CN103165244A - Communication cable with waterproof and anti-interference functions - Google Patents
Communication cable with waterproof and anti-interference functions Download PDFInfo
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- CN103165244A CN103165244A CN2013100883611A CN201310088361A CN103165244A CN 103165244 A CN103165244 A CN 103165244A CN 2013100883611 A CN2013100883611 A CN 2013100883611A CN 201310088361 A CN201310088361 A CN 201310088361A CN 103165244 A CN103165244 A CN 103165244A
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Abstract
The invention discloses a hybrid communication cable with waterproof and anti-interference functions. The communication cable comprises a steel conductor, a copper shaft conductor, eight copper leads and an outer sheath body; every two of the eight copper leads are twisted with each other to form four twisted pairs for information communication, and a water blocking filling layer is filled in gaps between a polyester tape and a second inner sheath layer and between the polyester tape and the four twisted pairs; and the outer sheath body comprises a first sub sheath, a second sub sheath and a third sub sheath, wherein a 'herringbone' connecting part is formed in the centers of the first sub sheath, the second sub sheath and the third sub sheath, the first sub sheath wraps the outer surface of the steel conductor, the second sub sheath wraps the outer surface of a first inner sheath layer, and the third sub sheath wraps the outer surface of the second inner sheath layer. The communication cable is difficult in cracking, is not decomposed in water, and is tensile and anticorrosive; and the influence of mutual interference of signals on the using performance is reduced, the transmission property of the communication cable product is ensured, and the influence of signal interference and stretching on the using performance of the cable is greatly reduced.
Description
Technical field
The present invention relates to a kind of telecommunication cable, relate in particular to a kind of telecommunication cable with waterproof, anti-interference function.
Background technology
The structure of common single type telecommunication cable: its primary structure of the cable of pair twist structure is that copper conductor extrudes one deck insulation outward, stranding after the single line pair twist, the structure of polyolefin oversheath is adopted in the outside, the coaxial cable primary structure is that inner wire extrudes outward or the insulation of wrapped one deck, then adopt aluminium foil or braiding as the structure of polyolefin after outer conductor as oversheath, said structure limitation due to telecommunication cable, in exterior finish distributing system, automated detection system, cause that stretching is large, quality is unstable, the wiring is loaded down with trivial details, unreliable and affect serviceability.
Summary of the invention
The invention provides a kind of telecommunication cable with waterproof, anti-interference function, that this telecommunication cable has is not easy to crack, meet that water does not decompose, stretch-proof, the characteristics such as corrosion-resistant, has greatly increased cable special because of environment for use; Reduce the impact of signal phase mutual interference on serviceability, when guaranteeing telecommunication cable Transmission characteristic, greatly increased cable because signal disturbs, stretching affects the ability of serviceability.
For achieving the above object, the technical solution used in the present invention is: a kind of mixed type telecommunication cable with stretch-proof, anti-interference function comprises: steel conductor, copper spindle guide body, eight copper conductor and oversheath bodies that are coated with polyethylene layer; Described copper spindle guide external surface is coated with plastic insulating layer, and this plastic insulating layer outer surface is coated with wire sheathing, and the first inner restrictive coating is coated on described wire sheathing outer surface;
four pairs of described eight copper conductors stranded formation in twos are as the twisted wire of information communication pair, described four twisted pair wire centering the first twisted wires pair, the second twisted wire pair, the 3rd twisted wire to the 4th twisted wire to being arranged in order counterclockwise and stranded formation conduction cable core, the 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 all are coated with foil shielding layer to outer surface separately, one polyester belt is wrapped in described foil shielding layer outer surface, the second inner restrictive coating is coated on described polyester belt outer surface, described polyester belt and the second inner restrictive coating and four twisted pair wires between the gap in be filled with the packed layer that blocks water,
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, the first muscle section of company, second of this " people " font connecting portion connects muscle section and the 3rd muscle section of company is connected to respectively the described first sub-sheath, the second sub-sheath and the 3rd sub-sheath, the first sub-sheath is coated on described steel conductor outer surface, the second sub-sheath is coated on described the first inner restrictive coating outer surface, and the 3rd sub-sheath is coated on described the second inner restrictive coating outer surface;
The right pitch of described the first twisted wire is 15 ~ 15.5mm, and the right pitch of described the second twisted wire is 13.5 ~ 13.9mm, and the right pitch of described the 3rd twisted wire is 14.2 ~ 14.6mm, and the right pitch of described the 4th twisted wire is 12.7 ~ 13.1mm;
Adjacent segments apart from design formula is: 0.002＜∣
-
∣≤0.013,
The pitch design of being separated by formula is: 0.002＜∣
-
∣≤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.
Further improve technical scheme in technique scheme as follows:
1, in such scheme, the right pitch of described the first twisted wire is 15.2mm, and the right pitch of described the second twisted wire is 13.7mm, and the right pitch of described the 3rd twisted wire is 14.4mm, and the right pitch of described the 4th twisted wire is 12.9mm.
2, in such scheme, described four twisted pair wire strands form the conduction cable core, and this conduction cable core twisting pitch is that the 4th twisted wire is to 10 times of pitch.
3, in such scheme, described the first muscle section of company, second connects muscle section and the first adjacent angle of muscle section of company is 120 °.
4, in such scheme, described steel conductor and copper conductor be annealed PROCESS FOR TREATMENT all.
5, in such scheme, described foil shielding layer is comprised of laminated polyester film and the aluminium foil layer that is 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 ± 0.002 mm.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, the present invention has the mixed type telecommunication cable of stretch-proof, anti-interference function, both effectively solved the circumstance complication of cable in work progress, for example the wiring of cable brings many inconvenience in the power supply-distribution system of machine room and the distribution system in building, can produce certain electromagnetic field around during the cable operation, thereby the interference other system can cause the other problems such as equipment operation failure when serious; Also avoided pulling cable, have tensile strength and elongation preferably, both guaranteed to satisfy the self-supporting ability of cable, also solved the problem of cable phase mutual interference in running simultaneously, guaranteed the long-term stability of transmission characteristic, but have again the advantages such as the convenient Reusability of emergency maintenance, have obvious economic benefit and promotional value, the test of material rising-heat contracting-cold in the time of standing variation of ambient temperature, therefore can extend the useful life of cable, be difficult for being corroded, long service life.
2, the present invention has the mixed type telecommunication cable of stretch-proof, anti-interference function, broken through traditional strand to line after the circular configuration of stranding, effectively improve the surplus of communication cable cross-talk (NEXT, FEXT) index 1%, even also improved the 1dB surplus of loss (INSERTION LOSS), increase by 1.5% stability of characteristic impedance (IMPEDANCE), when guaranteeing the stable transmission performance of cable, increased the performance of the transmission electricity of copper cable simultaneously.
3, the present invention has the mixed type telecommunication cable of stretch-proof, anti-interference function, adopt specific strand to become core pitch and strand that line is made up to string pitch collocation and the cable core that specifically conducts electricity, reduced transmission of electric signals and produced the electromagnetic induction impact on its loop, greatly reduce the cross-talk of the communications cable, wherein the electric field of capacitive sensing generation has both positive and negative polarity, can cancel each other after adjacent two induction field stacks, reduce mutual capacitively coupled, take into account simultaneously other electric parameter, also avoided signal of telecommunication delay inequality to increase.
Description of drawings
Accompanying drawing 1 is mixed type telecommunication cable structural representation one of the present invention;
Accompanying drawing 2 is mixed type telecommunication cable structural representation two of the present invention.
In above accompanying drawing: 1, steel conductor; 2, copper spindle guide body; 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, wire sheathing; 7, the first inner restrictive coating; 8, conduction 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, the first muscle section of company; 122, the second muscle section of company; 123, the 3rd muscle section of company; 13, the packed layer that blocks water; 14, proof copper-wire braided screen.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment 1: a kind of mixed type telecommunication cable with stretch-proof, anti-interference function comprises: steel conductor 1, copper spindle guide body 2, eight copper conductor 3 and oversheath bodies 4 that are coated with polyethylene layer 31; Described copper spindle guide body 2 outer surfaces are coated with plastic insulating layer 5, and these plastic insulating layer 5 outer surfaces are coated with wire sheathing 6, the first inner restrictive coatings 7 and are coated on described wire sheathing 6 outer surfaces;
four pairs of described eight copper conductors 3 stranded formation in twos are as the twisted wire of information communication pair, described four twisted pair wire centering the first twisted wires are to 81, the second twisted wire is to 82, the 3rd twisted wire is arranged in order 84 counterclockwise to the 83 and the 4th twisted wire and stranded formation conduction cable core 8, the first twisted wire to the 81 and the 3rd twisted wire to the 83 and second twisted wire to the 82 and the 4th twisted wire to 84 alternately, described four twisted pair wires all are coated with foil shielding layer 9 to outer surface separately, one polyester belt 10 is wrapped in described foil shielding layer 9 outer surfaces, the second inner restrictive coating 11 is coated on described polyester belt 10 outer surfaces, described polyester belt 10 and the second inner restrictive coating 11 and four twisted pair wires between the gap in be filled with the packed layer 13 that blocks water,
described oversheath body 4 comprises the first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43 centers have one " people " font connecting portion 12, the first muscle section 121 of company of this " people " font connecting portion 12, the second muscle section 122 of company and the 3rd muscle section 123 of company are connected respectively to the described first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, the first sub-sheath 41 is coated on described steel conductor 1 outer surface, the second sub-sheath 42 is coated on described the first inner restrictive coating 7 outer surfaces, the 3rd sub-sheath 43 is coated on described the second inner restrictive coating 11 outer surfaces,
Described the first twisted wire is 15.2mm to 81 pitch, and described the second twisted wire is 13.7mm to 82 pitch, and described the 3rd twisted wire is 14.4mm to 83 pitch, and described the 4th twisted wire is 12.9mm to 84 pitch;
Adjacent segments apart from design formula is: 0.002＜∣
-
∣≤0.013,
The pitch design of being separated by formula is: 0.002＜∣
-
∣≤0.011;
Above-mentioned four twisted pair wire strands form conduction cable core 8, and these conduction cable core 8 twisting pitch are that the 4th twisted wire is to 10 times of 84 pitches.
Above-mentioned the first muscle section of company, second connects muscle section and the first adjacent angle of muscle section of company is 120 °.
Embodiment 2: a kind of mixed type telecommunication cable with stretch-proof, anti-interference function comprises: steel conductor 1, copper spindle guide body 2, eight copper conductor 3 and oversheath bodies 4 that are coated with polyethylene layer 31; Described copper spindle guide body 2 outer surfaces are coated with plastic insulating layer 5, and these plastic insulating layer 5 outer surfaces are coated with wire sheathing 6, the first inner restrictive coatings 7 and are coated on described wire sheathing 6 outer surfaces;
four pairs of described eight copper conductors 3 stranded formation in twos are as the twisted wire of information communication pair, described four twisted pair wire centering the first twisted wires are to 81, the second twisted wire is to 82, the 3rd twisted wire is arranged in order 84 counterclockwise to the 83 and the 4th twisted wire and stranded formation conduction cable core 8, the first twisted wire to the 81 and the 3rd twisted wire to the 83 and second twisted wire to the 82 and the 4th twisted wire to 84 alternately, described four twisted pair wires all are coated with foil shielding layer 9 to outer surface separately, one polyester belt 10 is wrapped in described foil shielding layer 9 outer surfaces, the second inner restrictive coating 11 is coated on described polyester belt 10 outer surfaces, described polyester belt 10 and the second inner restrictive coating 11 and four twisted pair wires between the gap in be filled with the packed layer 13 that blocks water,
described oversheath body 4 comprises the first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43 centers have one " people " font connecting portion 12, the first muscle section 121 of company of this " people " font connecting portion 12, the second muscle section 122 of company and the 3rd muscle section 123 of company are connected respectively to the described first sub-sheath 41, the second sub-sheath 42 and the 3rd sub-sheath 43, the first sub-sheath 41 is coated on described steel conductor 1 outer surface, the second sub-sheath 42 is coated on described the first inner restrictive coating 7 outer surfaces, the 3rd sub-sheath 43 is coated on described the second inner restrictive coating 11 outer surfaces,
Be provided with proof copper-wire braided screen 14 between the described second sub-sheath 42 and the first inner restrictive coating 7, both can not increase external diameter, can guarantee again the tractive effort of needs, thereby guaranteed the adhesive between the second sub-sheath 42 and the first inner restrictive coating 7, played humidification, have very large tensile strength, also can eliminate or reduce the stress of cable when mobile or twisting states, the useful life of improving cable; Secondly, further strengthened interference free performance.
Described the first twisted wire is 15.3mm to 81 pitch, and described the second twisted wire is 13.5mm to 82 pitch, and described the 3rd twisted wire is 14.6mm to 83 pitch, and described the 4th twisted wire is 13mm to 84 pitch;
Adjacent segments apart from design formula is: 0.002＜∣
-
∣≤0.013,
The pitch design of being separated by formula is: 0.002＜∣
-
∣≤0.011;
H1 is the first twisted wire to 81 pitch, and h2 is the second twisted wire to the 82 or the 4th twisted wire to 84 pitch, and h3 is the 3rd twisted wire to 83 pitch.
Above-mentioned four twisted pair wire strands form conduction cable core 8, and these conduction cable core 8 twisting pitch are that the 4th twisted wire is to 10 times of 84 pitches.
Above-mentioned foil shielding layer 9 is comprised of laminated polyester film and the aluminium foil layer that is 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 ± 0.002 mm; Above-mentioned the first muscle section of company, second connects muscle section and the first adjacent angle of muscle section of company is 120 °; Above-mentioned steel conductor 1 and copper conductor 3 be annealed PROCESS FOR TREATMENT all.
Foregoing is further described below.
The design of aluminum foil material
According to telecommunication cable standard and requirement, shielding is comprised of one deck single face clad aluminum foil and a drain wire, and the single face clad aluminum foil requires to see for details following table:
The specification requirement of single face 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, allows unidirectional sub-thread broken string length to be not more than 150mm, and trimmed is answered in the termination of breaking
The main performance index of finished cable
Conductor DC resistance (20 ℃) :≤9 6 Ω/km;
The characteristic impedance of paired cable (20 ℃): 100 ± 15 Ω;
The characteristic impedance of coaxial cable (20 ℃): 75 ± 15 Ω;
The insulation resistance of cable: 〉=10000 M Ω km.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow person skilled in the art scholar can understand content of the present invention and implement according to this, can not limit protection scope of the present invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. the telecommunication cable with waterproof, anti-interference function, is characterized in that: comprising: steel conductor (1), copper spindle guide body (2), eight copper conductor (3) and oversheath bodies (4) that are coated with polyethylene layer (31); Described copper spindle guide body (2) outer surface is coated with plastic insulating layer (5), and this plastic insulating layer (5) outer surface is coated with wire sheathing (6), and the first inner restrictive coating (7) is coated on described wire sheathing (6) outer surface;
four pairs of described eight copper conductors (3) stranded formation in twos are as the twisted wire of information communication pair, described four twisted pair wire centering the first twisted wires are to (81), the second twisted wire is to (82), the 3rd twisted wire is to (83) and the 4th twisted wire is arranged in order counterclockwise to (84) and stranded formation conduction cable core (8), the 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 all are coated with foil shielding layer (9) to outer surface separately, one polyester belt (10) is wrapped in described foil shielding layer (9) outer surface, the second inner restrictive coating (11) is coated on described polyester belt (10) outer surface, described polyester belt (10) and the second inner restrictive coating (11) and four twisted pair wires between the gap in be filled with the packed layer that blocks water (13),
described oversheath body (4) comprises the first sub-sheath (41), the second sub-sheath (42) and the 3rd sub-sheath (43), this first sub-sheath (41), the 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 section (121), the second muscle section (122) of company and the 3rd connects muscle section (123) and is connected respectively to the described first sub-sheath (41), the second sub-sheath (42) and the 3rd sub-sheath (43), the first sub-sheath (41) is coated on described steel conductor (1) outer surface, the second sub-sheath (42) is coated on described the first inner restrictive coating (7) outer surface, the 3rd sub-sheath (43) is coated on described the second inner restrictive coating (11) outer surface,
Described the first twisted wire is 15 ~ 15.5mm to the pitch of (81), and described the second twisted wire is 13.5 ~ 13.9mm to the pitch of (82), and described the 3rd twisted wire is 14.2 ~ 14.6mm to the pitch of (83), and described the 4th twisted wire is 12.7 ~ 13.1mm to the pitch of (84);
Adjacent segments apart from design formula is: 0.002＜∣
-
∣≤0.013,
The pitch design of being separated by formula is: 0.002＜∣
-
∣≤0.011;
H1 be the first twisted wire to the pitch of (81), h2 is the second twisted wire to (82) or the 4th twisted wire pitch to (84), h3 is that the 3rd twisted wire is to the pitch of (83).
2. mixed type telecommunication cable according to claim 1, it is characterized in that: described the first twisted wire is 15.2mm to the pitch of (81), described the second twisted wire is 13.7mm to the pitch of (82), described the 3rd twisted wire is 14.4mm to the pitch of (83), and described the 4th twisted wire is 12.9mm to the pitch of (84).
3. mixed type telecommunication cable according to claim 1 is characterized in that: described four twisted pair wire strands form conduction cable core (8), and this conduction cable core (8) twisting pitch is that the 4th twisted wire is to 10 times of (84) pitch.
4. the described telecommunication cable of any one according to claim 1 ~ 3, it is characterized in that: described foil shielding layer (9) is comprised of laminated polyester film and the aluminium foil layer that is positioned at its medial surface, described polyester film layer thickness is 0.020 ± 0.002mm, and described aluminium foil layer thickness is 0.014 ± 0.002 mm.
5. the described telecommunication cable of any one according to claim 1 ~ 3 is characterized in that: described first connects muscle section, second connects muscle section and first to connect the adjacent angle of muscle section is 120 °.
6. the described telecommunication cable of any one according to claim 1 ~ 3, it is characterized in that: described steel conductor (1) and copper conductor (3) be annealed PROCESS FOR TREATMENT all.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310088361.1A CN103165244B (en) | 2013-03-19 | 2013-03-19 | There is the telecommunication cable of waterproof, anti-interference function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310088361.1A CN103165244B (en) | 2013-03-19 | 2013-03-19 | There is the telecommunication cable of waterproof, anti-interference function |
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| CN103165244A true CN103165244A (en) | 2013-06-19 |
| CN103165244B CN103165244B (en) | 2016-01-13 |
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| CN103165244B (en) | 2016-01-13 |
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