CN205354743U - Direct current flexible cable for track traffic - Google Patents
Direct current flexible cable for track traffic Download PDFInfo
- Publication number
- CN205354743U CN205354743U CN201620005640.6U CN201620005640U CN205354743U CN 205354743 U CN205354743 U CN 205354743U CN 201620005640 U CN201620005640 U CN 201620005640U CN 205354743 U CN205354743 U CN 205354743U
- Authority
- CN
- China
- Prior art keywords
- layer
- conductor
- track traffic
- outside
- water blocking
- 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.)
- Expired - Fee Related
Links
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a direct current flexible cable for track traffic, for the structure that embeds in proper order of coaxial setting, include: the conductor of compriseing zinc -plated soft copper conductor, the crosslinked polyethylene insulating layer of crowded package the conductor outside blocks water the area around the package water blocking layer, the fire -retardant polyethylene waterproof layer of crowded package outside the water blocking layer, crowded package or separate oxygen layer, the crowded restrictive coating that wraps outside separating the oxygen layer around the package outside the waterproof layer around the package outside the insulating layer. Compared with the prior art, the utility model discloses a there is not steamed low cigarette flame retardant polyolefin restrictive coating, it is fire -retardant, low cigarette, nontoxic, safety, environmental protection. This cable is high temperature resistant, corrosion -resistant, long service life, waterproof performance is good, fire behaviour is good and have certain fire resistance concurrently, installs, lays the convenience, adaptation humid environment, cable all by do not have to stew, nontoxic material makes safety, environmental protection.
Description
Technical field
This utility model relates to a kind of direct current cables, especially relates to a kind of track traffic DC soft cable.
Background technology
Along with domestic city construction develops rapidly, urban transportation is also increasingly blocked up, the track vehicle such as subway, light rail, because transport capacity is big, punctual, quick, safe, comfortable, save space, do not destroy ground environment, pollute the plurality of advantages such as little, becomes the first-selection of large size city transport solution bottleneck problem.In recent years, each metropolitan subway, subway, light rail are built one after another and extend.Proposing to build " four vertical four is horizontal " Line for Passenger Transportation plus country's " 12 " overall transportation system planning, domestic high ferro, PDL Construction are flourish.Developing rapidly of track traffic, drives rail transit line cabling requirements sharp increase.Owing to Rail Transit System requires safe, reliable, environmentally friendly, cable for rail transit is required high, generally require that cable waterproof is moistureproof, fire-retardant, nontoxic, environmental protection, easily construct.Typically now there is bigger gap with the performance requirement of cable for rail transit in cable in the performance such as moistureproof, fire-retardant and nontoxic.
Chinese patent ZL201220738467.2 discloses a kind of direct current cables, including the hollow conductor set gradually from inside to outside, conductor shielding, insulation, insulation shielding, metallic shield, sheath.The patented product perfect heat-dissipating, current-carrying capacity is big, and Electric Field Distribution is uniform, has higher disruptive field intensity.But the patented product is a kind of distribution system and current converter cable, the problem mainly solving the transmission of electricity of big electric current and disruptive field intensity, it is fire-retardant, moistureproof, avirulence can meet the demand of cable for rail transit.
Utility model content
Defect that the purpose of this utility model is contemplated to overcome above-mentioned prior art to exist and a kind of track traffic DC soft cable is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of track traffic DC soft cable, the structure of the nesting successively for being coaxially disposed, including:
The conductor being made up of tin plating soft copper conductor, it is extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene waterproof layer extruded outside water blocking layer, extrude outside waterproof layer or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer.
Described tin plating soft copper conductor is the 5th tin plating soft copper conductor of class meeting GB/T3956 standard.
Described crosslinked polyetylene insulated layer adopts warm water crosslinking mode or cross-linking radiation mode to make and obtain.
Described water blocking layer is the water blocking layer of the overlapping wrapped composition of multilamellar waterstop spiral.
The material composition proportioning of described waterstop is polyethylene 30 parts, nitrile rubber 40 parts, water-proofing powder (polyacrylic acid salt form resin) 30-60 part, maleic anhydride 7 parts, between waterstop wrapping angle 25 °～35 °.
Described oxygen barrier layer is that Ceramic silicon rubber extrudes or the oxygen barrier layer of wrapped composition.
Described Ceramic silicon rubber oxygen barrier layer adopts when packet mode, adopts overlapping wrapped, between wrapping angle 25 °～35 °.
Described restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Compared with prior art, this utility model has the advantage that
1, conductor adopts the 5th tin plating soft copper conductor of class, anticorrosion, high temperature resistant, and conductor structure is soft, it is simple to mounting and installation, bending radius is little, it is simple at narrow local mounting and installation.
2, adopt crosslinked polyetylene insulated, good insulation preformance.Thermosets, high temperature resistant, good mechanical property is become after insulation crosslinking.
3, the water blocking layer of the overlapping wrapped composition of multilamellar waterstop spiral can longitudinal waterproof, the flame-proof polyethylene waterproof layer extruded can radially waterproof, the waterproof and dampproof function admirable of cable, be particularly suited for the wet environment of underground.
4, oxygen barrier layer adopts and extrudes or wrapped Ceramic silicon rubber oxygen barrier layer, fire resistance is good, one layer of insulation duricrust sealed is become when 300 DEG C of high temperature above, stop high temperature and the flame injury to built-in electrical insulation and conductor, make cable when the fire resistance meeting GB/T19666 requires, also there is at a relatively high fire resistance.
5, halogen-free and low-smoke flame-retardant polyolefin sheathed cigarette, Halogen, environmental protection, safety are bent down at high temperature, flame condition.
6, its electric capacity of the ac cable of long length and reactance are all relatively big, and the loss and the voltage drop that cause because of induction reactance, capacitive reactance are bigger.The design of direct current cables makes cable not by the impact of induction reactance, capacitive reactance, it is simple to distance, low-voltage, big electric current are transmitted electricity.Because conductor adopts the 5th class tinned copper conductor, the form of the multiple strand of tin-coated copper single line therein employing is stranded to be formed, and copper single line back and forth changes in position radially, can greatly weaken kelvin effect, reduces induction reactance；Insulation adopts the crosslinked polyethylene that dielectric coefficient is minimum, and outer layer superposition has the water blocking layer of the effect of being dielectrically separated from, waterproof layer, oxygen barrier layer, restrictive coating so that internal electric field and external electric field spacing increase, and cable capacitance reduces.When being applied to straight-flow system, induction reactance, capacitive reactance will not be produced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1-conductor, 2-insulating barrier, 3-water blocking layer, 4-waterproof layer, 5-oxygen barrier layer, 6-restrictive coating.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
A kind of track traffic DC soft cable, its structure is as shown in Figure 1, for the structure nested successively being coaxially disposed, including the conductor 1 being made up of tin plating soft copper conductor, the insulating barrier 2 of the crosslinked polyethylene material being extruded in outside conductor 1, at the water blocking layer 3 of the outer wrapped wrapped formation of waterstop of insulating barrier 2, the waterproof layer 4 of the flame-proof polyethylene material extruded outside water blocking layer 3, extrude outside waterproof layer 4 or wrapped oxygen barrier layer 5, the restrictive coating 6 extruded outside oxygen barrier layer 5.
Wherein, the tin plating soft copper conductor of use is the 5th tin plating soft copper conductor of class meeting GB/T3956 standard；The insulating barrier 2 of crosslinked polyethylene material adopts warm water crosslinking mode or cross-linking radiation mode；Water blocking layer 3 is the water blocking layer of the overlapping wrapped composition of multilamellar waterstop spiral, the material composition proportioning of the waterstop used is polyethylene 30 parts, nitrile rubber 40 parts, water-proofing powder (polyacrylic acid salt form resin) 30-60 part, maleic anhydride 7 parts, between waterstop wrapping angle 25 °～35 °；The waterproof layer 4 of flame-proof polyethylene material；Oxygen barrier layer 5 extrudes for Ceramic silicon rubber or the oxygen barrier layer of wrapped composition, adopts when packet mode, adopts overlapping wrapped, between wrapping angle 25 °～35 °.The following is concrete case study on implementation.
Embodiment 1
A kind of track traffic DC soft cable, for the structure nested successively being coaxially disposed, including the conductor being made up of tin plating soft copper conductor, it is extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene waterproof layer extruded outside water blocking layer, extrudes or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer outside waterproof layer.
Wherein, the tin plating soft copper conductor of employing is the 5th tin plating soft copper conductor of class meeting GB/T3956 standard.Crosslinked polyetylene insulated layer employing warm water crosslinking mode makes and obtains.Water blocking layer is the water blocking layer of the overlapping wrapped composition of multilamellar waterstop spiral.The material composition proportioning of waterstop is polyethylene 30 parts, nitrile rubber 40 parts, water-proofing powder polyacrylic acid salt form resin 30 parts, maleic anhydride 7 parts, and waterstop wrapping angle is 25 °.Oxygen barrier layer is the oxygen barrier layer that Ceramic silicon rubber extrudes composition.Restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Embodiment 2
A kind of track traffic DC soft cable, for the structure nested successively being coaxially disposed, including the conductor being made up of tin plating soft copper conductor, it is extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene waterproof layer extruded outside water blocking layer, extrudes or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer outside waterproof layer.
Wherein, the tin plating soft copper conductor of employing is the 5th tin plating soft copper conductor of class meeting GB/T3956 standard.Crosslinked polyetylene insulated layer employing cross-linking radiation mode makes and obtains.Water blocking layer is the water blocking layer of the overlapping wrapped composition of multilamellar waterstop spiral.The material composition proportioning of waterstop is polyethylene 30 parts, nitrile rubber 40 parts, water-proofing powder polyacrylic acid salt form resin 40 parts, maleic anhydride 7 parts, and waterstop wrapping angle is 30 °.Oxygen barrier layer is the oxygen barrier layer that Ceramic silicon rubber adopts overlapping wrapped composition, wrapping angle 25 °.Restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Embodiment 3
A kind of track traffic DC soft cable, for the structure nested successively being coaxially disposed, including the conductor being made up of tin plating soft copper conductor, it is extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene waterproof layer extruded outside water blocking layer, extrudes or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer outside waterproof layer.
Wherein, the tin plating soft copper conductor of employing is the 5th tin plating soft copper conductor of class meeting GB/T3956 standard.Crosslinked polyetylene insulated layer employing cross-linking radiation mode makes and obtains.Water blocking layer is the water blocking layer of the overlapping wrapped composition of multilamellar waterstop spiral.The material composition proportioning of waterstop is polyethylene 30 parts, nitrile rubber 40 parts, water-proofing powder polyacrylic acid salt form resin 60 parts, maleic anhydride 7 parts, and waterstop wrapping angle is 35 °.Oxygen barrier layer is the oxygen barrier layer that Ceramic silicon rubber adopts overlapping wrapped composition, wrapping angle 55 °.Restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
When track traffic DC soft cable mounting and installation of the present utility model, the 5th tin plating soft copper conductor structure of class is soft, it is simple to mounting and installation, bending radius is little, it is simple at narrow local mounting and installation, tinned conductor Corrosion Protection is good, and the life-span is long.Crosslinked polyetylene insulated performance is good, becomes thermosets, high temperature resistant, good mechanical property after crosslinking.The water blocking layer of the overlapping wrapped composition of multilamellar waterstop spiral can longitudinal waterproof, the flame-proof polyethylene waterproof layer extruded can radially waterproof, the waterproof and dampproof function admirable of cable, be particularly suited for the wet environment of underground.Oxygen barrier layer adopts and extrudes or wrapped Ceramic silicon rubber oxygen barrier layer, fire resistance is good, one layer of insulation duricrust sealed is become when 300 DEG C of high temperature above, stop high temperature and the flame injury to built-in electrical insulation and conductor, make cable when the fire resistance meeting GB/T19666 requires, also there is at a relatively high fire resistance.Halogen-free and low-smoke flame-retardant polyolefin sheathed bend down cigarette, Halogen, environmental protection, safety at high temperature, flame condition.When running into fire, the outermost halogen-free and low-smoke flame-retardant polyolefin sheathed good fire retardation that can play, the effective ground resistance of meeting is stopped the intensity of a fire and is prolonged burning along cable itself, and halogen-free and low-smoke flame-retardant polyolefin sheathed is form ashes, and melted drippage will not occur.After halogen-free and low-smoke flame-retardant polyolefin sheathed layer is destroyed, the Ceramic silicon rubber oxygen barrier layer exposed will not be burnt, meet fire or the high temperature resistant duricrust of sealing can be formed when 300 DEG C of high temperature above, stop high temperature and the flame injury to built-in electrical insulation and conductor, cable is made to stop propagation of flame in case of fire, play good fire retardation, oxygen barrier layer duricrust does not melt under the flame more than 900 DEG C, do not drip, there is at a relatively high fire resistance, it is guaranteed in fire condition line and is still powered on a period of time, win the quality time for evacuating personnel escape and emergency management and rescue.The direct current design of cable makes cable can not be subject to impedance influences, is substantially reduced line loss and voltage drop.Above-mentioned measures makes track traffic DC soft cable mounting and installation of the present utility model convenient, electric conductivity, insulating properties, waterproof and dampproof function admirable, also has at a relatively high fire resistance when the fire resistance meeting GB/T19666 requires.This cable is all made up of Halogen, non-toxic material simultaneously, safe and environment-friendly, is particularly suitable for orbit traffic direct current driving cable.
This utility model is made up of Halogen, non-toxic material, fire-retardant, moistureproof, safe and environment-friendly, also has at a relatively high fire resistance；Adopting flexible conductor structure, mounting and installation is convenient, it is simple in the local laying installation that vehicle, subway tunnel etc. are narrow.This cable conduction performance meets GB/T3956 " conductor of cable " standard-required, proof voltage performance is consistent with the power cable of a high electric pressure, and (750V DC soft cable is consistent with 0.6/1kV power cable, 1500V DC soft cable is consistent with 1.8/3kV power cable), fire-retardant and low cigarette, Halogen performance meet the requirement and low cigarette, Halogen performance requirement that in GB/T19666 " fire-retardant and fire-resistant wire and cable general rule ", A class bunchy is fire-retardant.Waterproof and dampproof function admirable, cable is soft, and bending radius is little, lays conveniently, is particularly well-suited in track traffic DC power cable.
Claims (6)
1. a track traffic DC soft cable, it is characterised in that this cable is the structure nested successively being coaxially disposed, including:
The conductor being made up of tin plating soft copper conductor, it is extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene waterproof layer extruded outside water blocking layer, extrude outside waterproof layer or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer.
2. a kind of track traffic DC soft cable according to claim 1, it is characterised in that described tin plating soft copper conductor is the 5th tin plating soft copper conductor of class meeting GB/T3956 standard.
3. a kind of track traffic DC soft cable according to claim 1, it is characterised in that described water blocking layer is the water blocking layer of the overlapping wrapped composition of multilamellar waterstop spiral.
4. a kind of track traffic DC soft cable according to claim 1, it is characterised in that described oxygen barrier layer is that Ceramic silicon rubber extrudes or the oxygen barrier layer of wrapped composition.
5. a kind of track traffic DC soft cable according to claim 4, it is characterised in that described Ceramic silicon rubber oxygen barrier layer adopts when packet mode, adopts overlapping wrapped, between wrapping angle 25 °～35 °.
6. a kind of track traffic DC soft cable according to claim 1, it is characterised in that described restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620005640.6U CN205354743U (en) | 2016-01-04 | 2016-01-04 | Direct current flexible cable for track traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620005640.6U CN205354743U (en) | 2016-01-04 | 2016-01-04 | Direct current flexible cable for track traffic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205354743U true CN205354743U (en) | 2016-06-29 |
Family
ID=56173926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620005640.6U Expired - Fee Related CN205354743U (en) | 2016-01-04 | 2016-01-04 | Direct current flexible cable for track traffic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205354743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489305A (en) * | 2016-01-04 | 2016-04-13 | 上海新益电力线路器材有限公司 | DC flexible cable for rail transit |
-
2016
- 2016-01-04 CN CN201620005640.6U patent/CN205354743U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489305A (en) * | 2016-01-04 | 2016-04-13 | 上海新益电力线路器材有限公司 | DC flexible cable for rail transit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202258471U (en) | Environment-friendly fire-proof medium-voltage cable | |
| CN103137264A (en) | Environment-friendly medium voltage power supply cable for rail transit | |
| CN204143920U (en) | A kind of aluminium sheath fireproof cable | |
| CN204440974U (en) | Power cable for rail transit | |
| CN104464911A (en) | Low smoke halogen-free flame-retardant fireproof medium-voltage flexible cable | |
| CN205354743U (en) | Direct current flexible cable for track traffic | |
| CN106158084B (en) | Track traffic DC dynamo and control composite cable | |
| CN102306517A (en) | Environmental friendly flame retardant soft cable for equipment | |
| CN210110415U (en) | Crosslinked polyethylene insulation sheath rare earth aluminum alloy power cable | |
| CN210295995U (en) | High-flame-retardant green environment-friendly cable for B1-grade electrified railway | |
| CN205177474U (en) | Fire -resistant power cable of cross -linked insulation | |
| CN205487526U (en) | Fire -resistant railway tunnel of environment -friendly power cable that throws light on | |
| CN204991258U (en) | Environment -friendly high life crosslinked cable | |
| CN103106966A (en) | Soft high-fire-resistance cable | |
| CN204102616U (en) | A kind of novel flame-retardant fireproof cable | |
| CN105976913A (en) | Improved-type medium-voltage fireproof power cable | |
| CN102394126A (en) | Low-smoke halogen-free high-flame-retardant fire-resistant environmentally-friendly cable | |
| CN204651023U (en) | The halogen-free flameproof fireproof cable of modified node method | |
| CN105489305A (en) | DC flexible cable for rail transit | |
| CN203552775U (en) | A flame retardation soft type rail-traffic-used direct current power cable | |
| CN201629181U (en) | Direct current cable with flame resistance, fire resistance, low smoke, no halogen, water prevention, mouse prevention, weather resistance and energy saving | |
| CN208985737U (en) | A kind of low pressure inorganic mineral insulation flexible fireproof cable | |
| CN205751665U (en) | A kind of low-smoke non-halogen flame-retardant fire proof power cable | |
| CN210606686U (en) | Novel flame-retardant cable | |
| CN205984331U (en) | Nuclear power medium voltage power cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190104 |