CN204130258U - Naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables - Google Patents
Naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables Download PDFInfo
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- CN204130258U CN204130258U CN201420630171.8U CN201420630171U CN204130258U CN 204130258 U CN204130258 U CN 204130258U CN 201420630171 U CN201420630171 U CN 201420630171U CN 204130258 U CN204130258 U CN 204130258U
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 25
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000000779 smoke Substances 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 title claims abstract description 18
- 229910052736 halogen Inorganic materials 0.000 title claims abstract description 18
- 150000002367 halogens Chemical class 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 238000004578 scanning tunneling potentiometry Methods 0.000 claims abstract description 21
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000005030 aluminium foil Substances 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 14
- 229910052755 nonmetal Inorganic materials 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 3
- 239000002341 toxic gas Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model discloses a kind of naval vessel low-smoke non-halogen flame-retardant and surpass six class digital communication local area network cables, comprise heart yearn and be wrapped in the transparent inner sheath outside heart yearn, covering indulged by aluminium foil, covering indulged by aluminium foil, tinned copper wire mesh grid screen and low-smoke non-halogen flame-retardant oversheath, heart yearn comprises four bundles by one-layer STP stranded again after different lay length of twist twisting, cross insulation framework is provided with in the middle of four bundle one-layer STPs, the first screen is also provided with at transparent inner sheath internal layer, the outer surface of cross insulation framework is provided with secondary shielding layer, the outer end of cross insulation framework is connected on the first screen, two limits that first screen is adjacent with cross insulation framework surround the shielding area holding corresponding one-layer STP.The utility model meets the requirement of ANSI/TIA-568-C.2-2009 and national military standard GJB1916, and can adapt to frequency bandwidth and reach 500MHz.
Description
Technical field
The utility model relates to the LAN cable of network service, and in particular a kind of naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables.
Background technology
On naval vessel, cable spreads all over naval vessel whole body just as the blood vessel of people and nerve, is responsible for power supply, signal controlling and liaison, ensures the normal operation on naval vessel.Along with the raising of modernization Ship Automation degree, various network system is applied more and more on naval vessel, required local area network (LAN) quantity is more and more higher with requirement, and naval vessel is often in a complicated electromagnetic environment, six class digital communication local area network cables need be used, because the decay of its digital data transmission of general telecommunication cable is large, transmission quality is unstable, is generally not suitable for naval vessel and uses.
At present, the polythene insulation PVC sheath cable that in known Ship System, general employing is common, the durability of this series products subscript will lettering is very poor, can not stand friction test frequently; And the insulation of this kind of cable product is poor with the concentricity of sheath, cable very not rounding, external diameter is bigger than normal, and weight is large, mechanical strength is low, and the decay of telecommunication cable digital signal greatly, the problem such as transmission quality is unstable, anti-electromagnetic interference capability is weak.Can discharge the toxic gas of a large amount of Halogen during pvc sheath burning, once breaking out of fire, this kind of cable of burning can discharge a large amount of toxic gas in place and dense smoke, not only have impact on normally carrying out of disaster relief work, and directly threatens personal safety.Although the LAN cable that some naval vessel uses solves the general problem that the decay of telecommunication cable digital signal is large, transmission quality is unstable, anti-electromagnetic interference capability is weak, its mechanical strength is poor, does not reach the requirement on naval vessel.Marine light disclosed in China Authorization Notice No. CN2639999Y controls, telecommunication cable, although solve the fire-retardant problem of existing cable, but does not solve the poor problem of its mechanical strength.
In addition, the Chinese patent publication No. that the applicant applied on May 5th, 2009 is the category 6 digital communication local area network cable for naval vessel of CN101882487A, comprises heart yearn and is wrapped in the nonmetal extruding oversheath outside heart yearn; This feature is, described heart yearn is four bundles, between four bundle heart yearns, place insulation framework, and the outer layer covers of four bundle heart yearns has nonmetal extruding inner sheath; Often restraint heart yearn and comprise two wires with insulating barrier, between nonmetal extruding oversheath and nonmetal extruding inner sheath, be woven with metallic shield net.It is good that this patent has mechanical strength, and electromagnetic shielding capability is strong, makes communication digital attenuation little, and transmission speed is stablized, and can not discharge the advantage such as toxic gas and dense smoke during burning.But this patent adopts standard YD/T1019-2001, and its frequency bandwidth is 250MHz, be difficult to required for satisfied 10,000,000,000 speed Ethernet transmission.And the cross-talk between four bunch cores of this cable still exists, do not meet ANSI/TIA-568-C.2-2009 and national military standard GJB1916 can reach 500MHz requirement to adaptation frequency bandwidth.
Utility model content
The purpose of this utility model is for the deficiency of existing ship LAN cable of warship and defect, this bandwidth a kind of is provided and the naval vessel that anti-flammability is strong, low smoke and zero halogen, shield effectiveness and mechanical strength are good with surpassing six class digital communication local area network cables, to solve the many weak points existing for existing ship LAN cable of warship.
Technical problem to be solved in the utility model can realize by following technical solution:
Naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables, comprise heart yearn and be wrapped in the transparent inner sheath outside heart yearn, be outside equipped with aluminium foil at described transparent inner sheath and indulge covering, the tinned copper wire mesh grid screen that covering is outside equipped with count >=88% indulged by described aluminium foil, low-smoke non-halogen flame-retardant oversheath is also provided with outward at described tinned copper wire mesh grid screen, described heart yearn comprises four bundles by one-layer STP stranded again after different lay length of twist twisting, the cross insulation framework for separating location is provided with in the middle of described four bundle one-layer STPs, it is characterized in that, the first screen is also provided with at described transparent inner sheath internal layer, the outer surface of described cross insulation framework is provided with secondary shielding layer, the outer end of described cross insulation framework is connected on described first screen, two limits that described first screen is adjacent with described cross insulation framework surround the shielding area holding corresponding one-layer STP.
In a preferred embodiment of the present utility model, described first screen and secondary shielding layer are foil shielding layer.
In a preferred embodiment of the present utility model, indulge between covering at described transparent inner sheath and described aluminium foil and be also provided with a ground connection copper wire.
In a preferred embodiment of the present utility model, the diameter that each one-layer STP comprises two mutual twistings is the insulated electric conductor core of 0.5 ~ 0.6mm, and each one-layer STP is also provided with flame retardant insulation outward.
In a preferred embodiment of the present utility model, described flame retardant insulation is mica belt or neatly rock layers.
Owing to have employed technical scheme as above, tinned copper wire mesh grid screen of the present utility model and aluminium foil are indulged covering and are formed dual shield, whole cable shield density is made to reach 100%, and the first screen two limits adjacent with cross insulation framework surround the shielding area holding corresponding one-layer STP, further increase the anti-inside of cable and the interference of electromagnetic field ability of outside, guarantee the propagation delay time of cable, attenuation constant, the transmission performance such as near-end and far-end crosstalk attentuation is stablized, to guarantee reliability and the long-distance transmissions quality of communication, and further increase the mechanical strength of cable.The utility model meets the requirement of ANSI/TIA-568-C.2-2009 and national military standard GJB1916, and frequency bandwidth can be adapted to reach 500MHz, can be used to required for the transmission of support ten thousand mbit ethernet, performance index during 20 DEG C of six class netting twine standard regulations still can be reached, to guarantee normally to run at relatively high temperatures 50 DEG C time.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cross section structure schematic diagram that the utility model naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Naval vessel low-smoke non-halogen flame-retardant shown in Figure 1 surpasses six class digital communication local area network cables, comprises heart yearn 100 and is wrapped in the transparent inner sheath 200 outside heart yearn 100.Heart yearn 100 comprises four bundles by one-layer STP 110 stranded again after different lay length of twist twisting.The cross insulation framework 600 for separating location is provided with in the middle of four bundle one-layer STPs 110, the first foil shielding layer 210 is also provided with at transparent inner sheath 200 internal layer, the outer surface of cross insulation framework 600 is provided with the second foil shielding layer 620, and the outer end 620 of cross insulation framework 600 is connected on the first screen 210.Cross insulation framework 600 is mutually isolated for four bundle one-layer STPs 110, two limits that first screen 210 is adjacent with cross insulation framework 600 surround the shielding area 700 holding corresponding one-layer STP 110, the cross-talk between one-layer STP 110 is restrainted in further reduction by four, and mutually enhances longitudinal resistance to tension of cable.The diameter that each one-layer STP 110 comprises two mutual twistings is the insulated electric conductor core 111 of 0.5 ~ 0.6mm, and insulated electric conductor core 111 periphery is coated with insulating barrier 112, and each one-layer STP 110 is outer is also provided with flame retardant insulation 113.Preferably, the diameter of insulated electric conductor core 111 is 0.57mm, and flame retardant insulation 113 is the mica belt or neatly rock layers that anti-flammability is fabulous, further enhancing anti-flammability of the present utility model.
Be outside equipped with aluminium foil at transparent inner sheath 200 and indulge covering 300, transparent inner sheath 200 and aluminium foil are indulged between covering 300 and are also provided with the ground connection copper wire 310 that a diameter is 0.4mm.The tinned copper wire mesh grid screen 400 that covering 300 is outside equipped with count >=88% indulged by aluminium foil, and tinned copper wire mesh grid screen 400 adopts high-speed knitter to weave and forms, unidirectional coverage rate >=65.5%, i.e. count >=88% during braiding.Tinned copper wire mesh grid screen 400 and aluminium foil are indulged covering 300 and are formed dual shield, whole cable shield density is made to reach 100%, further increase the anti-inside of cable and the interference of electromagnetic field ability of outside, guarantee the propagation delay time of cable, attenuation constant, the transmission performance such as near-end and far-end crosstalk attentuation is stablized, to guarantee reliability and the long-distance transmissions quality of communication, and further increase the mechanical strength of cable.Low smoke halogen-free flame-retardant polyolefin oversheath 500 is also provided with outside tinned copper wire mesh grid screen 400.This low smoke halogen-free flame-retardant polyolefin oversheath 500, not containing asbestos component, makes cable have anticorrosion, nontoxic, resistance to elevated temperatures, reaches naval vessel that national military standard specifies with requiring.
In order to increase interference free performance of the present utility model further, can indulge between covering 300 and tinned copper wire mesh grid screen 400 at aluminium foil and being provided with aluminum-alloy wire braiding belt, making the utility model have triple-shielded ability.
LAN cable the key technical indexes described in the utility model is as follows:
Conductor DC resistance (20 DEG C) :≤93.8 Ω/Km;
Dielectric strength (AC0.7Kv, 1min): do not puncture;
D.C. resistance is uneven :≤0.4%;
Insulation resistance (20 DEG C): >=5000M Ω/Km;
Mutual capacitance (1kHz) :≤56nF/km;
Capacitive unbalance to earth :≤330PF/100m;
Characteristic impedance (1MHz ~ 500MHz): 100 ± 15 Ω;
Transmission delay (1MHz ~ 500MHz) :≤570 ~ 536ns/100m;
Transmission delay deviation (1MHz ~ 500MHz) :≤45ns/100m;
Near-end crosstalk attenuation (1MHz ~ 500MHz): >=74.3 ~ 33.8db/100m;
Near-end crosstalk attenuation merit and rate (1MHz ~ 500MHz): >=72.3 ~ 31.8db/100m;
Far-end crosstalk attentuation (1MHz ~ 500MHz): >=67.8 ~ 13.8db/100m;
Far-end crosstalk attentuation merit and rate (1MHz ~ 500MHz): >=64.8 ~ 10.8db/100m;
Be below LAN cable electrical performance indexes table described in the utility model:
As seen from the table, cable described in the utility model transmission delay, attenuation constant, near-end crosstalk attenuation, etc. be all better than similar cable product in level far-end crosstalk attentuation, tinned copper wire metallic shield net, low cigarette, Halogen, fire retardant polyolefin oversheath.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables, comprise heart yearn and be wrapped in the transparent inner sheath outside heart yearn, be outside equipped with aluminium foil at described transparent inner sheath and indulge covering, the tinned copper wire mesh grid screen that covering is outside equipped with count >=88% indulged by described aluminium foil, low-smoke non-halogen flame-retardant oversheath is also provided with outward at described tinned copper wire mesh grid screen, described heart yearn comprises four bundles by one-layer STP stranded again after different lay length of twist twisting, the cross insulation framework for separating location is provided with in the middle of described four bundle one-layer STPs, it is characterized in that, the first screen is also provided with at described transparent inner sheath internal layer, the outer surface of described cross insulation framework is provided with secondary shielding layer, the outer end of described cross insulation framework is connected on described first screen, two limits that described first screen is adjacent with described cross insulation framework surround the shielding area holding corresponding one-layer STP.
2. naval vessel as claimed in claim 1 low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables, and it is characterized in that, described first screen and secondary shielding layer are foil shielding layer.
3. naval vessel as claimed in claim 1 low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables, it is characterized in that, indulges between covering being also provided with a ground connection copper wire at described transparent inner sheath and described aluminium foil.
4. naval vessel as claimed in claim 1 low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables, it is characterized in that, the diameter that each one-layer STP comprises two mutual twistings is the insulated electric conductor core of 0.5 ~ 0.6mm, and each one-layer STP is also provided with flame retardant insulation outward.
5. naval vessel as claimed in claim 4 low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables, and it is characterized in that, described flame retardant insulation is mica belt or neatly rock layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630171.8U CN204130258U (en) | 2014-10-28 | 2014-10-28 | Naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630171.8U CN204130258U (en) | 2014-10-28 | 2014-10-28 | Naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables |
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| CN204130258U true CN204130258U (en) | 2015-01-28 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766650A (en) * | 2015-04-07 | 2015-07-08 | 江苏亨通线缆科技有限公司 | Heat-resisting type communication power source flexible cable |
| CN104900317A (en) * | 2015-06-08 | 2015-09-09 | 安徽宜德电子有限公司 | Dual-sheath fire-proof digital communication symmetric cable |
| CN105931735A (en) * | 2016-06-24 | 2016-09-07 | 安徽宜德电子有限公司 | Special polyolefin insulating sheath flame resistant cable |
| CN107403660A (en) * | 2017-09-15 | 2017-11-28 | 贵州固达电缆有限公司 | A kind of medical four cores shielded cable |
| CN109148008A (en) * | 2018-08-22 | 2019-01-04 | 安徽明星电缆有限公司 | A kind of marine engineering equipment drum cable |
| CN110335720A (en) * | 2019-07-12 | 2019-10-15 | 江苏中煤电缆有限公司 | A kind of coal mine low-smoke non-halogen flame-retardant unmasked pair cable |
| CN113744926A (en) * | 2021-09-15 | 2021-12-03 | 南昌工程学院 | High-speed net twine of metallized cross skeleton |
-
2014
- 2014-10-28 CN CN201420630171.8U patent/CN204130258U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766650A (en) * | 2015-04-07 | 2015-07-08 | 江苏亨通线缆科技有限公司 | Heat-resisting type communication power source flexible cable |
| CN104900317A (en) * | 2015-06-08 | 2015-09-09 | 安徽宜德电子有限公司 | Dual-sheath fire-proof digital communication symmetric cable |
| CN105931735A (en) * | 2016-06-24 | 2016-09-07 | 安徽宜德电子有限公司 | Special polyolefin insulating sheath flame resistant cable |
| CN107403660A (en) * | 2017-09-15 | 2017-11-28 | 贵州固达电缆有限公司 | A kind of medical four cores shielded cable |
| CN109148008A (en) * | 2018-08-22 | 2019-01-04 | 安徽明星电缆有限公司 | A kind of marine engineering equipment drum cable |
| CN110335720A (en) * | 2019-07-12 | 2019-10-15 | 江苏中煤电缆有限公司 | A kind of coal mine low-smoke non-halogen flame-retardant unmasked pair cable |
| CN113744926A (en) * | 2021-09-15 | 2021-12-03 | 南昌工程学院 | High-speed net twine of metallized cross skeleton |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |