CN204667966U - Cross-river tunnel Special electric cable - Google Patents
Cross-river tunnel Special electric cable Download PDFInfo
- Publication number
- CN204667966U CN204667966U CN201520376266.6U CN201520376266U CN204667966U CN 204667966 U CN204667966 U CN 204667966U CN 201520376266 U CN201520376266 U CN 201520376266U CN 204667966 U CN204667966 U CN 204667966U
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- Prior art keywords
- flame retardant
- strand
- copper wire
- cores
- high flame
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- Expired - Fee Related
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Abstract
Cross-river tunnel Special electric cable, relates to the design field of cross-river tunnel Special electric cable.The utility model comprises four strand insulation cores, sets gradually the wrapped belt of high flame retardant, double-deck waterstop lapping layer, polytetrafluoroethyllining lining layer, the braiding of high-carbon seizing wire armour, nonwoven fabrics tighten layer, restrictive coating and aluminium strip overcoat outside four strand insulation cores; Graphite linings is smeared outside aluminium strip overcoat; Between four strand insulation cores and the wrapped belt of high flame retardant, high flame retardant gasket for packing is set; Per share insulated wire cores comprises copper wire bundle strand conductor respectively, arranges high-carbon zinc-coated wire and water blocking yarn respectively at the center of copper wire bundle strand conductor; Full tetrafluoroethene insulating barrier is gathered in the arranged outside of copper wire bundle strand conductor.The utility model is simple and reasonable, have that water resistance is good, long service life, environmental protection, the feature that anticorrosive, tensile strength is high.
Description
Technical field
The utility model relates to the design field of cross-river tunnel Special electric cable.
Background technology
Along with Chinese society rapid development of economy, traffic infrastructure is vigorously built, and a large amount of traffic engineering, from surface development to underground, develops under water from waterborne.The construction of especially a large amount of cross-river tunnel engineerings, can alleviate the pressure of traffic greatly.The construction of these engineerings needs a large amount of high-performance, high standard, special electric wire supporting with it, and the electric wire produced by existing national standards is can not meet the demand of engineering construction and power transmission and transformation.The control cables produced by existing national standards can not meet cross-river tunnel with mainly contain following some: 1. conductor tensile strength is inadequate, and conductor is non-watertight.2. insulating material is easily aging, produces a large amount of toxic gas, resistance to ambient temperature is low after non-refractory, not oil resistant, burning.3. packing material not fire-retardant, non-watertight, do not block water.4. overcoat easily breaks into water in mounting and installation process, and after water inlet, armour becomes rusty, etching insulative causes and punctures.Antibiont destructive power is not strong.5. whole cable tensile strength is inadequate, and cable easily drops after laying, and destroys cable internal structure, easily causes cable short circuit.The control cables meeting this characteristic of cross-river tunnel must be had according to above-mentioned situation, the requirement of engineering can be met.
Utility model content
The utility model object is for above problem, provide that a kind of water resistance is good, long service life, environmental protection, the cross-river tunnel Special electric cable that anticorrosive, tensile strength is high.
The utility model comprises four strand insulation cores, sets gradually the wrapped belt of high flame retardant, double-deck waterstop lapping layer, polytetrafluoroethyllining lining layer, the braiding of high-carbon seizing wire armour, nonwoven fabrics tighten layer, restrictive coating and aluminium strip overcoat outside described four strand insulation cores; Graphite linings is smeared outside described aluminium strip overcoat; Between described four strand insulation cores and the wrapped belt of high flame retardant, high flame retardant gasket for packing is set; Per share insulated wire cores comprises copper wire bundle strand conductor respectively, arranges high-carbon zinc-coated wire and water blocking yarn respectively at the center of described copper wire bundle strand conductor; Full tetrafluoroethene insulating barrier is gathered in the arranged outside of described copper wire bundle strand conductor.
The utility model adopts QXT-3 high flame retardant gasket for packing, this material environment resistant temperature high (more than 200 DEG C), high flame retardant, and smokeless, tasteless after burning, suppleness is high, can effectively improve whole cable anti-flammability; Adopt aluminium strip ripple compressing, can effectively prevent cable from laid processes, damaging cable, long-time running effectively prevents moisture from entering, and corrosion cable core causes cable short circuit; Aluminium strip overcoat skin smears graphite, prevents cable from producing electrostatic.The utility model is simple and reasonable, have that water resistance is good, long service life, environmental protection, the feature that anticorrosive, tensile strength is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises four strand insulation cores 1, sets gradually the wrapped belt of high flame retardant 2, double-deck waterstop lapping layer 3, polytetrafluoroethyllining lining layer 4, the braiding of high-carbon seizing wire armour 5, nonwoven fabrics tighten layer 6, restrictive coating 7 and aluminium strip overcoat 8 outside four strand insulation cores 1; Graphite linings 9 is smeared outside aluminium strip overcoat 8; Between four strand insulation cores 1 and the wrapped belt 2 of high flame retardant, high flame retardant gasket for packing 10 is set; Per share insulated wire cores 1 comprises copper wire bundle strand conductor 11 respectively, arranges high-carbon zinc-coated wire 12 and water blocking yarn 13 respectively at the center of copper wire bundle strand conductor 11; Full tetrafluoroethene insulating barrier 14 is gathered in the arranged outside of copper wire bundle strand conductor 11.
Claims (1)
1. cross-river tunnel Special electric cable, it is characterized in that: comprise four strand insulation cores, outside described four strand insulation cores, set gradually the wrapped belt of high flame retardant, double-deck waterstop lapping layer, polytetrafluoroethyllining lining layer, the braiding of high-carbon seizing wire armour, nonwoven fabrics tighten layer, restrictive coating and aluminium strip overcoat; Graphite linings is smeared outside described aluminium strip overcoat; Between described four strand insulation cores and the wrapped belt of high flame retardant, high flame retardant gasket for packing is set; Per share insulated wire cores comprises copper wire bundle strand conductor respectively, arranges high-carbon zinc-coated wire and water blocking yarn respectively at the center of described copper wire bundle strand conductor; Full tetrafluoroethene insulating barrier is gathered in the arranged outside of described copper wire bundle strand conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376266.6U CN204667966U (en) | 2015-06-04 | 2015-06-04 | Cross-river tunnel Special electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376266.6U CN204667966U (en) | 2015-06-04 | 2015-06-04 | Cross-river tunnel Special electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204667966U true CN204667966U (en) | 2015-09-23 |
Family
ID=54138326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520376266.6U Expired - Fee Related CN204667966U (en) | 2015-06-04 | 2015-06-04 | Cross-river tunnel Special electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204667966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534380A (en) * | 2021-07-12 | 2021-10-22 | 江苏中天科技股份有限公司 | Polyolefin sheath, preparation method thereof and fire-resistant nonmetal optical fiber ribbon cable |
-
2015
- 2015-06-04 CN CN201520376266.6U patent/CN204667966U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534380A (en) * | 2021-07-12 | 2021-10-22 | 江苏中天科技股份有限公司 | Polyolefin sheath, preparation method thereof and fire-resistant nonmetal optical fiber ribbon cable |
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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 |
Granted publication date: 20150923 Termination date: 20200604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |