CN203909358U - Fiber core protective sleeve used at fracture of metal pipe in electric power circuit OPGW optical fiber - Google Patents
Fiber core protective sleeve used at fracture of metal pipe in electric power circuit OPGW optical fiber Download PDFInfo
- Publication number
- CN203909358U CN203909358U CN201420249039.2U CN201420249039U CN203909358U CN 203909358 U CN203909358 U CN 203909358U CN 201420249039 U CN201420249039 U CN 201420249039U CN 203909358 U CN203909358 U CN 203909358U
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- CN
- China
- Prior art keywords
- metal tube
- protective sleeve
- internal protective
- power circuit
- protective cover
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- 230000001681 protective effect Effects 0.000 title claims abstract description 77
- 239000002184 metal Substances 0.000 title claims abstract description 57
- 239000013307 optical fiber Substances 0.000 title claims abstract description 24
- 239000000835 fiber Substances 0.000 title claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 20
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims description 23
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003292 glue Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Abstract
The utility model discloses a fiber core protective sleeve used at a fracture of a metal pipe in an electric power circuit OPGW optical fiber. The protective sleeve comprises an internal protective sleeve and an external heat-shrinkable sleeve; an optical fiber passes through the interior of the internal protective sleeve; the internal protective sleeve stretches to a set length in the metal pipe; the internal protective sleeve is fixedly connected with the inner wall of the metal pipe via the external heat-shrinkable sleeves on the periphery of the internal protective sleeve; the internal protective sleeve is divided into a protective layer, a thermal insulating layer and a glass layer from inside to outside; the set length is 400-500 mm; the length of the internal protective sleeve is 800-1000mm; the thickness of the internal protective sleeve is 9-12mm; the thickness of the external heat-shrinkable sleeve is 4-5mm; and the protective layer is solidified flexible glue. The protective sleeve is advantageous in that the optical fiber can be well prevented from touching and rubbing the fracture of the metal pipe; and the external heat-shrinkable sleeve fastens the internal protective sleeve, so protection effects are greatly improved, and damage to the optical fiber caused by the fracture of the metal pipe is avoided.
Description
Technical field
The utility model relates to the fibre core protective casing that in a kind of power circuit OPGW optical cable, metal tube incision position is used.
Background technology
In OPGW optical cable, fibre core is generally to be protected by the metal tube of an overcoat.Therefore in the process of peeling off fibre core, need to be to metal tube band girdle.Band girdle can make metal tube fracture produce burr, for pipe inner fiber, has just formed a sharp metal edge.In the time that optical fiber and metal tube fracture are touched friction, can cause the damage of optical fiber.
As shown in Figure 1, the existing technology of generally using is at metal tube overcoat one segment protect pipe, to strengthen the radius-of-curvature of optical fiber at metal tube incision position, thereby alleviates the touching friction of optical fiber and fracture.But still there is the touching friction of optical fiber and fracture in the method.
In signals transmission, anti-external disturbance performance and the signal fidelity of the cable of prior art are poor, easily cause distorted signals, and therefore signal transmission is very unstable, and the image of transmission is also very unintelligible.And existing optical cable humidity resistance is not fine, easily oxidized.
Utility model content
The purpose of this utility model is exactly in order to address the above problem; the fibre core protective casing that in a kind of power circuit OPGW optical cable, metal tube incision position is used is provided; it has the touching friction that can thoroughly prevent optical fiber and metal tube fracture; and use outer heat-shrinkable T bush by fastening internal protective cover pipe; greatly improve protection effect, avoided the advantage of the damage of metal tube fracture to optical fiber.
To achieve these goals, the utility model adopts following technical scheme:
The fibre core protective casing that in a kind of power circuit OPGW optical cable, metal tube incision position is used; comprise internal protective cover pipe and outer heat-shrinkable T bush; described internal protective cover pipe is inner through optical fiber; described internal protective cover pipe gos deep into metal tube inner setting length; described internal protective cover pipe and inner wall of metal tube are connected and fixed by the outer heat-shrinkable T bush of internal protective cover pipe periphery; described internal protective cover pipe is divided into three layers, is screen layer, braid and protective layer from inside to outside successively.
Described screen layer is compound copper-plastics band screen layer.
Described protective layer is aluminium-plastic tape protective layer.
Described braid is proof copper-wire braided layer.
The preseting length that described internal protective cover pipe gos deep into metal tube inside is 400-500mm.
The length of described internal protective cover pipe is 800-1000mm.
The thickness of described internal protective cover pipe is 9-12mm.
The thickness of described outer heat-shrinkable T bush is 4-5mm.
Built-in some reinforcement steel cores between the protective layer of described internal protective cover pipe and braid.
The using method of the fibre core protective casing that in a kind of power circuit OPGW optical cable, metal tube incision position is used:
(1) inserting of internal protective cover pipe
After the strip off of OPGW optical cable, protection metal pipe is carried out to band girdle.Because metal tube rigidity is strong, for preventing that fibre core is cut off, generally adopt special cutter to carry out the ring cutting of certain depth in the appropriate location of metal tube, but thoroughly do not cut, then metal tube end is fractureed, at this moment metal tube fracture can be more sharp-pointed.After optical fiber exposes, optical fiber is passed to internal protective cover pipe, and appropriate length in metal tube is inserted in protective casing one end.
(2) outer heat-shrinkable T bush is fastening
Optical fiber is passed together with internal protective cover pipe to heat-shrinkable T bush, and the heat-shrinkable T bush that slides, intermediate position is overlapped with metal tube fracture.Use thermal contraction machine to heat it is tightened up heat-shrinkable T bush, ensure internal protective cover Guan Buhui slippage.
Cause the impaired problem of optical fiber for fibre core and the touching of its protection metal pipe fracture in solution OPGW optical cable rub, the key technical problem that the utility model need to solve has:
(1) select suitable internal protective cover pipe.Material hardness is moderate, Heat stability is good, and caliber is moderate, inserts in metal tube and is difficult for getting loose.
(2) select suitable outer heat-shrinkable T bush.Caliber is moderate, and fastening performance is good, and distortion is with the passing of time difficult for getting loose.
(3) internal protective cover pipe, in the time inserting, is determined and is inserted length in conjunction with actual conditions; When outer heat-shrinkable T bush heating, avoid internal protective casing to damage.
The beneficial effects of the utility model:
1 protective casing can thoroughly prevent the touching friction of optical fiber and metal tube fracture, and uses outer heat-shrinkable T bush by fastening internal protective cover pipe, has greatly improved protection effect, has avoided the damage of metal tube fracture to optical fiber.
2 the utility model are at one section of suitable protective casing of radius of metal tube inner sleeve, the burr of metal fracture is isolated in outside protective casing, thereby has thoroughly prevented the touching friction of optical fiber and fracture; Meanwhile, at one section of heat-shrinkable T bush of joint overcoat of metal tube and internal protective cover pipe, effectively prevent that internal protective cover pipe from coming off from the free of metal tube incision position, improved protection effect.
3, compound copper-plastics band has good shielding, and interference free performance is very strong, the braid that adds outside, has formed a set of composite shielding layer, thereby, greatly strengthened the interference free performance of the utility model optical cable, signal transmission is more stable, and the image of transmission is also more clear; Braid has increased aluminium-plastic tape protective layer outward; the shielding properties of optical cable can not only be further improved, inner composite shielding layer can also be protected, thereby; greatly reduce the possibility of the moisture absorption of the utility model composite shielding layer, oxidation, ensured long-term, the efficient shield effectiveness of optical cable.
Brief description of the drawings
Fig. 1 is existing OPGW optical cable fibre core protective casing;
Fig. 2 is OPGW optical cable fibre core protective casing of the present utility model.
Wherein, 1, optical fiber, 2, outside protective case, 3, metal tube fracture, 4, metal tube, 5, internal protective cover pipe, 6, outer heat-shrinkable T bush.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1, prior art:
At the periphery of the metal tube 4 at metal tube fracture 3 places socket outside protective case 2, in described outside protective case 2 through optical fiber 1.
As shown in Figure 2; the fibre core protective casing that in a kind of power circuit OPGW optical cable, metal tube incision position is used; comprise internal protective cover pipe 5 and outer heat-shrinkable T bush 6; described internal protective cover pipe 5 is inner through optical fiber 1; described internal protective cover pipe 5 gos deep into metal tube 4 inner setting length; described internal protective cover pipe 5 is connected and fixed by the outer heat-shrinkable T bush 6 of internal protective cover pipe 5 peripheries with metal tube 4 inwalls, and described internal protective cover pipe 5 is divided into three layers, is screen layer, braid and protective layer from inside to outside successively.
Described screen layer is compound copper-plastics band screen layer.
Described protective layer is aluminium-plastic tape protective layer.
Described braid is proof copper-wire braided layer.
The preseting length that described internal protective cover pipe 5 gos deep into metal tube 4 inside is 400-500mm.
The length of described internal protective cover pipe 5 is 800-1000mm.
The thickness of described internal protective cover pipe 5 is 9-12mm.
The thickness of described outer heat-shrinkable T bush 6 is 4-5mm.
Described protective seam is for solidifying flexible glue.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection domain of the present utility model.
Claims (8)
1. the fibre core protective casing that in a power circuit OPGW optical cable, metal tube incision position is used; it is characterized in that; comprise internal protective cover pipe and outer heat-shrinkable T bush; described internal protective cover pipe is inner through optical fiber; described internal protective cover pipe gos deep into metal tube inner setting length; described internal protective cover pipe and inner wall of metal tube are connected and fixed by the outer heat-shrinkable T bush of internal protective cover pipe periphery, and described internal protective cover pipe is divided into three layers, are screen layer, braid and protective layer from inside to outside successively.
2. the fibre core protective casing that in a kind of power circuit OPGW optical cable as claimed in claim 1, metal tube incision position is used, is characterized in that, described screen layer is compound copper-plastics band screen layer.
3. the fibre core protective casing that in a kind of power circuit OPGW optical cable as claimed in claim 1, metal tube incision position is used, is characterized in that, described protective layer is aluminium-plastic tape protective layer.
4. the fibre core protective casing that in a kind of power circuit OPGW optical cable as claimed in claim 1, metal tube incision position is used, is characterized in that, the preseting length that described internal protective cover pipe gos deep into metal tube inside is 400-500mm.
5. the fibre core protective casing that in a kind of power circuit OPGW optical cable as claimed in claim 1, metal tube incision position is used, is characterized in that, the length of described internal protective cover pipe is 800-1000mm.
6. the fibre core protective casing that in a kind of power circuit OPGW optical cable as claimed in claim 1, metal tube incision position is used, is characterized in that, the thickness of described internal protective cover pipe is 9-12mm.
7. the fibre core protective casing that in a kind of power circuit OPGW optical cable as claimed in claim 1, metal tube incision position is used, is characterized in that, the thickness of described outer heat-shrinkable T bush is 4-5mm.
8. the fibre core protective casing that in a kind of power circuit OPGW optical cable as claimed in claim 1, metal tube incision position is used, is characterized in that, described braid is proof copper-wire braided layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249039.2U CN203909358U (en) | 2014-05-15 | 2014-05-15 | Fiber core protective sleeve used at fracture of metal pipe in electric power circuit OPGW optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249039.2U CN203909358U (en) | 2014-05-15 | 2014-05-15 | Fiber core protective sleeve used at fracture of metal pipe in electric power circuit OPGW optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909358U true CN203909358U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420249039.2U Active CN203909358U (en) | 2014-05-15 | 2014-05-15 | Fiber core protective sleeve used at fracture of metal pipe in electric power circuit OPGW optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203909358U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891982A (en) * | 2016-06-16 | 2016-08-24 | 国家电网公司 | Installation device and method for OPGW terminal reservation cable of transformer substation |
| CN105911663A (en) * | 2016-06-16 | 2016-08-31 | 国家电网公司 | Transformer substation OPGW terminal reserved cable and manufacturing method thereof |
| CN108780200A (en) * | 2016-03-18 | 2018-11-09 | 康普技术有限责任公司 | Fiber optic cables are fanned out to pipeline configuration, component and method |
| US11543613B2 (en) | 2014-10-27 | 2023-01-03 | Commscope Technologies Llc | Fiber optic cable with flexible conduit |
| US11579394B2 (en) | 2016-10-13 | 2023-02-14 | Commscope Technologies Llc | Fiber optic breakout transition assembly incorporating epoxy plug and cable strain relief |
-
2014
- 2014-05-15 CN CN201420249039.2U patent/CN203909358U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11543613B2 (en) | 2014-10-27 | 2023-01-03 | Commscope Technologies Llc | Fiber optic cable with flexible conduit |
| CN108780200A (en) * | 2016-03-18 | 2018-11-09 | 康普技术有限责任公司 | Fiber optic cables are fanned out to pipeline configuration, component and method |
| CN108780200B (en) * | 2016-03-18 | 2021-05-07 | 康普技术有限责任公司 | Fiber optic cable fanout duct structures, components and methods |
| CN105891982A (en) * | 2016-06-16 | 2016-08-24 | 国家电网公司 | Installation device and method for OPGW terminal reservation cable of transformer substation |
| CN105911663A (en) * | 2016-06-16 | 2016-08-31 | 国家电网公司 | Transformer substation OPGW terminal reserved cable and manufacturing method thereof |
| CN105891982B (en) * | 2016-06-16 | 2022-03-11 | 国家电网公司 | Installation device and method for OPGW terminal reserved cable of transformer substation |
| US11579394B2 (en) | 2016-10-13 | 2023-02-14 | Commscope Technologies Llc | Fiber optic breakout transition assembly incorporating epoxy plug and cable strain relief |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |