CN101996704A - White ant-prevention underground control cable - Google Patents
White ant-prevention underground control cable Download PDFInfo
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- CN101996704A CN101996704A CN2009101847743A CN200910184774A CN101996704A CN 101996704 A CN101996704 A CN 101996704A CN 2009101847743 A CN2009101847743 A CN 2009101847743A CN 200910184774 A CN200910184774 A CN 200910184774A CN 101996704 A CN101996704 A CN 101996704A
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- polyolefin
- cable
- galvanized steel
- prevention
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Abstract
The invention provides a white ant-prevention underground control cable, relating to the technical field of cables. The white ant-prevention underground control cable comprises three sets of wire cores twisted with each other, each set of wire core comprises a conductor and a PVC (polyvinyl chloride) insulating layer, wherein the conductor is arranged on an inner layer, and the PVC insulating layer is arranged on an outer layer; the peripheries of the three sets of wire cores are provided with copper strip-wrapped shielding layers and drainage wires, the peripheries of the copper strip-wrapped shielding layers and the drainage wires are provided with polyolefin inner protecting layers, the peripheries of the polyolefin inner protecting layers are provided with galvanized steel-strip armouring layers, and the peripheries of the galvanized steel-strip armouring layers are provided with white ant-prevention polyolefin outer protecting layers. As the outermost layers are provided with the white ant-prevention polyolefin outer protecting layers, the white ant-prevention underground control cable can prevent nibbling of animals, such as white ants and the like, has excellent performance in environmental protection and can prevent environmental pollution. As the galvanized steel-strip armouring layers are arranged in the outer protecting layers, the pressure resistance of the cable is increased. As the polyolefin inner protecting layers are arranged in the galvanized steel-strip armouring layers, and the copper strip-wrapped shielding layers are arranged in the polyolefin inner protecting layers, the shielding effect of the cable is enhanced, thereby the outside interference resistance of the cable is ensured.
Description
Technical field
The present invention relates to the technical field of cable, particularly termite-proof buried control cable.
Background technology
Cable application is out of doors the time, and regular meeting is subjected to the infringement of nibbling of animals such as termite, causes the internal core wire of cable easily to go to pot, thereby has influenced the correct transmission of power supply safety and signal.Cable is termite-proof at present, and common method is to add the medicine type anti-termite agent in cable, can damage the performance of cable, and the medicine type anti-termite agent all is poisonous usually, can cause the pollution of noxious substance, along with the environmental requirement that improves day by day, the use that often is under an embargo of this cable.
Summary of the invention
The object of the present invention is to provide a kind of termite-proof buried control cable that can effectively prevent termite attack, long service life.
The present invention includes three groups of stranded cores mutually, every group of core comprises the conductor that is arranged on internal layer and is arranged on outer field PVC insulating barrier, periphery at three groups of cores is provided with copper strips lapped shielding layer and drainage thread, periphery at copper strips lapped shielding layer and drainage thread is provided with the polyolefin sheath, periphery at the polyolefin sheath is provided with the galvanized steel strip armour, in the periphery of galvanized steel strip armour termite-proof polyolefin outer jacket is set.
The present invention is provided with termite-proof polyolefin outer jacket at outermost layer, can prevent that animals such as termite from nibbling, and the feature of environmental protection is strong, can prevent contaminated environment.The galvanized steel strip armour is set in the outer jacket, increases the withstand voltage properties of cable.The polyolefin sheath is set in the galvanized steel strip armour, the copper strips lapped shielding layer is set in the polyolefin sheath,, guarantee the anti-external interference ability of cable to strengthen the shield effectiveness of cable.
Termite-proof performance of the present invention adopts the method for knocking down to test by GB BG2951-86.Test is regularly observed, and begins to have termite to go down after 60 minutes.KT50 is 124 minutes.All termites were gone down in 450 minutes, were better than the termite-proof performance of national Specification.The present invention has reached termite-proof requirement.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1, termite-proof buried control cable, comprise three groups of stranded cores mutually, every group of core comprises the conductor 1 that is arranged on internal layer and is arranged on outer field PVC insulating barrier 2, the periphery of the core after stranded is provided with copper strips lapped shielding layer and drainage thread 3, periphery at copper strips lapped shielding layer and drainage thread 3 is provided with polyolefin sheath 4, in the periphery of polyolefin sheath 4 galvanized steel strip armour 5 is set, and in the periphery of galvanized steel strip armour 5 termite-proof polyolefin outer jacket 6 is set.
Claims (1)
1. termite-proof buried control cable, it is characterized in that comprising three groups of stranded cores mutually, every group of core comprises the conductor that is arranged on internal layer and is arranged on outer field PVC insulating barrier, periphery at three groups of cores is provided with copper strips lapped shielding layer and drainage thread, periphery at copper strips lapped shielding layer and drainage thread is provided with the polyolefin sheath, periphery at the polyolefin sheath is provided with the galvanized steel strip armour, in the periphery of galvanized steel strip armour termite-proof polyolefin outer jacket is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101847743A CN101996704A (en) | 2009-08-14 | 2009-08-14 | White ant-prevention underground control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101847743A CN101996704A (en) | 2009-08-14 | 2009-08-14 | White ant-prevention underground control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101996704A true CN101996704A (en) | 2011-03-30 |
Family
ID=43786715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101847743A Pending CN101996704A (en) | 2009-08-14 | 2009-08-14 | White ant-prevention underground control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101996704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928115A (en) * | 2013-09-29 | 2014-07-16 | 安徽华峰电缆集团有限公司 | Double-sheath anti-static tensile mobile control cable |
-
2009
- 2009-08-14 CN CN2009101847743A patent/CN101996704A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928115A (en) * | 2013-09-29 | 2014-07-16 | 安徽华峰电缆集团有限公司 | Double-sheath anti-static tensile mobile control cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |