CN105448422A - Low-loss composite data cable facilitating comprehensive wiring - Google Patents

Low-loss composite data cable facilitating comprehensive wiring Download PDF

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Publication number
CN105448422A
CN105448422A CN201510852870.6A CN201510852870A CN105448422A CN 105448422 A CN105448422 A CN 105448422A CN 201510852870 A CN201510852870 A CN 201510852870A CN 105448422 A CN105448422 A CN 105448422A
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CN
China
Prior art keywords
sheath
sub
twisted wire
pitch
conductor
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
CN201510852870.6A
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Chinese (zh)
Inventor
王惠兵
吕秀云
孙国跃
吴士杰
刘党荣
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.)
Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Jiangsu Hengtong Wire and Cable Technology 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 Jiangsu Hengtong Wire and Cable Technology Co Ltd filed Critical Jiangsu Hengtong Wire and Cable Technology Co Ltd
Priority to CN201310113647.0A priority Critical patent/CN103236316B/en
Publication of CN105448422A publication Critical patent/CN105448422A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/005Quad constructions
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/04Cables with twisted pairs or quads with pairs or quads mutually positioned to reduce cross-talk
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/18Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/20Cables having a multiplicity of coaxial lines
    • H01B11/206Tri-conductor coaxial cables
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/08Screens specially adapted for reducing cross-talk
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/18Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/18Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1895Particular features or applications
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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
    • H01B7/184Sheaths comprising grooves, ribs or other projections
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01B7/22Metal wires or tapes, e.g. made of steel
    • H01B7/221Longitudinally placed metal wires or tapes
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01B7/22Metal wires or tapes, e.g. made of steel
    • H01B7/228Metal braid
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806Protection against damage caused by corrosion

Abstract

The invention discloses a low-loss composite data cable facilitating comprehensive wiring. The low-loss composite data cable comprises a steel conductor, a coaxial conductor, 8 copper conductors and an outer sheath body, wherein the 8 copper conductors are stranded pairwise to form four pairs functioning as stranded conductor pairs for information communication; the outer sheath body comprises a first sub-sheath, a second sub-sheath and a third sub-sheath; a Y-shaped connecting part is arranged at the center of the first sub-sheath, the second sub-sheath and the third sub-sheath; the first sub-sheath covers the outer surface of the steel conductor; the second sub-sheath covers the outer surface of a first inner sheath layer, the third sub-sheath covers the outer surface of a second inner sheath layer; a plurality of metal leads are arranged at intervals, one end of each metal lead is wound on the surface of the steel conductor and the other end of each metal conductor is electrically connected to a copper wire woven shielding layer. The low-loss composite data cable has the advantages that crosstalk of communication cables can be reduced largely, the mutual capacitance coupling of cables can be reduced while other electric parameters are considered, and further electric signal delay differential increase also can be avoided.

Description

Be convenient to the low-loss complex data cable of comprehensive wiring
Technical field
The present invention relates to a kind of complex data cable, particularly relate to a kind of low-loss complex data cable being convenient to comprehensive wiring.
Background technology
The structure of common single type telecommunication cable: its primary structure of the cable of pair twist structure is extrude one deck insulation outside copper conductor, stranding after single line pair twist, outside adopts the structure of polyolefin oversheath, coaxial cable primary structure is extrude outside inner wire or the insulation of wrapped one deck, then adopt aluminium foil or braiding as the structure of polyolefin after outer conductor as oversheath, because the said structure of telecommunication cable limits to, in exterior finish distributing system, automated detection system, cause that stretching is comparatively large, quality is unstable, it is loaded down with trivial details to connect up, unreliable and affect serviceability.
Summary of the invention
The invention provides a kind of low-loss complex data cable being convenient to comprehensive wiring, this low-loss complex data cable reduces cross-talk and the signal of telecommunication delay inequality of the communications cable further, and avoids the power loss of signal, improves the stability of signal power and performance.
For achieving the above object, the technical solution used in the present invention is: a kind of low-loss complex data cable being convenient to comprehensive wiring, comprising: steel conductor, coaxial conductor, eight copper conductor and oversheath bodies being coated with polyethylene layer; Described coaxial conductor outer surface is coated with plastic insulating layer, and this plastic insulating layer outer surface is coated with the first wire sheathing, and the first inner restrictive coating is coated on described first wire sheathing outer surface;
The stranded formation four between two of described eight copper conductors is to the twisted wire pair as information communication, described four twisted pair wire centering first twisted wires to, the second twisted wire to, the 3rd twisted wire to the 4th twisted wire to being arranged in order counterclockwise and stranded formation conductive cable core, first twisted wire to the 3rd twisted wire pair and the second twisted wire to the 4th twisted wire to alternately, described four twisted pair wires are all coated with foil shielding layer to respective outer surface, one polyester belt is wrapped in described foil shielding layer outer surface, and the second inner restrictive coating is coated on described polyester belt outer surface;
Described oversheath body comprises the first sub-sheath, the second sub-sheath and the 3rd sub-sheath, this first sub-sheath, the second sub-sheath and the 3rd sub-sheath center have one " people " font connecting portion, first of this " people " font connecting portion connects muscle portion, second and is even even connected respectively to described first sub-sheath, the second sub-sheath and the 3rd sub-sheath in muscle portion in muscle portion and the 3rd, first sub-sheath is coated on described steel conductor outside surfaces, second sub-sheath is coated on described first inner restrictive coating outer surface, and the 3rd sub-sheath is coated on described second inner restrictive coating outer surface;
Some plain conductors alternately, this plain conductor one ends wound is in described steel conductive surface, and the plain conductor other end passes described first sub-sheath, the first muscle portion of company, the 3rd muscle portion of company and the 3rd sub-sheath successively and is electrically connected to described proof copper-wire braided screen;
The right pitch of described first twisted wire is 15 ~ 15.5mm, and the right pitch of described second twisted wire is 13.5 ~ 13.9mm, and the right pitch of described 3rd twisted wire is 14.2 ~ 14.6mm, and the right pitch of described 4th twisted wire is 12.7 ~ 13.1mm;
Adjacent segments apart from design formula is: 0.002< ∣ - ∣≤0.013,
Pitch design of being separated by formula is: 0.001< ∣ - ∣≤0.011;
H1 is the right pitch of the first twisted wire, h2 be the second twisted wire to or the right pitch of the 4th twisted wire, h3 is the right pitch of the 3rd twisted wire.
In technique scheme, further improvement opportunity scheme is as follows:
In such scheme, described foil shielding layer is made up of laminated polyester film and the aluminium foil layer being positioned at its medial surface.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, the low-loss complex data cable of comprehensive wiring is convenient in the present invention, both the circumstance complication of cable in work progress had effectively been solved, such as in the distribution system in the power supply-distribution system and building of machine room, the wiring of cable brings many inconvenience, cable can produce certain electromagnetic field when running around, thus interference other system, can the other problems such as equipment operation failure be caused time serious; Avoid and pull cable, there is good tensile strength and elongation, both guaranteed the self-bearing ability meeting cable, and also solved the problem of cable interference mutually in running simultaneously, ensure that the long-term stability of transmission characteristic, have again emergency maintenance convenient, can the advantage such as Reusability, have obvious economic benefit and promotional value, when can stand variation of ambient temperature, the test of material rising-heat contracting-cold, therefore can extend the useful life of cable, not easily be corroded, long service life.
2, the low-loss complex data cable of comprehensive wiring is convenient in the present invention, breach the circular configuration of traditional strand to stranding after line, effectively improve the surplus of communication cable cross-talk (NEXT, FEXT) index 1%, even also improve the 1dB surplus of loss (INSERTIONLOSS), increase by 1.5% stability of characteristic impedance (IMPEDANCE), simultaneously while guaranteeing the transmission performance that cable is stable, add the performance of the transmission electricity of copper cable.
3, the low-loss complex data cable of comprehensive wiring is convenient in the present invention, specific strand is adopted to become core pitch to combine line with strand to string pitch collocation and specific conductive cable core, reduce transmission of electric signals on its loop, produce electromagnetic induction impact, greatly reduce the cross-talk of the communications cable, the electric field that wherein capacitive sensing produces has both positive and negative polarity, can cancel each other after adjacent two induction field superpositions, reduce mutual capacitively coupled, taken into account other electric parameter, it also avoid signal of telecommunication delay inequality increases simultaneously.
4, the low-loss complex data cable of comprehensive wiring is convenient in the present invention, it comprises some plain conductors alternately, this plain conductor one ends wound is in described steel conductive surface, the plain conductor other end passes described first sub-sheath, the first muscle portion of company, the 3rd muscle portion of company and the 3rd sub-sheath successively and is electrically connected to described proof copper-wire braided screen, reduce cross-talk and the signal of telecommunication delay inequality of the communications cable, transmission source is returned in the power loss and the signal reflex that avoid signal, improves the stability of signal power and performance; Secondly, it comprises some plain conductors alternately, this plain conductor one ends wound is in described steel conductive surface, the plain conductor other end passes described first sub-sheath, the first muscle portion of company, the 3rd muscle portion of company and the 3rd sub-sheath successively and is electrically connected to described proof copper-wire braided screen, and 2.4 ~ 3.7 times that are spaced apart conductive cable core twisting pitch of described adjacent 2 plain conductors, the cross-talk of the further reduction communications cable and signal of telecommunication delay inequality, and avoid the power loss of signal, improve the stability of signal power and performance.
Accompanying drawing explanation
Accompanying drawing 1 is convenient to the low-loss complex data construction of cable schematic diagram one of comprehensive wiring for the present invention;
Accompanying drawing 2 is convenient to the low-loss complex data construction of cable schematic diagram two of comprehensive wiring for the present invention.
In above accompanying drawing: 1, steel conductor; 2, coaxial conductor; 3, copper conductor; 31, polyethylene layer; 4, oversheath body; 41, the first sub-sheath; 42, the second sub-sheath; 43, the 3rd sub-sheath; 5, plastic insulating layer; 6, the first wire sheathing; 7, the first inner restrictive coating; 8, conductive cable core; 81, the first twisted wire pair; 82, the second twisted wire pair; 83, the 3rd twisted wire pair; 84, the 4th twisted wire pair; 9, foil shielding layer; 10, polyester belt; 11, the second inner restrictive coating; 12, " people " font connecting portion; 121, first connects muscle portion; 122, second connects muscle portion; 123, the 3rd connects muscle portion; 13, plain conductor; 14, proof copper-wire braided screen; 15, the second wire sheathing.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment 1: a kind of low-loss complex data cable being convenient to comprehensive wiring, comprising: steel conductor 1, coaxial conductor 2, eight are coated with copper conductor 3 and the oversheath body 4 of polyethylene layer 31; Described coaxial conductor 2 outer surface is coated with plastic insulating layer 5, and this plastic insulating layer 5 outer surface is coated with the first wire sheathing 6, first inner restrictive coating 7 and is coated on described first wire sheathing 6 outer surface;
The stranded formation four between two of described eight copper conductors 3 is to the twisted wire pair as information communication, described four twisted pair wire centering first twisted wires to the 81, second twisted wire to the 82, the 3rd twisted wire to 83 and the 4th twisted wire be arranged in order counterclockwise and stranded formation conductive cable core 8 84, first twisted wire to 81 and the 3rd twisted wire to 83 and second twisted wire to 82 and the 4th twisted wire to 84 alternately, described four twisted pair wires are all coated with foil shielding layer 9 to respective outer surface, one polyester belt 10 is wrapped in described foil shielding layer 9 outer surface, and the second inner restrictive coating 11 is coated on described polyester belt 10 outer surface;
Described oversheath body 4 comprises the first sub-sheath 41, second sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, second sub-sheath 42 and the 3rd sub-sheath 43 center have one " people " font connecting portion 12, first of this " people " font connecting portion 12 connects muscle portion 121, second connects muscle portion 122 and the 3rd is even connected respectively to described first sub-sheath 41 in muscle portion 123, second sub-sheath 42 and the 3rd sub-sheath 43, first sub-sheath 41 is coated on described steel conductor 1 outer surface, second sub-sheath 42 is coated on described first inner restrictive coating 7 outer surface, 3rd sub-sheath 43 is coated on described second inner restrictive coating 11 outer surface,
Proof copper-wire braided screen 14 is provided with between described 3rd sub-sheath 43 and the first inner restrictive coating 11, both external diameter can not be increased, the tractive effort needed can be ensured again, thus ensure that the adhesive between the 3rd sub-sheath 43 and the first inner restrictive coating 11, serve humidification, there is very large tensile strength, also can eliminate or reduce the stress of cable when movement or twisting states, improve the useful life of cable; Secondly, further enhancing interference free performance.
Some plain conductors 13 alternately, this plain conductor 13 one ends wound is in described steel conductor 1 surface, and plain conductor 13 other end passes described first muscle portion 121 of sub-sheath 41, first company, the 3rd muscle portion 123 of company and the 3rd sub-sheath 43 successively and is electrically connected to described proof copper-wire braided screen 14; 2.4 ~ 3.7 times that are spaced apart conductive cable core 8 twisting pitch of described adjacent 2 plain conductors 13;
Described first twisted wire is 15 ~ 15.5mm to the pitch of 81, and described second twisted wire is 13.5 ~ 13.9mm to the pitch of 82, and described 3rd twisted wire is 14.2 ~ 14.6mm to the pitch of 83, and described 4th twisted wire is 12.7 ~ 13.1mm to the pitch of 84;
Adjacent segments apart from design formula is: 0.002< ∣ - ∣≤0.013,
Pitch design of being separated by formula is: 0.001< ∣ - ∣≤0.011;
H1 be the first twisted wire to 81 pitch, h2 be the second twisted wire to 82 or the 4th twisted wire to 84 pitch, h3 be the 3rd twisted wire to 83 pitch.
Described first twisted wire is 15.2mm to the pitch of 81, and described second twisted wire is 13.7mm to the pitch of 82, and described 3rd twisted wire is 14.4mm to the pitch of 83, and described 4th twisted wire is 12.9mm to the pitch of 84.
Above-mentioned four twisted pair wire strands form conductive cable core 8, and this conductive cable core 8 twisting pitch is that the 4th twisted wire is to 9.8 of 84 pitches times.
Above-mentioned foil shielding layer 9 is made up of laminated polyester film and the aluminium foil layer being positioned at its medial surface, and described polyester film layer thickness is 0.020 ± 0.002mm, and described aluminium foil layer thickness is 0.014 ± 0.002mm; Above-mentioned first muscle portion of company, second connects muscle portion and first company's adjacent angle in muscle portion is 120 °; Above-mentioned steel conductor 1 and all annealed PROCESS FOR TREATMENT of copper conductor 3.
Embodiment 2: a kind of low-loss complex data cable being convenient to comprehensive wiring, comprising: steel conductor 1, coaxial conductor 2, eight are coated with copper conductor 3 and the oversheath body 4 of polyethylene layer 31; Described coaxial conductor 2 outer surface is coated with plastic insulating layer 5, and this plastic insulating layer 5 outer surface is coated with the first wire sheathing 6, first inner restrictive coating 7 and is coated on described first wire sheathing 6 outer surface; Be provided with one second wire sheathing 15 between described first inner restrictive coating 7 and the second sub-sheath 42, thus be conducive to reducing mutual coupling further, improve signal transmission quality;
The stranded formation four between two of described eight copper conductors 3 is to the twisted wire pair as information communication, described four twisted pair wire centering first twisted wires to the 81, second twisted wire to the 82, the 3rd twisted wire to 83 and the 4th twisted wire be arranged in order counterclockwise and stranded formation conductive cable core 8 84, first twisted wire to 81 and the 3rd twisted wire to 83 and second twisted wire to 82 and the 4th twisted wire to 84 alternately, described four twisted pair wires are all coated with foil shielding layer 9 to respective outer surface, one polyester belt 10 is wrapped in described foil shielding layer 9 outer surface, and the second inner restrictive coating 11 is coated on described polyester belt 10 outer surface;
Described oversheath body 4 comprises the first sub-sheath 41, second sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, second sub-sheath 42 and the 3rd sub-sheath 43 center have one " people " font connecting portion 12, first of this " people " font connecting portion 12 connects muscle portion 121, second connects muscle portion 122 and the 3rd is even connected respectively to described first sub-sheath 41 in muscle portion 123, second sub-sheath 42 and the 3rd sub-sheath 43, first sub-sheath 41 is coated on described steel conductor 1 outer surface, second sub-sheath 42 is coated on described first inner restrictive coating 7 outer surface, 3rd sub-sheath 43 is coated on described second inner restrictive coating 11 outer surface,
Proof copper-wire braided screen 14 is provided with between described 3rd sub-sheath 43 and the first inner restrictive coating 11, both external diameter can not be increased, the tractive effort needed can be ensured again, thus ensure that the adhesive between the 3rd sub-sheath 43 and the first inner restrictive coating 11, serve humidification, there is very large tensile strength, also can eliminate or reduce the stress of cable when movement or twisting states, improve the useful life of cable; Secondly, further enhancing interference free performance.
Some plain conductors 1 alternately, this plain conductor 13 one ends wound is in described steel conductor 1 surface, and plain conductor 13 other end passes described first muscle portion 121 of sub-sheath 41, first company, the 3rd muscle portion 123 of company and the 3rd sub-sheath 43 successively and is electrically connected to described proof copper-wire braided screen 14; 2.4 ~ 3.7 times that are spaced apart conductive cable core 8 twisting pitch of described adjacent 2 plain conductors 13;
Described first twisted wire is 15.1mm to the pitch of 81, and described second twisted wire is 13.5mm to the pitch of 82, and described 3rd twisted wire is 14.3mm to the pitch of 83, and described 4th twisted wire is 12.8mm to the pitch of 84;
Adjacent segments apart from design formula is: 0.002< ∣ - ∣≤0.013,
Pitch design of being separated by formula is: 0.001< ∣ - ∣≤0.011;
H1 be the first twisted wire to 81 pitch, h2 be the second twisted wire to 82 or the 4th twisted wire to 84 pitch, h3 be the 3rd twisted wire to 83 pitch.
Above-mentioned four twisted pair wire strands form conductive cable core 8, and this conductive cable core 8 twisting pitch is that the 4th twisted wire is to 7.7 of 84 pitches times.
Foregoing is further described below.
The design of aluminum foil material
According to telecommunication cable standard and requirement, shield and be made up of one deck one side clad aluminum foil and a drain wire, one side clad aluminum foil requires to refer to following table:
The technical requirement of one side clad aluminum foil
Weave copper wire material used design
According to telecommunication cable standard and requirement, the braided material of armour can be single circular copper wire or tin-plating round copper wire, and allow unidirectional sub-thread broken string length to be not more than 150mm, trimmed is answered in broken string termination
The main performance index of finished cable
Conductor DC resistance (20 DEG C) :≤96 Ω/km;
The characteristic impedance (20 DEG C) of paired cable: 100 ± 15 Ω;
The characteristic impedance (20 DEG C) of coaxial cable: 75 ± 15 Ω;
The insulation resistance of cable: >=10000M Ω km.
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 (2)

1. be convenient to a low-loss complex data cable for comprehensive wiring, it is characterized in that: comprising: steel conductor (1), coaxial conductor (2), eight copper conductor (3) and oversheath bodies (4) being coated with polyethylene layer (31); Described coaxial conductor (2) outer surface is coated with plastic insulating layer (5), and this plastic insulating layer (5) outer surface is coated with the first wire sheathing (6), and the first inner restrictive coating (7) is coated on described first wire sheathing (6) outer surface;
The stranded formation four between two of described eight copper conductors (3) is to the twisted wire pair as information communication, described four twisted pair wire centering first twisted wires are to (81), second twisted wire is to (82), 3rd twisted wire is arranged in order and stranded formation conductive cable core (8) (84) counterclockwise to (83) and the 4th twisted wire, first twisted wire to (81) and the 3rd twisted wire to (83) and the second twisted wire to (82) and the 4th twisted wire to (84) alternately, described four twisted pair wires are all coated with foil shielding layer (9) to respective outer surface, one polyester belt (10) is wrapped in described foil shielding layer (9) outer surface, second inner restrictive coating (11) is coated on described polyester belt (10) outer surface,
Described oversheath body (4) comprises the first sub-sheath (41), second sub-sheath (42) and the 3rd sub-sheath (43), this first sub-sheath (41), second sub-sheath (42) and the 3rd sub-sheath (43) center have one " people " font connecting portion (12), first of this " people " font connecting portion (12) connects muscle portion (121), second company muscle portion (122) and the 3rd connects muscle portion (123) and is connected respectively to described first sub-sheath (41), second sub-sheath (42) and the 3rd sub-sheath (43), first sub-sheath (41) is coated on described steel conductor (1) outer surface, second sub-sheath (42) is coated on described first inner restrictive coating (7) outer surface, 3rd sub-sheath (43) is coated on described second inner restrictive coating (11) outer surface,
Some plain conductors (13) alternately, this plain conductor (13) one ends wound is in described steel conductor (1) surface, and plain conductor (13) other end passes described first sub-sheath (41), the first company muscle portion (121), the 3rd company muscle portion (123) and the 3rd sub-sheath (43) successively and is electrically connected to described proof copper-wire braided screen (14);
Described first twisted wire is 15 ~ 15.5mm to the pitch of (81), and described second twisted wire is 13.5 ~ 13.9mm to the pitch of (82), and described 3rd twisted wire is 14.2 ~ 14.6mm to the pitch of (83), and described 4th twisted wire is 12.7 ~ 13.1mm to the pitch of (84);
Adjacent segments apart from design formula is: 0.002< ∣ - ∣≤0.013,
Pitch design of being separated by formula is: 0.001< ∣ - ∣≤0.011;
H1 is the pitch of the first twisted wire to (81), and h2 is the second twisted wire to (82) or the 4th twisted wire to the pitch of (84), and h3 is that the 3rd twisted wire is to the pitch of (83);
Described first twisted wire is 15.2mm to the pitch of (81), and described second twisted wire is 13.7mm to the pitch of (82), and described 3rd twisted wire is 14.4mm to the pitch of (83), and described 4th twisted wire is 12.9mm to the pitch of (84);
2.4 ~ 3.7 times that are spaced apart conductive cable core (8) twisting pitch of described adjacent 2 plain conductors (13).
2. according to the low-loss complex data cable being convenient to comprehensive wiring described in claim 1, it is characterized in that: described foil shielding layer (9) is made up of laminated polyester film and the aluminium foil layer being positioned at its medial surface.
CN201510852870.6A 2013-04-03 2013-04-03 Low-loss composite data cable facilitating comprehensive wiring Pending CN105448422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310113647.0A CN103236316B (en) 2013-04-03 2013-04-03 The compound data cable of stretch-proof low-loss

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201310113647.0A Division CN103236316B (en) 2013-04-03 2013-04-03 The compound data cable of stretch-proof low-loss

Publications (1)

Publication Number Publication Date
CN105448422A true CN105448422A (en) 2016-03-30

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Family Applications (5)

Application Number Title Priority Date Filing Date
CN201310113647.0A Active CN103236316B (en) 2013-04-03 2013-04-03 The compound data cable of stretch-proof low-loss
CN201510847244.8A Pending CN105405530A (en) 2013-04-03 2013-04-03 Coaxial data compound cable
CN201510848088.7A Active CN105405514B (en) 2013-04-03 2013-04-03 The low-loss composite data cable of high shielding properties
CN201510848316.0A Pending CN105427954A (en) 2013-04-03 2013-04-03 Tensile data cable for audio and video transmission
CN201510852870.6A Pending CN105448422A (en) 2013-04-03 2013-04-03 Low-loss composite data cable facilitating comprehensive wiring

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CN103236316B (en) 2016-05-11
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CN105427954A (en) 2016-03-23
CN105405530A (en) 2016-03-16
CN103236316A (en) 2013-08-07

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