CN103871560A - Low-smoke halogen-free anti-interference digital signal cable for railway - Google Patents
Low-smoke halogen-free anti-interference digital signal cable for railway Download PDFInfo
- Publication number
- CN103871560A CN103871560A CN201410065310.1A CN201410065310A CN103871560A CN 103871560 A CN103871560 A CN 103871560A CN 201410065310 A CN201410065310 A CN 201410065310A CN 103871560 A CN103871560 A CN 103871560A
- Authority
- CN
- China
- Prior art keywords
- layer
- armour
- digital signal
- low
- signal cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a low-smoke halogen-free anti-interference digital signal cable for a railway. The low-smoke halogen-free anti-interference digital signal cable comprises multiple core wires, wherein each core wire comprises four conductors formed by star-shaped stranding, and single-sided aluminum and plastic composite tapes wrapped outside all the four conductors, plastic layer surfaces of the single-sided aluminum and plastic composite tapes face outwards, aluminum metal layer surface of the single-sided aluminum and plastic composite tapes face inwards, each conductor comprises a wire positioned in the center, and a low-density polyethylene inner skin layer, a physical foaming polyolefin foaming layer and a polypropylene outer skin layer which are sequentially wrapped outside the wire, the multiple core wires are symmetrically and longitudinally arranged in parallel for forming a cable core, a wrapping layer is wrapped outside the cable core, a first armoring layer is wrapped outside the wrapping layer, an isolating layer is wrapped outside the first armoring layer, a second armoring layer is wrapped outside the isolating layer, a sheathing layer is wrapped outside the second armoring layer, the second armoring layer is formed by longitudinally wrapping metal hollow pipes which are densely arranged, the sheathing layer is made of low-smoke halogen-free cross-linked polyolefin, and the first armoring layer and the second armoring layer are made of different kinds of metal. The low-smoke halogen-free anti-interference digital signal cable for the railway provided by the invention is resistant to moisture and corrosive, good in shielding performance and good in tensile strength and bending resistance and has anti-flaming low-smoke environment-protecting effects.
Description
Technical field
The present invention relates to cable technology field, relate in particular to the anti-interference railway digital signal cable of a kind of low smoke and zero halogen.
Background technology
For a long time, due to the deficiency existing by material and structure aspects, make cable in railway systems, use its tensile strength, bending resistance to be difficult to adapt to instructions for use, evil idea in damaged condition causes communication failure.
The both direction of current railway locomotive development, the one, passenger traffic adopts high speed motor car, and the 2nd, shipping adopts the heavy traction of the marshalling of growing up.High speed motor car and heavy traction are had higher requirement to fail safe and comfortableness, in existing internal screening railway digital signal cable production process, what the anti-interference railway digital signal cable of common railway low smoke and zero halogen adopted is the anti-interference railway digital signal cable of plastic sheath low smoke and zero halogen or the anti-interference railway digital signal cable of composite sheath low smoke and zero halogen.The coated of its shielding is mainly the mode that adopts wrapped or vertical bag; adopt this two kinds of internal screening railway digital signal cables that mode is produced; often can there are the quality problems that copper strips bottom pour ladle or copper strips seam crossing split; due to the non-conductive gap of the discontinuous of shield and the formation of shield different piece junction; capital produces electromagnetic leakage; have a strong impact on the shielding properties of cable, caused great potential safety hazard to railway transportation.Therefore, the shielding of cable is not very desirable, runs into interference when more serious, can cause the distortion of signal transmission.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes the anti-interference railway digital signal cable of a kind of low smoke and zero halogen, its moisture-proof anticorrosive, shield effectiveness are good, and stretching-resisting bending-resisting song is good, fire-retardant low cigarette environmental protection.
The anti-interference railway digital signal cable of a kind of low smoke and zero halogen that the present invention proposes, comprises by multiple heart yearns; Each heart yearn comprises that four through the conductor of star twisting with at the outside coated one side aluminium-plastic tape of all four conductors, the plastic layer of one side aluminium-plastic tape towards outside, aluminum metal layer is towards interior, and each conductor comprises the wire that is positioned at middle part and low density polyethylene (LDPE) endodermis, physical blowing polyalkene foaming layer and the polypropylene exodermis that is coated on successively wire outside; By the vertical multiple heart yearn symmetrical parallel formation cable core of putting, at the outside coated lapping layer of cable core, at outside coated the first armour of lapping layer, at the outside coated separator of the first armour, at outside coated the second armour of separator, at the coated restrictive coating in the outside of the second armour, described the second armour adopts the vertical bag of compact arranged metal hollow pipe to form, described restrictive coating adopts low smoke and zero halogen cross-linked polyolefin to make, and described the first armour and described the second armour adopt different metals to make.
Preferably, described the first armour adopts the form of metal net, and its coverage rate is greater than 75%.。
Preferably, the metal hollow pipe that described the second armour adopts is cylindrical, hollow pipe.
Preferably, the metal hollow pipe of described the second armour adopts silver-plated steel to make.
Preferably, described wire adopts copper core or tin-coated copper core.
Preferably, described separator adopts laminated polyester film, and thickness is 0.2-0.3mm.
In the present invention, the insulating barrier of the conductor in heart yearn adopts skin-bubble-Pi physical blowing polyolefin insulation layer, makes that cable attenuation is little, diameter is little in the situation that electric capacity is equal, cost is low, moistureproof oil resistance is good; By four conductor star twistings, make two pairs of conductors respectively in symmetric position, form a stable unit quad, can, not by external equipment, reduce to greatest extent cross-talk; Heart yearn is symmetrical arranged in cable, strengthens mutual interference between heart yearn; At the outside coated one side aluminium-plastic tape of four conductors through star twisting, its aluminum metal layer plays the effect of internal shield, and plastic layer protection conductor, plays the effect of moisture-proof anticorrosive erosion; The second armour adopts the form of the vertical bag of compact arranged metal hollow pipe, compared with the vertical bag of common metal band, can further protect cable not to be subject to outside destroy, and save material, lightweight; Double armor layer adopts two kinds of different metals to make, and realizes the effect of outer shielding layer, and with together with the aluminum metal layer of one side aluminium-plastic tape, plays complementation on electromagnetic wave shielding, and shield effectiveness will be better; Low smoke and zero halogen cross-linked polyolefin sheath layer protection metal armouring layer, and there is fire-retardant effect, the nontoxic low cigarette of gas of emitting when burning.
In preferred version of the present invention, the cylindrical metal hollow tube that the second armour adopts silver-plated steel to make, compared with the metal hollow pipe of other shapes, its mechanical performance is better, stressed more balanced, and the material of silver-plated steel has further strengthened shield effectiveness; The first armour adopts coverage rate to be greater than the form of 75% metal net, the shield effectiveness deficiency that may occur while structurally having made up the vertical bag of the second armour.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-interference railway digital signal cable of a kind of low smoke and zero halogen that proposes of the present invention.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of the anti-interference railway digital signal cable of a kind of low smoke and zero halogen that proposes of the present invention.
With reference to Fig. 1, the anti-interference railway digital signal cable of a kind of low smoke and zero halogen that the present invention proposes, comprises four heart yearns.
In each heart yearn, comprise the plastic-aluminum combined layer 2 of four conductors 1 and one side, conductor 1 comprises the copper conductor 11 in the middle of being positioned at.At the outside coated low density polyethylene (LDPE) endodermises 12 of copper conductor 11, physical blowing polyalkene foaming layer 13, polypropylene exodermis 14, the insulating barrier of this seed coat-bubble-skin structure makes that cable attenuation is little, diameter is little in the situation that electric capacity is equal, cost is low, moistureproof oil resistance is good.
By four conductor 1 star twistings, make two pairs of conductors 1 respectively in symmetric position, form a stable unit quad, reduce to greatest extent cross-talk.At the plastic-aluminum combined layer 2 of the outside coated one side of all four conductors 1; the plastic layer of the plastic-aluminum combined layer 2 of one side tightens together conductor 1 towards interior; its plastic layer protection skin-bubble-Pi physical blowing polyolefin insulation layer; play the effect of moisture-proof anticorrosive erosion; aluminum metal layer plays the effect of internal shield, is each heart yearn shielding electromagnetic wave and interference.
By vertical four the heart yearn symmetrical parallel formation cable core of putting, outside is tightly strapped in together with lapping layer 3.Four heart yearns are symmetrical arranged in cable, strengthen the anti-electromagnetic interference between heart yearn.Outside coated the first armour 4 of lapping layer 3, it adopts the form of the copper mesh grid of coverage rate 80%.The laminated polyester film 5 that the outside coated thickness of the first armour 4 are 0.3mm, outside coated the second armours 6 of laminated polyester film 5, it adopts the vertical packet form of cylindrical, hollow metal tube that silver-plated steel make.
The outside coated low smoke and zero halogen cross-linked polyolefin sheath layer 7 of the second armour 6, restrictive coating 7 adopts low smoke and zero halogen cross-linked polyolefin, makes cable in burning, realize low smoke and zero halogen, environmental sound.
In cable uses, the insulating barrier of conductor 1 adopts skin-bubble-Pi physical blowing polyolefin insulation layer, makes that cable attenuation is little, diameter is little in the situation that electric capacity is equal, cost is low, moistureproof oil resistance is good.And, by four conductor star twistings, make two pairs of conductors respectively in symmetric position, form a stable unit quad.This heart yearn setting can, not by external equipment, reduce cross-talk to greatest extent.The first armour 4, the second armour 6 and one side aluminium-plastic tape 3 adopt respectively the form of metal net, the vertical bag of silver-plated steel hollow metal pipe and continuous aluminum metal layer, and adopt copper, steel, silver, aluminium different metal to make, this all plays in electromagnetic wave shielding complementation in material and structure, and shield effectiveness strengthens.In addition, laminated polyester film 5 as separator, prevents the phenomenon of multipoint earthing between the first armour 4, the second armour 6.
In the time that cable is subject to external force, the first armour 4, the second armour 6 form double armor together, upwards protect cable in axial and footpath.And the second armour 6 adopts the form of the vertical bag of compact arranged cylindrical, hollow metal tube, compared with the vertical bag of common metal band, it is stressed evenly, protects especially diametrically cable not to be subject to outside destroy.In addition, the restrictive coating 7 that low smoke and zero halogen cross-linked polyolefin is made is protected metal armouring layer, has the effect of moisture retardant, the nontoxic low cigarette of gas of emitting when burning.
Preferably, the low smoke and zero halogen cross-linked polyolefin that restrictive coating 7 adopts comprises following component by mass fraction: 100 parts of EVA, 30-45 part HDPE, 70-100 part Firebrake ZB, 1-5 part silane coupler, 5-15 part paraffin, 1-5 part calcium stearate, 0.5-5 part phosphite ester, 10-15 part nano-calcium carbonate; Particularly, 100 parts of EVA, 30 parts of HDPE, 80 parts of Firebrake ZBs, 2 parts of silane couplers, 7 parts of paraffin, 3 parts of calcium stearates, 2 parts of phosphite esters, 10 parts of nano-calcium carbonates.The restrictive coating 7 that this low smoke and zero halogen cross-linked polyolefin makes has that mechanical performance is high, high temperature resistant, fire resistance is high, LSZH when burning.It protects the second armour 6, and has fire-retardant effect, the nontoxic low cigarette of gas of emitting when burning.
According to the anti-interference railway digital signal cable of the low smoke and zero halogen of the present embodiment, after testing, the insulation resistance >=10000M Ω km at 20 ℃ under 500V DC condition; Other conductor is connect to shielding to each conductor and metallic sheath capacitive coupling coefficient is 0.8KHz～1.0kHzpF/km; Mean value≤81 of K1, maximum :≤330; Under 150kHz between loop in near-end crosstalk attenuation group >=and 51[51] dB/1000m, between group >=and 55[65] dB/1000m; Smoke density >=80%; PH value >=7.3; Conductivity≤10 μ S/mm.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. the anti-interference railway digital signal cable of low smoke and zero halogen, is characterized in that, comprises by multiple heart yearns, each heart yearn comprises four conductors through star twisting (1) and at the outside coated one side aluminium-plastic tape (2) of all four conductors (1), the plastic layer of one side aluminium-plastic tape (2) towards outside, aluminum metal layer is towards interior, and each conductor (1) comprises the low density polyethylene (LDPE) endodermis (12), physical blowing polyalkene foaming layer (13) and the polypropylene exodermis (14) that are positioned at the wire (11) at middle part and are coated on successively wire (11) outside, by the vertical multiple heart yearn symmetrical parallel formation cable core of putting, at the outside coated lapping layer (3) of cable core, at outside coated the first armour (4) of lapping layer (3), at the outside coated separator (5) of the first armour (4), at outside coated the second armour (6) of separator (5), at the coated restrictive coating (7) in the outside of the second armour (6), described the second armour (6) adopts the vertical bag of compact arranged metal hollow pipe to form, described restrictive coating (7) adopts low smoke and zero halogen cross-linked polyolefin to make, described the first armour (4) and described the second armour (6) adopt different metals to make.
2. the anti-interference railway digital signal cable of low smoke and zero halogen according to claim 1, is characterized in that, described the first armour (4) adopts the form of metal net, and its coverage rate is greater than 75%.
3. the anti-interference railway digital signal cable of low smoke and zero halogen according to claim 1, is characterized in that, the metal hollow pipe that described the second armour (4) adopts is cylindrical, hollow pipe.
4. the anti-interference railway digital signal cable of low smoke and zero halogen according to claim 1, is characterized in that, the metal hollow pipe of described the second armour (6) adopts silver-plated steel to make.
5. the anti-interference railway digital signal cable of low smoke and zero halogen according to claim 3, is characterized in that, described wire (1) adopts copper core or tin-coated copper core.
6. the anti-interference railway digital signal cable of low smoke and zero halogen according to claim 1, is characterized in that, described separator (5) adopts laminated polyester film, and thickness is 0.2-0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065310.1A CN103871560B (en) | 2014-02-23 | 2014-02-23 | The anti-interference railway digital signal cable of a kind of low smoke and zero halogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065310.1A CN103871560B (en) | 2014-02-23 | 2014-02-23 | The anti-interference railway digital signal cable of a kind of low smoke and zero halogen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103871560A true CN103871560A (en) | 2014-06-18 |
| CN103871560B CN103871560B (en) | 2015-12-02 |
Family
ID=50909998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410065310.1A Active CN103871560B (en) | 2014-02-23 | 2014-02-23 | The anti-interference railway digital signal cable of a kind of low smoke and zero halogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103871560B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098184A (en) * | 2016-07-07 | 2016-11-09 | 李保集 | A kind of high reliability cable for rail transit vehicles |
| CN108257728A (en) * | 2018-01-17 | 2018-07-06 | 张家港特恩驰电缆有限公司 | A kind of discrete shielding tape and its manufacturing method for data telecommunication line cable |
| CN108831597A (en) * | 2018-05-02 | 2018-11-16 | 沪如科技南京有限公司 | A kind of ceramic silica gel cable |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4783576A (en) * | 1987-10-01 | 1988-11-08 | Pirelli Cable Corporation | High voltage gas filled pipe type cable |
| CN1162822A (en) * | 1997-02-14 | 1997-10-22 | 吴江市盛泽通信电缆厂 | skin/foam/skin physical foaming cable and manufacturing process thereof |
| CN200959252Y (en) * | 2006-09-29 | 2007-10-10 | 江苏东强股份有限公司 | Low-smoke and low-halogen light-rail telecommunication cable |
| CN102254601A (en) * | 2011-05-11 | 2011-11-23 | 中国西电集团公司 | Compressive skin-foam-skin insulated single wire and preparation method thereof |
| CN202153450U (en) * | 2011-08-12 | 2012-02-29 | 安徽天明电缆有限公司 | Anti-cracking cable |
| CN102664073A (en) * | 2012-05-28 | 2012-09-12 | 南京全信传输科技股份有限公司 | Vessel low-smoke halogen-free low-toxicity rat-proof digital-signal super-category-five communication cable |
| CN202473348U (en) * | 2012-03-27 | 2012-10-03 | 安徽天龙电器线缆集团有限公司 | Two-core data cable used for rail haulage motor |
| CN202677961U (en) * | 2012-06-29 | 2013-01-16 | 江苏亨通线缆科技有限公司 | Data-signal flexible cable used for city track traffic |
| CN203102949U (en) * | 2013-01-22 | 2013-07-31 | 安徽新亚特电缆集团有限公司 | Railway digital signal cable |
| CN203826034U (en) * | 2014-02-23 | 2014-09-10 | 安徽华海特种电缆集团有限公司 | Low smoke halogen-free anti-interference railway data signal electric cable |
-
2014
- 2014-02-23 CN CN201410065310.1A patent/CN103871560B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4783576A (en) * | 1987-10-01 | 1988-11-08 | Pirelli Cable Corporation | High voltage gas filled pipe type cable |
| CN1162822A (en) * | 1997-02-14 | 1997-10-22 | 吴江市盛泽通信电缆厂 | skin/foam/skin physical foaming cable and manufacturing process thereof |
| CN200959252Y (en) * | 2006-09-29 | 2007-10-10 | 江苏东强股份有限公司 | Low-smoke and low-halogen light-rail telecommunication cable |
| CN102254601A (en) * | 2011-05-11 | 2011-11-23 | 中国西电集团公司 | Compressive skin-foam-skin insulated single wire and preparation method thereof |
| CN202153450U (en) * | 2011-08-12 | 2012-02-29 | 安徽天明电缆有限公司 | Anti-cracking cable |
| CN202473348U (en) * | 2012-03-27 | 2012-10-03 | 安徽天龙电器线缆集团有限公司 | Two-core data cable used for rail haulage motor |
| CN102664073A (en) * | 2012-05-28 | 2012-09-12 | 南京全信传输科技股份有限公司 | Vessel low-smoke halogen-free low-toxicity rat-proof digital-signal super-category-five communication cable |
| CN202677961U (en) * | 2012-06-29 | 2013-01-16 | 江苏亨通线缆科技有限公司 | Data-signal flexible cable used for city track traffic |
| CN203102949U (en) * | 2013-01-22 | 2013-07-31 | 安徽新亚特电缆集团有限公司 | Railway digital signal cable |
| CN203826034U (en) * | 2014-02-23 | 2014-09-10 | 安徽华海特种电缆集团有限公司 | Low smoke halogen-free anti-interference railway data signal electric cable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098184A (en) * | 2016-07-07 | 2016-11-09 | 李保集 | A kind of high reliability cable for rail transit vehicles |
| CN108257728A (en) * | 2018-01-17 | 2018-07-06 | 张家港特恩驰电缆有限公司 | A kind of discrete shielding tape and its manufacturing method for data telecommunication line cable |
| CN108257728B (en) * | 2018-01-17 | 2023-08-15 | 上海电气集团腾恩驰科技(苏州)有限公司 | Discontinuous shielding tape for data communication cable and manufacturing method thereof |
| CN108831597A (en) * | 2018-05-02 | 2018-11-16 | 沪如科技南京有限公司 | A kind of ceramic silica gel cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103871560B (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103854802B (en) | A kind of low smoke and zero halogen rat-and-ant proof railway digital signal cable | |
| CN101707067A (en) | Low-smoke halogen-free flame-retardant multifunctional armored cable for ship and marine engineering | |
| CN204130258U (en) | Naval vessel low-smoke non-halogen flame-retardant surpasses six class digital communication local area network cables | |
| CN102347103B (en) | Hard EPR (ethylene propylene rubber) insulated instrument cable for ships and oceans and manufacturing method thereof | |
| CN201673727U (en) | Armoured shielding type audio-frequency cable for ship and oceaneering | |
| CN103871560B (en) | The anti-interference railway digital signal cable of a kind of low smoke and zero halogen | |
| CN101901644A (en) | Low-smoke halogen-free flame-retardant comprehensive shielding subway light rail signal cable | |
| CN203826034U (en) | Low smoke halogen-free anti-interference railway data signal electric cable | |
| CN203826120U (en) | Low-smoke halogen-free mouse-and-ant-resistant railway digital signal cable | |
| CN202601311U (en) | Armored communication cable applied for foundation on-site bus system | |
| CN105825946A (en) | Marine fire-resistant frequency-variable cable | |
| CN203659463U (en) | A multi-composite highly-electromagnetic shielding rail traffic communication signal cable | |
| CN201425847Y (en) | Low smoke HFFR combined shielding metro light rail signal cable | |
| CN210575192U (en) | High-shielding anti-interference photoelectric composite ultrahigh-voltage power cable | |
| CN205004098U (en) | Compensation control generalized type cable | |
| WO2021128522A1 (en) | Shielding film for cable and method for connecting cable and connector | |
| CN202473349U (en) | Four-core data cable for rail locomotive | |
| CN106356129A (en) | Photoelectric composite cable for building field | |
| CN202650703U (en) | Light-weight and thin-wall insulated communication cable used in ships and warships | |
| CN202473348U (en) | Two-core data cable used for rail haulage motor | |
| CN206179546U (en) | Comprehensive protection type middling pressure subway cable | |
| CN201256015Y (en) | Low-smoke nontoxic observing and controlling signal cable for inboard monitoring system | |
| CN204991269U (en) | Current collection power and signal transmission in special cable of an organic whole | |
| CN203311901U (en) | Light fireproof signal cable | |
| CN104835591A (en) | Anti-mouse telephone lead-in line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |