CN202887863U - Multi-core middle and low voltage power cable - Google Patents
Multi-core middle and low voltage power cable Download PDFInfo
- Publication number
- CN202887863U CN202887863U CN 201220509786 CN201220509786U CN202887863U CN 202887863 U CN202887863 U CN 202887863U CN 201220509786 CN201220509786 CN 201220509786 CN 201220509786 U CN201220509786 U CN 201220509786U CN 202887863 U CN202887863 U CN 202887863U
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- cable
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- low voltage
- voltage power
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Abstract
The utility model discloses a multi-core middle and low voltage power cable and belongs to the technical field of cables. The multi-core middle and low voltage power cable comprises a cable core and an outer sheath layer. Fillers are arranged between the cable core and the outer sheath layer. A non-woven fabric layer is arranged outside the fillers. The cable core is formed by intertwisting a plurality of single-core insulating cables. Each of the single-core insulating cables comprises a conductor; a conductor shielding layer is arranged outside the conductor; an insulating layer is arranged outside the conductor shielding layer; a copper strip shielding layer is arranged outside the insulating layer; an electrical insulating varnish layer is arranged outside the copper strip shielding layer; and an insulating shielding layer is arranged outside the electrical insulating varnish layer. The multi-core middle and low voltage power cable has a reasonable structure and employs the multi-layer shielding so that the utilization effect of the cable cannot be affected as the conductors cannot have interactions, and the shielding effect is increased; the strength of the cable is increased by the fillers; and the hear-resistant property and the mechanical performance of the cable are improved through the insulating layers which are made by crosslinking polyethylene, so that the cable can bear a relatively large mechanical external force and the electric power transportation of the cable is guaranteed.
Description
Technical field
The utility model belongs to the cable technology field, is specifically related to a kind of multicore medium-low voltage power cable.
Background technology
Power cable refers to each or a plurality of conductor outer wrap one deck annular insulating barrier, and conductor and insulating barrier share the electric wire in same axle center, and then whole cable is encased by the sheath of polyvinyl chloride or other materials, carries out the conduction instrument of electric energy transmitting.Power cable be usually used in Urban Underground electrical network, power station lead line, industrial and mining enterprises in-line power and cross river, the submarine transmission line in sea excessively.The single-core power cables structure of existing market is more single, and function is also fewer; And unreasonable owing to arranging between the conductor in the multi-core power cable, can exert an influence each other, the shielding texts is bad; And the packed layer materials in the multicore cable are general, and intensity is not high, cause power cable can not satisfy instructions for use at some special occasions.
The utility model content
The purpose of this utility model is in order to overcome deficiency of the prior art, to provide a kind of intensity high, the multicore medium-low voltage power cable that shielding insulation is effective.
The technical solution of the utility model comprises:
A kind of multicore medium-low voltage power cable, comprise cable core and external sheath layer, between cable core and external sheath layer, be provided with obturator, described obturator peripheral hardware has nonwoven layer, described cable core is formed by many single core insulation cable twistings, described single core insulation cable comprises conductor, outside described conductor, be provided with conductor shield, outside described conductor shield, be provided with insulating barrier, outside described insulating barrier, be provided with the copper strip shielding layer, outside described copper strip shielding layer, be provided with the electrical engineering insulation paint layer, at described electric insulation enamelled coating peripheral hardware insulation screen arranged.
The material of described conductor is copper or aluminium.
The material of described insulating barrier is a kind of in crosslinked polyethylene, polyvinyl chloride or the polyethylene.
Described electric insulation enamelled coating material is epoxy-ester insulating varnish or the compound lacquer of polyester-imide/polyamide.
The material of described external sheath layer is crosslinked polyethylene, polyvinyl chloride or poly a kind of.
The material of described obturator is composite material of silicon carbide.
Described single core insulation number of cables is at least two, preferred three.
The beneficial effects of the utility model: the utility model is rational in infrastructure, adopt multilayer screen, can not interact between the conductor and affect the cable result of use, improved shield effectiveness, obturator has strengthened the intensity of product, crosslinked polyetylene insulated layer has improved thermal endurance and the mechanical performance of cable, can bear larger mechanical external force, guarantees that cable can satisfy the electric power transportation of 3.6/6kv-26/35kv in places such as indoor, tunnel and cable troughs.
Description of drawings
Fig. 1 is cross section structure schematic diagram of the present utility model.
Among Fig. 1,1-conductor, 2-conductor shield, 3-insulating barrier, 4-copper strip shielding layer, 5-electric insulation enamelled coating, 6-insulation screen, 7-obturator, 8-nonwoven layer, 9-external sheath layer.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, a kind of multicore medium-low voltage power cable, comprise cable core and external sheath layer 9, between cable core and external sheath layer 9, be provided with obturator 7, described obturator 7 peripheral hardwares have nonwoven layer 8, described cable core is formed by 3 single core insulation cable twistings, described single core insulation cable comprises conductor 1, outside described conductor 1, be provided with conductor shield 2, outside described conductor shield 2, be provided with insulating barrier 3, outside described insulating barrier 3, be provided with copper strip shielding layer 4, outside described copper strip shielding layer 4, be provided with electrical engineering insulation paint layer 5, outside described electric insulation enamelled coating 5, be provided with insulation screen 6.
The material of described conductor 1 is copper or aluminium.
The material of described insulating barrier 3 is a kind of in crosslinked polyethylene, polyvinyl chloride or the polyethylene.
Described electric insulation enamelled coating 5 materials are epoxy-ester insulating varnish or the compound lacquer of polyester-imide/polyamide.
The material of described external sheath layer 9 is crosslinked polyethylene, polyvinyl chloride or poly a kind of.
The material of described obturator 7 is composite material of silicon carbide.
The utility model is rational in infrastructure, adopt multilayer screen, can not interact between the conductor and affect the cable result of use, improved shield effectiveness, obturator has strengthened the intensity of product, crosslinked polyetylene insulated layer has improved thermal endurance and the mechanical performance of cable, can bear larger mechanical external force, guarantees that cable can satisfy the electric power transportation of 3.6/6kv-26/35kv in places such as indoor, tunnel and cable troughs.
Claims (8)
1. multicore medium-low voltage power cable, comprise cable core and external sheath layer (9), between cable core and external sheath layer (9), be provided with obturator (7), described obturator (7) peripheral hardware has nonwoven layer (8), described cable core is formed by (3) root list core insulation cable twisting, described single core insulation cable comprises conductor (1), outside described conductor (1), be provided with conductor shield (2), outside described conductor shield (2), be provided with insulating barrier (3), outside described insulating barrier (3), be provided with copper strip shielding layer (4), outside described copper strip shielding layer (4), be provided with electrical engineering insulation paint layer (5), outside described electric insulation enamelled coating (5), be provided with insulation screen (6).
2. multicore medium-low voltage power cable according to claim 1, the material that it is characterized in that described conductor (1) is copper or aluminium.
3. multicore medium-low voltage power cable according to claim 1, the material that it is characterized in that described insulating barrier (3) are a kind of in crosslinked polyethylene, polyvinyl chloride or the polyethylene.
4. multicore medium-low voltage power cable according to claim 1 is characterized in that described electric insulation enamelled coating (5) material is epoxy-ester insulating varnish or the compound lacquer of polyester-imide/polyamide.
5. multicore medium-low voltage power cable according to claim 1, the material that it is characterized in that described external sheath layer (9) is crosslinked polyethylene, polyvinyl chloride or poly a kind of.
6. multicore medium-low voltage power cable according to claim 1, the material that it is characterized in that described obturator (7) is composite material of silicon carbide.
7. multicore medium-low voltage power cable according to claim 1 is characterized in that described single-core cable quantity is at least two.
8. multicore medium-low voltage power cable according to claim 7 is characterized in that described single-core cable quantity is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509786 CN202887863U (en) | 2012-09-29 | 2012-09-29 | Multi-core middle and low voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509786 CN202887863U (en) | 2012-09-29 | 2012-09-29 | Multi-core middle and low voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887863U true CN202887863U (en) | 2013-04-17 |
Family
ID=48079262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220509786 Expired - Fee Related CN202887863U (en) | 2012-09-29 | 2012-09-29 | Multi-core middle and low voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202887863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540132A (en) * | 2013-10-29 | 2014-01-29 | 绿宝电缆（集团）有限公司 | Modified weather-proof light-weight low-density polyethylene cable sheath material |
| CN103714905A (en) * | 2012-09-29 | 2014-04-09 | 无锡荣诚电工材料有限公司 | Multi-core medium-low voltage power cable |
-
2012
- 2012-09-29 CN CN 201220509786 patent/CN202887863U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714905A (en) * | 2012-09-29 | 2014-04-09 | 无锡荣诚电工材料有限公司 | Multi-core medium-low voltage power cable |
| CN103540132A (en) * | 2013-10-29 | 2014-01-29 | 绿宝电缆（集团）有限公司 | Modified weather-proof light-weight low-density polyethylene cable sheath material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20130929 |