CN205645391U - High fire -retardant automatic control temperature digital communication cable - Google Patents
High fire -retardant automatic control temperature digital communication cable Download PDFInfo
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- CN205645391U CN205645391U CN201620463574.7U CN201620463574U CN205645391U CN 205645391 U CN205645391 U CN 205645391U CN 201620463574 U CN201620463574 U CN 201620463574U CN 205645391 U CN205645391 U CN 205645391U
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Abstract
The utility model discloses a high fire -retardant automatic control temperature digital communication cable, 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, on the cable core from the lining outwards in proper order the cladding have fire -retardant band layer, shielding layer, high fire -retardant layer and cable jacket, the outside of cable core still the parallel be provided with the refrigerant conveyer pipe with being separated by, the conveyer pipe sheath on this refrigerant conveyer pipe is even as an organic whole with cable jacket, be equipped with on the refrigerant conveyer pipe pass refrigerant conveyer pipe pipe wall with carry the sheath from the fusible plug. From the length direction interval setting of fusible plug along the refrigerant conveyer pipe. Fill in for low -melting -point alloy from the fusible plug. The pipe wall both sides of refrigerant conveyer pipe all are provided with from the fusible plug. The utility model discloses a high fire -retardant automatic control temperature digital communication cable not only has high fire behaviour and good shielding effect, moreover can automatic control cable temperature.
Description
Technical field
This utility model relates to a kind of cable for digital communication, particularly relates to a kind of cable for digital communication that can automatically control cable temperature and have high fire-retardance function.
Background technology
Development along with society, communication technology stepped into information, digital times, network service science and technology develops to deeper, widely field with unprecedented speed, this just requires that cable for digital communication not only has higher transmission speed, broader transmission bandwidth, and can adapt to various severe use environment, to realize the safe and accurate transmission of information.
In cable for digital communication, paired cable is the most frequently used a kind of transmission medium in generic cabling engineering, is also a kind of cable for digital communication that current cost performance is the highest.It is to be twisted into four to line group two-by-two by eight insulation core wires, then by this four couple to line group twisted synthesizing cable, finally squeezes into oversheath and make finished cable.But in the existing this construction of cable, the relative position between line group is only fixed by cable jacket, the instability of the construction of cable, inevitably result in the deterioration of the performance indications such as such as input impedance, near-end crosstalk, FEXT and decay, serious restriction communication cable operating frequency and the raising of data transmission bauds.
For improving the transmission performance of data cable, people develop the data cable with ten splitting of words skeletons, space in oversheath is separated into four area of space accommodated line group by this ten splittings of words skeleton, each region is equipped with a pair line group, it is mutually nested that this structure can effectively prevent line group, and it is greatly enhanced the stability of the construction of cable, the electric property of cable is effectively ensured.
Having wide range of applications of communication cable, uses environment sufficiently complex, as being used in the engineerings such as skyscraper, subway and tunnel.In order to ensure the safe and reliable work of communication system, cable for digital communication safety under fire, hot conditions is had higher requirement, the cable for digital communication using temperature control fire-retardant is imperative, this operating ambient temperature just requiring to control cable, and there is higher thermal insulation and anti-flammability.And existing communication cable does not has high flame resistance, transmit signal when fire occurs and be vulnerable to interference and destroy, even make whole communication system tend to paralysis.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high fire-retardance temp auto-controlled cable for digital communication, and it not only has high flame resistance and good shield effectiveness, and can automatically control cable temperature.
In order to solve above-mentioned technical problem, high fire-retardance temp auto-controlled cable for digital communication of the present utility model, including cable core and the cross separation frame that is filled in cable core, line group is laid respectively in four separated regions of cross separation frame by four couple of composition cable core, and described cable core is coated with fire-retardant belting layer, screen layer, high fire-retardance layer and cable jacket the most successively；The most parallel coolant conveying pipe that is provided with being separated by the outside of cable core, the conveying tube boot on this coolant conveying pipe is connected as a single entity with cable jacket；Coolant conveying pipe on be provided through coolant conveying tube wall and delivery catheter from fused plug.
In said structure, due to four couple of cable core to line group respectively position in four separated regions of cross separation frame, this structure, in the case of ensureing the outside diameter of cable, increases the distance between line group, the support fixation of separation frame, makes again to seem line group position especially stable firm.The displacement vibration to line group will not be formed, the construction of cable can keep the location status of robust, separation frame also plays prevent between line group mutually nested simultaneously, avoid line group is mutually invaded interference, this reliable and stable version ensure that the stability of cable parameters, the operating frequency making cable is improved, and data transmission bauds is accelerated.Again owing to being provided with coolant conveying pipe with being separated by cable core external side parallel, this coolant conveying pipe is provided with from fused plug, when cable environment temperature is higher than during from fused plug fusing point, coolant in coolant conveying pipe is flowed out from molten hole be sprayed onto on cable from fused plug fusing, so that cable temperature declines, if the therefore selected melting temperature from fused plug in this structure, it is possible to automatically control cable operating temperature, and do not make it excessively raise.Due also to be surrounded with fire-retardant belting layer outside cable core, the most effectively stabilize cable conductor structure, there is again high flame retardant, it is extruded with high fire-retardance layer on the shielding layer, this high fire-retardance layer can reach fabulous flame retardant effect, can effectively keep out the invasion of outside burning things which may cause a fire disaster, the haptoreaction of the combustibles such as prevention and oxygen, effectively block heat to cable internal delivery；High fire-retardance layer can realize fire-retardant self-extinguishment, and under the ablation of flame, a few minutes just can reach to give up smoking completely, even if in ensuing ablation process, the material such as produced carbon dioxide and water does not have smog and produces, and is innocuous substance.Use shielding layer structure, not only solve the electromagnetic interference problem of the inside and outside of cable, be effectively increased overall anti-electromagnetic interference capability and the cross-talk resistant performance of cable, it is to avoid the error code phenomenon in data transmission.
This utility model further embodiment, is provided with earial drainage line between described fire-retardant belting layer and screen layer.It is arranged at fire-retardant belting layer and the earial drainage line of shielding interlayer, both there is break alarm function, can guarantee that again the isoelectric level of each section of cable, be conducive to improving the performances such as anti-interference, the cross-talk of cable.
A kind of preferred implementation of the present utility model, described interval along the length direction of coolant conveying pipe from fused plug is arranged.Described from fused plug be low-melting alloy plug.The tube wall both sides of described coolant conveying pipe are provided with from fused plug.The temperature control cooling that this structure can be carried out according to the temperature rise of wireline environment.
This utility model further embodiment, fire-retardant belting layer is formed by low-smoke non-halogen flame-retardant band is wrapped.There is high flame retardant and will not be to environment.
This utility model further embodiment, described screen layer is tincopper fuse wire braided armor.This structure has good shield effectiveness and cable flexibility.
A kind of preferred implementation of the present utility model, described high fire-retardance layer is that Ceramic silicon rubber extrudes layer.Ceramic silicon rubber can form self-supporting ceramic body in flame, and blocking oxygen, self produces moisture, absorb heat, reach to stop propagation of flame and the purpose of self-extinguishment, there is certain flexual strength and pressure wears intensity, do thermal impact good, low smoke, zero halogen, self-extinguishment, environmental protection, and the production technology of fire-resisting cable can be simplified, reduce cost.
This utility model further embodiment, described cable jacket and conveying tube boot are extruded by low smoke halogen-free flame-retardant polyolefin entirety and form.The switching performance of cable and conveying pipe is good, and it is good to make cable have some strength, thermal-shock resistance and electrical property, and has without low cigarette, effect of environmental protection self-extinguishment.
Accompanying drawing explanation
With detailed description of the invention, this utility model high fire-retardance temp auto-controlled cable for digital communication is described further below in conjunction with the accompanying drawings.
Fig. 1 is the cross section structure schematic diagram of this utility model high fire-retardance a kind of detailed description of the invention of temp auto-controlled cable for digital communication.
In figure, 1 cable core, the 2 pairs of line groups, 21 insulating layer of conductor, 22 conductors, 3 cross separation frames, 4 coolant conveying pipes, 5 from fused plug, 6 conveying tube boot, 7 fire-retardant belting layers, 8 screen layers, 9 high fire-retardance layers, 10 cable jackets, 11 earial drainage lines.
Detailed description of the invention
High fire-retardance temp auto-controlled cable for digital communication as shown in Figure 1, the cable core 1 of cable is formed to line group 2 is stranded by four, and the twisting pitch of cable core 1 is 100mm, it is also possible to select in 80 mm 120 mm.Every a pair line group 2 is formed by two insulated single wires are the most stranded, and insulated single wire is made up of conductor 22 and the insulating layer of conductor 21 that is coated on conductor 22.Conductor 22 is the copper wire of a diameter of 0.57 mm, and the percentage elongation of conductor 22 controls to be that between 25% 27%, the thickness of insulating layer of conductor 21 is 0.31 mm, and the concentricity of insulating layer of conductor 21 is not less than 99%.Four pairs of twisting pitch to line group 2 all differ, but select to determine in 12 mm 16 mm to the twisting pitch of line group, and in this example, each is respectively 15.3 mm, 11.8 mm, 14.1 mm and 12.7 mm to the twisting pitch of line group.Cross separation frame 3 it is also filled with in cable core 1, four separation fins of this cross separation frame 3 are mutually perpendicular to arranged in a crossed manner, the thickness of fin is 0.4 mm, the external diameter of place, four fin tops circle is 4.5mm, four fins being mutually perpendicular to intersect form four separated regions, are equipped with a pair line group 2 in each separated region.
Fire-retardant belting layer 7, screen layer 8, high fire-retardance layer 9, cable jacket 10 it is coated with the most successively in the outside of cable core 1.Fire-retardant belting layer 7 is one layer of low-smoke non-halogen flame-retardant band lapping layer wrapped outside cable core.Screen layer 8 is tincopper fuse wire braided armor, and cable jacket 10 uses oxygen index (OI) low-smoke halide-free fireproof composite polyolefine material more than 35, and thickness is 0.07mm.An earial drainage line 11 it is provided with between fire-retardant belting layer 7 and screen layer 8.Earial drainage line 11 is the tinned wird of diameter 0.5mm, and earial drainage line 11 is arranged along the length direction of cable.Fire-retardant belting layer 7 is formed by low-smoke non-halogen flame-retardant band is wrapped, this low-smoke non-halogen flame-retardant band is to impregnate fire retardant glue on glass fiber tape and formed, screen layer 8 extrudes Ceramic silicon rubber and constitutes high fire-retardance layer 9, Ceramic silicon rubber can form self-supporting ceramic body in flame, and blocking oxygen, self produces moisture, absorb heat, reach to stop propagation of flame and the purpose of self-extinguishment, there is certain flexual strength and pressure wears intensity, do thermal impact good, low smoke, zero halogen, self-extinguishment, environmental protection, and the production technology of fire-resisting cable can be simplified, reduce cost.It is extruded with low smoke halogen-free flame-retardant polyolefin on high fire-retardance layer 9 and constitutes cable jacket 10.
Coolant conveying pipe 4 it is provided with at intervals in the outside of cable core 1, this coolant conveying pipe 4 is soft plastic pipe, coolant conveying pipe 4 is paralleled with cable core 1, conveying tube boot 6 on coolant conveying pipe 4 and cable jacket 10 are extruded by low smoke halogen-free flame-retardant polyolefin entirety and form so that conveying tube boot is linked as an overall structure with cable jacket 10.Coolant conveying pipe 4 on be provided through coolant conveying pipe 4 tube wall and conveying tube boot 6 from fused plug 5, from fused plug 5, the length direction along coolant conveying pipe 4 is arranged spaced reciprocally, the tube wall both sides of coolant conveying pipe are provided with from fused plug 5, be positioned at tube wall both sides from the interlaced setting of fused plug 5.The stopple cast for low-melting alloy from fused plug 5, sets operating temperature value according to cable and selectes low-melting alloy, and low-melting alloy is typically elementary composition by low-melting-point metals such as bismuth, stannum, lead, copper.The coolant of coolant conveying pipe 4 can be water, or other nonflammable cold-producing mediums etc..
Above this utility model specific embodiment is illustrated and illustrates, but this utility model patent is not limited only to above example, all equivalent transformations made according to this utility model patent, all should be within this utility model scope of patent protection.
Claims (10)
1. a high fire-retardance temp auto-controlled cable for digital communication, including cable core (1) and the cross separation frame (3) that is filled in cable core (1), line group (2) is laid respectively in four separated regions of cross separation frame (3) by four couple of composition cable core (1), it is characterised in that: it is coated with fire-retardant belting layer (7), screen layer (8), high fire-retardance layer (9) and cable jacket (10) on described cable core (1) the most successively；The most parallel coolant conveying pipe (4) that is provided with being separated by the outside of cable core (1), the conveying tube boot (6) on this coolant conveying pipe (4) is connected as a single entity with cable jacket (10)；Coolant conveying pipe (4) on be provided through coolant conveying pipe (4) tube wall and delivery catheter (6) from fused plug (5).
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 1, it is characterised in that: between described fire-retardant belting layer (7) and screen layer (8), it is provided with earial drainage line (11).
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 1 and 2, it is characterised in that: described interval along the length direction of coolant conveying pipe (4) from fused plug (5) is arranged.
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 1 and 2, it is characterised in that: described from fused plug (5) be low-melting alloy plug.
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 1 and 2, it is characterised in that: the tube wall both sides of described coolant conveying pipe (4) are provided with from fused plug (5).
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 1, it is characterised in that: described fire-retardant belting layer (7) is formed by low-smoke non-halogen flame-retardant band is wrapped.
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 1, it is characterised in that: described screen layer (8) is tincopper fuse wire braided armor.
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 1, it is characterised in that: described high fire-retardance layer (9) is that Ceramic silicon rubber extrudes layer.
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 1, it is characterised in that: described cable jacket (10) and conveying tube boot (6) are extruded by low smoke halogen-free flame-retardant polyolefin entirety and form.
High fire-retardance temp auto-controlled cable for digital communication the most according to claim 2, it is characterised in that: described earial drainage line (11) is a tinned wird arranged longitudinally along the cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620463574.7U CN205645391U (en) | 2016-05-21 | 2016-05-21 | High fire -retardant automatic control temperature digital communication cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620463574.7U CN205645391U (en) | 2016-05-21 | 2016-05-21 | High fire -retardant automatic control temperature digital communication cable |
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| CN205645391U true CN205645391U (en) | 2016-10-12 |
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| CN201620463574.7U Active CN205645391U (en) | 2016-05-21 | 2016-05-21 | High fire -retardant automatic control temperature digital communication cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018121163A1 (en) * | 2016-12-26 | 2018-07-05 | 张家港特恩驰电缆有限公司 | Flame retardant cable |
| CN112562899A (en) * | 2020-12-07 | 2021-03-26 | 苗国玉 | Keep apart cable that dispels heat fast |
-
2016
- 2016-05-21 CN CN201620463574.7U patent/CN205645391U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018121163A1 (en) * | 2016-12-26 | 2018-07-05 | 张家港特恩驰电缆有限公司 | Flame retardant cable |
| CN112562899A (en) * | 2020-12-07 | 2021-03-26 | 苗国玉 | Keep apart cable that dispels heat fast |
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