CN103871634A - Insulated cable - Google Patents
Insulated cable Download PDFInfo
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- CN103871634A CN103871634A CN201410071196.3A CN201410071196A CN103871634A CN 103871634 A CN103871634 A CN 103871634A CN 201410071196 A CN201410071196 A CN 201410071196A CN 103871634 A CN103871634 A CN 103871634A
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- cable
- wire cores
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- core
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Abstract
The invention discloses an insulated cable, wherein conductors adopt tinned copper soft copper conductors; a polyethylene insulating layer is wrapped on each conductor; water-blocking gauze is lapped on each insulating layer to form an insulated wire core; three insulated wire cores are twisted together and wrapped by a water-blocking wrapping belt to form a cable core; the water-blocking wrapping belt fills the cable core; a metal shielding layer, an inner sheath layer and an outer sheath layer are arranged outside the water-blocking wrapping belt; the inner sheath layer and the outer sheath layer are both formed through high-density polyethylene polythene extrusion; three wire cores II are also arranged among the three insulated wire cores; the wire cores II are formed in a manner of wrapping the polyethylene insulating layer on the conductors; control wire cores are also arranged between the metal shielding layer and the water-blocking wrapping belt. The insulated cable has good low temperature resistance, good chemical stability, small water imbibition, good waterproof performance, is resistant to erosion of most acid and alkali, does not dissolve in ordinary solvents at the room temperature and greatly increases the cable waterproof performance, and can effectively prevent moisture entering into the cable.
Description
technical field
The present invention relates to a kind of insulated cable, belong to technical field of electric wires and cables.
background technology
Crosslinked polyethylene (XLPE) insulated power cable, because of its good electric, mechanical and physical performance, and production technology is simple, structure is light, transmission capacity is large, mounting and installation and maintaining convenient, be not subject to the advantages such as drop restriction, in electric power system, is widely used.But XLPE cable is being laid and run duration, in the time that mechanical stress or external force cause cable cover(ing) and insulation harm or joint to damage, moisture or moisture can be along cable longitudinally and radial clearance immersion, and the probability that causes XLPE power cable insulation to generate water tree under working voltage rises rapidly.Water tree grows into certain length can cause at water tree tip permanent electric branch defect, and causes cable insulation to puncture in the short period, causes power outage.Preventing from early days producing water tree in cable insulation, is mainly to consider XLPE to carry out modification, adopts interpolation voltage stabilizer and other additive to suppress the generation of water tree, and this measure has certain effect but do not tackle the problem at its root.
summary of the invention
The object of the invention is to provide a kind of insulated cable of simple in structure, good waterproof performance.
The solution of the present invention is as follows: a kind of insulated cable, conductor adopts the zinc-plated soft copper conductor of copper, on described conductor, extrude polyethylene layer, on described insulating barrier, the wrapped gauze that blocks water forms insulated wire cores, three insulated wire cores twist together and the wrapped band formation cable core that blocks water, and the band that blocks water is filled at described cable core place; The described band that blocks water arranges respectively metal screen layer, inner restrictive coating and external sheath layer outward, and described inner restrictive coating and external sheath layer all adopt high-density polyethylene to extrude; Between three described insulated wire cores, three core II are also set, described core II forms by extruding polyethylene layer on conductor; Described metal screen layer and block water, between band, control core is also set, described control core forms by extruding polyethylene layer on conductor.
Further, described insulated wire cores twisting pitch is 80～120mm.
Cable of the present invention, at the wrapped gauze that blocks water in insulated wire cores outside, can effectively stop moisture to enter insulation content, improves cable useful life., cable filling of the present invention and band all adopt material water-proof material, can effectively stop moisture to enter cable inside.Invention cable adopts the bilayer sheath that blocks water, and improves greatly cable waterproof performance, can effectively stop moisture to enter cable inside.
brief description of the drawings
Fig. 1 is structural representation of the present invention.
embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
A kind of insulated cable, conductor 1 adopts the zinc-plated soft copper conductor of copper, on described conductor 1, extrude polyethylene layer 2, on described insulating barrier 2, the wrapped gauze 3 that blocks water forms insulated wire cores, three insulated wire cores twist together the also wrapped band 4 that blocks water and form cable core, and the band 5 that blocks water is filled at described cable core place; The described band that blocks water arranges respectively metal screen layer 6, inner restrictive coating 7 and external sheath layer 8 outward, and described inner restrictive coating 7 and external sheath layer 8 all adopt high-density polyethylene to extrude; Between three described insulated wire cores, three core II 9 are also set, described core II 9 forms by extruding polyethylene layer on conductor; Described metal screen layer 6 and block water also to arrange between band 5 and control core 10, described control core forms by extruding polyethylene layer on conductor.
Further, described insulated wire cores twisting pitch is 80～120mm.
In cable of the present invention, oversheath adopts high density polyethylene (HDPE) sheath, (minimum serviceability temperature can reach-70～-100 DEG C to have good resistance to low temperature, chemical stability is good, the erosion (the not resistance to acid with oxidizing property) of the most of soda acids of ability, under normal temperature, be insoluble to common solvent, water absorption is little, and water resistance is good.
Although above the specific embodiment of the present invention has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present invention and change and amendment; when its function producing does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection scope of the present invention.
Claims (2)
1. an insulated cable, it is characterized in that conductor adopts the zinc-plated soft copper conductor of copper, on described conductor, extrude polyethylene layer, on described insulating barrier, the wrapped gauze that blocks water forms insulated wire cores, three insulated wire cores twist together and the wrapped band formation cable core that blocks water, and the band that blocks water is filled at described cable core place; The described band that blocks water arranges respectively metal screen layer, inner restrictive coating and external sheath layer outward, and described inner restrictive coating and external sheath layer all adopt high-density polyethylene to extrude; Between three described insulated wire cores, three core II are also set, described core II forms by extruding polyethylene layer on conductor; Described metal screen layer and block water, between band, control core is also set, described control core forms by extruding polyethylene layer on conductor.
2. a kind of waterproof insulation power cable according to claim 1, feature is that described insulated wire cores twisting pitch is 80～120mm altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071196.3A CN103871634A (en) | 2014-03-01 | 2014-03-01 | Insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071196.3A CN103871634A (en) | 2014-03-01 | 2014-03-01 | Insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103871634A true CN103871634A (en) | 2014-06-18 |
Family
ID=50910072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410071196.3A Pending CN103871634A (en) | 2014-03-01 | 2014-03-01 | Insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103871634A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2824243Y (en) * | 2005-09-06 | 2006-10-04 | 扬州亚光电缆有限公司 | Main loop cable for frequency changer |
| CN200979817Y (en) * | 2006-12-02 | 2007-11-21 | 青岛汉缆集团有限公司 | A mine-used variable-frequency power cable with control conductor |
| US20100186988A1 (en) * | 2007-05-29 | 2010-07-29 | Abb Technology Ag | electric power cable |
| CN202150286U (en) * | 2011-08-25 | 2012-02-22 | 安徽航天电缆集团有限公司 | Umbilical cord cable |
| CN203102892U (en) * | 2013-01-09 | 2013-07-31 | 安徽太平洋电缆集团有限公司 | Tensile and wear-resistant rubber super-flexible cable used for steel-ladle transport vehicle |
| CN203192506U (en) * | 2013-01-22 | 2013-09-11 | 安徽凯博尔特种电缆集团有限公司 | Waterproof insulation power cable |
-
2014
- 2014-03-01 CN CN201410071196.3A patent/CN103871634A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2824243Y (en) * | 2005-09-06 | 2006-10-04 | 扬州亚光电缆有限公司 | Main loop cable for frequency changer |
| CN200979817Y (en) * | 2006-12-02 | 2007-11-21 | 青岛汉缆集团有限公司 | A mine-used variable-frequency power cable with control conductor |
| US20100186988A1 (en) * | 2007-05-29 | 2010-07-29 | Abb Technology Ag | electric power cable |
| CN202150286U (en) * | 2011-08-25 | 2012-02-22 | 安徽航天电缆集团有限公司 | Umbilical cord cable |
| CN203102892U (en) * | 2013-01-09 | 2013-07-31 | 安徽太平洋电缆集团有限公司 | Tensile and wear-resistant rubber super-flexible cable used for steel-ladle transport vehicle |
| CN203192506U (en) * | 2013-01-22 | 2013-09-11 | 安徽凯博尔特种电缆集团有限公司 | Waterproof insulation power cable |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140618 |