CN215813485U - Be applied to automatic middle device that continues of all insulation type OPPC of distribution network - Google Patents
Be applied to automatic middle device that continues of all insulation type OPPC of distribution network Download PDFInfo
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- CN215813485U CN215813485U CN202122230275.2U CN202122230275U CN215813485U CN 215813485 U CN215813485 U CN 215813485U CN 202122230275 U CN202122230275 U CN 202122230275U CN 215813485 U CN215813485 U CN 215813485U
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Abstract
The utility model relates to the technical field of high-voltage line connection of an electric power system, in particular to a fully-insulated OPPC intermediate connection device applied to distribution network automation. Be applied to automatic middle connecting device of full insulation type OPPC of distribution network, including installation casing and with installation casing assorted insulating housing lid, it melts dish and optic fibre adapter to have set gradually in the installation casing, installation casing outer wall has seted up in proper order into fine mouthful, play fine mouthful and dilatation mouth. The utility model has the beneficial effects that: the all-insulated OPPC intermediate connection device applied to distribution network automation can realize photoelectric separation and optical fiber connection in a high-voltage scene, on one hand, a shunt conduction path is blocked, on the other hand, charges cannot be accumulated on the surface of the insulated OPPC intermediate connection box device, the communication operation safety of a power grid is ensured, and meanwhile, the all-insulated OPPC intermediate connection device also has an optical communication expanded transmission function.
Description
Technical Field
The utility model relates to the technical field of high-voltage line connection of an electric power system, in particular to a fully-insulated OPPC intermediate connection device applied to distribution network automation.
Background
An optical fiber composite overhead phase conductor (OPPC) integrates the functions of power transmission and communication, replaces one of three phases of an insulated overhead cable in a power distribution network, and forms a three-phase power system formed by combining 2 conductors and 1 OPPC. Currently, two modes of OPGW and ADSS optical cables are mainly adopted for power optical fiber communication transmission. In the urban and rural distribution network system with 10KV and 35KV lines, most lines have no overhead ground wires, and some lines are not suitable for ADSS optical cables due to capital or tower re-erection, so that great difficulty is brought to the optical fiber creation of the urban and rural distribution network. The optical phase conductor (OPPC) well solves the problems of the waste of repeated erection fund and the risk of hanging up the road traffic due to the low influence of the ADSS optical cable erection.
The mostly adoption of splice box in the middle of the OPPC optical cable that uses on the high-tension line at present is metal casing, and the limited discharge distance in splice box space is little with creepage distance in the middle of the operation of circuit, and the function is single relatively, and secondly electric power wire jumper and splice box casing are all at reposition conduction OPPC electric energy, and the splice box casing is electrified all the time, waits the point and puts difficult realization. In addition, the traditional optical cable in the intermediate joint box only has a direct fusion butt joint mode, so that the communication services such as capacity expansion, corresponding expansion, emergency and the like cannot be realized, and the application range is narrow.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides a fully insulated OPPC intermediate connection device applied to distribution network automation to solve the problem that the OPPC optical cable connection only has a direct fusion butt joint mode and cannot realize the communication services such as capacity expansion, corresponding expansion, emergency and the like.
The technical scheme for solving the technical problems is as follows: a full-insulation OPPC intermediate connection device applied to distribution network automation comprises an installation shell and an insulation shell cover matched with the installation shell, wherein a direct melting disc and an optical fiber adapter are sequentially arranged in the installation shell, and a fiber inlet, a fiber outlet and an expansion port are sequentially formed in the outer wall of the installation shell; the fiber inlet and the fiber outlet of the mounting shell are both provided with a wire fixing component; the dilatation mouth is located and installs under the casing, and dilatation mouth department is provided with supporting component.
On the basis of the technical scheme, the utility model can be further improved as follows:
further, the wire fixing component comprises a wire guide post; one end of the wire guide column is connected with the mounting shell, and the other end of the wire guide column is provided with a cable fixing seat.
Furthermore, a cable fixing supporting insulator is arranged outside the lead post.
Furthermore, a silica gel insulating sleeve is arranged outside the cable fixing seat.
Further, the support assembly includes a support post; one end of the supporting column is connected with the mounting shell, and the other end of the supporting column is provided with a mounting plate.
Furthermore, still be provided with one end in the installation casing and link to each other with the fiber adapter terminal, the other end runs through the support column and extends to the MPO optic fibre multicore switching jumper wire on the mounting panel.
Further, a post insulator is arranged outside the support post.
Furthermore, the middle part of mounting panel has seted up the wiring mouth, a plurality of assembly openings that are used for fixed mounting panel are still seted up to the face of mounting panel.
Further, the mounting shell and the insulating shell cover are both made of SMC insulating materials.
The utility model has the beneficial effects that: the all-insulated OPPC intermediate connection device applied to distribution network automation can realize photoelectric separation and optical fiber connection in a high-voltage scene, on one hand, a shunt conduction path is blocked, on the other hand, charges cannot be accumulated on the surface of the insulated OPPC intermediate connection box device, no external condition of arc discharge exists, the optical fiber separation process specification is met, the power grid communication operation safety is ensured, and meanwhile, the all-insulated OPPC intermediate connection device also has an optical communication expansion transmission function.
Drawings
FIG. 1 is a schematic internal cross-sectional view of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic structural diagram according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the cable fixing device comprises a mounting shell, 2, an insulating shell cover, 3, a direct melting disc, 31, a support, 4, a fiber adapter, 5, a cable fixing component, 51, a wire guide column, 52, a cable fixing seat, 53, a cable fixing supporting insulator, 54, a silica gel insulating sleeve, 6, a supporting component, 61, a supporting column, 62, a mounting plate, 62a, a wiring port, 62b, an assembling port, 63, a supporting column insulator, 7, MPO fiber multi-core switching jumper, 8, a splice box mounting support, 9, a parallel groove clamp, 10, an electric power jumper, 11, a frame rod, 12 and an external information box.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
It should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are intended to be construed broadly, as if they were connected either fixedly or removably, or as integrally formed structures. To those of ordinary skill in the art, the specific meaning of such terms in this patent may be understood as appropriate.
Along with the development of urban and rural distribution network constantly promotes the optical fiber communication demand, in order to accelerate smart power grids and ubiquitous electric power thing networking construction pace, establish further implementation of falling to the ground of urban and rural distribution network OPPC, reduce the frequency of power communication trouble and maintenance, guarantee power communication operation safety. The interconnection and intercommunication intelligent control technology is fully applied, and a good platform with the functions of interconnection of everything and man-machine interaction is better constructed in all links of the power system.
The photoelectric separation and the optical fiber splicing under the high-voltage scene are met, and the key point is that the conductive electric energy phase cable cannot cause harmful influence on the optical fiber for transmitting optical signals on creepage distance insulation treatment. In addition to shunting a part of current by the short-circuit phase cable, the metal type middle splice closure device in a high-voltage electromagnetic environment also bears a part of current, the current which is not uniform in resistivity between the shunted phase cable and the metal shell also has large or small value, a large amount of charges are accumulated on the surface of the metal shell, the external condition of arc discharge is existed, and the optical cable is easy to generate arc discharge between an optical fiber composite overhead phase (OPPC) stainless steel protective tube and the metal splice closure shell to blow the optical cable due to various reasons such as non-standard operation of an optical fiber separation process and the like. The utility model provides a fully insulated OPPC intermediate connection device applied to distribution network automation to solve the technical problem.
As shown in fig. 1 and 2, the fully insulated OPPC intermediate connection device applied to distribution automation according to the present invention includes a mounting housing 1 and an insulating housing cover 2 matching with the mounting housing 1, wherein four direct fusion trays 3 and optical fiber adapters 4 are sequentially disposed in the mounting housing 1, and the four direct fusion trays 3 are stacked and fixed by a bracket 31 in the mounting housing 1. The outer wall of the mounting shell 1 is sequentially provided with a fiber inlet, a fiber outlet and an expansion port; the fiber inlet and the fiber outlet of the installation shell 1 are provided with the fixing line assembly 5, and the optical cable passing in and out of the installation shell 1 is not prone to deviation through the fixing line assembly 5, so that the optical fiber can be stably welded in the installation shell 1. Dilatation mouth is located installation casing 1 under, and dilatation mouth department is provided with supporting component 6, and supporting component 6 is used for fixing whole installation casing 1, and the accessible dilatation mouth jumps fine to outside equipment simultaneously.
The installation shell 1 and the insulation shell cover 2 are both made of SMC insulation materials, the SMC insulation materials are subjected to die sinking, heating and extrusion, the optimized design of the shell structure is matched, and the SMC insulation material finished product has the characteristics of good mechanical performance, ultraviolet resistance, ageing resistance, long service life, good surface gloss, water resistance, oil resistance, corrosion resistance, excellent electrical insulation performance and light weight. The fully-insulated OPPC intermediate connection device applied to distribution network automation blocks a shunt conduction path on one hand, and charges cannot be accumulated on the surface of the insulated OPPC intermediate connection box device on the other hand, so that external conditions of arc discharge are avoided, the optical fiber separation process specification is met, and the communication operation safety of a power grid is ensured.
In this embodiment, the wire fixing assembly 5 includes a wire guide post 51; one end of the wire guide post 51 is connected to the mounting case 1, and the other end is provided with a cable fixing base 52. The outside of the conductor post 51 is also provided with a cable fixing supporting insulator 53, and the outside of the cable fixing seat 52 is provided with a silica gel insulating sleeve 54, so that the shunting path of the inlet end and the outlet end of the optical cable is cut off, and the anti-interference capability is better.
In addition, the support assembly 6 includes a support column 61; one end of the support column 61 is connected to the mounting case 1, and the other end is provided with a mounting plate 62. The installation shell 1 is also internally provided with an MPO fiber multi-core switching jumper 7, one end of the MPO fiber multi-core switching jumper is connected with a terminal of the fiber adapter 4, and the other end of the MPO fiber multi-core switching jumper passes through the support column 61 and extends to the installation plate 62. A post insulator 63 is also provided outside the support post 61. The middle part of mounting panel 62 has seted up wiring mouth 62a, and the face of mounting panel 62 still has seted up a plurality of assembly openings 62b that are used for fixed mounting panel 62.
It should be noted that small holes for feeding optical fibers and jumpers are reserved inside the wire guide posts 51 and the support posts 61.
The utility model designs a full-insulation OPPC intermediate connection device applied to distribution network automation, in the application process, the installation position of the connection device needs to be selected on a connection tower and a fixed platform is installed, the platform can be used as an operation platform for optical fiber connection at the same time, the distance between an optical cable and an insulator fixed point and the connection device along a tension-resistant hardware fitting and then along a tower framework needs to be determined in the connection process, the optical cable is ensured to have enough complete radius, enough optical fiber length for connection in a box is reserved, and the control is generally about 1.5 m. The excess cable is then cut off.
Then, after the optical cable penetrates through the end of the silica gel insulating sleeve 54, the silica gel insulating sleeve 54 is moved to a proper position which does not affect the subsequent operation, the OPPC optical cable is stripped, the steel pipe optical unit is separated, the sealing and pressing parts (a sealing and pressing nut, a silica gel plug and a plug tensioning ring) are respectively sleeved on the optical unit, a stainless steel pipe is cut off and stripped by a steel pipe cutter at a position 50mm away from the end surface of the outer side of the cable fixing supporting insulator, the factice on the surface of the optical fiber to be penetrated is wiped by an anhydrous alcohol cotton ball, a lining pipe and an optical fiber protecting conduit are respectively penetrated inside and outside the steel pipe, the optical fiber is fixed by a conventional thermal contraction pipe, the head end of the optical fiber exceeds the inner wall of the splice box by 100mm after thermal contraction, the tail end of the optical fiber penetrates into the mounting shell 1 from a small hole of the conductor column insulator 51 (eliminating the torsional internal stress of the OPPC optical cable), a proper amount of sealant is coated on the sealing and pressing parts assembled outside the cable fixing supporting, the end face of the stripped OPPC optical cable is close to the end face of the sealing gland nut and is screwed (the length of the optical fiber for splicing in the box is ensured to be about 1.5 m).
Subsequently, the OPPC cable is clamped and compressed on the cable holder 52 and it is confirmed that the OPPC cable cannot rotate (if the OPOC cable needs to be stripped of the insulating layer). And then, sequentially sleeving sealing and pressing parts (a sealing and pressing screw cap, a silica gel plug and a plug tensioning ring), properly tensioning the optical fiber entering the mounting shell 1, properly coating sealant on the sealing and pressing parts, screwing the sealing and pressing screw cap, and straightening and coiling the reserved optical fiber. The other side of the OPPC optical cable is introduced into the mounting shell 1 from the fiber outlet in the same way.
Finally, the mounting bracket 31, the direct melting disc 3 and the optical fiber adapter 4 are assembled and fixed according to the sealing operation requirement after the OPPC optical cables (direct melting and fiber jumping) on two sides are welded according to the standard requirement to determine that the splice point test is correct. The silicone insulating sleeve 54 is pulled back and sleeved into the front flange of the cable fixing base 52 (nylon weather-resistant cable ties can be used for binding). And at the proper position where the tension fitting fixes the optical cable, the OPPC at two ends of the connector box is bridged by an electric jumper with a parallel groove clamp, so that the communication of the wires is ensured. The purpose of the photoelectric separation is achieved in the two-part operation described above. By connecting the MPO optical fiber multi-core adapter plug with the preset length and matched with the socket on the MPO optical fiber multi-core adapter jumper 7, the related communication services of expansion or emergency disposal can be immediately completed, and the MPO optical fiber multi-core adapter plug has obvious advantages particularly in the communication services of metropolitan area networks and agricultural area networks.
The utility model also provides the following preferred embodiments
Example one
As shown in fig. 3, the present embodiment is an application of the fully insulated OPPC intermediate connection device for distribution automation in the field of high voltage lines. The splice closure mounting bracket 8 is mounted at a proper position on the framework iron tower, and is fixed with the mounting port 62b on the mounting plate 62 through a bolt to complete the primary assembly. An OPPC optical cable is led down from a framework iron tower and fixed at intervals through a plurality of insulator fixing pieces 8, the OPPC optical cable with a certain length is respectively intercepted by adopting a photoelectric separation technology and is connected into a full-insulation type OPPC intermediate connection device, an optical fiber can be spliced with a terminal of an optical fiber adapter 4 by adopting direct melting or a preset switching jumper, and the connection between the optical fiber adapter 4 and external equipment is established through an MPO optical fiber multi-core switching jumper 7. The number of the jumping fiber cores can meet the requirement of expanding service, and the jumping fiber cores can be used for matching optical cable splicing to transfer the optical communication service to a designated unit under the condition of not opening a cover.
After the circuit is connected, the external redundant OPPC optical cable of the fully-insulated OPPC intermediate connection device is coiled and stored, and the electric power jumper wire 10 is connected with the OPPC optical cable phase line by the parallel groove clamp 9 to complete the electric energy conduction function.
The fully-insulated OPPC intermediate connection device with network automation effectively avoids the hidden trouble of optical cable breakage caused by arc discharge generated between the stainless steel protective tube of the OPPC optical cable and the fully-insulated connection box shell, and improves the communication operation safety of the power grid. The MPO multi-core switching jumper 7 with the preset length can complete the optical communication expanded transmission function except for direct melting and backup of the optical fibers in the splice closure and can also partially bear the optical communication transmission function of the terminal splice closure. Meanwhile, a new mode is provided in the aspects of solving the communication transformation and the network configuration automation of the metropolitan area network and the agricultural area network. The direct connection of the OPPC optical cable in the splice closure and the convenient use of the optical fiber jumping service can be realized. And jumping the fiber to the external equipment needing the fiber resource by using the prefabricated optical cable through an MPO connector arranged in the bottom of the MPO fiber multi-core switching jumper 7. The product can be applied to service scenes needing optical fiber resources, such as power distribution network automation, tower monitoring, moving loop monitoring and the like, and has a great market prospect for temporarily opening optical communication transmission such as emergency.
Example two
As shown in fig. 4, this embodiment is an application of the fully insulated OPPC intermediate connection device for distribution automation to the metropolitan area network and the rural area network. The difference between this embodiment and the above embodiment is that the mounting platform is directly mounted on the frame rod 11 to mount the fully insulated OPPC intermediate connection device for network automation, and the MPO multi-core fiber patch cord 7 is connected through the external information box 12 to complete the communication transmission in the corresponding area, and the remaining infrastructure type is basically the same as the above embodiment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The fully-insulated OPPC intermediate connection device applied to distribution network automation is characterized by comprising an installation shell (1) and an insulating shell cover (2) matched with the installation shell (1), wherein a direct melting disc (3) and an optical fiber adapter (4) are sequentially arranged in the installation shell (1), and a fiber inlet, a fiber outlet and an expansion port are sequentially formed in the outer wall of the installation shell (1); the fiber inlet and the fiber outlet of the mounting shell (1) are provided with a wire fixing component (5); the dilatation mouth is located installation casing (1) under, and dilatation mouth department is provided with supporting component (6).
2. The all-insulated OPPC intermediate connection device applied to distribution network automation of claim 1, wherein the wire fixing assembly (5) comprises a wire column (51); one end of the wire column (51) is connected with the mounting shell (1), and the other end is provided with a cable fixing seat (52).
3. The OPPC intermediate connection device of the fully insulated type applied to distribution automation of claim 2, wherein the outside of the wire column (51) is further provided with a cable fixing support insulator (53).
4. The all-insulated OPPC intermediate connection device applied to distribution network automation of claim 2, wherein the cable fixing base (52) is externally provided with a silica gel insulating sleeve (54).
5. The OPPC intermediate connection device of the fully insulated type for distribution network automation of claim 1, wherein the support assembly (6) comprises a support column (61); one end of the supporting column (61) is connected with the mounting shell (1), and the other end of the supporting column is provided with a mounting plate (62).
6. The OPPC intermediate connection device applied to distribution automation as claimed in claim 5, wherein the mounting housing (1) is further provided with an MPO fiber multi-core switching jumper wire (7) which has one end connected with the fiber adapter (4) terminal and the other end penetrating through the supporting column (61) and extending to the mounting plate (62).
7. The OPPC intermediate connection device of the fully insulated type applied to distribution automation of claim 5, wherein a post insulator (63) is further provided outside the support post (61).
8. The all-insulated OPPC intermediate connection device applied to distribution automation of claim 5, wherein the middle of the mounting plate (62) is provided with a wiring port (62a), and the surface of the mounting plate (62) is further provided with a plurality of assembling ports (62b) for fixing the mounting plate (62).
9. The all-insulated OPPC intermediate connection device applied to distribution network automation of any of claims 1-8, wherein the mounting housing (1) and the insulating housing cover (2) are both made of SMC insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122230275.2U CN215813485U (en) | 2021-09-15 | 2021-09-15 | Be applied to automatic middle device that continues of all insulation type OPPC of distribution network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122230275.2U CN215813485U (en) | 2021-09-15 | 2021-09-15 | Be applied to automatic middle device that continues of all insulation type OPPC of distribution network |
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| CN215813485U true CN215813485U (en) | 2022-02-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115755308A (en) * | 2022-12-07 | 2023-03-07 | 国网湖北省电力有限公司孝感供电公司 | 10KV OPPC line power distribution network automation system |
-
2021
- 2021-09-15 CN CN202122230275.2U patent/CN215813485U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115755308A (en) * | 2022-12-07 | 2023-03-07 | 国网湖北省电力有限公司孝感供电公司 | 10KV OPPC line power distribution network automation system |
| CN115755308B (en) * | 2022-12-07 | 2023-11-03 | 国网湖北省电力有限公司孝感供电公司 | 10KV OPPC circuit power distribution network automation system |
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