CN203134457U - Bay coaxial cable - Google Patents
Bay coaxial cable Download PDFInfo
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- CN203134457U CN203134457U CN 201220687014 CN201220687014U CN203134457U CN 203134457 U CN203134457 U CN 203134457U CN 201220687014 CN201220687014 CN 201220687014 CN 201220687014 U CN201220687014 U CN 201220687014U CN 203134457 U CN203134457 U CN 203134457U
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Abstract
The utility model relates to a bay coaxial cable. An internal conductor is wrapped by an extruded high-pressure polyethylene insulating layer, and outer conductors are uniformly woven on the periphery of the high-pressure polyethylene insulating layer. Two layers of polyester film bands are wrapped on the periphery of the outer conductors in opposite directions, and the polyester film bands are sequentially wrapped by an asphalt coat, a first dipping hemp rope lining, a second asphalt coat, a copper alloy wire armored layer, a third asphalt coat, a second dipping hemp rope lining, a fourth asphalt coat, an aluminized magnesium alloy steel wire armored layer, a fifth asphalt coat, a first dipping hemp twine layer, a sixth asphalt coat, a second dipping hemp twine layer, a seventh asphalt coat and a plastic film anti-adhesive layer. The cable is stable in structure and excellent in waterproof, corrosion-resistant and tensile performance and ensures stable signal transmission under water impact.
Description
Technical field
The utility model relates to a kind of telecommunication cable, particularly seabed, a kind of shallow sea coaxial cable.
Background technology
Development and use along with marine energy, submarine cable as seabed signal transmission current-carrying equipment uses more and more, specification requirement is also more and more higher, especially require cable machinery physical property and electric property excellence, have and guarantee that under sea water immersion impacts excellent signal transmission performance, water-impervious, seawater corrosion resistance, tension drag mechanical performance, long service life, the reliability height.Common telecommunication cable is used for the seabed or because own wt gentlier can cause cable bad, signal attenuation serious because seawater impacts, or causes the cable tension to drag stressed damage easily too greatly because own wt is heavier; The general selection of prior art is arranged together the compound cable of formation to telecommunication cable with power cable, though this kind structure has been guaranteed the structural safety of telecommunication cable, but the highfield that causes power cable easily impacts the signal transmission of telecommunication cable, and do not need occasion that power cable only needs telecommunication cable as adopting then serious waste of resources of composite cable for some, do not adopt composite cable to cause telecommunication cable to the bad adaptability of environment again easily.
The utility model content
The purpose of this utility model is; overcome problems of the prior art; seabed, a kind of shallow sea coaxial cable is provided; Stability Analysis of Structures, weight are suitable, water-impervious, seawater corrosion resistance, tension are dragged good mechanical property, it is good to meet the water slug stable signal transmission, can be used between continent and the offshore island seabed, shallow sea the situation comparatively section of the special mechanical protection of complicated needs or the liaison at seabeach.
For realizing above purpose, seabed, a kind of shallow sea provided by the utility model coaxial cable, inner wire is extruded with high pressure polyethylene insulated layer outward, the periphery of described high pressure polyethylene insulated layer evenly is woven with outer conductor, the periphery of described outer conductor is surrounded with two layers polyester film band with opposite direction, the periphery of described mylar tape is coated with the first bitumen coated layer, the periphery of the described first bitumen coated layer evenly is woven with the first dipping rope made of hemp lining, the periphery of the described first dipping rope made of hemp lining is coated with the second bitumen coated layer, the periphery of the described second bitumen coated layer closely is enclosed with the copper alloy wire armour with concentric strand around mode, the periphery of described copper alloy wire armour is coated with the 3rd bitumen coated layer, the periphery of described the 3rd bitumen coated layer evenly is woven with the second dipping rope made of hemp lining, the periphery of the described second dipping rope made of hemp lining is coated with the 4th bitumen coated layer, the periphery of described the 4th bitumen coated layer closely is enclosed with the magnesium alloy steel wire armour layer of aluminizing with concentric strand around mode, described periphery of aluminizing magnesium alloy steel wire armour layer is coated with the 5th bitumen coated layer, the periphery of described the 5th bitumen coated layer evenly is surrounded with the first dipping sack belt, the periphery of the described first dipping sack belt is coated with the 6th bitumen coated layer, the periphery of described the 6th bitumen coated layer evenly is surrounded with the second dipping sack belt, the periphery of the described second dipping sack belt is coated with the 7th bitumen coated layer, and the periphery of described the 7th bitumen coated layer is surrounded with the anti-adhesive linkage of plastic film.
With respect to prior art, the utility model has been obtained following beneficial effect: (1) inner wire adopts single solid soft copper conductor can eliminate the big drawback of signal attenuation that in the past adopted stranded copper wire to bring as conductor, be conducive to stable signal transmission, guaranteed the natural attenuation attenuatingization in the cable running.(2) high pressure polyethylene insulated layer structure is closely knit, density is little, mechanical strength is high, electrical insulation properties is good, the big drawback of signal attenuation that conductor adopts single solid circles copper conductor to eliminate to adopt stranded copper wire to bring as conductor in the past, be conducive to stable signal transmission, guaranteed the natural attenuation attenuatingization in the cable running.(3) outer conductor evenly is woven in the periphery of high pressure polyethylene insulated layer, and its smooth outer surface, smooth helps stable signal transmission.(4) mylar tape is overlapping wrappedly can wrap cable core, and it is loose to have avoided the stranding cable core to take place on the one hand, and polyester film has the moistureproof impregnability of excellent water resistance simultaneously, and can favourable protection insulation making moist insulation reduces.(5) dipping rope made of hemp lining is well isolated metal armouring layer and restrictive coating or bitumen coated layer, weakens the defectives such as burr that may exist on the internal compressing power of its outer layer metal armouring and the armouring silk damage is caused in inside; Rope made of hemp braiding has the slit, and each single rope made of hemp is independent of each other, and can reduce the stress in the cable bending, strengthens the toughness of cable; The mechanical strength height of the dipping rope made of hemp, pliability is good, and the deformation with excellence is restorative, can bear very big axial force, and vertical tension that can greatly strengthen cable is dragged performance.(6) pitch has good meltbility and processing performance, is convenient to evenly be coated in the cable core periphery, and especially the asphalt waterproofing excellent performance is corrosion-resistant, can prevent that outside seawater is penetrated into cable inside after experience is long-time, causes cable operation hidden danger.(7) the copper alloy wire armour both can be every magnetic, and the loss of avoiding the eddy current magnetic hysteresis to cause increases ampacity, mechanical strength is bigger than copper again, cost is then cheap than copper, and has excellent anti-seawater corrosion performance, benefits for the long-term security operation of cable.(8) the magnesium alloy steel wire armour layer of aluminizing can strengthen the mechanical resistance tensile strength of cable well, and the protection cable is not mechanically damaged, and has excellent anti-seawater corrosion performance, provides mechanical protection to it in the cable time limit in useful life.(9) the mechanical strength height of dipping sack belt, pliability is good, and the deformation with excellence is restorative, and self has water resistance, twine the back denser, water-swellable can stop seawater further to enter, and can closely wrap up cable, can bear very big radial load, adopt the double-deck lateral stressed performance that can strengthen cable, make the cable resistant to salt water impact, dipping sack belt formed buffer strip when external force impacted to cable, weakened inner stressed.Bitumen coated layer generation fusion adhesion caused between the adjacent cable and bonds when (10) the anti-adhesive linkage of plastic film can prevent high temperature production or construction operation, influenced operation.
As preferred version of the present utility model, described inner wire is the solid soft copper conductor of 4.25mm diameter, the nominal thickness of described high pressure polyethylene insulated layer be 5.5mm and minimum thickness be not less than nominal thickness 90%, maximum ga(u)ge is not more than 110% of nominal thickness, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.Inner wire adopts single solid soft copper conductor can eliminate the big drawback of signal attenuation that in the past adopted stranded copper wire to bring as conductor, is conducive to stable signal transmission, has guaranteed the natural attenuation attenuatingization in the cable running; 20 ℃ of inner wire D.C. resistances of this coaxial cable are not more than 1.3 Ω/km, 20 ℃ of outer conductor D.C. resistances are not more than 0.85 Ω/km, insulation resistance is not less than 50000 M Ω km, mutual capacitance is not more than 0.105 μ F/km, 50Hz alternating voltage test wire between 5000V/5min do not puncture, natural attenuation (60kHz and 228kHz) is not more than 1.129dB/km, and characteristic impedance (60kHz and 228kHz) is 52 ± 3 Ω.
As preferred version of the present utility model, described outer conductor adopts nine soft flat type copper wires evenly to be woven in outside the inner wire insulation, every described soft flat type copper wire wide * thick be 5.1mm * 0.5mm.This outer conductor smooth outer surface, smooth helps stable signal transmission.
As preferred version of the present utility model, the nominal thickness of described mylar tape is 0.04mm; The described first dipping rope made of hemp lining and the second dipping rope made of hemp lining are formed by the concentric closely braiding of the impregnated cable rope made of hemp of 2.5mm respectively.
As preferred version of the present utility model, the described first bitumen coated layer, the second bitumen coated layer, the 3rd bitumen coated layer, the 4th bitumen coated layer, the 5th bitumen coated layer, the 6th bitumen coated layer and the 7th bitumen coated layer adopt low temperature-20 ℃ not chap respectively, and 90 ℃ of bitumen coated of not dripping of high temperature form.
As preferred version of the present utility model, the diameter of the copper alloy wire of described copper alloy wire armour is 4.0 ± 0.03 mm, and raw material components and weight content are as follows, copper: iron: lead: zinc=(89.0 ~ 91.0): (0.01 ~ 0.05): (0.01 ~ 0.05): 10; Described diameter of aluminizing magnesium alloy steel wire armour layer is 6.0 ± 0.03 mm; Described copper alloy wire armour and described direction of lay of aluminizing magnesium alloy steel wire armour layer are left-hand.This copper alloy wire armour both can be every magnetic, and the loss of avoiding the eddy current magnetic hysteresis to cause increases ampacity, and mechanical strength is bigger than copper again, and cost is then cheap than copper, and have excellent anti-seawater corrosion performance, benefits for the long-term security operation of cable; This magnesium alloy steel wire armour layer mechanical resistance tensile strength height of aluminizing can protect cable not to be mechanically damaged, and has excellent anti-seawater corrosion performance.
As preferred version of the present utility model, the described first dipping sack belt and the second dipping sack belt are overlapping being entwined of impregnated cable sack band of 2.0mm by thickness respectively, and both winding directions are opposite.Two-layer reverse acting spiral twines and can guarantee the stable of structure, has comprehensive water resistance as the outer protection layer of cable.
As preferred version of the present utility model, the periphery of the anti-adhesive linkage of described plastic film is coated with the talc slurry layer.The talc slurry layer can reduce the frictional force between the cable appearance, prevents that cable outer layer is bonding mutually.
Description of drawings
Fig. 1 is the structural representation that coaxial cable is used in seabed, the utility model shallow sea.
Among the figure: 1. inner wire; 2. high pressure polyethylene insulated layer; 3. outer conductor; 4. mylar tape; 5. the first bitumen coated layer; 6. first floods rope made of hemp lining; 7. the second bitumen coated layer; 8. copper alloy wire armour; 9. the 3rd bitumen coated layer; 10. second floods rope made of hemp lining; 11. the 4th bitumen coated layer; The magnesium alloy steel wire armour layer 12. aluminize; 13. the 5th bitumen coated layer; 14. the first dipping sack belt; 15. the 6th bitumen coated layer; 16. the second dipping sack belt; 17. the 7th bitumen coated layer; 18. plastic film is prevented adhesive linkage.
Embodiment
Make successively according to the following steps with coaxial cable in seabed, the utility model shallow sea: (1) extrudes the high pressure polyethylene insulated layer that nominal thickness is 5.5mm outside diameter is the solid soft copper conductor of 4.25mm, the minimum thickness of high pressure polyethylene insulated layer is not less than 90% of nominal thickness, maximum ga(u)ge is not more than 110% of nominal thickness, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.(2) the periphery of described high pressure polyethylene insulated layer adopt nine wide * thick be the even braided outer conductor of soft flat type copper wire of 5.1mm * 0.5mm.(3) in the periphery of described outer conductor with the wrapped two layers polyester film of opposite direction band, the nominal thickness of mylar tape is 0.04mm, applies the first bitumen coated layer in the periphery of described mylar tape.(4) periphery at the first bitumen coated layer adopts the impregnated cable rope made of hemp of 2.5mm closely to weave the first dipping rope made of hemp lining with one heart, periphery at the first dipping rope made of hemp lining applies the second bitumen coated layer, periphery at the second bitumen coated layer is closely wrapped up the copper alloy wire armour with concentric strand around mode, the diameter of the copper alloy wire of copper alloy wire armour is 4.0 ± 0.03 mm, direction of lay is left-hand, and raw material components and weight content are as follows, copper: iron: lead: zinc=(89.0 ~ 91.0): (0.01 ~ 0.05): (0.01 ~ 0.05): 10.(5) periphery at the copper alloy wire armour applies the 3rd bitumen coated layer, adopt the concentric closely wrapped second dipping rope made of hemp lining of the impregnated cable rope made of hemp of 2.5mm in the periphery of the 3rd bitumen coated layer, periphery at the second dipping rope made of hemp lining applies the 4th bitumen coated layer, periphery at the 4th bitumen coated layer is closely wrapped up the magnesium alloy steel wire armour layer of aluminizing with concentric strand around mode, the diameter of magnesium alloy steel wire armour layer of aluminizing is 6.0 ± 0.03 mm, and direction of lay is left-hand.(6) periphery at the magnesium alloy steel wire armour layer of aluminizing applies the 5th bitumen coated layer, periphery employing thickness at the 5th bitumen coated layer is the overlapping first dipping sack belt that is wound in of impregnated cable sack band of 2.0mm, periphery at the first dipping sack belt applies the 6th bitumen coated layer, periphery employing thickness at the 6th bitumen coated layer is the overlapping second dipping sack belt that is wound in of impregnated cable sack band of 2.0mm, and the winding direction of the second dipping sack belt is opposite with the first dipping sack belt.(7) periphery at the second dipping sack belt applies the 7th bitumen coated layer, and at the anti-adhesive linkage of the wrapped plastic film of the periphery of the 7th bitumen coated layer, the periphery of the anti-adhesive linkage of plastic film applies the talc slurry layer.
In the above step, the first bitumen coated layer, the second bitumen coated layer, the 3rd bitumen coated layer, the 4th bitumen coated layer, the 5th bitumen coated layer, the 6th bitumen coated layer and the 7th bitumen coated layer adopt low temperature-20 ℃ not chap respectively, and 90 ℃ of bitumen coated of not dripping of high temperature form.
The above finished cable of making is carried out electrical performance test, and the result is as follows:
Pilot project | Technical indicator |
20 ℃ of inner wire D.C. resistances | ≤1.3Ω/km |
20 ℃ of outer conductor D.C. resistances | ≤0.85Ω/km |
Insulation resistance | ≥50000 MΩ·km |
Mutual capacitance | ≤0.105μF/km |
The test of 50Hz alternating voltage | 5000V/5min does not puncture |
Natural attenuation (60kHz and 228kHz) | ≤1.129dB/km |
Characteristic impedance (60kHz and 228kHz) | 52±3Ω |
The above only is the preferable possible embodiments of the utility model, and is non-so limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.
Claims (7)
1. seabed, shallow sea coaxial cable, it is characterized in that: inner wire is extruded with high pressure polyethylene insulated layer outward, the periphery of described high pressure polyethylene insulated layer evenly is woven with outer conductor, the periphery of described outer conductor is surrounded with two layers polyester film band with opposite direction, the periphery of described mylar tape is coated with the first bitumen coated layer, the periphery of the described first bitumen coated layer evenly is woven with the first dipping rope made of hemp lining, the periphery of the described first dipping rope made of hemp lining is coated with the second bitumen coated layer, the periphery of the described second bitumen coated layer closely is enclosed with the copper alloy wire armour with concentric strand around mode, the periphery of described copper alloy wire armour is coated with the 3rd bitumen coated layer, the periphery of described the 3rd bitumen coated layer evenly is woven with the second dipping rope made of hemp lining, the periphery of the described second dipping rope made of hemp lining is coated with the 4th bitumen coated layer, the periphery of described the 4th bitumen coated layer closely is enclosed with the magnesium alloy steel wire armour layer of aluminizing with concentric strand around mode, described periphery of aluminizing magnesium alloy steel wire armour layer is coated with the 5th bitumen coated layer, the periphery of described the 5th bitumen coated layer evenly is surrounded with the first dipping sack belt, the periphery of the described first dipping sack belt is coated with the 6th bitumen coated layer, the periphery of described the 6th bitumen coated layer evenly is surrounded with the second dipping sack belt, the periphery of the described second dipping sack belt is coated with the 7th bitumen coated layer, and the periphery of described the 7th bitumen coated layer is surrounded with the anti-adhesive linkage of plastic film.
2. seabed, shallow sea according to claim 1 coaxial cable, it is characterized in that, described inner wire is the solid soft copper conductor of 4.25mm diameter, the nominal thickness of described high pressure polyethylene insulated layer be 5.5mm and minimum thickness be not less than nominal thickness 90%, maximum ga(u)ge is not more than 110% of nominal thickness, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.
3. seabed, shallow sea according to claim 1 coaxial cable is characterized in that, described outer conductor adopts nine soft flat type copper wires evenly to be woven in outside the inner wire insulation, every described soft flat type copper wire wide * thick be 5.1mm * 0.5mm.
4. seabed, shallow sea according to claim 1 coaxial cable is characterized in that, the nominal thickness of described mylar tape is 0.04mm; The described first dipping rope made of hemp lining and the second dipping rope made of hemp lining are formed by the concentric closely braiding of the impregnated cable rope made of hemp of 2.5mm respectively.
5. seabed, shallow sea according to claim 1 coaxial cable, it is characterized in that, the described first bitumen coated layer, the second bitumen coated layer, the 3rd bitumen coated layer, the 4th bitumen coated layer, the 5th bitumen coated layer, the 6th bitumen coated layer and the 7th bitumen coated layer adopt low temperature-20 ℃ not chap respectively, and 90 ℃ of bitumen coated of not dripping of high temperature form.
6. seabed, shallow sea according to claim 1 coaxial cable is characterized in that, the described first dipping sack belt and the second dipping sack belt are overlapping being entwined of impregnated cable sack band of 2.0mm by thickness respectively, and both winding directions are opposite.
7. seabed, shallow sea according to claim 1 coaxial cable is characterized in that, the periphery of the anti-adhesive linkage of described plastic film is coated with the talc slurry layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220687014 CN203134457U (en) | 2012-12-13 | 2012-12-13 | Bay coaxial cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220687014 CN203134457U (en) | 2012-12-13 | 2012-12-13 | Bay coaxial cable |
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CN203134457U true CN203134457U (en) | 2013-08-14 |
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CN 201220687014 Withdrawn - After Issue CN203134457U (en) | 2012-12-13 | 2012-12-13 | Bay coaxial cable |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102969074A (en) * | 2012-12-13 | 2013-03-13 | 江苏远洋东泽电缆股份有限公司 | Coaxial cable for use in shallow sea bed and manufacturing method thereof |
WO2016008377A1 (en) * | 2014-07-16 | 2016-01-21 | 中天科技海缆有限公司 | Environment-friendly anti-marine-borer double-steel-wire armored optical fiber composite submarine cable |
CN106448856A (en) * | 2016-11-29 | 2017-02-22 | 重庆泰山电缆有限公司 | Double-layer reverse high-strength aluminum alloy armored ocean cable |
-
2012
- 2012-12-13 CN CN 201220687014 patent/CN203134457U/en not_active Withdrawn - After Issue
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102969074A (en) * | 2012-12-13 | 2013-03-13 | 江苏远洋东泽电缆股份有限公司 | Coaxial cable for use in shallow sea bed and manufacturing method thereof |
CN102969074B (en) * | 2012-12-13 | 2015-04-29 | 江苏远洋东泽电缆股份有限公司 | Coaxial cable for use in shallow sea bed and manufacturing method thereof |
WO2016008377A1 (en) * | 2014-07-16 | 2016-01-21 | 中天科技海缆有限公司 | Environment-friendly anti-marine-borer double-steel-wire armored optical fiber composite submarine cable |
CN106448856A (en) * | 2016-11-29 | 2017-02-22 | 重庆泰山电缆有限公司 | Double-layer reverse high-strength aluminum alloy armored ocean cable |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20150429 |