CN206432076U - A kind of power cable for rail transit - Google Patents
A kind of power cable for rail transit Download PDFInfo
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- CN206432076U CN206432076U CN201720022416.2U CN201720022416U CN206432076U CN 206432076 U CN206432076 U CN 206432076U CN 201720022416 U CN201720022416 U CN 201720022416U CN 206432076 U CN206432076 U CN 206432076U
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- Prior art keywords
- restrictive coating
- power cable
- sheath layer
- external sheath
- fire
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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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Abstract
The utility model is related to power cable technical field, more particularly to a kind of power cable for rail transit.The power cable includes cable core, and is coated on the restrictive coating of cable core periphery；The restrictive coating includes inner restrictive coating and external sheath layer successively from inside to outside；The inner restrictive coating be only have low cigarette, Halogen, the restrictive coating of fire resistance, the external sheath layer be with low cigarette, Halogen, fire-retardant, fire resisting, waterproof, protection against rodents, ant proof, ultraviolet resistance restrictive coating.The utility model power cable for rail transit not only possesses low cigarette, Halogen, fire-retardant, waterproof, protection against rodents, ant proof, ultraviolet resistance, while its technique is simple, cost is relatively low.
Description
Technical field
The utility model is related to power cable technical field, more particularly to a kind of power cable for rail transit.
Background technology
Power cable is the cable for transmitting and distributing electric energy, can be layed in ground or underground.Rail transit power
Cable is led for the electrical energy transportation of track traffic (such as subway or light rail), control, monitoring loop, illuminator, direct current
Draw the cable of the occasions such as electric power system.
By the environment that power cable for rail transit is laid is complex, for example in a humidity environment, hydrone
The inside of power cable would generally be penetrated into, causes insulation electrical performance to decline, therefore power cable should possess waterproof and dampproof property
Energy；Again there is the harm of mouse ant in such as underground environment, and power cable should have rat-and-ant proof performance；In another example when laying environment is located for a long time
In under ultraviolet irradiation or hot environment, power cable should have antiultraviolet, fire-retardant, fire resisting performance.
Existing power cable for rail transit is typically to use a variety of unlike materials (halogen-free flameproof sheath+mica tape+aluminium
Plastic composite strip+metal tape) layer structure the cable core of power cable is coated, or all using with a variety of functions
The Halogen sheath of (low cigarette, Halogen, fire-retardant, waterproof, protection against rodents, ant proof, antiultraviolet) is coated to cable core.Foregoing two ways
All realizing power cable has low cigarette, Halogen, fire-retardant, waterproof, protection against rodents, ant proof, ultraviolet resistance, but first way is
Realize that technique is complex, although the second way is only with a kind of material by using the layer structure of a variety of unlike materials
Layer structure, but its high expensive.
Utility model content
In view of this, the utility model provides a kind of power cable for rail transit, and it not only possesses low cigarette, Halogen, resistance
Combustion, waterproof, protection against rodents, ant proof, ultraviolet resistance, while its technique is simple, cost is relatively low.
To solve above technical problem, the technical scheme that the application is provided is to use a kind of power cable for rail transit,
The power cable includes cable core, and is coated on the restrictive coating of cable core periphery；The restrictive coating includes interior shield successively from inside to outside
Jacket layer and external sheath layer；
The inner restrictive coating is that only have low cigarette, Halogen, the restrictive coating of fire resistance, and the external sheath layer is with low
Cigarette, Halogen, fire-retardant, fire resisting, waterproof, protection against rodents, ant proof, the restrictive coating of ultraviolet resistance.
It is preferred that, the thickness of the inner restrictive coating is 1.5-2 times of external sheath layer thickness.
It is preferred that, the cladding face indention shape of the external sheath layer and inner restrictive coating.
It is preferred that, the zigzag fashion includes jut and depressed part, and jut is arranged on external sheath layer, and depressed part is set
Put on inner restrictive coating.
It is preferred that, there is certain sharp angle with cladding face after jut and the depressed part connection.
It is preferred that, the cable core is made up of some insulated electric conductor groups, and the insulated electric conductor group includes conductor and coating conductor
Insulating barrier.
It is preferred that, the insulating barrier is that only have low cigarette, Halogen, the clad of fire resistance.
The scheme that the application is provided is used is divided into two parts of inner restrictive coating and external sheath layer by the restrictive coating for coating cable core,
And external sheath layer coats inner restrictive coating, while inner restrictive coating is using only with low cigarette, Halogen, the restrictive coating of fire resistance, institute
Stating external sheath layer and using has low cigarette, Halogen, fire-retardant, fire resisting, waterproof, protection against rodents, ant proof, the restrictive coating of ultraviolet resistance.Adopt
After in fashion described above, there are different performance characteristics using inner restrictive coating and external sheath layer, so that before multiple performance is realized
Put, while existing of reduction has the cost of the power cable of the restrictive coating of multiple performance using individual layer, and reduce simultaneously
The processing technology difficulty of the power cable of the existing restrictive coating using a variety of unlike materials.The less interior shield of the application utility
Mode that the more comprehensive external sheath layer of jacket layer and performance is used in conjunction with each other reaches purpose described herein.
In addition, the application is preferred to use the cladding face indention shape of external sheath layer and inner restrictive coating, and it is further excellent
Choosing includes jut and depressed part using zigzag fashion, and jut is arranged on external sheath layer, and depressed part is arranged on inner restrictive coating
On；There is certain sharp angle with cladding face after more preferably being connected using the jut and depressed part.Obtained by aforesaid way
The inner restrictive coating and external sheath layer of power cable for rail transit combine it is more close, can avoid using other binding agents into
Point.
In addition, herein described cable core is according to use occasion and the difference of function, herein described rail transit power
Cable can be the type products such as power cable, control cable, DC traction cable, illuminator electric wire, it is preferred to use
Rated voltage is alternating voltage 26/35kV and following, and DC voltage is 3000V and following power cable.Different tracks is handed over
Cable core in universal electric power cable can include conductor, conductor shield, insulating barrier, insulation screen, packed layer, isolation jacket layer
Part or all of structure sheaf described in (inner liner), flame retardant coating, lapping layer, armor etc..
The application is preferred to use cable core and is made up of some insulated electric conductor groups, and the insulated electric conductor group includes conductor and cladding is led
The insulating barrier of body, and further preferably the insulating barrier is that only have low cigarette, Halogen, the clad of fire resistance.Above-mentioned side
Formula can further reduce the cost of electric cable for rail transit.
Brief description of the drawings
Fig. 1 is the sectional view of the power cable for rail transit of the utility model embodiment one；
Fig. 2 is the sectional view of the power cable for rail transit of the utility model embodiment two；
Fig. 3 is the enlarged drawing that Fig. 1 or Fig. 2 embodiments external sheath layer coats face A with inner restrictive coating.
Embodiment
In order to allow those skilled in the art to more fully understand the technical solution of the utility model, with reference to specific implementation
The utility model is described in further detail for mode.
Embodiment one：
Fig. 1 is the sectional view of the power cable for rail transit of the utility model embodiment one；Fig. 3 is Fig. 1 embodiments
External sheath layer coats face A enlarged drawing with inner restrictive coating.As shown in Figure 1, Figure 3, the utility model power cable for rail transit,
The power cable includes cable core 1-1, and is coated on the restrictive coating of cable core 1-1 peripheries；The restrictive coating is wrapped successively from inside to outside
Include inner restrictive coating 2-1 and external sheath layer 3-1；
The inner restrictive coating 2-1 is that only have low cigarette, Halogen, the restrictive coating of fire resistance, and the external sheath layer 3-1 is tool
There are low cigarette, Halogen, fire-retardant, fire resisting, waterproof, protection against rodents, ant proof, the restrictive coating of ultraviolet resistance；It is preferred to use the inner sheath
Layer 2-1 thickness is 1.5-2 times of external sheath layer 3-1 thickness；
External sheath layer 3-1 described in the application embodiment one and inner restrictive coating 2-1 indention shape of cladding face 7, it is described
Zigzag fashion includes jut 8 and depressed part 9, and jut 8 is arranged on external sheath layer 3-1, and depressed part 9 is arranged on inner restrictive coating
On 2-1；There is certain sharp angle with cladding face 7 after jut 8 and depressed part 9 connection.
Embodiment two：
Fig. 2 is the sectional view of the power cable for rail transit of the utility model embodiment two；Fig. 3 is Fig. 2 embodiments
External sheath layer coats face A enlarged drawing with inner restrictive coating.Power cable for rail transit, the power cable includes cable core 1-2,
And it is coated on the restrictive coating of cable core 1-2 peripheries；The restrictive coating includes inner restrictive coating 2-2 and external sheath layer 3- successively from inside to outside
2；
The inner restrictive coating 2-2 is that only have low cigarette, Halogen, the restrictive coating of fire resistance, and the external sheath layer 3-2 is tool
There are low cigarette, Halogen, fire-retardant, fire resisting, waterproof, protection against rodents, ant proof, the restrictive coating of ultraviolet resistance, it is preferred to use the inner sheath
Layer 2-2 thickness is 1.5-2 times of external sheath layer 3-2 thickness.
The cable core 1-2 is made up of some insulated electric conductor groups 4, and the insulated electric conductor group 4 includes conductor 6 and coating conductor 6
Insulating barrier 5, the insulating barrier 5 be only have low cigarette, Halogen, the clad of fire resistance；
External sheath layer 3-2 described in the application embodiment two and inner restrictive coating 2-2 indention shape of cladding face 7, it is described
Zigzag fashion includes jut 8 and depressed part 9, and jut 8 is arranged on external sheath layer 3-2, and depressed part 9 is arranged on inner restrictive coating
On 2-2；There is certain sharp angle with cladding face 7 after jut 8 and depressed part 9 connection.
The embodiment one or embodiment two that the application is provided are divided into inner restrictive coating using by the restrictive coating for coating cable core
With two parts of external sheath layer, and external sheath layer cladding inner restrictive coating, while inner restrictive coating using only have low cigarette, Halogen,
The restrictive coating of fire resistance, the external sheath layer, which is used, has low cigarette, Halogen, fire-retardant, fire resisting, waterproof, protection against rodents, ant proof, anti-purple
The restrictive coating of outside line performance.After aforesaid way, there are different performance characteristics using inner restrictive coating and external sheath layer, so that
On the premise of multiple performance is realized, while existing of reduction has the power cable of the restrictive coating of multiple performance using individual layer
Cost, and reduce the processing technology difficulty of the power cable of the existing restrictive coating using a variety of unlike materials simultaneously.The application
Mode that the less inner restrictive coating of utility and the more comprehensive external sheath layer of performance are used in conjunction with each other reaches the application
Described purpose.
In addition, the application is preferred to use the cladding face indention shape of external sheath layer and inner restrictive coating, and it is further excellent
Choosing includes jut and depressed part using zigzag fashion, and jut is arranged on external sheath layer, and depressed part is arranged on inner restrictive coating
On；There is certain sharp angle with cladding face after more preferably being connected using the jut and depressed part.Obtained by aforesaid way
The inner restrictive coating and external sheath layer of power cable for rail transit combine it is more close, can avoid using other binding agents into
Point.
In addition, herein described cable core is according to use occasion and the difference of function, herein described rail transit power
Cable can be the type products such as power cable, control cable, DC traction cable, illuminator electric wire, it is preferred to use
Rated voltage is alternating voltage 26/35kV and following, and DC voltage is 3000V and following power cable.Different tracks is handed over
Cable core in universal electric power cable can include conductor, conductor shield, insulating barrier, insulation screen, packed layer, isolation jacket layer
Part or all of structure sheaf described in (inner liner), flame retardant coating, lapping layer, armor etc..
Be made up of in addition, the application is preferred to use cable core some insulated electric conductor groups, the insulated electric conductor group include conductor and
The insulating barrier of coating conductor, and further preferably the insulating barrier is that only have low cigarette, Halogen, the clad of fire resistance.
Aforesaid way can further reduce the cost of electric cable for rail transit.
It the above is only preferred embodiment of the present utility model, it is noted that above-mentioned preferred embodiment should not be regarded
For to limitation of the present utility model, protection domain of the present utility model should be defined by claim limited range.For
For those skilled in the art, do not departing from spirit and scope of the present utility model, can also make some
Improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of power cable for rail transit, it is characterised in that：The power cable includes cable core, and is coated on cable core periphery
Restrictive coating；The restrictive coating includes inner restrictive coating and external sheath layer successively from inside to outside；
The inner restrictive coating is that only have low cigarette, Halogen, the restrictive coating of fire resistance, and the external sheath layer is with low cigarette, nothing
Halogen, fire-retardant, fire resisting, waterproof, protection against rodents, ant proof, the restrictive coating of ultraviolet resistance.
2. power cable according to claim 1, it is characterised in that：The thickness of the inner restrictive coating is external sheath layer thickness
1.5-2 times.
3. power cable according to claim 1, it is characterised in that：The cladding face of the external sheath layer and inner restrictive coating is in
Zigzag fashion.
4. power cable according to claim 3, it is characterised in that：The zigzag fashion includes jut and depressed part,
Jut is arranged on external sheath layer, and depressed part is arranged on inner restrictive coating.
5. power cable according to claim 4, it is characterised in that：With cladding face after jut and the depressed part connection
With certain sharp angle.
6. power cable according to claim 1, it is characterised in that：The cable core is made up of some insulated electric conductor groups, institute
State insulating barrier of the insulated electric conductor group including conductor and coating conductor.
7. power cable according to claim 6, it is characterised in that：The insulating barrier be only there is low cigarette, it is Halogen, fire-retardant
The clad of performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720022416.2U CN206432076U (en) | 2017-01-10 | 2017-01-10 | A kind of power cable for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720022416.2U CN206432076U (en) | 2017-01-10 | 2017-01-10 | A kind of power cable for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206432076U true CN206432076U (en) | 2017-08-22 |
Family
ID=59585401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720022416.2U Active CN206432076U (en) | 2017-01-10 | 2017-01-10 | A kind of power cable for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206432076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166654A (en) * | 2018-08-09 | 2019-01-08 | 远东电缆有限公司 | A kind of dedicated drag cable of wisdom energy type metallic ore scraper |
-
2017
- 2017-01-10 CN CN201720022416.2U patent/CN206432076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166654A (en) * | 2018-08-09 | 2019-01-08 | 远东电缆有限公司 | A kind of dedicated drag cable of wisdom energy type metallic ore scraper |
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