CN203300300U - Environment-friendly weather-proof luminescent type longitudinal-water-resistance overhead cable - Google Patents
Environment-friendly weather-proof luminescent type longitudinal-water-resistance overhead cable Download PDFInfo
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- CN203300300U CN203300300U CN2013202857091U CN201320285709U CN203300300U CN 203300300 U CN203300300 U CN 203300300U CN 2013202857091 U CN2013202857091 U CN 2013202857091U CN 201320285709 U CN201320285709 U CN 201320285709U CN 203300300 U CN203300300 U CN 203300300U
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- overhead cable
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Abstract
An environment-friendly weather-proof luminescent type longitudinal-water-resistance overhead cable belongs to the technical field of cables. The overhead cable comprises a cable core and an insulation layer arranged outside the cable core. The overhead cable is characterized in that the cable core is formed by twisting a plurality of copper conductors; the gaps among the copper conductors are filled with semiconduction single-side water-resistant belts; a semiconduction shielding layer and a cross-linked polyethylene insulation layer provided with non-carbon-black type liquid ultraviolet-ray-resistant absorbers are arranged on the cable core in a co-extrusion way; and a luminescent layer made of rare earth aluminate light-storing type luminescent powder is arranged on the cross-linked polyethylene insulation layer in an extrusion way. The overhead cable which has the characteristics of environment protection, weather resistance, luminescent ability at night and longitudinal water resistance solves the problems that positions and distribution conditions of conventional overhead cables are not easily clearly observed at night; and sometimes electrified leads fall and injure humans. The overhead cable can warn users to the greatest extent. The safety of the cable is protected. The overhead cable can be prevented from being accidentally damaged and broken in a pressing way.
Description
Technical field
The utility model relates to a kind of structure of cable, but the structure of especially a kind of environmental protection, weather-proof light emitting-type longitudinal water-blocking aerial cable belongs to the cable technology field.
Background technology
Aerial insulated cable since coming out, just economic and practical favor and development that has obtained countries in the world in urban and rural power grids because of it.The application of aerial insulated cable has improved the reliability of urban power distribution network, efficiently solves " line tree contradiction " that urban afforestation exists, has reduced power outage, prevents electric shock accidents, has ensured personal safety.
But also deposit an outstanding problem in the aerial insulated cable running: broken string and water-tight problem.Suspended insulated guide wire, owing to moving in natural environment for a long time, after rainwater immerses from joint, easily causes cable conductor fusing fault, causes broken string.The stop water of China's power cable is to be referred from telecommunication cable mostly now, is mainly to reach and prevent that moisture from seeing through sheath and penetrating into the purpose of insulating barrier by the water layer of strengthening defences.Realize comprehensively blocking water of cable, not only will consider cable moisture penetration radially, also will consider that effective prevention moisture invades after cable the longitudinal diffusion along cable.If do not consider the longitudinal water-blocking of cable, when sheath was poorly sealed or damaged, the moisture that is immersed in cable inside can cause whole cable to scrap along the cable longitudinal diffusion, and loss is enlarged.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provide a kind of environmental protection, weather-proof, night can be luminous, the aerial cable of longitudinal water-resisting.
The purpose of this utility model is achieved through the following technical solutions: but environmental protection, weather-proof light emitting-type longitudinal water-blocking aerial cable, comprise cable core and be arranged on the outer insulating barrier of cable core, it is characterized in that, described cable core is by stranded the forming of copper conductor that is provided with semiconductive single face waterstop in many interradicular spaces layer, cable core is provided with semiconductive shielding layer and the crosslinked polyetylene insulated layer that adopts the double-layer coextrusion mode to extrude, semiconductive shielding layer is in crosslinked polyetylene insulated layer, and crosslinked polyetylene insulated layer outer surface is extruded with luminescent layer.
Described copper conductor is 7.
The utility model, by the research to the insulation formula, is realized the environmental protection of visible at night, the insulated cable of weatherability, adopts initiative absorbent material-semiconductive single face waterstop break process on structural design, has realized the longitudinal water-blocking of aerial cable.At first adopt initiative absorbent material-semiconductive single face waterstop to block water, and by it being carried out break process and improving the method for conductor screen extrusion pressure, under the prerequisite that does not reduce the conductor electric property, thereby realize the performance of cable longitudinal water-blocking; Next improves by the insulation to the aerial cable that blocks water, makes it have environmental protection, weather-proof, lighting function.
In the utility model, conductor layer adopts the technology of pressing of the 2nd kind of conductor of the clean low gap of ultraphotic, for fineness and the tightness that improves conductor, be optimized from drawing mould and lay configuration, take front road mould to select tungsten steel die ,Wei road to adopt to receive the scheme of coating mould, thereby not only guaranteed the fineness of conductor but also reduced the cost of moulds of industrial equipment; And the structure to conductor is finely tuned, and the single line of a small amount of internal layer is moved to outermost layer, thereby in the tightness degree that guarantees to have improved under the substantially constant prerequisite of conductor size conductor.
Place waterstop in the stranded conductor clearance layer, then, by normal stranded pressing of conductor, make conductor substantially not have gap, to reach the effect of longitudinal water-blocking.Its advantage is as follows: semiconductive material can prevent from causing due to the reason of filling isolation the deterioration of the electric property of conductor; Make conductor block water and become " initiatively waterproof after suction " by general " static passive blocking water ", waterstop can expand rapidly after meeting water, and can form the higher gel of intensity, is desirable initiative absorbent material.Stranded at conductor in order to prevent, there will be while pressing block water take up, phenomenon of rupture, can cause when serious producing and can't normally carrying out, for head it off, also designed a kind of special " V font " member, and according to different stranded layers, adjusted the angle number of degrees, thereby make waterstop while producing at the uniform velocity and not to be fed to rotatably in the conductor stranded layer.Stranded at conductor, while pressing, waterstop there will be situation about not exclusively being filled in the single line gap, part single line can be isolated by it, thereby cause the decline of conductor block-water performance and the deterioration of electric property, adopt stranded one side, one side to drip for this reason and be coated with special organic solvent, finally make waterstop moisture absorption after-tack, realized waterstop to complete even fragmentation after the strength through overcompaction and in all being filled into equably the gap of every single line, to reach connection between conductor and the longitudinal water-blocking performance of conductor.
Adopt the mode of double-layer coextrusion to extrude semiconductive shielding layer and crosslinked polyetylene insulated layer, insulation is thermosets, and hydrone is difficult for passing through, and has the ability of certain waterproof infiltration., because conductor shield is " thermoplasticity ",, in order conscientiously to guarantee the consistent of insulating barrier physical property, selected low-resistivity cross-linking type conductor screen material to serve as interior screen.Generally, even the conductor compacting coefficient is large again, also exist gap, this is also the passage of water translocation,, by designing special extruded mould, increase and to extrude " pressure angle ", and conductor screen respectively distinguished temperature under guaranteed performance and the prerequisite extruded, improve 2～3 ℃, thereby made inner shield material completely densified conductor gap.
Insulating barrier, by adding non-carbon black type liquid ultraviolet-resistant absorbent, under the prerequisite of the basic mechanical-physical that does not reduce insulating barrier and electric property, has been realized the uvioresistant characteristic of the crosslinked polyetylene insulated layer of true qualities.Secondly be not easy to see clearly cable position and distribution situation at night in order to have solved existing aerial cable, adopt sleeve surface to be extruded with luminescent layer, its main raw material(s) is the light-accumulative luminous powder of rare earth aluminate, when the light source irradiations such as visible light, ultraviolet ray are arranged, its luminous energy can be saved, under dark state, then the luminous energy of saving is slowly released generation fluorescence, reach purpose luminous under pitch-dark environment.
The utility model, by to the insulation formulating, is realized the weathering characteristics of the crosslinked polyetylene insulated layer of true qualities.For can be luminous under night and dark environment; image demonstrate the electric wire position; and solved existing aerial cable and be not easy to see clearly cable position and distribution situation at night; the problem that the casualty accident that causes making live wire to fall causing happens occasionally; and warn to greatest extent the user; the safety of protection cable, avoid accident to weigh, break cable wounded.
Description of drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1 copper conductor, 2 semiconductive single face waterstops, 3 semiconductive shielding layers, 4 crosslinked polyetylene insulated layers, 5 luminescent layers.
Embodiment
But environmental protection, weather-proof light emitting-type longitudinal water-blocking aerial cable, comprise cable core and be arranged on the outer insulating barrier of cable core.Cable core is by stranded the forming of copper conductor 1 that is provided with semiconductive single face waterstop 2 in 7 interradicular space layers, adopt the mode of double-layer coextrusion to extrude semiconductive shielding layer 3 and crosslinked polyetylene insulated layer 4 on cable core, be extruded with the luminescent layer 5 of being made by the light-accumulative luminous powder of rare earth aluminate on crosslinked polyetylene insulated layer 4.
Claims (2)
1. but an environmental protection, weather-proof light emitting-type longitudinal water-blocking aerial cable, comprise cable core and be arranged on the outer insulating barrier of cable core, it is characterized in that, described cable core is by stranded the forming of copper conductor that is provided with semiconductive single face waterstop in many interradicular spaces layer, cable core is provided with semiconductive shielding layer and the crosslinked polyetylene insulated layer that adopts the double-layer coextrusion mode to extrude, semiconductive shielding layer is in crosslinked polyetylene insulated layer, and crosslinked polyetylene insulated layer outer surface is extruded with luminescent layer.
2. but environmental protection according to claim 1, weather-proof light emitting-type longitudinal water-blocking aerial cable is characterized in that described copper conductor is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202857091U CN203300300U (en) | 2013-05-23 | 2013-05-23 | Environment-friendly weather-proof luminescent type longitudinal-water-resistance overhead cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202857091U CN203300300U (en) | 2013-05-23 | 2013-05-23 | Environment-friendly weather-proof luminescent type longitudinal-water-resistance overhead cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300300U true CN203300300U (en) | 2013-11-20 |
Family
ID=49576295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202857091U Expired - Fee Related CN203300300U (en) | 2013-05-23 | 2013-05-23 | Environment-friendly weather-proof luminescent type longitudinal-water-resistance overhead cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108932990A (en) * | 2018-05-16 | 2018-12-04 | 浙江万马股份有限公司 | From temperature-sensitive from early warning longitudinal water-blocking aerial cable and preparation method thereof, detection device |
-
2013
- 2013-05-23 CN CN2013202857091U patent/CN203300300U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108932990A (en) * | 2018-05-16 | 2018-12-04 | 浙江万马股份有限公司 | From temperature-sensitive from early warning longitudinal water-blocking aerial cable and preparation method thereof, detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20200523 |