CN101882487A - Category 6 digital communication local area network cable for naval vessel - Google Patents

Category 6 digital communication local area network cable for naval vessel Download PDF

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Publication number
CN101882487A
CN101882487A CN2009100505838A CN200910050583A CN101882487A CN 101882487 A CN101882487 A CN 101882487A CN 2009100505838 A CN2009100505838 A CN 2009100505838A CN 200910050583 A CN200910050583 A CN 200910050583A CN 101882487 A CN101882487 A CN 101882487A
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area network
local area
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naval vessel
digital communication
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CN2009100505838A
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周龙生
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SHANGHAI DUANXIANG ELECTROMECHANICAL CO Ltd
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SHANGHAI DUANXIANG ELECTROMECHANICAL CO Ltd
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Abstract

The invention discloses a category 6 digital communication local area network cable for a naval vessel, which comprises core wires and a non-metal extruded outer sheath wrapped outside the core wires; and the category 6 digital communication local area network cable is characterized in that the core wires comprise four beams, an insulating framework is placed among the four beams of the core wires, and an non-metal extruded inner sheath is wrapped on the outer layers of the four beams of the core wires; and each beam of the core wires comprise two conducting wires with insulating layers, and a metal shielding net is braided between the non-metal extruded outer sheath and the non-metal extruded inner sheath. The category 6 digital communication local area network cable for the naval vessel has the advantages of good mechanical strength, strong electromagnetic shielding capability, small communication digital attenuation, stable transmission speed, no release of toxic gas and thick smoke during the combustion and the like.

Description

Category 6 digital communication local area network cable for naval vessel
Technical field:
What the present invention relates to is the LAN cable that a kind of network service is used, in particular a kind of naval vessel digital communication local area network cable.
Background technology:
On the naval vessel, cable spreads all over the naval vessel whole body just as people's blood vessel and nerve, is undertaking power supply, signal controlling and liaison, guarantees the normal operation on naval vessel.Raising along with modernized naval vessel automaticity, variety of network systems is used more and more on the naval vessel, needed local area network (LAN) quantity and requirement are more and more higher, and the naval vessel often is in a complex electromagnetic environments, need to use six class digital communication local area network cables, because its digital data transmission decay of general telecommunication cable is big, transmission quality is unstable, generally is not suitable for the naval vessel and uses.
At present, the common polythene insulation PVC sheath cable of general employing in the known Ship System, the durability of sign lettering is very poor on this series products, can not stand frequent friction test; And the insulation of this class cable product is poor with the concentricity of sheath, and cable is rounding not very, and external diameter is bigger than normal, and weight is big, mechanical strength is low, and problem such as the decay of telecommunication cable digital signal is big, transmission quality is unstable, anti-electromagnetic interference capability is weak.The pvc sheath burning time can discharge the toxic gas of a large amount of Halogens, in case breaking out of fire, this class cable of burning can a large amount of toxic gases of release place and dense smoke, has not only influenced normally carrying out of disaster relief work, and directly threatened personal safety.Though the LAN cable of using on some naval vessel has solved the general problem that the decay of telecommunication cable digital signal is big, transmission quality is unstable, anti-electromagnetic interference capability is weak, its mechanical strength is relatively poor, does not reach the requirement on naval vessel.The disclosed marine light control of China Granted publication CN2639999Y, telecommunication cable, though solved the fire-retardant problem of existing cable, but do not solve the relatively poor problem of its mechanical strength.
Summary of the invention:
Technical problem to be solved by this invention be to provide a kind of and can improve temperature resistant grade, increase ampacity, anti-flammability is strong, low smoke and zero halogen, shield effectiveness and the good category 6 digital communication local area network cable for naval vessel of mechanical strength, to solve existing naval vessel with the existing many weak points of LAN cable.
Technical problem to be solved by this invention can realize by following technical solution:
Category 6 digital communication local area network cable for naval vessel, comprise plural number bundle heart yearn and be wrapped in the outer nonmetal extruding sheath of heart yearn, sheath is divided into inner sheath and oversheath is two-layer, every Shu Suoshu heart yearn comprises two leads that have insulating barrier, it is characterized in that, be provided with the vertical covering of aluminium foil of parcel heart yearn in the described inner sheath, be provided with the tinned copper wire armour between described inner sheath and the oversheath.The tinned copper wire armour carries out armouring for adopting special armouring technology on high-speed knitter.
Described heart yearn is four bundles, is provided with the cross insulation framework in the middle of described four bundle heart yearns, and four bundle heart yearns are isolated mutually, has reduced the cross-talk between bundle and the bundle heart yearn, and the corresponding vertical resistance to tension that has strengthened cable.
In above-mentioned category 6 digital communication local area network cable for naval vessel, for increasing security performance and mechanical strength, wherein, also be provided with in the vertical bag of above-mentioned inner sheath and aluminium foil and put the ground connection copper wire always, this diameter of directly putting the ground connection copper wire is 0.3~0.8mm.That generally selects 0.5mm for use directly puts the ground connection copper wire.
According to above-mentioned category 6 digital communication local area network cable for naval vessel, wherein, it is the different colours lead that in above-mentioned every bundle heart yearn two have the insulating barrier lead.
According to above-mentioned category 6 digital communication local area network cable for naval vessel, wherein, it is twisted together mutually that in above-mentioned every bundle heart yearn two have the insulating barrier lead, and respectively restraint two pitch differences that have the mutual twisting of insulating barrier lead in the heart yearn.
According to above-mentioned category 6 digital communication local area network cable for naval vessel, wherein, it is a copper conductor that in described every bundle heart yearn two have its lead inside of insulating barrier lead, and this copper conductor diameter is 0.57mm.
In above-mentioned category 6 digital communication local area network cable for naval vessel, in order to increase shield effectiveness, the tinned copper wire armour adopts special armouring technology, carries out armouring on high-speed knitter, count 〉=88% during the braiding of tinned copper wire armour.
According to above-mentioned category 6 digital communication local area network cable for naval vessel, wherein,
The present invention compares with background technology and has the following advantages:
1, between nonmetal extruding inner sheath and oversheath, increases one deck tinned copper wire armour as the metallic shield net, constitute the double shield effect with the internal layer aluminium foil, strengthened the ability of electromagnetic shielding, make cable shield density reach 100%, make the digital signal attenuation of communication little, transmission quality surpasses AMP and surpasses 5 class standard requirements.
2, adopting diameter is the copper conductor formation heart yearn of 0.57mm, between transparent band of Halogen and the vertical bag of internal layer aluminium foil, directly straighten the footpath and be the ground connection copper wire of 0.5mm, the ingenious combination of all the other tinned copper wire armours can increase the security performance and the mechanical strength of telecommunication cable, compares that similar cable machinery intensity is stronger, external diameter is littler, quality is lighter.
3, the tinned copper wire armour adopts special armouring technology, outside the low smoke halogen-free flame-retardant polyolefin inner sheath, carry out the tinned copper wire braiding, count 〉=88%, not only strengthened shielding action, make simultaneously the electric property of product, particularly delay, attenuation constant, near-end crosstalk attenuation, near-end crosstalk power and, equivalent far-end crosstalk, equivalent far-end crosstalk power and etc. performance all surpass 5 class standard requirements above national standard and AMP.
4, between four bundle heart yearns, a cross insulation framework is set, four bundle heart yearns are isolated mutually, can reduce the cross-talk between bundle and the bundle heart yearn, strengthen the longitudinal stretching ability of LAN cable, make cable when laying, be difficult for being broken.
Description of drawings:
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the cross section structure schematic diagram of category 6 digital communication local area network cable for naval vessel of the present invention.
Embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
With reference to figure 1, category 6 digital communication local area network cable for naval vessel comprises heart yearn 7 and is wrapped in heart yearn 7 nonmetal extruding oversheath 1 outward; Heart yearn 7 in the nonmetal extruding oversheath 1 of low smoke halogen-free flame-retardant polyolefin is set to four bundles, every bundle heart yearn 7 comprises the lead of the different colours insulating barrier of two mutual twistings, in the present embodiment, that the leads of the every bundle heart yearn different colours insulating barrier of four bundles in the heart yearns are respectively is blue/white, green/white, palm fibre/white, orange/white, wherein, the mutual lay length of twist minimum of indigo plant/white two leads, green/white, brown/white, orange/white mutual lay length of twist increases gradually, and the stranded stranding of twisting heart yearn of the different lay length of twists of four bundles.Be the copper conductor 72 that a diameter is 0.57mm in lead, this copper conductor 72 can change in 0.3mm~0.8mm scope, also can enlarge its scope as required; At copper conductor 72 coated outside polyethylene layers 71.In the middle of four bundle heart yearns, place insulation framework 8, four bundle heart yearns are isolated mutually, reduced the cross-talk between bundle and the bundle heart yearn, and strengthened vertical resistance to tension of cable mutually.Skin at four bundle heart yearns 7 is enclosed with the transparent band 6 of Halogen, and band 6 is wrapped with the vertical bag 4 of the aluminium foil with shield effectiveness, is molded over the vertical 4 outer nonmetal extruding inner sheaths 3 of low smoke halogen-free flame-retardant polyolefin that wrap of aluminium foil; What also be provided with diameter and be 0.5mm between vertical bag 4 of aluminium foil and band 6 directly puts ground connection copper wire 5, needs according to cable, this is directly put ground connection copper wire 5 and can change in 0.3~0.8mm scope, is generally 0.5mm, and this directly puts security performance and longitudinal pulling force intensity that ground connection copper wire 5 is used for increasing cable.
Main feature of the present invention is: one deck is enclosed with the metallic shield net 2 of tinned copper wire braiding outside the nonmetal extruding inner sheath 3 of low smoke halogen-free flame-retardant polyolefin, this metallic shield net 2 adopts the high-speed knitter braiding to form, unidirectional coverage rate 〉=65.5% during braiding, i.e. count 〉=88%.
The present invention also is enclosed with the nonmetal extruding oversheath 1 of low smoke halogen-free flame-retardant polyolefin outside metallic shield net 2, bilayer effect by nonmetal extruding oversheath 1 of low smoke halogen-free flame-retardant polyolefin and the nonmetal extruding inner sheath 3 of low smoke halogen-free flame-retardant polyolefin has increased the heatproof of cable, fire-resistant, fire-retardant performance.
In addition, the present invention has adopted the metallic shield net 2 of outer field tinned copper wire braiding and the effect of the vertical bag 4 formation double shield of internal layer aluminium foil, has strengthened the electromagnetic shielding ability, makes the decay of communication numeral little, and transmission speed is stable.In addition, the present invention has adopted the low smoke and zero halogen material to make fully, can not discharge toxic gas and dense smoke during burning, inside is provided with and directly puts the ground connection copper wire, increased security performance and mechanical strength, added the resistance to tension of metallic shield net, generally can not broken.
LAN cable the key technical indexes of the present invention is as follows:
(1) conductor DC resistance (20 ℃) :≤72.9/Km
(2) dielectric strength: AC0.7Kv, 1min does not puncture
(3) D.C. resistance imbalance :≤0.4%
(4) insulation resistance (20 ℃): 5000M Ω/Km
(5) mutual capacitance (1kHz) :≤60nF/km
(6) capacitive unbalance to earth (1kHz) :≤5.5%
(7) characteristic impedance (1MHz-250MHz): 100 ± 15 Ω
(8) transmission delay (250MHz) :≤536ns/100m
(9) the transmission delay deviation (〉=1MHz) :≤45ns/100m
(10) attenuation constant (0.772MHz-250MHz) :≤1.8-32.8db/100m
(11) near-end crosstalk attenuation (0.772MHz-250MHz): 〉=7.6-38.0db/100m
(12) level far-end crosstalk attentuation (1MHz-250MH): 〉=68.0~20.0db/100m such as
Below be described LAN cable of the application and the situation comparison sheet of similar cable at aspects such as mutual capacitance, transmission delay, attenuation constant, near-end crosstalk attenuations:
Figure B2009100505838D0000041
Figure B2009100505838D0000051
As seen from the table, cable of the present invention transmission delay, attenuation constant, near-end crosstalk attenuation, etc. all be better than similar cable product aspect level far-end crosstalk attentuation, tinned copper wire metallic shield net, low cigarette, Halogen, the fire retardant polyolefin oversheath.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (7)

1. category 6 digital communication local area network cable for naval vessel, comprise plural number bundle heart yearn and be wrapped in the outer nonmetal extruding sheath of heart yearn, sheath is divided into inner sheath and oversheath is two-layer, every Shu Suoshu heart yearn comprises two leads that have insulating barrier, it is characterized in that, be provided with the vertical covering of aluminium foil of parcel heart yearn in the described inner sheath, be provided with the tinned copper wire armour between described inner sheath and the oversheath.
2. category 6 digital communication local area network cable for naval vessel according to claim 1, it is characterized in that, described heart yearn is four bundles, in the middle of described four bundle heart yearns, be provided with the cross insulation framework, four bundle heart yearns are isolated mutually, reduced the cross-talk between bundle and the bundle heart yearn, and the corresponding vertical resistance to tension that has strengthened cable.
3. category 6 digital communication local area network cable for naval vessel according to claim 1 is characterized in that, also is provided with in the vertical bag of described inner sheath and aluminium foil and puts the ground connection copper wire always, and this diameter of directly putting the ground connection copper wire is 0.3~0.8mm.
4. category 6 digital communication local area network cable for naval vessel according to claim 1 is characterized in that, it is the different colours lead that in every Shu Suoshu heart yearn two have the insulating barrier lead.
5. category 6 digital communication local area network cable for naval vessel according to claim 4, it is characterized in that, it is twisted together mutually that in every Shu Suoshu heart yearn two have the insulating barrier lead, and respectively restraint two pitch differences that have the mutual twisting of insulating barrier lead in the heart yearn.
6. category 6 digital communication local area network cable for naval vessel according to claim 5 is characterized in that, it is a copper conductor that in every Shu Suoshu heart yearn two have its lead inside of insulating barrier lead, and this copper conductor diameter is 0.57mm.
7. category 6 digital communication local area network cable for naval vessel according to claim 1 is characterized in that, count 〉=88% when described tinned copper wire armour weaves.
CN2009100505838A 2009-05-05 2009-05-05 Category 6 digital communication local area network cable for naval vessel Pending CN101882487A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103943191A (en) * 2014-04-26 2014-07-23 芜湖航天特种电缆厂 Light wear-resisting flexible control cable
CN103985453A (en) * 2014-04-11 2014-08-13 安徽省赛华电缆有限公司 Cable with strong pressure resistance
CN104021852A (en) * 2014-05-09 2014-09-03 安徽埃克森科技集团有限公司 Wind energy cable
CN107039111A (en) * 2017-05-24 2017-08-11 南京全信传输科技股份有限公司 Naval vessel watertight digital communications network cable and preparation method thereof
CN112002465A (en) * 2019-05-27 2020-11-27 王成宜 Flexible fireproof network data cable

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1832055A (en) * 2006-04-12 2006-09-13 李明斌 High-speed high-performance data communication cable for network and manufacturing method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1832055A (en) * 2006-04-12 2006-09-13 李明斌 High-speed high-performance data communication cable for network and manufacturing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103985453A (en) * 2014-04-11 2014-08-13 安徽省赛华电缆有限公司 Cable with strong pressure resistance
CN103943191A (en) * 2014-04-26 2014-07-23 芜湖航天特种电缆厂 Light wear-resisting flexible control cable
CN104021852A (en) * 2014-05-09 2014-09-03 安徽埃克森科技集团有限公司 Wind energy cable
CN107039111A (en) * 2017-05-24 2017-08-11 南京全信传输科技股份有限公司 Naval vessel watertight digital communications network cable and preparation method thereof
CN112002465A (en) * 2019-05-27 2020-11-27 王成宜 Flexible fireproof network data cable

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Application publication date: 20101110