CN204904875U - Fire -retardant digital communication cable of high frequency for naval vessel - Google Patents
Fire -retardant digital communication cable of high frequency for naval vessel Download PDFInfo
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- CN204904875U CN204904875U CN201520520557.8U CN201520520557U CN204904875U CN 204904875 U CN204904875 U CN 204904875U CN 201520520557 U CN201520520557 U CN 201520520557U CN 204904875 U CN204904875 U CN 204904875U
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Abstract
The utility model discloses a general cable of the fire -retardant digit of high frequency for the naval vessel, separate the frame including the cable core and the cross of filling in the cable core, four couple of constituting the cable core is located four separated region that the frame is separated to the cross respectively to the group the outside of cable core from the lining outwards in proper order the cladding have waterproof layer, internal shield layer, interior protective layer, external shielding layer and external coating, be equipped with the earial drainage line between waterproof layer and the internal shield layer. To the group by two insulated conductors each other the transposition form, be 12mm -16mm to the length of lay of group. Four couple of cable core has different length of lay to the group. This cable is simple structure not only, and cable core stable in structure can satisfy demands such as naval vessel electronic information transmission, and it is little to have a decay, and shielding property is good, and the interference killing feature is strong, signal transmission characteristics such as reliable and stable.
Description
Technical field
The utility model relates to a kind of high-frequency digital telecommunication cable, particularly relates to a kind of high-frequency digital telecommunication cable for naval vessel digital communication system.
Background technology
Along with the development of society, digital communication is stepped into information, digital times, network service science and technology with unprecedented speed to more deeply, widely field development, this just requires that cable for digital communication has higher transmission speed, wider transmission bandwidth, with realize information quick, accurately transmit.
Modern Ships has a large amount of electronic equipments, the transmission information amount of interior communication network system is also sharply increasing, transmission speed and the transmission security of its numeral are also more and more higher, not only require that warship telecommunication cable has good anti-interference, anti-cross-talk performance, and the electrical performance indexes such as reasonable impedance and antidamping will be had.Existing warship cable for digital communication mostly adopts four to the unmasked strand cable to line group structure, and it eight insulated single wires is twisted between two equably four to line group, then by this four couple to line group twisted synthesizing cable, finally squeeze into oversheath and make.This cable the relative position between line group is only fixed by cable jacket, at cable laying tractive, bend, especially relatively narrow and small in locus, naval vessel, bend, extrude unavoidably, the relative position of line group can be subjected to displacement and change, then cause displacement and the change of relative position, cause the change of construction of cable parameter and electrical property.And being laid in the less cable in this space, naval vessel, its electrical property such as fire resistance, shielding properties more easily wrecks, and makes telecommunication cable can not meet the requirement of naval vessel high-frequency digital communication and safe transmission.
Utility model content
For the above-mentioned deficiency existing for prior art, technical problem to be solved in the utility model is to provide a kind of naval vessel high-frequency fire-retardant cable for digital communication, not only cable conductor Stability Analysis of Structures is reliable for it, and has good shielding properties, fire resistance and higher antijamming capability.
In order to solve the problems of the technologies described above, naval vessel of the present utility model high-frequency fire-retardant cable for digital communication, comprise cable core and be filled in the cross separation frame in cable core, four couple forming cable core lays respectively in four separated regions of cross separation frame to line group, outwards watertight composition, internal shield, inner protective layer is coated with successively, outer shielding layer and external protection from inner in the outside of described cable core; Earial drainage line is provided with between described watertight composition and internal shield.
In said structure, due to cable core four couples to line group respectively position in four separated regions of cross separation frame, this structure when ensureing the outside diameter of cable, the distance between increasing line group, the support fixation of separation frame, makes again to seem especially firmly stable to line group position.The displacement vibration to line group can not be formed, the construction of cable can keep the location status of robust, separation frame also plays and prevents mutually nested between line group simultaneously, avoid the mutual intrusion interference to line group, this reliable and stable version ensure that the stability of cable parameters, the operating frequency of cable is improved, and data transmission bauds is accelerated.Again owing to being coated with watertight composition at cable conductor, effectively stop seawater and steam to invade to cable core, avoid seawater intrusion on the impact of cable transmission performance and destruction, be more suitable for safe and reliable use in ships environment.Also owing to adopting double shield layer and two protective layer structure in the utility model; not only solve the electromagnetic interference problem of the inside and outside of cable; effectively improve overall anti-electromagnetic interference capability and the cross-talk resistant performance of cable; avoid the error code phenomenon in transfer of data; and two protective layer structure had both made cable core and screen not by the damage of external force; cable is made to have good sealing and higher mechanical strength; the intrusion of moisture, corrosive gas and moisture can be prevented again further, cable can also be made from the direct damage of external force.Be arranged at the earial drainage line between watertight composition and internal shield, both there is break alarm function, the equipotential of each section of cable can be ensured again, be conducive to improving the performances such as cable is anti-interference, cross-talk.
Preferred implementation of the present utility model, describedly forms by two insulated single wires are mutually stranded line group, is 12mm-16mm to the twisting pitch of line group.Four couple of described cable core has different twisting pitch to line group.Control, to the structure such as or not line group pitch range and phase adjacency pair line group pitch, not only to ensure that cable resistance performance, also effectively can reduce the resonance inductive effects between line pair, reduce Signal transmissions noise.
Preferably, the twisting pitch of described cable core is 80mm-120mm.
Preferably, the polyester belt of described watertight composition to be thickness be 0.02mm drags covering.
Preferably, described internal shield is plastic-aluminum combined layer, and the thickness of this internal shield is 0.07mm.
Preferably, described earial drainage line is a tinned wird arranged along cable length direction.
Preferably, described outer shielding layer is tincopper fuse wire braided armor.
Preferably, described inner protective layer and external protection are low smoke halogen-free flame-retardant polyolefin protective layer.
Preferably, described cross separation frame separates the mutual square crossing setting of fin.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model naval vessel high-frequency fire-retardant cable for digital communication is described further.
Fig. 1 is the cross section structure schematic diagram of a kind of execution mode of the utility model naval vessel high-frequency fire-retardant cable for digital communication.
In figure, 1-cable core, 2-to line group, 21-insulating layer of conductor, 22-conductor, 3-cross separation frame, 4-watertight composition, 5-internal shield, 6-inner protective layer, 7-outer shielding layer, 8-external protection, 9-earial drainage line.
Embodiment
The high-frequency fire-retardant cable for digital communication of naval vessel as shown in Figure 1, the cable core 1 of cable forms to line group 2 is stranded by four, and the twisting pitch of cable core 1 is 100mm, also can select in 80mm-120mm.Every a pair line group 2 forms by two insulated single wires are mutually stranded, and insulated single wire is made up of conductor 22 and the insulating layer of conductor 21 be coated on conductor 22.Conductor 22 for diameter be the copper wire of 0.57mm, it is between 25%-27% that the percentage elongation of conductor 22 controls, and the thickness of insulating layer of conductor 21 is 0.31mm, and the concentricity of insulating layer of conductor 21 is not less than 99%.Four pairs of twisting pitch to line group 2 are all not identical, but to the twisting pitch of line group at 12mm---select in 16mm to determine, in this example, each is respectively 15.3mm, 11.8mm, 14.1mm and 12.7mm to the twisting pitch of line group.Cross separation frame 3 is also filled with in cable core 1, separate the mutual square crossing of fin and arrange for four of this cross separation frame 3, the thickness of fin is 0.4mm, the external diameter of place, four fin tops circle is 4.5mm, four fins of mutual square crossing form four separated regions, are equipped with a pair line group 2 in each separated region.
Outwards watertight composition 4, internal shield 5, inner protective layer 6, outer shielding layer 7 and external protection 8 is coated with successively from inner in the outside of cable core 1.Watertight composition 4 is that one deck drags the water-proof polyester band of bag to drag covering outside cable core.Internal shield 5 is plastic-aluminum combined coating layer, and the thickness of this internal shield 5 is 0.07mm, and plastic-aluminum combined coating layer is one side aluminum foil material, and aluminium base thickness is no less than 0.045mm.Inner protective layer 6 and external protection 8 all adopt the low-smoke halide-free fireproof composite polyolefine material of oxygen index more than 35, and thickness is 0.07mm.Outer shielding layer 7 is the tin plated steel wire braid of 0.2mm by 112 diameters, and its density is more than 88%.
An earial drainage line 9 is provided with between watertight composition 2 and inner shield 5.Earial drainage line 9 is the tinned wird of diameter 0.5mm, and earial drainage line 9 is arranged along the length direction of cable.
Be more than illustrate specific embodiment of the present utility model and illustrate, but the utility model is not restricted to above example, all equivalent transformations done according to the utility model general principle, all should within protection range of the present utility model.
Claims (10)
1. a naval vessel high-frequency fire-retardant cable for digital communication, comprise cable core (1), and the cross separation frame (3) be filled in cable core (1), four couple forming cable core (1) lays respectively in four separated regions of cross separation frame (3) to line group (2), it is characterized in that: be outwards coated with watertight composition (4), internal shield (5), inner protective layer (6) successively, outer shielding layer (7) and external protection (8) in the outside of described cable core (1) from inner; Earial drainage line (9) is provided with between described watertight composition (4) and internal shield (5).
2. naval vessel according to claim 1 high-frequency fire-retardant cable for digital communication, is characterized in that: describedly form by two insulated single wires are mutually stranded line group (2), is 12mm-16mm to the twisting pitch of line group (2).
3. naval vessel according to claim 1 and 2 high-frequency fire-retardant cable for digital communication, is characterized in that: four couple of described cable core (1) has different twisting pitch to line group (2).
4. naval vessel according to claim 1 high-frequency fire-retardant cable for digital communication, is characterized in that: the twisting pitch of described cable core (1) is 80mm-120mm.
5. naval vessel according to claim 1 high-frequency fire-retardant cable for digital communication, is characterized in that: the polyester belt of described watertight composition (4) to be thickness be 0.02mm drags covering.
6. naval vessel according to claim 1 high-frequency fire-retardant cable for digital communication, is characterized in that: described internal shield (5) is plastic-aluminum combined layer, and the thickness of this internal shield (5) is 0.07mm.
7. naval vessel according to claim 1 high-frequency fire-retardant cable for digital communication, is characterized in that: described earial drainage line (9) is a tinned wird arranged along cable length direction.
8. naval vessel according to claim 1 high-frequency fire-retardant cable for digital communication, is characterized in that: described outer shielding layer (7) is tincopper fuse wire braided armor.
9. naval vessel according to claim 1 high-frequency fire-retardant cable for digital communication, is characterized in that: described inner protective layer (6) and external protection (8) are low smoke halogen-free flame-retardant polyolefin protective layer.
10. naval vessel according to claim 1 high-frequency fire-retardant cable for digital communication, is characterized in that: described cross separation frame (3) is separated the mutual square crossing of fin and arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520557.8U CN204904875U (en) | 2015-07-17 | 2015-07-17 | Fire -retardant digital communication cable of high frequency for naval vessel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520557.8U CN204904875U (en) | 2015-07-17 | 2015-07-17 | Fire -retardant digital communication cable of high frequency for naval vessel |
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| CN204904875U true CN204904875U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520520557.8U Active CN204904875U (en) | 2015-07-17 | 2015-07-17 | Fire -retardant digital communication cable of high frequency for naval vessel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782833A (en) * | 2016-12-26 | 2017-05-31 | 张家港特恩驰电缆有限公司 | Flame-retardant cable |
| CN109994271A (en) * | 2019-03-20 | 2019-07-09 | 嘉兴奥亿普数据电缆有限公司 | A kind of data line that fire resisting blocks water |
-
2015
- 2015-07-17 CN CN201520520557.8U patent/CN204904875U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782833A (en) * | 2016-12-26 | 2017-05-31 | 张家港特恩驰电缆有限公司 | Flame-retardant cable |
| CN109994271A (en) * | 2019-03-20 | 2019-07-09 | 嘉兴奥亿普数据电缆有限公司 | A kind of data line that fire resisting blocks water |
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