heat resistance of vulcanizate; Again, be conducive to improving copper powder and 1,3-butadiene 100 parts, the intermiscibility that styrene is 50 ~ 60 parts, extend the bandwidth of absorption frequency and improve the stability of properties of product.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (4)

1. the communications cable for security signal system, comprise: eight copper conductors (1), this copper conductor (1) is all coated with sheath (2), and in described eight copper conductors (1), two copper conductor composition first strands are to line (3), and two copper conductor composition second strands are to line (4); Two copper conductor composition the 3rd strands are to line (5); Two copper conductor composition the 4th strands are to line (6);
One polyester belt (7) is coated on described four strands to line outer surface;
One one side aluminium foil layer (8) is coated on described polyester belt (7) outer surface;
Tincopper fuse wire braided armor (9) is coated on described one side aluminium foil layer (8), and described tincopper fuse wire braided armor (9) is woven by some strands of tinned wirds and forms, and described per share tinned wird is made up of at least one tinned copper wire;
One external sheath layer (10) is coated on described tincopper fuse wire braided armor (9) outer surface;
It is characterized in that: described sheath (2) is made up of the component of following weight portion:
1,3-butadiene 100 parts,
Styrene 50 ~ 60 parts,
Ethylene-vinyl acetate copolymer 25 ~ 35 parts,
Ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer 8 ~ 14 parts,
Siloxanes 5 ~ 10 parts,
Fume colloidal silica 20 ~ 25 parts,
Copper powder 5 ~ 10 parts,
Microwax 1 ~ 2 part,
Titanium dioxide 1.8 ~ 2 parts,
4,4 ' two (α, α dimethyl benzyl) diphenylamines 1 ~ 1.5 part,
Cumyl peroxide 0.5 ~ 1 part,
Triallyl cyanurate 2 ~ 3 parts,
Dilauryl thiodipropionate 3 ~ 4 parts;
Described external sheath layer (10) is made up of the component of following weight portion:
Corvic 100 parts,
Diisononyl phthalate 40 ~ 60 parts,
Epoxidized soybean oil 6 ~ 10 parts,
Calcium-zinc composite stabilizing agent 4 ~ 6 parts,
Tissuemat E 0.5 ~ 2 part,
8 ~ 15 parts, calcium carbonate.
2. the communications cable according to claim 1, is characterized in that: described sheath (2) is made up of the component of following weight portion:
1,3-butadiene 100 parts,
Styrene 55 ~ 58 parts,
Ethylene-vinyl acetate copolymer 28 ~ 30 parts,
Ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer 10 ~ 12 part,
Siloxanes 8 ~ 10 parts,
Fume colloidal silica 22 ~ 25 parts,
Copper powder 6 ~ 8 parts,
Microwax 1.2 ~ 1.6 parts,
Titanium dioxide 1.8 ~ 2 parts,
4,4 ' two (α, α dimethyl benzyl) diphenylamines 1 ~ 1.2 part,
Cumyl peroxide 0.6 ~ 0.8 part,
Triallyl cyanurate 2.2 ~ 2.5 parts,
Dilauryl thiodipropionate 3.2 ~ 3.5 parts.
3. the communications cable according to claim 1, is characterized in that: described first strand is all coated with double-sided aluminum foil layer (10) to line (5) and the 4th strand to line (6) outer surface to line (4), the 3rd strand to line (3), the second strand.
4. the communications cable according to claim 2, is characterized in that: described tinned copper wire diameter is 0.13mm.
CN201310726055.6A 2013-12-25 2013-12-25 The communications cable for security signal system Active CN104751993B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201710684366.9A CN108447612A (en) 2013-12-25 2013-12-25 Low decaying local area network digital cable
CN201710684500.5A CN108447605A (en) 2013-12-25 2013-12-25 High thermal stability cable for digital communication
CN201310726055.6A CN104751993B (en) 2013-12-25 2013-12-25 The communications cable for security signal system
CN201710684695.3A CN107880429A (en) 2013-12-25 2013-12-25 The communications cable with function of shielding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310726055.6A CN104751993B (en) 2013-12-25 2013-12-25 The communications cable for security signal system

Related Child Applications (3)

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CN201710684366.9A Division CN108447612A (en) 2013-12-25 2013-12-25 Low decaying local area network digital cable
CN201710684500.5A Division CN108447605A (en) 2013-12-25 2013-12-25 High thermal stability cable for digital communication
CN201710684695.3A Division CN107880429A (en) 2013-12-25 2013-12-25 The communications cable with function of shielding

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CN104751993A true CN104751993A (en) 2015-07-01
CN104751993B CN104751993B (en) 2018-02-16

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CN201710684695.3A Pending CN107880429A (en) 2013-12-25 2013-12-25 The communications cable with function of shielding
CN201710684366.9A Pending CN108447612A (en) 2013-12-25 2013-12-25 Low decaying local area network digital cable
CN201310726055.6A Active CN104751993B (en) 2013-12-25 2013-12-25 The communications cable for security signal system

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CN201710684695.3A Pending CN107880429A (en) 2013-12-25 2013-12-25 The communications cable with function of shielding
CN201710684366.9A Pending CN108447612A (en) 2013-12-25 2013-12-25 Low decaying local area network digital cable

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Cited By (2)

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CN106340348A (en) * 2016-11-14 2017-01-18 广州市宇洪电线电缆实业有限公司 High-flame-retardant fireproof wiring cable for intelligent grid and client connection
CN106710681A (en) * 2017-02-23 2017-05-24 湖北宇洪光电实业有限公司 6<+> digital communication cable and manufacturing method therefor

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CN202996410U (en) * 2012-11-28 2013-06-12 江苏永鼎股份有限公司 Low-cost environment-friendly relay cable
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