CN2729747Y - Protecting ring for aerial self-supporting optical cable - Google Patents
Protecting ring for aerial self-supporting optical cable Download PDFInfo
- Publication number
- CN2729747Y CN2729747Y CN 200420079276 CN200420079276U CN2729747Y CN 2729747 Y CN2729747 Y CN 2729747Y CN 200420079276 CN200420079276 CN 200420079276 CN 200420079276 U CN200420079276 U CN 200420079276U CN 2729747 Y CN2729747 Y CN 2729747Y
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- China
- Prior art keywords
- optical cable
- self
- stilts
- built
- protection ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a protecting ring for aerial self-supporting optical cable, which is a casing tube (1) sheathed on the outer surface of the optical cable. The casing tube (1) adopts stabbing sealing connection by two semi-tube bodies (2). When the semi-tube bodies (2) form the casing tube, the internal diameter of both ends is a little smaller than the diameter of the optical cable. The outer surface of the semi-tube bodies (2) is provided with at least one half ring body (3) bulging radically outward. Adopting above structure, the guard ring blocks the contamination to the surface of the optical cable and the electric leakage circuit between the water film and the grounded optical cable hardware fittings. Even though leakage current is possible, the utility model can lead dry belt to edge of guard ring, discharge on the guard ring, and effectively protect the optical cable.
Description
Technical field
The utility model relates to a kind of protection ring of built on stilts self-support cable.
Background technology
Built on stilts self-support cable is the optical cable that adopts built on stilts mode to use on electric power transmission line bar line, because this optical cable uses in certain electric field intensity scope, optical cable hanging point electric field intensity is usually between 12KV-20KV when using on 110KV, 220KV circuit especially, some hanging point in addition to more than the 30KV, especially can electrocorrosion often take place in salt fog and with serious pollution area damage optical cable in this case.Because be in the powerful electric field of lead surrounding space existence during optical cable work, optical cable makes it to be in the position of a space potential to the coupling capacitance between lead and the earth, under the effect of space potential, the dirt on optical cable surface or ponding produce an earth leakage stream to the gold utensil of ground connection, this electric current produces the water evaporates that heat makes the optical cable surface, in the water evaporates process, can form the leakage current on dry zone blocking light cable surface randomly, will produce discharge and form electric arc when the current potential at dry zone two ends is enough high, this electric arc can produce corrosion even punctures or burn out optical cable the optical cable surface.The method that addresses this problem both at home and abroad at present mainly is the scheme of the different supporting installation of gold utensil of hanging point, the employing of control optical cable, the effective measures that do not tackle the problem at its root.
Summary of the invention
The utility model provides a kind of and can stop the protection ring that produces the built on stilts self-support cable of electric discharge phenomena on the optical cable surface for solving the problems of the technologies described above.
The utility model is achieved in that a kind of protection ring of built on stilts self-support cable; it is the insulating sleeve that is enclosed within the optical cable outside surface; described sleeve pipe adopts the make-up mode to be tightly connected by two semicanal bodies; the internal diameter at two ends was slightly smaller than the diameter of optical cable when the semicanal body was combined into sleeve pipe, and the outer surface of tube body of semicanal body is provided with a hemizonid of projection radially outward at least.
For seamlessly transitting, the hemizonid outer ring edge is curved between hemizonid described in the utility model and semicanal body; Correspondence is provided with a plurality of tapped through holes on the position that described two semicanal bodies combine, and connects by screw between the tapped through hole; The endoporus of described sleeve pipe is the reducing hole, and the minimum diameter in reducing hole is slightly smaller than the diameter of optical cable, and described tapped through hole is positioned at the minimum diameter position of sleeve pipe.
The relative faying face of described two hemizonids is concavo-convex interface; Described two semicanal body inside are provided with rigid gasket at the position of tapped through hole; Described sleeve pipe is a silastic material.
After adopting said structure, the outer surface of tube body of semicanal body is provided with the hemizonid of projection radially outward, and it has just blocked the leakage current path between the optical fiber cable fitting of the pollution on optical cable surface and moisture film and ground connection.Even might form leakage current; because for seamlessly transitting, the hemizonid outer peripheral face is curved between hemizonid and the semicanal body, so at the dry zone of the easiest formation in ring edge place of protection ring; be that it can cause dry zone on the outer ring edge of protection ring, will on protection ring, discharge like this.Because protection ring is the material of silicon rubber or similar performance, has good insulation performance and heat resistance, can prevent the damage of electrical discharge arc to protection ring, thereby protect optical cable effectively.Sleeve pipe is made up of two semicanal bodies, can easily protection ring be installed in the optical cable outside surface.The diameter at cover pipe orifice two ends is slightly smaller than the diameter of optical cable, and sleeve pipe closely is connected with optical cable, can stop the formation of leakage current.The endoporus of sleeve pipe is the reducing hole, and tapped through hole is positioned at the minimum diameter position of sleeve pipe, and is easy installation and reliable.If the internal diameter integral body of sleeve pipe all is slightly smaller than optic cable diameter, just need very big screw threads for fastening power, very effort just is installed, and is not easy to realize combining closely and seal request.Two relative faying faces of hemizonid are concavo-convex interface, in conjunction with tight.Semicanal body inside is provided with rigid gasket at the position of tapped through hole, the firm and reliable connection between the semicanal body.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is an outside drawing of the present utility model
Fig. 2 is the structural representation of semicanal body of the present utility model
Fig. 3 is the A-A cut-open view of Fig. 1
Fig. 4 is the side view of Fig. 2
Fig. 5 is installed in synoptic diagram on the optical cable for the utility model protection ring
Embodiment
With reference to accompanying drawing; the protection ring of the built on stilts self-support cable of the utility model, it is the change internal diameter insulating sleeve 1 that is enclosed within optical cable 6 outside surfaces, its material can adopt silicon rubber; performance conforms to silicon rubber insulator, has good insulation performance performance, heat resistance and ageing-resistant performance.Sleeve pipe 1 is tightly connected by two semicanal bodies 2 and forms, and corresponding site is provided with tapped through hole 4 on the relative face of two semicanal bodies 2, connects by screw between the tapped through hole 4.Semicanal body 2 inside are placed with rigid gasket 9 at the position of tapped through hole 4, as iron plate etc., to increase the reliability that screw connects.The internal diameter size of semicanal body 2 changes in turn, and the two ends internal diameter is little, and little internal diameter is slightly less than the diameter of optical cable 6, and tapped through hole 4 is arranged on the little position of internal diameter.When semicanal body 2 was formed sleeve pipe 1, endoporus 5 was the reducing hole, can be sleeved on tightly on the optical cable 6.Semicanal body 2 outside surfaces have a hemizonid 3 of projection radially outward at least, and for seamlessly transitting, hemizonid 3 outer ring edges are curved between hemizonid 3 and the semicanal body 2.Another concaves two hemizonid 3 one relative of faying faces to outer lug, is concavo-convex interface, and such two hemizonids 3 connect tightr.Optical cable is installed between the power transmission line shaft tower 7 during use, and protection ring is enclosed within outside the optical cable 6, abuts against optical fiber cable fitting 8 terminal installations.
Claims (7)
1, a kind of protection ring of built on stilts self-support cable; it is characterized in that it is the insulating sleeve (1) that is enclosed within the optical cable outside surface; described sleeve pipe (1) adopts the make-up mode to be tightly connected by two semicanal bodies (2); the internal diameter at two ends was slightly smaller than the diameter of optical cable when semicanal body (2) was combined into sleeve pipe (1), and the outer surface of tube body of semicanal body (2) is provided with a hemizonid (3) of projection radially outward at least.
2, the protection ring of built on stilts self-support cable according to claim 1 is characterized in that between described hemizonid (3) and the semicanal body (2) that for seamlessly transitting, hemizonid (3) outer ring edge is curved.
3, according to the protection ring of claim 1 or 2 described built on stilts self-support cables, it is characterized in that the position correspondence that described two semicanal bodies (2) combine is provided with a plurality of tapped through holes (4), tapped through hole connects by screw between (4).
4, the protection ring of built on stilts self-support cable according to claim 3; the endoporus (5) that it is characterized in that described sleeve pipe (1) is the reducing hole; the minimum diameter in reducing hole is slightly smaller than the diameter of optical cable, and described tapped through hole (4) is positioned at the minimum diameter position of sleeve pipe (1).
5, the protection ring of built on stilts self-support cable according to claim 2 is characterized in that the relative faying face of described two hemizonids (3) is concavo-convex interface.
6, the protection ring of built on stilts self-support cable according to claim 1 is characterized in that described two semicanal bodies (2) inside is provided with rigid gasket (9) at the position of tapped through hole (4).
7, the protection ring of built on stilts self-support cable according to claim 1 is characterized in that described sleeve pipe (1) is a silastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079276 CN2729747Y (en) | 2004-09-08 | 2004-09-08 | Protecting ring for aerial self-supporting optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079276 CN2729747Y (en) | 2004-09-08 | 2004-09-08 | Protecting ring for aerial self-supporting optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729747Y true CN2729747Y (en) | 2005-09-28 |
Family
ID=35048521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420079276 Expired - Lifetime CN2729747Y (en) | 2004-09-08 | 2004-09-08 | Protecting ring for aerial self-supporting optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2729747Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318873C (en) * | 2004-09-08 | 2007-05-30 | 黄正欧 | Protection ring of aerial self-supporting optical cable |
| CN113058771A (en) * | 2021-03-31 | 2021-07-02 | 中国航发常州兰翔机械有限责任公司 | Tool for repairing flow channel of axial flow casing of aircraft engine and using method of tool |
-
2004
- 2004-09-08 CN CN 200420079276 patent/CN2729747Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318873C (en) * | 2004-09-08 | 2007-05-30 | 黄正欧 | Protection ring of aerial self-supporting optical cable |
| CN113058771A (en) * | 2021-03-31 | 2021-07-02 | 中国航发常州兰翔机械有限责任公司 | Tool for repairing flow channel of axial flow casing of aircraft engine and using method of tool |
| CN113058771B (en) * | 2021-03-31 | 2023-06-20 | 中国航发常州兰翔机械有限责任公司 | Tool for repairing flow passage of axial-flow casing of aero-engine and application method of tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040908 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |