CN219657914U - OPGW layer stranded optical cable with waterproof and lightning-proof functions - Google Patents
OPGW layer stranded optical cable with waterproof and lightning-proof functions Download PDFInfo
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- CN219657914U CN219657914U CN202320166841.4U CN202320166841U CN219657914U CN 219657914 U CN219657914 U CN 219657914U CN 202320166841 U CN202320166841 U CN 202320166841U CN 219657914 U CN219657914 U CN 219657914U
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- Prior art keywords
- clad steel
- steel wires
- aluminum
- optical cable
- optical fiber
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- 230000003287 optical effect Effects 0.000 title claims abstract description 38
- 239000013307 optical fiber Substances 0.000 claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 230000007797 corrosion Effects 0.000 claims abstract description 25
- 238000005260 corrosion Methods 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 229920001721 polyimide Polymers 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims description 18
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 13
- 238000005524 ceramic coating Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000002114 nanocomposite Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
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- Communication Cables (AREA)
Abstract
The utility model discloses a waterproof and lightning-proof OPGW layer stranded optical cable, which comprises a central reinforcing piece, a plurality of optical fiber units, a plurality of inner aluminum-clad steel wires, a plurality of outer aluminum-clad steel wires, a heat insulation sleeve, a polyimide film, a corrosion-resistant layer and an outer sheath, wherein the central reinforcing piece is arranged on the central reinforcing piece; the optical cable has stronger tensile property by arranging a plurality of optical fiber units and a plurality of inner aluminum-clad steel wires which are uniformly wound around the periphery of the central reinforcing piece and a plurality of outer aluminum-clad steel wires which are uniformly wound around the periphery of the optical fiber units and the inner aluminum-clad steel wires and adopting a double-layer aluminum-clad steel wire stranded structure; the heat insulation sleeve and the polyimide film are matched, so that the heat insulation performance and the heat resistance of the optical cable are enhanced, and the optical fiber can be prevented from being damaged by instantaneous temperature burning caused by lightning strike of the optical cable; water-blocking cable paste is filled between the heat insulation sleeve and the plurality of outer aluminum-clad steel wires, so that high-efficiency water prevention can be realized; the corrosion-resistant layer is arranged, so that the corrosion resistance is enhanced, the service life is prolonged, the signal transmission quality is ensured, and the existing requirements are met.
Description
Technical Field
The utility model relates to the technical field of optical cables, in particular to an OPGW layer stranded optical cable with waterproof and lightning-proof functions.
Background
Optical fibers use the difference in refractive index between the core and cladding materials to transmit optical energy in the optical fiber, which has become a major revolution in communication history. The optical fiber cable has light weight and small volume, and is adopted by a power system to transmit information such as dispatching telephone, telecontrol signals, relay protection, television images and the like between a transformer substation and a central dispatching station. In order to improve the stability and reliability of the optical fiber cable, a structure in which the optical cable, the phase conductors of the power transmission line, the overhead ground wire and the power cable are combined into a whole has been developed abroad.
OPGW fiber optic cable (Optical Fiber Composite Overhead Ground Wire), also known as fiber optic composite overhead ground wire. The optical fiber is placed in the ground wire of the overhead high-voltage transmission line to form an optical fiber communication network on the transmission line, and the structure has the dual functions of the ground wire and communication, and is commonly called OPGW optical cable. The OPGW optical cable is more reliable, stable and firm due to the wrapping of the metal wires, and compared with the optical cable adopting other modes, the overhead ground wire and the optical cable are combined into a whole, so that the construction period is shortened, and the construction cost is saved.
The OPGW layer-twisted optical cable is one of the main structural forms of the current OPGW optical cable, generally, a plurality of optical fiber units and a plurality of aluminum-clad steel wires are twisted on the periphery of a central reinforcing member, and a protective sleeve is coated on the periphery; moreover, the lightning protection device is not corrosion-resistant, easy to age, short in service life and inconvenient for users, and when the lightning protection device encounters thunderstorm weather, the lightning protection device is possibly hit by lightning to cause damage, so that the current requirements cannot be met. Accordingly, there is a need for improvements in current OPGW layer twisted fiber optic cables.
Disclosure of Invention
In view of the above, the present utility model aims at overcoming the disadvantages of the prior art, and the main object of the present utility model is to provide a waterproof and lightning-proof OPGW layer twisted optical cable, which can effectively solve the problems of poor waterproof performance, poor tensile performance, insufficient strength, poor signal transmission quality, corrosion resistance, easy aging, and easy damage caused by lightning hit in thunderstorm weather of the existing OPGW layer twisted optical cable.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the OPGW layer twisted optical cable comprises a central reinforcement, a plurality of optical fiber units, a plurality of inner aluminum clad steel wires, a plurality of outer aluminum clad steel wires, a heat insulation sleeve, a polyimide film, a corrosion-resistant layer and an outer sheath; the optical fiber units and the inner aluminum-clad steel wires are uniformly wound and twisted on the periphery of the central reinforcing piece, each optical fiber unit comprises a stainless steel tube and a plurality of optical fibers, the stainless steel tube is filled with fiber paste, and the optical fibers are arranged in the stainless steel tube and embedded in the fiber paste; the plurality of outer aluminum-clad steel wires are uniformly wound around the plurality of optical fiber units and the plurality of inner aluminum-clad steel wires; the heat insulation sleeve is coated outside the plurality of outer aluminum-clad steel wires, and water-blocking cable paste is filled between the heat insulation sleeve and the plurality of outer aluminum-clad steel wires; the polyimide film is coated outside the heat insulation sleeve; the corrosion-resistant layer is coated outside the polyimide film; the outer sheath is coated outside the corrosion-resistant layer.
As a preferable scheme, the number of the optical fiber units is two, the two optical fiber units are symmetrically arranged about the central reinforcing member, the number of the inner aluminum-clad steel wires is four, and the four inner aluminum-clad steel wires and the two optical fiber units are uniformly wound on the periphery of the central reinforcing member.
As a preferable scheme, the stainless steel pipe is a 304 stainless steel pipe formed by continuous welding with laser.
As a preferable scheme, the fiber paste is hydrogen-absorbing type water-blocking fiber paste.
Preferably, the heat insulation sleeve is made of glass fiber.
As a preferred scheme, the corrosion-resistant layer comprises a nanocomposite ceramic coating, a graphene nano ceramic coating and a polytetrafluoroethylene coating.
As a preferable scheme, the outer sheath is made of PA, PE or LSZH materials.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:
the optical cable has stronger tensile property by arranging the optical fiber units and the inner aluminum-clad steel wires to be uniformly wound around the central reinforcing piece, and the outer aluminum-clad steel wires to be uniformly wound around the optical fiber units and the inner aluminum-clad steel wires, and adopting a double-layer aluminum-clad steel wire stranded structure, so that the strength of the optical cable is greatly increased; the heat insulation sleeve and the polyimide film are matched, so that the heat insulation performance and the heat resistance of the optical cable are enhanced, combustion can be effectively prevented, and the optical fiber can be prevented from being damaged by instantaneous temperature burning caused by lightning strike of the optical cable; the waterproof cable paste is filled between the heat insulation sleeve and the plurality of outer aluminum-clad steel wires, so that high-efficiency waterproof can be realized, and the waterproof performance of the product is greatly improved; the corrosion-resistant layer is arranged, corrosion resistance is enhanced, ageing is not easy to occur, the service life is prolonged, the signal transmission quality is guaranteed, the user experience is improved, and the existing requirements are met.
In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a cross-sectional view of a preferred embodiment of the present utility model.
The attached drawings are used for identifying and describing:
10. center strength member 20 and optical fiber unit
21. Stainless steel tube 22, optical fiber
23. Fiber paste 30 and inner aluminum-clad steel wire
40. Outer aluminum-clad steel wire 50 and heat insulation sleeve
60. Polyimide film 70, corrosion resistant layer
80. Outer jacket 90, water-blocking cable paste.
Detailed Description
Referring to FIG. 1, a preferred embodiment of the present utility model is shown, which comprises a central reinforcing member 10, a plurality of optical fiber units 20, a plurality of inner aluminum-clad steel wires 30, a plurality of outer aluminum-clad steel wires 40, a heat insulating jacket 50, a polyimide film 60, a corrosion-resistant layer 70 and an outer jacket 80.
The optical fiber units 20 and the inner aluminum clad steel wires 30 are uniformly wound around the periphery of the central reinforcement 10, each optical fiber unit 20 comprises a stainless steel tube 21 and a plurality of optical fibers 22, the stainless steel tube 21 is filled with fiber paste 23, the optical fibers 22 are arranged in the stainless steel tube 21 and embedded in the fiber paste 23, the optical fibers 22 are prefabricated for a residual length and are secondarily wound in the twisting process, and when an optical cable is subjected to external force, the optical fibers 22 are not stressed and have good environmental temperature performance; in this embodiment, the number of the optical fiber units 20 is two, the two optical fiber units 20 are symmetrically arranged about the central reinforcement 10, the number of the inner aluminum clad steel wires 30 is four, and the four inner aluminum clad steel wires 30 and the two optical fiber units 20 are uniformly wound around the periphery of the central reinforcement 10; the stainless steel tube 21 is a 304 stainless steel tube formed by adopting laser continuous welding, so that the strength of the optical cable can be increased; the fiber paste 23 is a hydrogen-absorbing type water-blocking fiber paste, the fiber paste 23 can generate trace hydrogen, the hydrogen is a substance with the smallest molecule, along with the increase of concentration, hydrogen atoms are easy to permeate into the optical fiber 22 and combine with oxygen bonds in silicon dioxide of the optical fiber 22 to form hydrogen loss, so that the signal of the optical fiber 22 is attenuated, and the hydrogen-absorbing type water-blocking fiber paste is a high-quality hydrogen-absorbing water-blocking material, and can ensure good water-blocking performance and hydrogen loss resistance.
The plurality of outer aluminum clad steel wires 40 are uniformly wound around the plurality of optical fiber units 20 and the plurality of inner aluminum clad steel wires 30, and the structure of the plurality of outer aluminum clad steel wires 40 is adopted, so that the optical cable has better mechanical property, stronger corrosion resistance, excellent electrical property and lightning resistance.
The heat insulation sleeve 50 is coated outside the plurality of outer aluminum-clad steel wires 40, and water-blocking cable paste 90 is filled between the heat insulation sleeve 50 and the plurality of outer aluminum-clad steel wires 40, so that the water-proof performance of the product can be enhanced; in this embodiment, the heat insulating sleeve 50 is made of glass fiber, and has heat insulating effect, good insulating performance, heat resistance and corrosion resistance.
The polyimide film 60 is coated outside the heat insulation sleeve 50, the polyimide film 60 has stable chemical property and good heat resistance, can effectively prevent combustion, and can prevent the optical fiber 22 from being damaged by instantaneous temperature burning caused by lightning strike of the optical cable.
The corrosion-resistant layer 70 is coated outside the polyimide film 60; in this embodiment, the corrosion resistant layer 70 includes a nanocomposite ceramic coating, a graphene nanoceramic coating, and a polytetrafluoroethylene coating.
The outer sheath 80 is coated outside the corrosion resistant layer 70; in this embodiment, the outer sheath 80 is made of PA, PE or LSZH, and the outer sheath 80 has the characteristics of weak acid resistance, weak base resistance, salt corrosion resistance, high cold resistance and high temperature resistance.
The product is mainly applied to the electric ultrahigh voltage and extra-high voltage overhead line.
The design focus of the utility model is that: the optical cable has stronger tensile property by arranging the optical fiber units and the inner aluminum-clad steel wires to be uniformly wound around the central reinforcing piece, and the outer aluminum-clad steel wires to be uniformly wound around the optical fiber units and the inner aluminum-clad steel wires, and adopting a double-layer aluminum-clad steel wire stranded structure, so that the strength of the optical cable is greatly increased; the heat insulation sleeve and the polyimide film are matched, so that the heat insulation performance and the heat resistance of the optical cable are enhanced, combustion can be effectively prevented, and the optical fiber can be prevented from being damaged by instantaneous temperature burning caused by lightning strike of the optical cable; the waterproof cable paste is filled between the heat insulation sleeve and the plurality of outer aluminum-clad steel wires, so that high-efficiency waterproof can be realized, and the waterproof performance of the product is greatly improved; the corrosion-resistant layer is arranged, corrosion resistance is enhanced, ageing is not easy to occur, the service life is prolonged, the signal transmission quality is guaranteed, the user experience is improved, and the existing requirements are met.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.
Claims (7)
1. An OPGW layer stranded optical cable of waterproof lightning protection, its characterized in that: comprises a central reinforcement, a plurality of optical fiber units, a plurality of inner aluminum-clad steel wires, a plurality of outer aluminum-clad steel wires, a heat insulation sleeve, a polyimide film, a corrosion-resistant layer and an outer sheath; the optical fiber units and the inner aluminum-clad steel wires are uniformly wound and twisted on the periphery of the central reinforcing piece, each optical fiber unit comprises a stainless steel tube and a plurality of optical fibers, the stainless steel tube is filled with fiber paste, and the optical fibers are arranged in the stainless steel tube and embedded in the fiber paste; the plurality of outer aluminum-clad steel wires are uniformly wound around the plurality of optical fiber units and the plurality of inner aluminum-clad steel wires; the heat insulation sleeve is coated outside the plurality of outer aluminum-clad steel wires, and water-blocking cable paste is filled between the heat insulation sleeve and the plurality of outer aluminum-clad steel wires; the polyimide film is coated outside the heat insulation sleeve; the corrosion-resistant layer is coated outside the polyimide film; the outer sheath is coated outside the corrosion-resistant layer.
2. The waterproof and lightning-proof OPGW layer twisted type optical cable of claim 1, wherein: the optical fiber units are symmetrically arranged about the central reinforcing member, the number of the inner aluminum-clad steel wires is four, and the four inner aluminum-clad steel wires and the two optical fiber units are uniformly wound and twisted on the periphery of the central reinforcing member.
3. The waterproof and lightning-proof OPGW layer twisted type optical cable of claim 1, wherein: the stainless steel tube is a 304 stainless steel tube formed by adopting laser continuous welding.
4. The waterproof and lightning-proof OPGW layer twisted type optical cable of claim 1, wherein: the fiber paste is hydrogen-absorbing type water-blocking fiber paste.
5. The waterproof and lightning-proof OPGW layer twisted type optical cable of claim 1, wherein: the heat insulation sleeve is made of glass fiber materials.
6. The waterproof and lightning-proof OPGW layer twisted type optical cable of claim 1, wherein: the corrosion-resistant layer comprises a nano composite ceramic coating, a graphene nano ceramic coating and a polytetrafluoroethylene coating.
7. The waterproof and lightning-proof OPGW layer twisted type optical cable of claim 1, wherein: the outer sheath is made of PA, PE or LSZH materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320166841.4U CN219657914U (en) | 2023-02-06 | 2023-02-06 | OPGW layer stranded optical cable with waterproof and lightning-proof functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320166841.4U CN219657914U (en) | 2023-02-06 | 2023-02-06 | OPGW layer stranded optical cable with waterproof and lightning-proof functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219657914U true CN219657914U (en) | 2023-09-08 |
Family
ID=87860895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320166841.4U Active CN219657914U (en) | 2023-02-06 | 2023-02-06 | OPGW layer stranded optical cable with waterproof and lightning-proof functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219657914U (en) |
-
2023
- 2023-02-06 CN CN202320166841.4U patent/CN219657914U/en active Active
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