CN105374419A - Power control composite braided shielding fireproof flexible cable for city track traffic - Google Patents
Power control composite braided shielding fireproof flexible cable for city track traffic Download PDFInfo
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- CN105374419A CN105374419A CN201510893046.5A CN201510893046A CN105374419A CN 105374419 A CN105374419 A CN 105374419A CN 201510893046 A CN201510893046 A CN 201510893046A CN 105374419 A CN105374419 A CN 105374419A
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- cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0291—Disposition of insulation comprising two or more layers of insulation having different electrical properties
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The invention provides a power control composite braided shielding fireproof flexible cable for city track traffic. The cable comprises a DC power cable core and control wire cores. The DC power cable core successively comprises DC power cable conductors, an extruded DC power cable insulation part, a wrapped first flame-retardant band, a longitudinally wrapped plastic-aluminum composite band and an extruded first inner sheath layer from the inside to the outside; each control wire core at least comprises a control wire core conductor, a mica tape or a control core insulation part, and the control wire cores are pulled directly and are concentric with the DC power cable conductor, a second inner sheath layer is wrapped between the outside of the control wire cores and intervals in a tube-squeezing mode, and the second inner sheath layer is externally successively provided with a copper wire braiding and coating flame-retardant material layer and an extruded oversheath layer from the inside to the outside. The cable provided by the invention has the advantages of quite high insulation performance, A-grade flame retardation, low smoke, zero halogen, fire resistance, water resistance, mice and ant resistance, ultraviolet prevention, electric field interference immunity, good flexibility, good bending performance and compact structure, and at the same time, can have power transmission and control, signal, protection and measurement effects.
Description
Technical field
Patent of the present invention relates to field of cable technology, specifically, relates generally to the composite braided shielding fire-resisting flexible cable of the dynamic control of a kind of urban track traffic.
Background technology
Urban track traffic is the major measure that traffic environment is improved in current international big city, due to the particularity of track traffic, high to the fail safe of electric power system, reliability requirement.And subway, light rail cable lay circumstance complication, prior art products often can not meet the various rigors laid simultaneously; The environment for use of urban light rail subway cable mostly is densely populated underground, once breaking out of fire, the environment of underground sealed brings very large difficulty to personnel escape and fire-fighting work.Therefore require higher to fire resistance, fire resistance will meet the requirement of A level in GB/T18380.3.Meanwhile, during burning, the release of smog and toxic gas can hinder firemanic carrying out, and sour gas all can damage people and equipment, therefore also has higher requirement to the burst size of smog during burning and toxic gas; Urban light rail subway cable is due to the effect of environment and meteorologic factor, cable likely lay in a humidity environment by the long period, hydrone likely immerses cable, invade cable inside, absorbed by insulation absorption, cause the decline of electric property, the oxidation of conductor, corrosion can be caused, not only affect the electrical property of cable, and time serious, abnormal broken line accident can occur, cable will have water-proof function; Urban light rail subway cable is laid in underground for a long time, and be easily subject to the attack of toy (as muroid, ant class), affect the performance of cable, cable should have termite-resistant rodent-resistant function; If urban light rail subway cable cable is not use in subway, but be laid in elevated railway, so just may stand the test of solar radiation and various meteorological condition for a long time, the sheath of cable is for a long time by solar radiation, easily there is color fading, mechanical and physical performance declines the even phenomenon such as cracking, and cable should have anti-ultraviolet function; Urban light rail subway cable laying limited space, requires direct current cables lightweight on the one hand, flexible, radius of turn is little.On the other hand, the cable type laid in roughing-in is many, quantity is many, need the outside diameter of cable little, easily lay; Urban light rail subway is except needing a large amount of power cables, also need use a large amount of control, signal, protection and measure cable, prior art is owing to considering the factor of electric interfering field, often power cable and control, signal, protection and measure cable and process separately, lay respectively, this not only brings difficulty to construction, too increases use and construction cost; And due to control, signal, protection and to measure the wire core diameter of cable less, tensile strength is lower, easily abrades or break in laid processes.
Summary of the invention
The object of this invention is to provide and a kind ofly have that higher insulation property, fire-retardant A level, low smoke and zero halogen, fire-resistant, waterproof, termite-resistant rodent-resistant, antiultraviolet, anti-electric jamming, flexibility are good, good bending property, compact conformation, and play the composite braided shielding fire-resisting flexible cable of the dynamic control of urban track traffic of electric energy transmitting and control, signal, protection and measurement simultaneously.
A kind of urban track traffic of the present invention composite braided shielding fire-resisting flexible cable of dynamic control, comprises insulation DC electric cable cable core and at least two control conductor.Described insulation DC electric cable cable core comprises insulation DC electric cable conductor, the insulation DC electric cable insulation extruded, the first wrapped inhibiting tape from inside to outside successively, indulges the aluminium-plastic tape wrapped, the first inner restrictive coating extruded; Described control conductor at least comprises control conductor conductor, control conductor insulation, control conductor directly drags and concentric with insulation DC electric cable conductor, squeeze tubular type outside control conductor and between interval and be extruded with the second inner restrictive coating, the second inner restrictive coating has proof copper-wire braided and the external sheath layer applying flame retarding material, extrude outward from inside to outside successively.
Further improvement, is surrounded with mica tape outside described control conductor conductor or control conductor insulation is Ceramic silicon rubber insulation.
Further improvement, described first inhibiting tape, the second inhibiting tape are alkali-free glass fibre band or Ceramic silicon rubber band, preferential Ceramics SiClx rubber strip.
Further improvement, the described first fire-resistant inner restrictive coating is Ceramic silicon rubber sheath.
Further improvement, the described second fire-resistant inner restrictive coating is Ceramic silicon rubber sheath.
Further improvement, described proof copper-wire braided is with coating flame retarding material, and coating fire proofing is Ceramic silicon rubber coating material.
Improve further, described external sheath layer is low-smoke halogen-free flame-retardant sheath material again.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
(1) have higher insulation property, and adopt low cigarette without compared with (low) halogen flame-proof cross-linking polyolefin insulation in prior art, the electricity function indexs such as the insulation resistance constant of cable and specific insulation can not reduce, and maintain higher insulation property.
(2) fire-retardant A level, fire-resistant, the combining structure of multi-layer fire-retarded band, multi-layer ceramics SiClx rubber sheath, coating silicon rubber, makes cable reach the requirement of fire-retardant A level, and in category-A burning test, jacket surface carbonized part length can meet national standard requirement.The crust of Ceramic silicon rubber band, Ceramic silicon rubber sheath, coating silicon rubber is also fine, after flame combustion, the silica duricrust parcel that precipitation water transform Cheng Burong does not fire stops flame to enter in insulation, has also completely cut off the contact of insulation with extraneous oxygen, the intensity of a fire is controlled.
(3) low smoke, zero halogen, the first inner restrictive coating, the second inner restrictive coating, external sheath layer, multi-layer fire-retarded band are all low smoke and zero halogen materials.Light transmittance, halogen acid gas burst size, pH value, conductivity all meet standard-required and have very large surplus, when cable material and cable smoke density test burn, light transmittance is less than 60%, halogen acid gas burst size when taking from the material combustion of cable is less than 5mg/g, the water-soluble pH value discharging gas when taking from the material combustion of cable is greater than 4.3, and the conductivity of the aqueous solution is less than 10 μ s/mm.
(4) waterproof, the aluminium-plastic tape of duplex sheath, vertical bag can increase radial water proofing property, squeezes tubular type sheath, makes gap between control conductor minimum, can play longitudinal waterproof action.
(5) termite-resistant rodent-resistant, capsicim is added in sheath material, adopt capsicim as anti-termite agent, the oral mucosa of murine and olfactory nerves can be made to be subject to intense stimulus and to detest and reject to chew to cut, can hit again simultaneously and kill termite, there is difunctional nontoxic, environmental protection, nuisanceless, effective component content is high, addition is little, the term of validity is long.
(6) antiultraviolet, oversheath adopts the material of ultraviolet resistance or in sheath material, adds the auxiliary agents such as UV resistant absorbent to improve the performance of material, the test of solar radiation and various meteorological condition can be stood for a long time, the sheath of cable, for a long time by solar radiation, there will not be color fading, mechanical and physical performance to decline the even phenomenon such as cracking.
(7) anti-electric jamming, the vertical aluminium-plastic tape of bag, the copper wire of braiding can play shielding action, can make direct current cables and control cables synchronous working but non-interference electric field.
(8) good, the good bending property of flexibility, conductor adopts 5 class conductors more more soft than 2 class conductors, insulation adopts second third to insulate more more soft than crosslinked polyetylene insulated, braid shielded structure is also more soft than lapping structure, good bending property, bending radius very little and tolerance vibrations, radius of turn can be used in and require strict place.
(9) compact conformation, control conductor and power wire core are concentric structure, and external diameter is little.
(10) play electric energy transmitting and control, signal, protection and measurement effect, direct current power cable core transmits and distributes electric energy in power circuit simultaneously.Control cable core transmission of signal or control operation between the heart and system in the controlling, or for the protection of, measure.Direct current power cable core and control cable core are combined with each other, and not only save material, cost of manufacture, and can construct simultaneously, reduce construction times and operating expenses.It also avoid because of cable laying narrow space, during construction, easily damage the problem of tiny control cables core.
Accompanying drawing explanation
Below with reference to accompanying drawing, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Wherein, 1, control conductor conductor, 2, control conductor insulation, 3, insulation DC electric cable conductor, 4, insulation DC electric cable insulation, 5, the first inhibiting tape, 6, aluminium-plastic tape, the 7, first fire-resistant inner restrictive coating, the 8, second fire-resistant inner restrictive coating, 9, copper wire and glass fiber mixed weaving layer, 10, external sheath layer.
Embodiment
The invention provides the composite braided shielding fire-resisting flexible cable of the dynamic control of a kind of urban track traffic, for making object of the present invention, clearly, clearly, and the present invention is described in more detail with reference to accompanying drawing examples for technical scheme and effect.Should be appreciated that concrete enforcement described herein is only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the urban track traffic provided by the present invention composite braided shielding fire-resisting flexible cable of dynamic control, comprises insulation DC electric cable cable core and at least two control conductor.Described insulation DC electric cable cable core comprises insulation DC electric cable conductor 3, the insulation DC electric cable insulation 4 extruded, the first wrapped inhibiting tape 5 from inside to outside successively, indulges the aluminium-plastic tape 6 wrapped, the first inner restrictive coating 7 extruded; Described control conductor at least comprises control conductor conductor 1 and mica tape or control conductor and insulate 2, control conductor directly drags and concentric with insulation DC electric cable conductor 4, squeeze tubular type outside control conductor and between interval and be extruded with the outer external sheath layer 10 having proof copper-wire braided from inside to outside successively and apply flame retarding material 9, extrude of the second inner restrictive coating 8, second inner restrictive coating 8.
Wherein, be surrounded with mica tape or control conductor insulation 2 outside control conductor conductor 1, this control conductor insulation 2 is Ceramic silicon rubber insulation, and the first inhibiting tape 5 is alkali-free glass fibre band or Ceramic silicon rubber band, preferential Ceramics SiClx rubber strip; The fire-resistant inner restrictive coating 8 of first fire-resistant inner restrictive coating 7, second is Ceramic silicon rubber sheath; Proof copper-wire braided is with coating flame retarding material 9, and coating fire proofing is Ceramic silicon rubber coating material; External sheath layer 10 is low-smoke halogen-free flame-retardant sheath material, preferentially select low-smoke halide-free fireproof composite polyolefine material, preferentially select with the material of ultraviolet resistance or in sheath material, add the auxiliary agents such as UV resistant absorbent to improve the performance of material, preferentially selecting and add capsicim as anti-termite agent in sheath material.
Conductor of the present invention is the naked annealed copper conductor meeting GB/T3956-2008 commonly used of cable or metal cladding annealed copper conductor, the hard circular copper wire of multiply comprising compacting pressing forms the 5 class conductors etc. of 2 class conductors or the soft circular copper wire composition of non-multiply of pressing, and preferentially selects wire core diameter to be less than the zinc-plated 5 class conductors of 0.5mm.
Insulation is crosslinked polyethylene or ethylene-propylene rubber, preferentially selects ethylene-propylene rubber.
The invention provides the composite braided shielding fire-resisting flexible cable of the dynamic control of a kind of urban track traffic; the above is only preferred implementation method of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (7)
1. the urban track traffic composite braided shielding fire-resisting flexible cable of dynamic control, comprise insulation DC electric cable cable core and at least two control conductor, it is characterized in that, described insulation DC electric cable cable core comprises insulation DC electric cable conductor, the insulation DC electric cable insulation extruded, the first wrapped inhibiting tape from inside to outside successively, indulges the aluminium-plastic tape wrapped, the first inner restrictive coating extruded; Described control conductor at least comprises control conductor conductor and mica tape or control conductor and insulate, control conductor directly drags and concentric with insulation DC electric cable conductor, squeeze tubular type outside control conductor and between interval and be extruded with the second inner restrictive coating, the second inner restrictive coating has proof copper-wire braided and the external sheath layer applying flame retarding material, extrude outward from inside to outside successively.
2. a kind of urban track traffic according to claim 1 composite braided shielding fire-resisting flexible cable of dynamic control, is characterized in that, is surrounded with mica tape or control conductor insulation outside described control conductor conductor, and described control conductor insulation is Ceramic silicon rubber insulation.
3. a kind of urban track traffic according to claim 1 composite braided shielding fire-resisting flexible cable of dynamic control, it is characterized in that, described first inhibiting tape is alkali-free glass fibre band or Ceramic silicon rubber band.
4. a kind of urban track traffic according to claim 1 composite braided shielding fire-resisting flexible cable of dynamic control, it is characterized in that, the described first fire-resistant inner restrictive coating is Ceramic silicon rubber sheath.
5. a kind of urban track traffic according to claim 1 composite braided shielding fire-resisting flexible cable of dynamic control, it is characterized in that, the described second fire-resistant inner restrictive coating is Ceramic silicon rubber sheath.
6. a kind of urban track traffic according to claim 1 composite braided shielding fire-resisting flexible cable of dynamic control, is characterized in that, described proof copper-wire braided is with coating flame retarding material, and coating fire proofing is Ceramic silicon rubber coating material.
7. a kind of urban track traffic according to claim 1 composite braided shielding fire-resisting flexible cable of dynamic control, it is characterized in that, described external sheath layer is low-smoke halogen-free flame-retardant sheath material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510893046.5A CN105374419A (en) | 2015-12-08 | 2015-12-08 | Power control composite braided shielding fireproof flexible cable for city track traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510893046.5A CN105374419A (en) | 2015-12-08 | 2015-12-08 | Power control composite braided shielding fireproof flexible cable for city track traffic |
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| Publication Number | Publication Date |
|---|---|
| CN105374419A true CN105374419A (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510893046.5A Pending CN105374419A (en) | 2015-12-08 | 2015-12-08 | Power control composite braided shielding fireproof flexible cable for city track traffic |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202584757U (en) * | 2012-03-12 | 2012-12-05 | 江苏亨通线缆科技有限公司 | Highly flame-retardant fireproof symmetrical cable |
| CN204166927U (en) * | 2014-09-26 | 2015-02-18 | 湖北红旗电缆有限责任公司 | A kind of track traffic dynamic control composite cable |
| CN204558117U (en) * | 2015-05-12 | 2015-08-12 | 林鸿志 | A kind of antidetonation fireproof cable |
| CN205318868U (en) * | 2015-12-08 | 2016-06-15 | 无锡江南电缆有限公司 | Urban rail transit is with moving fire -resistant flexible cable of accuse combined braided shielding |
-
2015
- 2015-12-08 CN CN201510893046.5A patent/CN105374419A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202584757U (en) * | 2012-03-12 | 2012-12-05 | 江苏亨通线缆科技有限公司 | Highly flame-retardant fireproof symmetrical cable |
| CN204166927U (en) * | 2014-09-26 | 2015-02-18 | 湖北红旗电缆有限责任公司 | A kind of track traffic dynamic control composite cable |
| CN204558117U (en) * | 2015-05-12 | 2015-08-12 | 林鸿志 | A kind of antidetonation fireproof cable |
| CN205318868U (en) * | 2015-12-08 | 2016-06-15 | 无锡江南电缆有限公司 | Urban rail transit is with moving fire -resistant flexible cable of accuse combined braided shielding |
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Application publication date: 20160302 |
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