CN103137265B - Have that tension is stretched, the mixed type telecommunication cable of anti-interference function - Google Patents
Have that tension is stretched, the mixed type telecommunication cable of anti-interference function Download PDFInfo
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- CN103137265B CN103137265B CN201310088582.9A CN201310088582A CN103137265B CN 103137265 B CN103137265 B CN 103137265B CN 201310088582 A CN201310088582 A CN 201310088582A CN 103137265 B CN103137265 B CN 103137265B
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Abstract
The present invention discloses a kind of has that tension is stretched, the mixed type telecommunication cable of anti-interference function, comprises steel conductor, copper axle conductor, eight copper conductors and oversheath body; Eight copper conductor stranded formation four between two are to the twisted wire pair as information communication; Described oversheath body comprises the first sub-sheath, the 2nd sub-sheath and the 3rd sub-sheath, this first sub-sheath, the 2nd sub-sheath and the 3rd sub-sheath center have one " people " font connection section, first sub-sheath is coated on described steel conductor outside surface, 2nd sub-sheath is coated on described first inner restrictive coating outside surface, and the 3rd sub-sheath is coated on described 2nd inner restrictive coating outside surface. Mixed type telecommunication cable of the present invention have not easy to crack, meet that water does not decompose, tension is stretched, the feature such as corrosion-resistant, considerably increase cable because of environment for use special; Reduce signal and mutually disturb the impact on use properties, ensure while telecommunication cable Transmission characteristic, considerably increase cable because of signal disturbing, stretching and affect the ability of use properties.
Description
Technical field
The present invention relates to a kind of telecommunication cable, particularly relate to and a kind of have that tension is stretched, the mixed type telecommunication cable of anti-interference function.
Background technology
The structure of common single type telecommunication cable: be extrude one layer of insulation outside copper conductor to its main structure of cable twisting structure, single line becomes cable to after strand, outside adopts the structure of polyolefine oversheath, the main structure of concentric cable is extrude outside interior conductor or wrapped one layer of insulation, then adopt aluminium foil or braiding as the structure of polyolefine after outer conductor as oversheath, owing to the said structure of telecommunication cable limits to, in outdoor finishing distributing system, automated detection system, cause stretch relatively big, quality unstable, it is loaded down with trivial details to connect up, unreliable and affect use properties.
Summary of the invention
The present invention provides a kind of and has that tension is stretched, the mixed type telecommunication cable of anti-interference function, this mixed type telecommunication cable have not easy to crack, meet the features such as water does not decompose, tension is stretched, corrosion-resistant, considerably increase cable because of environment for use special; Reduce signal and mutually disturb the impact on use properties, ensure while telecommunication cable Transmission characteristic, considerably increase cable because of signal disturbing, stretching and affect the ability of use properties.
For achieving the above object, the technical solution used in the present invention is: a kind of have that tension is stretched, the mixed type telecommunication cable of anti-interference function, comprising: steel conductor, copper axle conductor, eight copper conductor and the oversheath bodies that are coated with polyethylene layer; Described copper axle conductor outside surface is coated with plastic insulating layer, and this plastic insulating layer outside surface is coated with bonding braid, and the first inner restrictive coating is coated on described bonding braid outside 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 2nd 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 2nd twisted wire to the 4th twisted wire to alternately, respective outside surface is all coated with foil shielding layer by described four twisted pair wires, one polyester belt is wrapped in described foil shielding layer outside surface, and the 2nd inner restrictive coating is coated on described polyester belt outside surface;
Described oversheath body comprises the first sub-sheath, the 2nd sub-sheath and the 3rd sub-sheath, this first sub-sheath, the 2nd sub-sheath and the 3rd sub-sheath center have one " people " font connection section, the first of this " people " font connection section is even even even connected respectively to described first sub-sheath, the 2nd sub-sheath and the 3rd sub-sheath in muscle portion in muscle portion and the 3rd in muscle portion, the 2nd, first sub-sheath is coated on described steel conductor outside surface, 2nd sub-sheath is coated on described first inner restrictive coating outside surface, and the 3rd sub-sheath is coated on described 2nd inner restrictive coating outside surface;
Pitch with the 3rd twisted wire pair is greater than the 2nd twisted wire to the pitch with the 4th twisted wire pair by described first twisted wire, and the pitch of described first twisted wire pair is greater than the pitch of the 3rd twisted wire pair, and the pitch of described 2nd twisted wire pair is greater than the pitch of the 4th twisted wire pair;
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 pair, h2 be the 2nd twisted wire to or the pitch of the 4th twisted wire pair, h3 is the pitch of the 3rd twisted wire pair.
Improvement opportunity scheme further in technique scheme is as follows:
1, in such scheme, the pitch of described first twisted wire pair is 15 ~ 15.5mm, and the pitch of described 2nd twisted wire pair is 13.5 ~ 13.9mm, and the pitch of described 3rd twisted wire pair is 14.2 ~ 14.6mm, and the pitch of described 4th twisted wire pair is 12.7 ~ 13.1mm.
2, in such scheme, the pitch of described first twisted wire pair is 15.2mm, and the pitch of described 2nd twisted wire pair is 13.7mm, and the pitch of described 3rd twisted wire pair is 14.4mm, and the pitch of described 4th twisted wire pair is 12.9mm.
3, in such scheme, described four twisted pair wire strands and become conductive cable core, this conductive cable core twisting pitch is that the 4th twisted wire is to the 9 ~ 11 of pitch times.
4, in such scheme, even muscle portion and first company's adjacent angle in muscle portion are 120 �� in described first muscle portion of company, the 2nd
5, in such scheme, described steel conductor and all annealed art breading of copper conductor.
6, in such scheme, described foil shielding layer is made up of laminated polyester film and the aluminium foil layer being positioned at its side, and described polyester film layer thickness is 0.020 �� 0.002mm, and described aluminium foil layer thickness is 0.014 �� 0.002mm.
Owing to technique scheme is used, the present invention compared with prior art has following advantage:
1, the present invention has tension and stretches, the mixed type telecommunication cable of anti-interference function, both the circumstance complication of cable in construction process had effectively been solved, such as in the power distribution system in the power supply-distribution system and buildings of machine room, the wiring of cable brings many inconvenience, cable can produce certain electromagnetic field when running around, thus disturb other systems, the problems such as equipment operation failure can be caused time serious, avoid and pull cable, there is good tensile strength and unit elongation, both the self-bearing ability of cable is guaranteed to meet, also solve the problem of cable interference mutually in operational process simultaneously, ensure that the long-term stability of transport property, there is again emergency maintenance convenient, can the advantage such as Reusability, there is obvious economic benefit and promotional value, , the test of material rising-heat contracting-cold when can stand variation of ambient temperature, therefore the work-ing life of cable can be extended, not easily it is corroded, long service life.
2, the present invention has that tension is stretched, the mixed type telecommunication cable of anti-interference function, breach traditional strand to the circular configuration becoming cable 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 natural impedance (IMPEDANCE), simultaneously while guaranteeing the transmission performance that cable is stable, add the performance of the transmission electricity of copper cable.
3, the present invention has that tension is stretched, the mixed type telecommunication cable of anti-interference function, specific strand is adopted to become core pitch to be combined by line with strand 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 positive and negative electrode, can cancel each other after adjacent two induction electric field superpositions, reduce mutual capacitively coupled, having taken into account other electric parameter, it also avoid electrical signal time delay difference increases simultaneously.
Accompanying drawing explanation
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 axle conductor; 3, copper conductor; 31, polyethylene layer; 4, oversheath body; 41, the first sub-sheath; 42, the 2nd sub-sheath; 43, the 3rd sub-sheath; 5, plastic insulating layer; 6, bonding braid; 7, the first inner restrictive coating; 8, conductive cable core; 81, the first twisted wire pair; 82, the 2nd twisted wire pair; 83, the 3rd twisted wire pair; 84, the 4th twisted wire pair; 9, foil shielding layer; 10, polyester belt; 11, the 2nd inner restrictive coating; 12, " people " font connection section; 121, first connects muscle portion; 122, the 2nd connects muscle portion; 123, the 3rd connects muscle portion; 13, copper wire braiding screen layer.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment 1: a kind of have that tension is stretched, the mixed type telecommunication cable of anti-interference function, comprising: steel conductor 1, copper axle conductor 2, eight are coated with copper conductor 3 and the oversheath body 4 of polyethylene layer 31; Described copper axle conductor 2 outside surface is coated with plastic insulating layer 5, and this plastic insulating layer 5 outside surface is coated with bonding braid 6, and the first inner restrictive coating 7 is coated on described bonding braid 6 outside 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, the 2nd 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 the 2nd twisted wire to 82 and the 4th twisted wire to 84 alternately, respective outside surface is all coated with foil shielding layer 9 by described four twisted pair wires, one polyester belt 10 is wrapped in described foil shielding layer 9 outside surface, and the 2nd inner restrictive coating 11 is coated on described polyester belt 10 outside surface;
Described oversheath body 4 comprises the first sub-sheath 41, 2nd sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, 2nd sub-sheath 42 and the 3rd sub-sheath 43 center have one " people " font connection section 12, the first of this " people " font connection section 12 be muscle portion 121 even, 2nd connects muscle portion 122 and the 3rd is even connected respectively to described first sub-sheath 41 in muscle portion 123, 2nd sub-sheath 42 and the 3rd sub-sheath 43, first sub-sheath 41 is coated on described steel conductor 1 outside surface, 2nd sub-sheath 42 is coated on described first inner restrictive coating 7 outside surface, 3rd sub-sheath 43 is coated on described 2nd inner restrictive coating 11 outside surface,
Described first twisted wire to 81 and the 3rd twisted wire to 83 pitch be greater than the 2nd twisted wire to 82 and the 4th twisted wire to 84 pitch, described first twisted wire to 81 pitch be greater than the 3rd twisted wire to 83 pitch, described 2nd twisted wire to 82 pitch be greater than the 4th twisted wire to 84 pitch;
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 2nd twisted wire to 82 or the 4th twisted wire to 84 pitch, h3 be the 3rd twisted wire to 83 pitch.
The pitch of 81 is 15.2mm by above-mentioned first twisted wire, and the pitch of 82 is 13.7mm by described 2nd twisted wire, and the pitch of 83 is 14.4mm by described 3rd twisted wire, and the pitch of 84 is 12.9mm by described 4th twisted wire.
Above-mentioned four twisted pair wire strands and become conductive cable core 8, this conductive cable core 8 twisting pitch is that the 4th twisted wire is to the 10 of 84 pitches times.
Even muscle portion and first company's adjacent angle in muscle portion are 120 �� in above-mentioned first muscle portion of company, the 2nd.
Embodiment 2: a kind of have that tension is stretched, the mixed type telecommunication cable of anti-interference function, comprising: steel conductor 1, copper axle conductor 2, eight are coated with copper conductor 3 and the oversheath body 4 of polyethylene layer 31; Described copper axle conductor 2 outside surface is coated with plastic insulating layer 5, and this plastic insulating layer 5 outside surface is coated with bonding braid 6, and the first inner restrictive coating 7 is coated on described bonding braid 6 outside 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, the 2nd 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 the 2nd twisted wire to 82 and the 4th twisted wire to 84 alternately, respective outside surface is all coated with foil shielding layer 9 by described four twisted pair wires, one polyester belt 10 is wrapped in described foil shielding layer 9 outside surface, and the 2nd inner restrictive coating 11 is coated on described polyester belt 10 outside surface;
Described oversheath body 4 comprises the first sub-sheath 41, 2nd sub-sheath 42 and the 3rd sub-sheath 43, this first sub-sheath 41, 2nd sub-sheath 42 and the 3rd sub-sheath 43 center have one " people " font connection section 12, the first of this " people " font connection section 12 be muscle portion 121 even, 2nd connects muscle portion 122 and the 3rd is even connected respectively to described first sub-sheath 41 in muscle portion 123, 2nd sub-sheath 42 and the 3rd sub-sheath 43, first sub-sheath 41 is coated on described steel conductor 1 outside surface, 2nd sub-sheath 42 is coated on described first inner restrictive coating 7 outside surface, 3rd sub-sheath 43 is coated on described 2nd inner restrictive coating 11 outside surface,
Copper wire braiding screen layer 13 it is provided with between described 2nd sub-sheath 42 and the first inner restrictive coating 7, both external diameter can not have been increased, the tractive force needed can be ensured again, thus ensure that the adhesive between the 2nd sub-sheath 42 and the first inner restrictive coating 7, serve enhancement, there is very big tensile strength, it is also possible to eliminate or reduce the stress of cable when movement or twisting states, it is to increase the work-ing life of cable; Secondly, further enhancing anti-interference performance.
Described first twisted wire to 81 and the 3rd twisted wire to 83 pitch be greater than the 2nd twisted wire to 82 and the 4th twisted wire to 84 pitch, described first twisted wire to 81 pitch be greater than the 3rd twisted wire to 83 pitch, described 2nd twisted wire to 82 pitch be greater than the 4th twisted wire to 84 pitch;
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 2nd twisted wire to 82 or the 4th twisted wire to 84 pitch, h3 be the 3rd twisted wire to 83 pitch.
The pitch of 81 is 15.4mm by above-mentioned first twisted wire, and the pitch of 82 is 13.6mm by described 2nd twisted wire, and the pitch of 83 is 14.5mm by described 3rd twisted wire, and the pitch of 84 is 13mm by described 4th twisted wire.
Above-mentioned four twisted pair wire strands and become conductive cable core 8, this conductive cable core 8 twisting pitch is that the 4th twisted wire is to the 9 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 side, and described polyester film layer thickness is 0.020 �� 0.002mm, and described aluminium foil layer thickness is 0.014 �� 0.002mm; Even muscle portion and first company's adjacent angle in muscle portion are 120 �� in above-mentioned first muscle portion of company, the 2nd; Above-mentioned steel conductor 1 and all annealed art breading of copper conductor 3.
Foregoing is further described below.
The design of aluminum foil material
According to telecommunication cable standard and requirement, shielding is made up of one layer of one side clad aluminum foil and a drainage line, and one side clad aluminum foil requires to refer to following table:
The technical requirements of one side clad aluminum foil
Weave copper wire material used design
According to telecommunication cable standard and requirement, the braided material of armor layer can be single round 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 broken string termination
The salient features index of finished cable
Conductor DC resistance (20 DEG C) :��96 ��/km;
The natural impedance (20 DEG C) of paired cable: 100 �� 15 ��;
The natural impedance (20 DEG C) of concentric cable: 75 �� 15 ��;
The insulation resistance of cable: >=10000M �� km.
Above-described embodiment, only for the technical conceive of the present invention and feature are described, its object is to allow person skilled in the art can understand the 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 of the invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. one kind has that tension is stretched, the mixed type telecommunication cable of anti-interference function, it is characterised in that: comprising: steel conductor (1), copper axle conductor (2), eight copper conductor (3) and the oversheath bodies (4) that are coated with polyethylene layer (31); Described copper axle conductor (2) outside surface is coated with plastic insulating layer (5), and this plastic insulating layer (5) outside surface is coated with bonding braid (6), and the first inner restrictive coating (7) is coated on described bonding braid (6) outside surface;
Described eight copper conductors (3) stranded formation four between two is to the twisted wire pair as information communication, described four twisted pair wire centering first twisted wires are to (81), 2nd twisted wire is to (82), (84) are arranged in order and stranded formation conductive cable core (8) by the 3rd twisted wire by (83) and the 4th twisted wire counterclockwise, first twisted wire is to (81) and the 3rd twisted wire to (83) and the 2nd twisted wire to (82) and the 4th twisted wire to (84) alternately, respective outside surface is all coated with foil shielding layer (9) by described four twisted pair wires, one polyester belt (10) is wrapped in described foil shielding layer (9) outside surface, 2nd inner restrictive coating (11) is coated on described polyester belt (10) outside surface,
Described oversheath body (4) comprises the first sub-sheath (41), 2nd sub-sheath (42) and the 3rd sub-sheath (43), this first sub-sheath (41), 2nd sub-sheath (42) and the 3rd sub-sheath (43) center have one " people " font connection section (12), the first of this " people " font connection section (12) be muscle portion (121) even, 2nd company muscle portion (122) and the 3rd connects muscle portion (123) and is connected respectively to described first sub-sheath (41), 2nd sub-sheath (42) and the 3rd sub-sheath (43), first sub-sheath (41) is coated on described steel conductor (1) outside surface, 2nd sub-sheath (42) is coated on described first inner restrictive coating (7) outside surface, 3rd sub-sheath (43) is coated on described 2nd inner restrictive coating (11) outside surface,
The pitch of (83) is greater than the 2nd twisted wire to (82) and the 4th twisted wire to the pitch of (84) by (81) and the 3rd twisted wire by described first twisted wire, the pitch of (81) is greater than the 3rd twisted wire to the pitch of (83) by described first twisted wire, and the pitch of (82) is greater than the 4th twisted wire to the pitch of (84) by described 2nd twisted wire;
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 the pitch of (81), h2 is the 2nd 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).
2. mixed type telecommunication cable according to claim 1, it is characterized in that: the pitch of (81) is 15 ~ 15.5mm by described first twisted wire, the pitch of (82) is 13.5 ~ 13.9mm by described 2nd twisted wire, the pitch of (83) is 14.2 ~ 14.6mm by described 3rd twisted wire, and the pitch of (84) is 12.7 ~ 13.1mm by described 4th twisted wire.
3. mixed type telecommunication cable according to claim 2, it is characterized in that: the pitch of (81) is 15.2mm by described first twisted wire, the pitch of (82) is 13.7mm by described 2nd twisted wire, the pitch of (83) is 14.4mm by described 3rd twisted wire, and the pitch of (84) is 12.9mm by described 4th twisted wire.
4. mixed type telecommunication cable according to any one of claim 1 ~ 3, it is characterised in that: described four twisted pair wire strands and become conductive cable core (8), this conductive cable core (8) twisting pitch is that the 4th twisted wire is to the 9 ~ 11 of (84) times.
5. mixed type telecommunication cable according to any one of claim 1 ~ 3, 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 side, described polyester film layer thickness is 0.020 �� 0.002mm, and described aluminium foil layer thickness is 0.014 �� 0.002mm.
6. mixed type telecommunication cable according to any one of claim 1 ~ 3, it is characterised in that: described first even muscle portion, the 2nd even muscle portion and first even the adjacent angle in muscle portion be 120 ��.
7. mixed type telecommunication cable according to any one of claim 1 ~ 3, it is characterised in that: described steel conductor (1) and all annealed art breading of copper conductor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310088582.9A CN103137265B (en) | 2013-03-19 | 2013-03-19 | Have that tension is stretched, the mixed type telecommunication cable of anti-interference function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310088582.9A CN103137265B (en) | 2013-03-19 | 2013-03-19 | Have that tension is stretched, the mixed type telecommunication cable of anti-interference function |
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| Publication Number | Publication Date |
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| CN103137265A CN103137265A (en) | 2013-06-05 |
| CN103137265B true CN103137265B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310088582.9A Active CN103137265B (en) | 2013-03-19 | 2013-03-19 | Have that tension is stretched, the mixed type telecommunication cable of anti-interference function |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3852702B2 (en) * | 2003-11-20 | 2006-12-06 | 西日本電線株式会社 | Optical fiber / metal composite drop cable |
| CN202307263U (en) * | 2011-10-20 | 2012-07-04 | 杭州东兴电讯材料有限公司 | Flame-retardant and water-proof aluminum foil |
| CN102364585B (en) * | 2011-10-25 | 2012-11-28 | 江苏亨通线缆科技有限公司 | Low-voltage remote power supply cable for high-speed Ethernet switch |
| CN203150300U (en) * | 2013-03-19 | 2013-08-21 | 江苏亨通线缆科技有限公司 | Hybrid communication cable with tensile and anti-interference functions |
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