CN102800406B - Plastic insulation plastic sheath power cable - Google Patents
Plastic insulation plastic sheath power cable Download PDFInfo
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- CN102800406B CN102800406B CN201210293052.3A CN201210293052A CN102800406B CN 102800406 B CN102800406 B CN 102800406B CN 201210293052 A CN201210293052 A CN 201210293052A CN 102800406 B CN102800406 B CN 102800406B
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Abstract
The invention relates to a plastic insulation plastic sheath power cable, which comprises dynamic wire cores and earth wire cores. Each dynamic wire cores comprise a dynamic wire core conductor, an inner shielding layer, an insulating layer and an outer shielding layer, wherein the inner shielding layer is extruded outside a power wire core conductor and then the insulating layer is extruded, and the outer shielding layer is extruded outside the insulating layer. Each earth wire cores comprise an earth wire core conductor and an earth wire core semiconductive layer coating the earth wire core conductor. The three dynamic wire cores, the three earth wire cores and saddle-shaped infill in the center are stranded together; an inner sheath is extruded outside the earth wire cores; steel wires are lapped outside the inner sheath and then a galvanized wire braid layer is braided; and an outer shield is extruded outside the galvanized wire braid layer. According to the plastic insulation plastic sheath power cable, the steel wires are lapped outside the inner sheath and then the galvanized wire braid layer is braided, so that the lapped steel wires are fastened, and the cable structure is guaranteed to be stable; in addition, the stability of electrical performance and mechanical performance of the cable is ensured.
Description
Technical field
The invention belongs to cables manufacturing field, relate to a kind of plastic insulation plastic sheath power cable, being particularly useful for rated voltage is the production that 0.6/1kV～26/35kV moulds cable insulation, moulds cable sheath power cable.
Background technology
In extrusion insulating power cable GB/T 12706-2008 standard, rated voltage is 0.6/1kV～26/35kV, moulds cable insulation, moulds cable sheath power cable.Its cable is all transmission high-voltage power cables, and general is fixedly to lay not mobile use.It is that cable is vertically gone into the well that but this cable uses in colliery.Long-time vertical placement of cable, in the external force situation that there is no other, with regard to the deadweight of cable itself, just makes cable be destroyed.In order to improve the useful life of cable, standard regulation is thicker wire, LWA light wire armoured cable for the construction of cable, its objective is the overall pulling force of strengthening cable.But still occur at present quality problems, after cable use a period of time, the steel wire of armouring arches upward, by broken the oversheath arch of cable, this is a difficult problem that perplexs for a long time cable manufacturing enterprise.
Summary of the invention
Problem to be solved by this invention is, overcome the deficiencies in the prior art, a kind of plastic insulation plastic sheath power cable is provided, adopt and outside inner sheath, after wrapped steel wire, weave again zinc-coated wire braid, wrapped steel wire is played to the effect of tightening, ensure that the construction of cable is stable, also ensured cable electrical property, stable mechanical performance simultaneously.
The present invention solves its technical problem and takes following technical scheme to realize:
According to a kind of plastic insulation plastic sheath power cable provided by the invention, comprise power core and ground core, power core is made up of power line core conductor, internal shield, insulating barrier and outer shielding layer, power line core conductor extrudes extruded insulation layer after internal shield outward, and insulating barrier extrudes outer shielding layer outward again; Ground core is made up of the semi-conductive layer of ground wire core conductor and its outer cladding; The shape of a saddle filler of being placed by three power cores, three ground core and centers is stranded, its outer inner sheath that extrudes, and inner sheath weaves zinc-coated wire braid after wrapped steel wire outward again, and zinc-coated wire braid extrudes oversheath outward again.
The present invention compared with prior art has significant advantage and beneficial effect:
Because the present invention after wrapped steel wire, adopts braiding machine braiding zinc-coated wire outside inner sheath, wrapped steel wire is played to the effect of tightening, in the time that extruding oversheath, production also ensures the rounding property of cable, and this construction of cable is stable, and electrical property, mechanical performance are also very stable.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
[00039brief description of the drawings
Fig. 1 is structural representation of the present invention.
Wherein: 1, power line core conductor, 2, internal shield, 3, insulating barrier, 4, outer shielding layer, 5, ground wire core conductor, 6, core semi-conductive layer, 7, shape of a saddle filler, 8, inner sheath, 9, steel wire, 10, zinc-coated wire braid, 11, oversheath.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to embodiment provided by the invention, structure, feature and effect thereof, be described in detail as follows.
A kind of plastic insulation plastic sheath power cable as shown in Figure 1, comprise power core and ground core, power core is made up of power line core conductor, internal shield, insulating barrier and outer shielding layer, power line core conductor 1 is outer extrudes the rear extruded insulation layer 3 of internal shield 2, and insulating barrier extrudes outer shielding layer 4 outward again; Ground core is made up of the ground core semi-conductive layer 6 of ground wire core conductor 5 and its outer cladding; The shape of a saddle filler 7 of being placed by three power cores, three ground core and centers is stranded, its outer inner sheath 8 that extrudes, and inner sheath weaves zinc-coated wire braid 10 after wrapped steel wire 9 outward again, and zinc-coated wire braid extrudes oversheath 11 outward again.
This construction of cable is stable, and electrical property, mechanical performance are also very stable, through long-time vertical use the in colliery, steel wire does not occur and arch upward and destroy the phenomenon of sheath, has ensured the normal use of cable.
Claims (1)
1. a plastic insulation plastic sheath power cable, comprise power core and ground core, it is characterized in that: described power core is made up of power line core conductor, internal shield, insulating barrier and outer shielding layer, power line core conductor extrudes extruded insulation layer after internal shield outward, and insulating barrier extrudes outer shielding layer outward again; Ground core is made up of the semi-conductive layer of ground wire core conductor and its outer cladding; The shape of a saddle filler of being placed by three power cores, three ground core and centers is stranded, its outer inner sheath that extrudes, and inner sheath weaves zinc-coated wire braid after wrapped steel wire outward again, and zinc-coated wire braid extrudes oversheath outward again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210293052.3A CN102800406B (en) | 2012-08-17 | 2012-08-17 | Plastic insulation plastic sheath power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210293052.3A CN102800406B (en) | 2012-08-17 | 2012-08-17 | Plastic insulation plastic sheath power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102800406A CN102800406A (en) | 2012-11-28 |
| CN102800406B true CN102800406B (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210293052.3A Active CN102800406B (en) | 2012-08-17 | 2012-08-17 | Plastic insulation plastic sheath power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102800406B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117127A (en) * | 2013-03-18 | 2013-05-22 | 天津天缆小猫线缆科技集团有限公司 | High-voltage ethylene-propylene insulation plastic sheath power cable |
| CN104200878B (en) * | 2014-09-11 | 2016-09-14 | 安徽恒晶电缆集团有限公司 | A kind of Aero-Space multi-core controlled cable |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201229796Y (en) * | 2008-07-18 | 2009-04-29 | 河北华通线缆制造有限公司 | High pressure shielding heavy wire winding reinforced type rubber sleeve flexible electric cable for mining |
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2012
- 2012-08-17 CN CN201210293052.3A patent/CN102800406B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201229796Y (en) * | 2008-07-18 | 2009-04-29 | 河北华通线缆制造有限公司 | High pressure shielding heavy wire winding reinforced type rubber sleeve flexible electric cable for mining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102800406A (en) | 2012-11-28 |
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Effective date of registration: 20230519 Address after: 300400 20 km west of Jinwei Road, DAZHANGZHUANG Town, Beichen District, Tianjin Patentee after: Tianjin Xiaomao Tianlan Group Co.,Ltd. Address before: No. 88 Fujin Road, Zhongbei Industrial Park, Xiqing District, Tianjin, 300380 Patentee before: TIANJIN TIANLAN GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |