CN103700434B - For the flame-retardant flexible electric cable of rail traffic signal system - Google Patents
For the flame-retardant flexible electric cable of rail traffic signal system Download PDFInfo
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- CN103700434B CN103700434B CN201310646813.3A CN201310646813A CN103700434B CN 103700434 B CN103700434 B CN 103700434B CN 201310646813 A CN201310646813 A CN 201310646813A CN 103700434 B CN103700434 B CN 103700434B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
The present invention discloses a kind of flame-retardant flexible electric cable for rail traffic signal system, comprises three shielding wire groups, and this shielding wire group comprises that two stranded by 7 first zinc-plated copper wires and the stranded single line that becomes; This stranded single line outside surface has a single line insulation layer; Two stranded single lines are wrapped coated by dimer ester band, and this dimer ester band outside surface covers wired resistance screen layer, and a line intercepts absciss layer and is coated on described line resistance screen layer outside surface; Described single line insulation layer is made up of outer single line insulation layer and interior single line insulation layer, and outer single line insulation layer forms by with llowing group of materials: true qualities crosslinked polyethylene material 1%��3%, plastic color master material 97%��99%; Line intercepts absciss layer and comprises synthetic mica paper, and these synthetic mica paper both sides are all covered with glass cloth by silicon resin adhesive layer. Flexible cable of the present invention can eliminate the metal particle being distributed in the colour batch around conductor to the impact of electric field, thus reduces the transmission attenuation of cable; And improve mechanical and physical performance and light, the hot ageing resistance of insulation layer, the performance index of product are improved.
Description
Technical field
The present invention relates to numeral field of cables, it is specifically related to a kind of flame-retardant flexible electric cable for rail traffic signal system.
Background technology
In signalling system, for the signal cable of signal, its conductor is single core copper conductor, and cable shield is the vertical bag or wrapped of copper strips, and the armouring mode of cable is two wrapped armourings of steel band. Conventional signal cable does not possess fire-retardant and fire-resistant dual-use function. The signal cable of said structure, conductor is hardening due to factors such as heating, oxidations in life-time service process, become crisp, causes end easily to rupture; The structure limitation of cable makes that its bending property is poor, the flame-retardant poor performance of cable.
Summary of the invention
It is an object of the present invention to provide a kind of flame-retardant flexible electric cable for rail traffic signal system, this can eliminate the metal particle being distributed in the colour batch around conductor to the impact of electric field for the flame-retardant flexible electric cable of rail traffic signal system, thus reduces the transmission attenuation of cable; And improve mechanical and physical performance and light, the hot ageing resistance of insulation layer, and mature production technology is stablized, the performance index of product are improved.
For achieving the above object, the technical solution used in the present invention is: a kind of flame-retardant flexible electric cable for rail traffic signal system, it transmits for security signal in track traffic, comprise by the first wrapped three coated shielding wire groups of polyester belt, this shielding wire group comprises that two stranded by 7 first zinc-plated copper wires and the stranded single line that becomes, in described 7 first zinc-plated copper wires, 1 first zinc-plated copper wire is positioned at central position, and all the other 6 first zinc-plated copper wires are stranded in the described first zinc-plated copper wire surface being positioned at center;
This stranded single line outside surface has a single line insulation layer,
Described two stranded single lines are wrapped coated by dimer ester band, and this dimer ester band outside surface covers wired group screen and covers layer, and a line group sealing coat is coated on described line group screen layer outside surface; One line group drainage line between described dimer ester band and line group screen layer,
One cable fire-resistant wrapping tape layer is coated on described first polyester belt outside surface;
One cable shield armor layer is coated on described cable fire-resistant wrapping tape layer outside surface;
One protective coverings of cable is coated on described cable shield armor layer outside surface;
Described single line insulation layer is by outer single line insulation layer and is positioned at the single line insulation layer inside it and forms, interior single line insulation layer accounts for the 95% of described single line thickness of insulating layer, interior single line insulation layer is that true qualities are crosslinked polyetylene insulated, and outer single line insulation layer forms by with the material of following mass percentage:
True qualities crosslinked polyethylene material 1%��3%,
Plastic color master material 97%��99%;
Described line group sealing coat comprises synthetic mica paper, and these synthetic mica paper both sides are all covered with glass cloth by silicon resin adhesive layer;
Described cable shield armor layer is woven by multiply welding wire, and this welding wire is made up of the layers of copper that the steel wire and outside surface that are positioned at center are coated, and this welding wire diameter is �� 0.15mm; The 2nd zinc-plated copper wire that described line group screen layer is �� 0.10mm by multiply diameter weaves, and knitting tightness is not less than 90%, and shielding suppresses coefficient to be not more than 0.07;
The number of plies that in described cable fire-resistant wrapping tape layer, fire-resistant wrapping tape is wrapped is 2 layers.
In technique scheme, further improvement opportunity scheme is as follows:
In such scheme, described line group drainage line is zinc-plated copper single line, its wire diameter �� 0.30���� 0.50mm.
Owing to technique scheme is used, the present invention compared with prior art has following advantage and effect:
1. the present invention is used for the flame-retardant flexible electric cable of rail traffic signal system, adopts the stranded conductor of the zinc-plated copper single line of multiply to substitute single core copper conductor, and conductor insulation adopts crosslinked polyetylene insulated; While guaranteeing cable softness, it is to increase long term operation temperature more than 20 DEG C, improve combined closure system more than 25% simultaneously; Transmission line group (to line group and quad) adopt zinc-plated copper wire carry out braiding shielding, it is achieved the electrical isolation between group, it is to increase interference performance between anti-group of cable; Adopt the fire-resistant sealing coat between synthetic mica tape wrapped formation line group, cable conductor is formed the flame retardant coating of cable conductor, it is to increase the refractory ability of cable; Induced current in the layers of copper transmission shielding on welding wire surface, is mainly electric field shielding layer; Center steel wire is magnetizer, is mainly magnetic field shielding layer; The more traditional shielding material (copper, aluminium etc.) of welding wire has higher physical strength, can bear bigger mechanism's external force. Said structure, while realizing the functional characteristicss such as the electric field shielding of cable, magnetic field shielding, cable protective layer function, simplifies cable sheath structure, and cable is soft, cost is low, is convenient to installation; Cable jacket adopts low smoke halogen-free fire retardant fire resistant sheath material, makes cable possess flame-retarding characteristic. Innovated by said structure and material, thus achieve while guaranteeing the transmission performance that cable is stable, it is to increase the snappiness of cable is good, the reliability that improves cable, it is to increase the flame-retardant characteristic of cable and environmental protection characteristic.
2. the present invention is used for the flame-retardant flexible electric cable of rail traffic signal system, described single line insulation layer is by outer single line insulation layer and is positioned at the single line insulation layer inside it and forms, interior single line insulation layer accounts for the 95% of described single line thickness of insulating layer, interior single line insulation layer is that true qualities are crosslinked polyetylene insulated, outer single line insulation layer forms by with the material of following mass percentage: true qualities crosslinked polyethylene material 1%��3%, plastic color master material 97%��99%; Both there is the feature substituting traditional insulation mode, colour batch content more than 90% can be reduced again, thus the cost of insulating material is reduced, colour batch is only distributed in the extexine of insulated single wire, eliminate the metal particle being distributed in the colour batch around conductor to the impact of electric field, reduce the transmission attenuation of cable, it is to increase the ageing resistance of the mechanical and physical performance of insulation layer and light, heat, and mature production technology is stable, the performance index of product are improved.
3. the present invention is used for the flame-retardant flexible electric cable of rail traffic signal system, described cable shield armor layer is woven by multiply welding wire, this welding wire is made up of the layers of copper that the steel wire and outside surface that are positioned at center are coated, this welding wire diameter is �� 0.10���� 0.15mm, induced current in the layers of copper transmission shielding on welding wire surface, is mainly electric field shielding layer; Center steel wire is magnetizer, is mainly magnetic field shielding layer; The more traditional shielding material (copper, aluminium etc.) of welding wire has higher physical strength, bigger mechanism's external force can be born, while realizing the functional characteristicss such as the electric field shielding of cable, magnetic field shielding, cable protective layer function, simplify cable sheath structure, cable is soft, cost is low, is convenient to installation.
Accompanying drawing explanation
Accompanying drawing 1 is shielding wire group structural representation of the present invention;
Accompanying drawing 2 is single line insulation layer structure schematic diagram of the present invention;
Accompanying drawing 3 is for the present invention is for the flame-retardant flexible electric cable structural representation of rail traffic signal system;
Accompanying drawing 4 is line group insulation layer structure schematic diagram of the present invention;
Accompanying drawing 5 is welding wire structural representation of the present invention.
In above accompanying drawing: 1, the first polyester belt; 2, shielding wire group; 3, the first zinc-plated copper wire; 4, stranded single line; 5, single line insulation layer; 51, outer single line insulation layer; 52, interior single line insulation layer; 6, dimer ester band; 7, line group screen layer; 8, line group sealing coat; 81, synthetic mica paper; 82, silicon resin adhesive layer; 83, glass cloth; 9, line group drainage line; 10, cable fire-resistant wrapping tape layer; 11, cable shield armor layer; 12, protective coverings of cable; 13, welding wire; 131, steel wire; 132, layers of copper.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: a kind of flame-retardant flexible electric cable for rail traffic signal system, comprise by the first wrapped three coated shielding wire groups 2 of polyester belt 1, this shielding wire group 2 comprises that two stranded by 7 first zinc-plated copper wires 3 and the stranded single line 4 that becomes, in described 7 first zinc-plated copper wires 3,1 first zinc-plated copper wire is positioned at central position, and all the other 6 first zinc-plated copper wires are stranded in the described first zinc-plated copper wire surface being positioned at center;
This stranded single line 4 outside surface has a single line insulation layer 5,
Described two stranded single lines 4 are wrapped coated by dimer ester band 6, and this dimer ester band 6 outside surface covers wired group screen and covers layer 7, and a line group sealing coat 8 is coated on described line group screen layer 7 outside surface; One line group drainage line 9 between described dimer ester band 6 and line group screen layer 7,
One cable fire-resistant wrapping tape layer 10 is coated on described first polyester belt 1 outside surface;
One cable shield armor layer 11 is coated on described cable fire-resistant wrapping tape layer 10 outside surface;
One protective coverings of cable 12 is coated on described cable shield armor layer 11 outside surface;
Described single line insulation layer 5 is by outer single line insulation layer 51 and is positioned at the single line insulation layer 52 inside it and forms, interior single line insulation layer 52 accounts for the 95% of described single line insulation layer 5 thickness, interior single line insulation layer 52 is that true qualities are crosslinked polyetylene insulated, and outer single line insulation layer 51 forms by with the material of following mass percentage:
True qualities crosslinked polyethylene material 1%��3%,
Plastic color master material 97%��99%;
Described line group sealing coat 8 comprises synthetic mica paper 81, and these synthetic mica paper 81 both sides are all covered with glass cloth 83 by silicon resin adhesive layer 82;
Described cable shield armor layer 11 is woven by multiply welding wire 13, and this welding wire 13 is made up of the layers of copper 132 that the steel wire 131 and outside surface that are positioned at center are coated, and this welding wire 13 diameter is �� 0.15mm; The 2nd zinc-plated copper wire that described line group screen layer 7 is �� 0.10mm by multiply diameter weaves, and knitting tightness is not less than 90%, and shielding suppresses coefficient to be not more than 0.07;
The number of plies that in described cable fire-resistant wrapping tape layer 10, fire-resistant wrapping tape is wrapped is 2 layers.
Above-mentioned line group drainage line is zinc-plated copper single line, its wire diameter �� 0.30���� 0.50mm.
Above-described embodiment, only for the technical conceive of the present invention and feature are described, its object is to allow person skilled in the art can understand the content of the present invention and implement according to this, can not limit the scope of the invention with this. All equivalences done according to spirit of the invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. the flame-retardant flexible electric cable for rail traffic signal system, it is characterized in that: comprise by wrapped three the coated shielding wire groups (2) of the first polyester belt (1), this shielding wire group (2) comprises that two stranded by 7 first zinc-plated copper wires (3) and the stranded single line (4) that becomes, in described 7 first zinc-plated copper wires (3), 1 first zinc-plated copper wire is positioned at central position, and all the other 6 first zinc-plated copper wires are stranded in the described first zinc-plated copper wire surface being positioned at center;
This stranded single line (4) outside surface has a single line insulation layer (5),
Described two stranded single lines (4) are wrapped coated by dimer ester band (6), and this dimer ester band (6) outside surface covers wired group screen and covers layer (7), and line group sealing coat (8) is coated on described line group screen layer (7) outside surface; One line group drainage line (9) is positioned between described dimer ester band (6) and line group screen layer (7),
One cable fire-resistant wrapping tape layer (10) is coated on described first polyester belt (1) outside surface;
One cable shield armor layer (11) is coated on described cable fire-resistant wrapping tape layer (10) outside surface;
One protective coverings of cable (12) is coated on described cable shield armor layer (11) outside surface;
Described single line insulation layer (5) is by outer single line insulation layer (51) and is positioned at the single line insulation layer (52) inside it and forms, interior single line insulation layer (52) accounts for the 95% of described single line insulation layer (5) thickness, interior single line insulation layer (52) for true qualities crosslinked polyetylene insulated, outer single line insulation layer (51) forms by with the material of following mass percentage:
True qualities crosslinked polyethylene material 1%��3%,
Plastic color master material 97%��99%;
Described line group sealing coat (8) comprises synthetic mica paper (81), and these synthetic mica paper (81) both sides are all covered with glass cloth (83) by silicon resin adhesive layer (82);
Described cable shield armor layer (11) is woven by multiply welding wire (13), and this welding wire (13) is made up of the layers of copper (132) that the steel wire (131) and outside surface that are positioned at center are coated, and this welding wire (13) diameter is �� 0.15mm; The 2nd zinc-plated copper wire that described line group screen layer (7) is �� 0.10mm by multiply diameter weaves, and knitting tightness is not less than 90%, and shielding suppresses coefficient to be not more than 0.07;
The number of plies that in described cable fire-resistant wrapping tape layer (10), fire-resistant wrapping tape is wrapped is 2 layers.
2. the flame-retardant flexible electric cable for rail traffic signal system according to claim 1, it is characterised in that: described line group drainage line is zinc-plated copper single line, its wire diameter �� 0.30���� 0.50mm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210220808.1A CN102768879B (en) | 2012-06-29 | 2012-06-29 | Flame retardant fire-resistant track traffic signal flexible cable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210220808.1A Division CN102768879B (en) | 2012-06-29 | 2012-06-29 | Flame retardant fire-resistant track traffic signal flexible cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103700434A CN103700434A (en) | 2014-04-02 |
| CN103700434B true CN103700434B (en) | 2016-06-01 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310420265.2A Active CN103531297B (en) | 2012-06-29 | 2012-06-29 | Transmission fire-resistant flexible communication cable for traffic signal |
| CN201310646813.3A Active CN103700434B (en) | 2012-06-29 | 2012-06-29 | For the flame-retardant flexible electric cable of rail traffic signal system |
| CN201210220808.1A Active CN102768879B (en) | 2012-06-29 | 2012-06-29 | Flame retardant fire-resistant track traffic signal flexible cable |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310420265.2A Active CN103531297B (en) | 2012-06-29 | 2012-06-29 | Transmission fire-resistant flexible communication cable for traffic signal |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210220808.1A Active CN102768879B (en) | 2012-06-29 | 2012-06-29 | Flame retardant fire-resistant track traffic signal flexible cable |
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| CN (3) | CN103531297B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913922A (en) * | 2013-12-04 | 2016-08-31 | 江苏亨通线缆科技有限公司 | Flame retardation cable for track traffic signal systems |
| CN112687427A (en) * | 2020-12-16 | 2021-04-20 | 深圳市速联技术有限公司 | High-temperature-resistant signal transmission line and processing method |
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| CN200959246Y (en) * | 2006-10-23 | 2007-10-10 | 扬州市红旗电缆制造有限公司 | Cross-linked fire-retardant composite shielded armoured electric cable for port load-unloading control system |
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| DE3373039D1 (en) * | 1982-10-01 | 1987-09-17 | Raychem Ltd | Electric wire with flame retarded cladding |
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| CN201449795U (en) * | 2009-03-30 | 2010-05-05 | 江苏天诚线缆集团有限公司 | Compound audio control cable for locomotive |
| CN201430024Y (en) * | 2009-06-11 | 2010-03-24 | 扬州市金阳光电缆有限公司 | Fireproof anti-explosion signal cable for mine safety system |
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2012
- 2012-06-29 CN CN201310420265.2A patent/CN103531297B/en active Active
- 2012-06-29 CN CN201310646813.3A patent/CN103700434B/en active Active
- 2012-06-29 CN CN201210220808.1A patent/CN102768879B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200959246Y (en) * | 2006-10-23 | 2007-10-10 | 扬州市红旗电缆制造有限公司 | Cross-linked fire-retardant composite shielded armoured electric cable for port load-unloading control system |
| CN201025585Y (en) * | 2007-03-06 | 2008-02-20 | 常州八益电缆有限公司 | Low smoke no halogen combustion retarding cable |
| CN201126739Y (en) * | 2007-12-04 | 2008-10-01 | 扬州市红旗电缆制造有限公司 | Strong interference resistance environmental signal observing-and-control cable for ship safety monitoring system |
| CN102347103A (en) * | 2011-06-28 | 2012-02-08 | 江苏远洋东泽电缆股份有限公司 | Hard EPR (ethylene propylene rubber) insulated instrument cable for ships and oceans and manufacturing method thereof |
| CN102364587A (en) * | 2011-10-25 | 2012-02-29 | 江苏亨通线缆科技有限公司 | Low-attenuation electric wire cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102768879A (en) | 2012-11-07 |
| CN102768879B (en) | 2014-04-02 |
| CN103531297A (en) | 2014-01-22 |
| CN103700434A (en) | 2014-04-02 |
| CN103531297B (en) | 2015-08-12 |
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