CN202996407U - Power cable used in subway light rail - Google Patents
Power cable used in subway light rail Download PDFInfo
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- CN202996407U CN202996407U CN 201220684454 CN201220684454U CN202996407U CN 202996407 U CN202996407 U CN 202996407U CN 201220684454 CN201220684454 CN 201220684454 CN 201220684454 U CN201220684454 U CN 201220684454U CN 202996407 U CN202996407 U CN 202996407U
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- cable
- power cable
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- core
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Abstract
The utility model discloses a power cable used in a subway light rail. The power cable used in the subway light rail comprises a cable core, and an outer sheath wraps on the outside of the cable core and is a low smoke halogen free flame retardant sheath material which is waterproof, rat-proof, ant-proof and ultraviolet-proof. Because the outer sheath is the low smoke halogen free flame retardant sheath material which is waterproof, rat-proof, ant-proof and ultraviolet-proof, so that the power cable used in the subway light rail of the utility model satisfies the special high-performance requirements of being low smoke halogen free flame retardant, waterproof, rat-proof, ant-proof, ultraviolet-proof, etc. The conventionally used a water-blocking tape waterproof structure and a metal tape (for example, a copper tape, a stainless steel tape, etc.) ant-proof structure are canceled, so that the structure of the cable is simplified, the product design cost and the external diameter of the cable are reduced, and a cable laying space is saved.
Description
Technical field
The utility model relates to the cable technology field, is specially a kind of subway light rail power cable.
Background technology
China is in the prosperity period of urban rail transit construction at present, and China has become maximum in the world urban track traffic market.Subway sectional tunnel, subway station, equipment installation, fire-fighting etc. construction need a large amount of special wire cables.Because it is underground that urban track traffic mostly is, densely populated, in case breaking out of fire, the environment of underground sealed brings very large difficulty to personnel escape and fire-fighting work, needs product used all to have good low-smoke non-halogen flame-retardant and fire-resistant performance when these have determined Construction of Urban Rail Traffic.
In addition, due to the impact of underground environment and atmosphere, cable is laid under moist environment for a long time, hydrone can be penetrated into by rubber or plastic layer the inside of cable, cable causes the insulation electrical hydraulic performance decline, even causes security incident, so should have waterproof, humidity resistance.Because there is the harm of mouse ant in underground environment, so cable should have the rat-and-ant proof performance.Cable simultaneously, due to track traffic above ground portion cable, is subject to for a long time ultraviolet aging action, so should have the performance of antiultraviolet.
Tradition subway light rail cable is sandwich construction in order to satisfy above-mentioned requirements, and every one deck possesses a safeguard function, obtains the cable of function stack with this.Wherein, adopt low-smoke halogen-free flame-retardant sheath and oxygen barrier layer structural design to satisfy the low-smoke non-halogen flame-retardant requirement; Adopt the mica tape structure to realize fire-resistant requirement; Adopt plastic-aluminum combined band structure or low density polyethylene layer or block water to bring and realize waterproof requirement; Adopt metal tape (copper strips or stainless steel band etc.) structure to realize the protection against rodents requirement; Adopt cable sheath material to satisfy anti-ant, antiultraviolet needs.
From the above, traditional subway light rail power cable is complex structure not only, and external diameter is larger, and design cost is higher.
The utility model content
In view of this, the utility model provides a kind of subway light rail power cable, makes it possess simple structure, and then obtains less external diameter, and lower design cost.
For solving above technical problem, the technical solution of the utility model is, a kind of subway light rail power cable comprises cable core, and the outer wrap of cable core has oversheath, and described oversheath is the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet.
Further, described cable also is provided with separation sleeve and armour between cable core and oversheath, and described separation sleeve is the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet.
Further, described cable core comprises insulated wire cores, insulated wire cores can be single core or multicore, and the stranded integral outer wrapping of single core outside or multicore has the low-smoke non-halogen flame-retardant twining package tape, and the gap between single core or multicore and low-smoke non-halogen flame-retardant twining package tape all is filled with the low smoke and zero halogen mineral wool rope.
Further, described insulated wire cores is the low-voltage insulation core, comprises conductor and insulating barrier, is provided with the Mica tape layer between conductor and insulating barrier.
Further, described insulated wire cores is middle pressure insulated wire cores, is comprised of the conductor, conductor shield, insulating barrier, insulation screen and the metal screen layer that from inside to outside arrange successively.
Further, described cable is single-core cable, and armour is nonmagnetic metal band or wire.
Further, described cable is multicore cable, and armour is galvanized steel strip or zinc-coated wire.
Further, described insulating barrier is cross-linking polyethylene materials or ethylene propylene diene rubber mixture material.
Further, described insulating barrier is cross-linking polyethylene materials, and conductor is that conductor is stranded forms in the GB/T3956 standard the 1st kind or the 2nd kind.
Further, described insulating barrier is the ethylene propylene diene rubber mixture material, and conductor is that conductor is stranded forms in the GB/T3956 standard the 5th kind or the 6th kind.
Compared with prior art, subway light rail power cable provided by the utility model comprises cable core, and the outer wrap of cable core has oversheath, and oversheath is the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet.Be the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet due to oversheath, so the utility model has satisfied the special high performance requirements such as low-smoke non-halogen flame-retardant, waterproof, protection against rodents, anti-ant, antiultraviolet.Cancel waterstop waterproof construction and metal tape (as copper strips or stainless steel band etc.) the protection against rodents structure of traditional employing, thereby simplified the structure of cable, reduced product design costs, reduced the outside diameter of cable, saved the cable laying space.
Description of drawings
Fig. 1 is embodiment one structural representation of the present utility model;
Fig. 2 is embodiment two structural representations of the present utility model;
Fig. 3 is embodiment three structural representations of the present utility model.
In figure: 1, cable core, 2, oversheath, 3, separation sleeve, 4, armour, 5, insulating barrier, 6, lapping layer, 7, conductor.
Embodiment
Core thinking of the present utility model is, the function of traditional cable sandwich construction is integrated, employing has the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet simultaneously, has cancelled waterstop waterproof construction and metal tape protection against rodents structure that traditional cable adopts.Reach the simplification construction of cable with this, reduce design cost, and the purpose that reduces outside diameter of cable size.
The utility model provides a kind of subway light rail power cable, comprises cable core, and the outer wrap of cable core has oversheath.Oversheath is the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Be applicable to the cable of the occasions such as electric power, control, monitoring loop, illuminator, DC traction power-supply system of city underground or light rail electricity consumption zone use due to the subway light rail cable.Can divide power cable class, control cables class, dc traction cable class, illuminator electric wire class, telecommunication cable.So the power cable that the utility model provides is on the basis with waterproof, protection against rodents, anti-ant, antiultraviolet, applicable to polytype cable.Specific as follows:
Embodiment one
Referring to Fig. 1, the present embodiment belongs to subway light rail with non-armored type cable in ac power cable, comprises cable core 1 and oversheath 2.Wherein, oversheath 2 is the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet.
Embodiment two
Referring to Fig. 2, the present embodiment belongs to subway light rail with armored type cable in ac power cable, comprises from the inside to the outside cable core 1, separation sleeve 3, armour 4 and oversheath 2.Wherein, separation sleeve 3 and oversheath 2 are the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet.
In above-mentioned two embodiment, cable core 1 comprises insulated wire cores, and insulated wire cores can be single core and also can be multicore, corresponds to single-core cable and multicore cable.The stranded integral outer wrapping of single core outside or multicore has the low-smoke non-halogen flame-retardant twining package tape, and the gap between single core or multicore and low-smoke non-halogen flame-retardant twining package tape all is filled with the low smoke and zero halogen mineral wool rope.Insulated wire cores also can be low-voltage insulation core or middle pressure insulated wire cores.Wherein, the low-voltage insulation core is comprised of conductor and insulating barrier.Possess fire-resistant function as the needs cable, namely become fire-resisting cable, the Mica tape layer can be set between conductor and insulating barrier.Middle pressure insulated wire cores is comprised of the conductor, conductor shield, insulating barrier, insulation screen and the metal screen layer that from inside to outside arrange successively.
For embodiment two, when insulated wire cores is single core, i.e. single-core cable, armour 4 is nonmagnetic metal band or wire; When insulated wire cores is multicore, i.e. multicore cable, armour 4 is galvanized steel strip or zinc-coated wire.
Embodiment three
Referring to Fig. 3, the present embodiment belongs to the subway light rail dc traction cable, comprises conductor 7, insulating barrier 5, lapping layer 6 and oversheath 2.Wherein, the same low-smoke halogen-free flame-retardant sheath material that adopts waterproof, protection against rodents, anti-ant, antiultraviolet of oversheath 2.6 of lapping layers adopt wrapped the forming of low-smoke non-halogen flame-retardant band.Insulating barrier 5 can adopt cross-linking polyethylene materials or ethylene propylene diene rubber mixture material.When insulating barrier 5 is cross-linking polyethylene materials, conductor is stranded forms for the 1st kind or the 2nd kind in the GB/T3956 standard for conductor 7.When insulating barrier 5 is the ethylene propylene diene rubber mixture material, conductor is stranded forms for the 5th kind or the 6th kind in the GB/T3956 standard for conductor 7.
Subway light rail power cable provided by the utility model is alternating voltage 26/35kV and following applicable to rated voltage, and direct voltage is the occasions such as 3000V and following electric equipment, lighting device, power circuit, is used as electric power transfer etc.
In sum, the power cable that provides due to the utility model has adopted waterproof, protection against rodents, has prevented the low-smoke halogen-free flame-retardant sheath material of ant, antiultraviolet, realized the construction of cable has been simplified in the integration of power cable various functions, dwindle the outside diameter of cable, reduced the design cost of cable.
Be below only preferred implementation of the present utility model, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection range of the present utility model should be as the criterion with the claim limited range.For those skilled in the art, within not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a subway light rail power cable, comprise cable core, it is characterized in that: the outer wrap of described cable core has oversheath, and described oversheath is the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet.
2. power cable as claimed in claim 1, it is characterized in that: described cable also is provided with separation sleeve and armour between cable core and oversheath, and described separation sleeve is the low-smoke halogen-free flame-retardant sheath material of waterproof, protection against rodents, anti-ant, antiultraviolet.
3. power cable as claimed in claim 2, it is characterized in that: described cable core comprises insulated wire cores, insulated wire cores can be single core or multicore, the stranded integral outer wrapping of single core outside or multicore has the low-smoke non-halogen flame-retardant twining package tape, and the gap between single core or multicore and low-smoke non-halogen flame-retardant twining package tape all is filled with the low smoke and zero halogen mineral wool rope.
4. power cable as claimed in claim 3, it is characterized in that: described insulated wire cores is the low-voltage insulation core, comprises conductor and insulating barrier, is provided with the Mica tape layer between conductor and insulating barrier.
5. power cable as claimed in claim 3, it is characterized in that: described insulated wire cores is middle pressure insulated wire cores, is comprised of the conductor, conductor shield, insulating barrier, insulation screen and the metal screen layer that from inside to outside arrange successively.
6. power cable as claimed in claim 3, it is characterized in that: described insulated wire cores is single core, armour is nonmagnetic metal band or wire.
7. power cable as claimed in claim 3, it is characterized in that: described insulated wire cores is multicore, armour is galvanized steel strip or zinc-coated wire.
8. power cable as described in any one in claim 3 to 7, it is characterized in that: described insulating barrier is cross-linking polyethylene materials or ethylene propylene diene rubber mixture material.
9. power cable as claimed in claim 8, it is characterized in that: described insulating barrier is cross-linking polyethylene materials, conductor is that conductor is stranded forms in the GB/T3956 standard the 1st kind or the 2nd kind.
10. power cable as claimed in claim 8, it is characterized in that: described insulating barrier is the ethylene propylene diene rubber mixture material, conductor is that conductor is stranded forms in the GB/T3956 standard the 5th kind or the 6th kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684454 CN202996407U (en) | 2012-12-12 | 2012-12-12 | Power cable used in subway light rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684454 CN202996407U (en) | 2012-12-12 | 2012-12-12 | Power cable used in subway light rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996407U true CN202996407U (en) | 2013-06-12 |
Family
ID=48567553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220684454 Expired - Lifetime CN202996407U (en) | 2012-12-12 | 2012-12-12 | Power cable used in subway light rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551631A (en) * | 2016-02-03 | 2016-05-04 | 安徽瑞昊缆业有限公司 | Multi-core industrial cable |
| CN105957612A (en) * | 2016-06-24 | 2016-09-21 | 安徽宜德电子有限公司 | Longitudinally-wrapped aluminum plastic composite band coaxial cable |
-
2012
- 2012-12-12 CN CN 201220684454 patent/CN202996407U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551631A (en) * | 2016-02-03 | 2016-05-04 | 安徽瑞昊缆业有限公司 | Multi-core industrial cable |
| CN105957612A (en) * | 2016-06-24 | 2016-09-21 | 安徽宜德电子有限公司 | Longitudinally-wrapped aluminum plastic composite band coaxial cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |