CN201181830Y - Low ice-covering optical fiber composite overhead ground wire - Google Patents
Low ice-covering optical fiber composite overhead ground wire Download PDFInfo
- Publication number
- CN201181830Y CN201181830Y CNU2008200320071U CN200820032007U CN201181830Y CN 201181830 Y CN201181830 Y CN 201181830Y CN U2008200320071 U CNU2008200320071 U CN U2008200320071U CN 200820032007 U CN200820032007 U CN 200820032007U CN 201181830 Y CN201181830 Y CN 201181830Y
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- twisted wire
- strand
- wire
- fiber composite
- optical fiber
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Abstract
The utility model relates to a low-ice-coating optical-fiber composite overhead earth wire, which comprises an outer layer ordinary strand (3), an inner layer ordinary strand (2) and an optical unit (4), and is characterized in that the earth wire also comprises an over-striking strand (1) that is stranded in the outer layer ordinary strand (3); the diameter of the over-striking strand (1) is remarkably larger than that of other ordinary strands (2,3); and the stranding direction of the over-striking strand (1) is the same with that of the outer layer strand (3), and the over-striking strand (1) is stranded in the outer layer strand (3) in parallelism to form a sparse helical-shaped projection structure with inhomogenous local surface and the pitch being 8 to 12 times of the diameter of the strand. The earth wire is applied to the power communication line in the region that is frequent to have the ice and snow disasters, and is used as the overhead grounding wire and the power scheduling communication wire. The earth wire has the advantages of high strength, uneasy icing, and no or less wire breaking and tower collapsing rate, duration and long service life.
Description
Technical field
The utility model relates to a kind of built on stilts earth connection that power communication system has optical communication and power circuit concurrently that is used for, and especially has the Optical Fiber composite overhead Ground Wire of low icing performance.
Background technology
In transmission line, Optical Fiber composite overhead Ground Wire replaces built on stilts lightning protection earthing coil holder to hang over the transmission tower top, and is more relatively low than the tensile strength of transmission pressure.The existing rounded easy icing of Optical Fiber composite overhead Ground Wire of cross section can't pass to electric current intensification ice-melt, the mechanical removal of also can not manually reaching the standard grade behind the icing.Self gravitation and apply additional tension to shaft tower behind icing as the paratonia imbalance of shaft tower both sides, causes that the Optical Fiber composite overhead Ground Wire broken string causes very big unbalance impact to shaft tower.As resemble the serious icing of continuous freezing sleety weather circuit of in January, 2008 and cause broken string, fall tower, cause power communication system to interrupt the such serious disaster of national large-area power-cuts.
Summary of the invention
In order to overcome existing fiber composite overhead ground wire anti-ice cover or low icing ability is lower, easily cause the deficiency of hanging ice, broken string, falling accidents such as tower, the utility model provides a kind of low icing Optical Fiber composite overhead Ground Wire, makes it be difficult for icing, and is durable, and the life-span is long.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of low icing Optical Fiber composite overhead Ground Wire, comprise outer common twisted wire, the common twisted wire of internal layer and light unit, it is characterized in that also being included in and twist the overstriking twisted wire in the outer common twisted wire layer, the diameter of this overstriking twisted wire significantly is coarser than other common twisted wires, be stranded in side by side in the outer common twisted wire layer to identical with outer twisted wire strand, form the sparse helical form ridge structure that the appearance part is significantly uneven, pitch is 8～12 times of twisted wire diameters; The radical of overstriking twisted wire is one, two or many, and the number of plies of above-mentioned common twisted wire layer is individual layer, bilayer or multilayer, and the strand of inside and outside adjacent two twisted wire layers is on the contrary, and the strand of outermost twisted wire layer is to being dextrad; The central core of twisted wire can be in the common twisted wire, also can be the light unit suitable with common twisted wire diameter; The light unit radical that is stranded in the internal layer twisted wire is one, two or many.
The beneficial effects of the utility model are because to have adopted the overstriking twisted wire to twist in the outer twisted wire layer to form cross section be that the abnormity of non-circle swells thick muscle, improved intensity, the thick muscle ridge structure of abnormity is also shunted rainwater, stop effectively and hang the water freezing phenomenon, this is more far better than existing easily icing surperficial uniform cylindrical cable.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model cross-sectional structure figure.
In Fig. 1: 1. overstriking twisted wire, the 2. common twisted wire of internal layer, 3. outer common twisted wire, 4. smooth unit.
Embodiment
In Fig. 1, a kind of low icing Optical Fiber composite overhead Ground Wire, comprise outer common twisted wire (3), the common twisted wire of internal layer (2) and light unit (4), it is characterized in that also being included in and twist overstriking twisted wire (1) in the outer common twisted wire layer (3), the diameter of this overstriking twisted wire (1) significantly is coarser than other common twisted wires (2,3), and be stranded in side by side in outer twisted wire (3) layer to identical with the common twisted wire of skin (3) strand, forming the local remarkable uneven pitch of appearance is the sparse helical surface ridge structure of 8～12 times of twisted wire diameters, the radical of overstriking twisted wire (1) is one, two or many, above-mentioned common twisted wire layer (2,3) the number of plies is an individual layer, bilayer or multilayer, the strand of inside and outside adjacent two twisted wire layers is on the contrary, the strand of outermost twisted wire layer is to being dextrad, the central core of twisted wire can be a common twisted wire (2,3) or with common twisted wire (2,3) the light unit (4) that diameter is suitable, the radical that is stranded in the light unit (4) in internal layer twisted wire (2) layer is one, two or many.In addition to the implementation; the utility model is different by the radical of the radical of the number of plies of common twisted wire (2,3), overstriking twisted wire (1) and light unit (4); can also combination and variation go out other many execution modes; the technical scheme of all employing equivalents or equivalent transformation all drops on the protection range of the utility model requirement.
Claims (5)
1, a kind of low icing Optical Fiber composite overhead Ground Wire, comprise outer common twisted wire (3), the common twisted wire of internal layer (2) and light unit (4), it is characterized in that also being included in and strandedly in outer common twisted wire (3) layer advance overstriking twisted wire (1), the diameter of this overstriking twisted wire significantly is coarser than other common twisted wires, twist to identical with outer twisted wire (3), be stranded in side by side in outer twisted wire (3) layer, forming the remarkable uneven pitch of local surfaces is the sparse helical form ridge structure of 8～12 times of twisted wire diameters.
2, a kind of low icing Optical Fiber composite overhead Ground Wire according to claim 1, the radical that it is characterized in that overstriking twisted wire (1) is one, two or many.
3, a kind of low icing Optical Fiber composite overhead Ground Wire according to claim 1, the number of plies that it is characterized in that common twisted wire layer is one deck, two-layer or multilayer, and the strand of inside and outside adjacent two twisted wire layers is on the contrary, and the strand of outermost twisted wire layer is to being dextrad.
4, a kind of low icing Optical Fiber composite overhead Ground Wire according to claim 1 is characterized in that central core can be in the common twisted wire (2,3), also can be and the suitable light unit of common twisted wire (2,3) diameter.
5, a kind of low icing Optical Fiber composite overhead Ground Wire according to claim 1 is characterized in that light unit (4) radical that is stranded in the common twisted wire of internal layer (2) layer is one, two or many.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200320071U CN201181830Y (en) | 2008-03-06 | 2008-03-06 | Low ice-covering optical fiber composite overhead ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200320071U CN201181830Y (en) | 2008-03-06 | 2008-03-06 | Low ice-covering optical fiber composite overhead ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181830Y true CN201181830Y (en) | 2009-01-14 |
Family
ID=40251324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200320071U Expired - Lifetime CN201181830Y (en) | 2008-03-06 | 2008-03-06 | Low ice-covering optical fiber composite overhead ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181830Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789840A (en) * | 2012-08-09 | 2012-11-21 | 江苏宏图高科技股份有限公司 | Ice melting optical fiber composite overhead ground wire or ice melting ground wire, ice melting method and matched device |
| CN103400650A (en) * | 2013-08-14 | 2013-11-20 | 国家电网公司 | Layer stranded metal heavy-load optical cable and erection method thereof |
-
2008
- 2008-03-06 CN CNU2008200320071U patent/CN201181830Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789840A (en) * | 2012-08-09 | 2012-11-21 | 江苏宏图高科技股份有限公司 | Ice melting optical fiber composite overhead ground wire or ice melting ground wire, ice melting method and matched device |
| CN103400650A (en) * | 2013-08-14 | 2013-11-20 | 国家电网公司 | Layer stranded metal heavy-load optical cable and erection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU TONGGUANG OPTICAL CABLE CO., LTD. Free format text: FORMER OWNER: TONGGUANG GROUP LTD. Effective date: 20090619 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090619 Address after: Haimen Development Zone Haimen port, Jiangsu, No. 3966, 226100 Patentee after: Jiangsu Tongguang Optical Fiber Cable Co., Ltd. Address before: Private Town Haimen in Jiangsu province through the light Avenue No. 88, zip code: 226151 Patentee before: Tongguang Group Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |
|
| CX01 | Expiry of patent term |