CN110932103B - System and method for fixing station optical cable in-station surplus cable and joint box - Google Patents
System and method for fixing station optical cable in-station surplus cable and joint box Download PDFInfo
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- CN110932103B CN110932103B CN201911251789.7A CN201911251789A CN110932103B CN 110932103 B CN110932103 B CN 110932103B CN 201911251789 A CN201911251789 A CN 201911251789A CN 110932103 B CN110932103 B CN 110932103B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4452—Distribution frames
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power Engineering (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention provides a fixing system for optical cable in-station surplus cables and a joint box of a transformer substation, which comprises: surplus cable frame, splice box and be used for connecting the base of surplus cable frame and splice box. The base is directly placed on the roof surface in a non-mechanical connection manner, and the minimum stability of the fixing system is more than or equal to 1 when the OPGW optical cable and/or the guiding optical cable are wound. The base is a prefabricated block, the upper surface of which is respectively provided with a residual cable frame slot and a connector box slot, and the lower end part of a vertical rod of the residual cable frame is vertically inserted into the residual cable frame slot; the joint box is fixed on the base through a fixed rod inserted into the joint box slot. The invention has simple structure, low cost, convenient use, firm structure, high reliability and no need of changing the building structure of the roof of the transformer substation and destroying the waterproof layer of the roof, and does not move or destroy the roof due to external force. The invention also provides a method for fixing the surplus cable and the joint box of the optical cable of the transformer substation, which provides reliable design basis for the arrangement of the surplus cable and the joint box of the optical cable of the power transmission line in the future.
Description
Technical Field
The invention belongs to the technical field of overhead transmission line optical cable station-entering auxiliary devices, and particularly relates to a system and a method for fixing station optical cable station-entering surplus cables and a joint box.
Background
An optical fiber composite overhead ground wire (OPGW) is a ground wire in which optical fibers are compositely installed in a high-voltage power transmission line, and constitutes an optical fiber communication network while the power transmission line is erected. The OPGW is wrapped by the metal conducting wire, so that the optical cable is more reliable, stable and firm, and plays an important role in the transmission of various information in the power production. At present, communication between transformer stations is mostly connected by optical cables, and as the most common connection medium, OPGW optical cables are widely applied to communication between transformer stations. After an OPGW optical cable of an overhead transmission line reaches a roof of a transformer substation, in order to prevent faults of the optical cable in operation, the optical cable with a certain length is normally reserved at the top of the transformer substation by utilizing a residual cable frame, the optical cable reaches the top of the transformer substation through a tower, the optical cable is wound in a plurality of circles of the residual cable frame and then enters a joint box, the OPGW optical cable is converted into a guide optical cable in the joint box, and the guide optical cable is wound in the plurality of circles of the residual cable frame and then enters the transformer substation along the top of a wall body. However, the arrangement mode of the residual cable frame and the joint box is often extremely irregular, and a plurality of construction units fix the residual cable frame and the joint box on the wall body or the ground of the transformer substation by using expansion bolts, so that the waterproof layer of the transformer substation enclosure is damaged or the original roof civil engineering structure is changed, or the residual cable frame and the joint box are obviously in direct contact with the lightning protection zone around the enclosure. The fault that the OPGW entering the station section is struck by lightning or the short-circuit current damages the optical cable occurs for many times, and the safe and stable operation of the power grid is directly influenced.
Therefore, the fixing system for the optical cable of the overhead transmission line to enter the station is developed, the design quality and the construction process level of the power transmission and transformation project are improved, the communication safety of the overhead transmission line is guaranteed, and the fixing system has very important significance in guaranteeing the safe operation of the 35-110 kV overhead transmission line.
Disclosure of Invention
In order to solve the defects and problems in the prior art, the invention provides a fixing system for surplus cables and a joint box of an optical cable of a transformer substation, wherein a base is arranged in the system and used for fixing a surplus cable frame and a joint box, the base is a balancing weight directly placed on the surface of a roof, the fixing system can meet the fixing requirements of the surplus cables and the joint box of the optical cable of an overhead transmission line with different voltage levels, and the problem that the conventional optical cable of the transformer substation is randomly and randomly led in can be solved. The invention also provides a method for fixing the station-entering surplus cable and the joint box of the optical cable of the transformer substation.
The technical scheme of the invention is as follows:
the utility model provides a fixing system of surplus cable of transformer substation's optical cable inbound and splice box, includes: the residual cable frame is used for winding the OPGW optical cable and the guiding optical cable; a splice closure for splicing the OPGW optical cable and the guiding optical cable; the base is used for being connected with the residual cable frame and the joint box; the base is directly placed on the surface of the roof in a non-mechanical connection mode, and the minimum stability of the fixing system under the condition of winding the OPGW optical cable and/or the guiding optical cable is more than or equal to 1.
Furthermore, the residual cable rack comprises a cross rod and a vertical rod, the cross rod is fixedly connected with the vertical rod in a cross mode, and hook-shaped fixing clamps are respectively arranged at two ends of a rod body of the cross rod and the vertical rod and are used for supporting and fixing an optical cable wound on the hook-shaped fixing clamps; the optical cable is connected with the contact part of the hook-shaped fixing clip in a binding way.
Furthermore, the residual cable frame and the joint box are connected to the upper surface of the base through the base support, the upper end of the base support comprises two joints, one joint is fixedly connected with the lower end of the joint box, and the other joint is fixedly connected with the lower end of the residual cable frame.
Furthermore, the base is a prefabricated block, the upper surface of the prefabricated block is respectively provided with a residual cable frame slot and a joint box slot, and the lower end part of the vertical rod of the residual cable frame is vertically inserted into the residual cable frame slot; the joint box is fixed on the base through a fixing rod inserted into the joint box slot.
Furthermore, the system also comprises a reserved through hole, a wall reserved protective sleeve and a channel reserved protective sleeve which are positioned in the transformer substation enclosure wall; and the OPGW optical cable penetrates through the reserved through hole, is connected into the joint box through the residual cable frame and is converted into a guide optical cable, the guide optical cable enters a wall reserved protective casing reserved in the transformer substation enclosure through the residual cable frame, and the channel reserved protective casing buried in the transformer substation channel downwards along the transformer substation enclosure enters a transformer substation main control room and is connected with communication equipment in the transformer substation main control room.
Furthermore, the base is a combined base and is formed by combining two or more prefabricated blocks, and the residual cable frame slots and the joint box slots are arranged on the same or different prefabricated blocks in the combined base; the prefabricated section all is equipped with the through-hole that runs through the block for hold and wear each prefabricated section to link together fixedly long connecting rod together.
Furthermore, a horizontal first through hole is formed in the lower end portion of the residual cable frame vertical rod, a horizontal second through hole is formed in the lower end portion of the fixed rod of the joint box, the hole diameters of the first through hole and the second through hole are not smaller than the outer diameter of the long connecting rod, and the rod body of the long connecting rod penetrates through the first through hole and the second through hole; and the two ends of the long connecting rod through hole are provided with long connecting rod fixing parts for fixing the long connecting rod.
Furthermore, the periphery of the base is also provided with an adjusting rod through hole for accommodating an adjusting screw rod for supporting and adjusting the height of the base; adjusting screw external diameter size with adjust the aperture size looks adaptation of pole through-hole, adjusting screw one end is the screw thread section that the part stretched into adjusting the pole through-hole, cup joint on the screw thread section and be greater than with the external diameter of base surface contact the limit nut device in pole through-hole aperture (for example, the limit nut device includes the nut and is greater than with the external diameter of base surface contact the gasket of nut external diameter), the other end is the stabilizer blade that has the callus on the sole with ground contact.
A method for fixing surplus cables and a joint box of an optical cable of a transformer substation in a station comprises the following steps:
step S000, providing a fixing system of the substation optical cable in-station surplus cable and the joint box according to any one of claims 1 to 8;
step S100, directly placing a base on the surface of a roof in a non-mechanical connection manner;
step S200, connecting the residual cable frame and the joint box to a base;
step S300, winding the OPGW optical cable from the top of the transformer substation to the residual cable rack, then connecting the OPGW optical cable to a joint box, converting the OPGW optical cable into a guide optical cable in the joint box, and then winding the guide optical cable coming out of the joint box to the residual cable rack;
further, step S100 further includes adjusting the minimum stability of the system to be greater than or equal to 1 by selecting the number of the prefabricated blocks forming the combined base;
further, step S300 includes passing the OPGW optical cable from the top of the substation through a reserved through hole in the substation enclosure, winding the plurality of loops of the remaining cable frames, connecting the optical cable to the connector box, converting the optical cable into a guide optical cable, winding the guide optical cable around the remaining cable frames, connecting the guide optical cable to a wall reserved in the substation enclosure, extending the enclosure of the substation downward to the substation channel, and connecting the guide optical cable to the substation main control room along the channel reserved in the substation channel.
Further, in step S100, the base is a combined base and is formed by combining two or more prefabricated blocks, and the remaining cable holder slots and the connector box slots are disposed on the same or different prefabricated blocks in the combined base; the prefabricated section all is equipped with the through-hole that runs through the block for hold and wear each prefabricated section to link together fixedly long connecting rod together.
Further, in step S200, hook-shaped fixing clips are respectively arranged at two ends of the rod bodies of the cross rods and the vertical rods of the remaining cable rack, and are used for supporting and fixing the optical cable wound on the hook-shaped fixing clips; the optical cable is bound and connected with the contact part of the hook-shaped fixing clamp; the cross superposed part of the cross rod of the residual cable frame and the vertical rod is fixedly connected through a bolt;
further, in step S200, the limiting nut device that is in contact with the lower surface of the base and has an outer diameter larger than the aperture of the through hole of the adjusting rod is sleeved on the threaded section, and comprises a nut and a gasket that is in contact with the lower surface of the base and has an outer diameter larger than the outer diameter of the nut, and the other end of the limiting nut device is a support leg that is in contact with the ground and has a foot pad.
After the technical scheme is adopted, the invention mainly has the following good effects:
1. the fixing device in the system is used for fixing the surplus cable frame and the joint box, the base is a prefabricated plate directly placed on the ground surface, and the system has the advantages of simple structure, convenience in use, attractive appearance, wide application range and the like, can meet the fixing requirements of the surplus cables and the joint box of the optical cables of the overhead transmission lines with different voltage levels in the station, and can also pointedly solve the problem that the incoming cables of the optical cables of the existing transformer substation are disordered.
2. The invention fixes the residual cable frame and the joint box on the base which is in non-mechanical connection with the ground, does not need to change the building structure of the roof of the transformer substation and destroy the waterproof layer of the roof, has firm structure, does not move or be damaged by external force, and has high reliability.
3. The fixing system base can be flexibly designed according to the field construction requirement, can realize the supporting and fixing of a single base, and can adopt a combined base formed by combining two or more prefabricated blocks, wherein the prefabricated blocks forming the combined base are provided with slots. The flexible selection of the base precast block realizes the assembly simplification of the fixing device, and the transportation is convenient, thereby being convenient for the site construction.
4. The invention designs that the optical cable enters the substation from the wall preformed hole (wall through hole), changes the traditional mode that the optical cable enters the substation from the top of the wall, and avoids the direct contact with the lightning protection belt on the roof of the substation, thereby preventing the substation from being damaged by lightning stroke on the communication optical cable and ensuring the safe operation of the communication of the overhead transmission line.
5. The invention can be widely applied to the fixation of the surplus cables and the joint boxes of the optical cables of the overhead transmission lines with different voltage grades, and provides reliable design for the arrangement of the surplus cables and the joint boxes of the optical cables of the transmission lines in the future.
Drawings
Fig. 1 is a schematic overall structural diagram of a fixing system for a substation optical cable station-entering excess cable and a joint box according to an embodiment of the present invention.
Fig. 2 is a schematic view of an embodiment of a base body in a fixing system for a substation optical cable station-entering residual cable and a joint box according to an embodiment of the invention.
Fig. 3 is a schematic view of another embodiment of a base body in a fixing system for a substation optical cable in-station surplus cable and a joint box according to an embodiment of the invention.
Fig. 4 is a schematic view of a base body in a fixing system for excess cable and splice closure of a substation optical cable in-station according to another embodiment of the present invention.
Fig. 5 is a finished product diagram of field construction of a fixing system for excess cable and a joint box of a substation optical cable entering station, provided by the embodiment of the invention.
Description of reference numerals:
FIG. 1: 1-residual cable frame, 2-OPGW optical cable, 3-guide optical cable, 4-joint box, 5-lightning protection belt, 6-transformer substation enclosure, 7-reserved through hole, 8-wall reserved protective casing (PVC protective casing), 9-base, 10-base support, 11-optical cable link fitting, 12-tower (iron tower), 13-main control room, 14-communication equipment, 15-channel reserved protective casing (PE protective casing).
FIG. 2: 16-joint box slot, 17-residual cable frame slot, 18-adjusting rod through hole, 19-long connecting rod through hole, 20-base body, 21-long connecting rod and 26-handle.
FIG. 3: 19-long connecting rod through hole, 21-long connecting rod, 22-adjusting screw rod, 23-supporting leg with foot pad, 24-long connecting rod fixing part, 25-limiting nut device, 23-supporting leg with foot pad, 27-non-groove prefabricated block, 28-slot prefabricated block, 29-first through hole, 30-second through hole and 31-thread section.
Detailed Description
In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples:
the invention provides a fixing system for station-entering residual cables and a joint box of an optical cable of a transformer substation, which comprises an OPGW optical cable: the optical fiber composite overhead ground wire is also called as an optical fiber composite overhead ground wire, optical fibers are placed in the ground wire of an overhead high-voltage transmission line to form an optical fiber communication network on a transmission line, and the structural form has the double functions of ground wire and communication and is generally called as an OPGW optical cable. One end of the OPGW optical cable is connected with an overhead transmission line outside the transformer substation, one end of the OPGW optical cable is connected with the guiding optical cable (3) through the joint box (4), one end of the guiding optical cable (3) is connected with the OPGW optical cable through the joint box (4), one end of the guiding optical cable is connected with the communication equipment (14) in the transformer substation, the rest cable frame is used for winding the OPGW optical cable and the guiding optical cable, and the joint box is used for converting the OPGW optical cable into the guiding optical cable. And (3) remaining the cable frame: the optical cable splicing tower is used for placing redundant optical cables on the optical cable line splicing tower and is matched with an optical cable joint box for use. As shown in fig. 1, includes: and the residual cable rack (1) is used for winding an OPGW optical cable (2) and a guide optical cable (3), wherein the guide optical cable is a common optical cable or an ADSS and is a part of short optical cable for leading the OPGW into a transformer substation or a communication station from the air. A joint box (4) used for connecting the OPGW optical cable (2) and the guiding optical cable (3) and a base used for connecting the residual cable rack (1) and the joint box (4). The base is directly placed on the surface of the roof in a non-mechanical connection mode, and the minimum stability of the fixing system under the condition of winding the OPGW optical cable and/or the guiding optical cable is more than or equal to 1. The term "stability" as used herein refers to the degree of stability of an object in a stable equilibrium state, and the magnitude of stability is determined by the height of the center of gravity of the object and the size of the supporting surface. The stability of an object in a certain direction is related to the height of the gravity center of the object and the turning radius of the object in the certain direction. Considering that the stability is related to the height of the center of gravity and the turning radius, the stability of the object is quantitatively described by the tangent function value of the maximum inclination angle of the object turning to a certain direction. When the stability of the object in a certain direction is represented by eta, r represents the turning radius of the object in the direction, and h represents the height of the center of gravity, the stability eta is equal to r/h, and is in direct proportion to the turning radius r and in inverse proportion to the height h of the center of gravity. And under the condition that h is unchanged, when r is minimum, the r/h value is minimum, and the minimum stability is obtained. The specification and the model of the residual cable rack and the optical cable related to the invention are fixed when the finished product is delivered from a factory or before the finished product is installed in site construction (for example, the length L1 of the fixed part of a certain residual cable rack is 400mm, the total length L2 is 1200mm, and the weight is 6kg), so the stability range of the related residual cable rack can be calculated in advance according to the winding number of the optical cable on the residual cable rack, the height of the residual cable rack, the weight of the optical cable and other conditions. In order to increase the stability of the object, the base area can be increased, the height of the gravity center can be reduced, and the base area and the height of the gravity center can be increased and reduced simultaneously. For example, the turning radius r of the remaining cable rack representing a certain direction is determined, the gravity center height h of the remaining cable rack with the wound cable is measured by using a gravity center height measuring method in the prior art, and then the minimum stability of the fixing system provided by the invention under the condition of winding the OPGW optical cable and/or the guiding optical cable is calculated to be more than or equal to 1. The residual cable rack bag (1) comprises a cross rod and a vertical rod, the cross rod is fixedly connected with the vertical rod in a crossed manner, and hook-shaped fixing clamps are respectively arranged at two ends of a rod body of the cross rod and the vertical rod and are used for supporting and fixing an optical cable wound on the hook-shaped fixing clamps; the optical cable is bound and connected with the contact part of the hook-shaped fixing clamp; the joint box is fixedly connected with the base. The base is a prefabricated block which is provided with a residual cable frame slot and a joint box slot on the upper surface, and the lower end part of a vertical rod of the residual cable frame is vertically inserted into the residual cable frame slot; the joint box is fixed on the base through a fixed rod inserted into the joint box slot. The base is respectively provided with a residual cable frame slot (17) and a joint box slot (16). One embodiment is that the lower end part of the vertical rod of the residual cable frame is vertically inserted into a residual cable frame slot on the base, the joint box (4) is fixedly connected with the base through a fixed rod, and the lower end part of the fixed rod is vertically inserted into a joint box slot (16) on the base. The residual cable frame slot (17) and the joint box slot (16) can also be commonly used. The remaining cable holder slots and the splice closure slots can also be provided on the same or different prefabricated sections in the modular base. The prefabricated section all is equipped with the through-hole that runs through the block for hold and wear each prefabricated section to link up the long connecting rod fixed together.
According to some embodiments of the fixing system for the substation optical cable station-entering residual cable and the joint box, the residual cable frame (1) can also be composed of two metal rectangular rods which are fixedly connected in a cross mode, wherein the two ends of each rectangular rod are provided with a certain taper, a rubber layer is sleeved outside the end head, the residual cable frame slot (17) is also provided with a certain taper, and the thickness of the rubber layer is matched with the size of the residual cable frame slot (17). When the rectangular rod is vertically inserted into the residual cable frame slots on the pure balancing weights in the middle of the base, the rectangular rod is just fixedly connected with the residual cable frame slots (17), and the residual cable frame slots (17) with conicity are convenient to disassemble and pull the rectangular rod forming the residual cable frame (1).
The other embodiment is that the residual cable frame (1) and the joint box (4) are respectively fixedly connected with the base through a base support (10). The base support (10) is designed to comprise a cross beam and the lower ends of two fixing plate supports, and the two ends of the cross beam are respectively clamped by one fixing plate; the cable support is characterized by further comprising an upper end part of a support which is vertically and fixedly installed on the cross beam, two fixing plates at the lower end part of the base support (10) are fixedly connected with the base through expansion bolts, and a vertical rod of the residual cable support (1) is fixedly connected with a bolt on the cross beam at the lower end part. The upper end of the base bracket is fixedly connected with the lower end of the joint box (4).
Further, base (9) have supporting and fixed action concurrently as the balancing weight, base (9) can be the concrete slab of cast in situ shaping and with the direct contact of transformer substation's roof, the arrangement mode of traditional surplus cable frame and splice box is often extremely irregular, many construction units are through using expansion bolts, with surplus cable frame and splice box fixed at transformer substation's wall body or subaerial, thereby the waterproof layer of transformer substation's enclosure has been destroyed or original roof civil engineering structure has been changed, the base that this embodiment adopted concrete slab to make, need not any mounting fixture such as expansion bolts, directly place the base on the roof ground surface can, be used for fixed surplus cable frame and splice box, prevent that surplus cable frame and splice box from removing or toppling under strong wind or other exogenic actions.
Further, referring to fig. 4 and 5, the cross bars and the vertical bars of the remaining cable rack (1) may be metal bars, and the cross-shaped overlapping portions of the cross bars and the vertical bars fix the two metal bars by bolts. Referring to fig. 1 and 4, the base bracket (10) is a three-dimensional connecting rod supporting structure with an H-shaped lower end and an L-shaped upper end, the H-shaped structure is composed of a cross beam of the base bracket (10) and a left fixing plate and a right fixing plate, one metal rod body of the rest cable frame (1) is vertically inserted into the middle part of the base (9) and is intersected with the H-shaped structure at the lower end of the base bracket (10), and the metal rod body is fixedly connected with the base bracket (10) at a joint part. Because the base (9) is a concrete slab formed by cast-in-place, after a metal rod body of the residual cable rack (1) is vertically inserted into the middle part of the base (9), along with the solidification of concrete, the vertically inserted part is communicated with the hook-shaped fixing clamp at the end of the metal rod contacted with the base and is wrapped and fixed by the concrete.
The fixing system for the optical cable station-entering surplus cable and the joint box of the transformer substation further comprises a reserved through hole (7), a wall reserved protective sleeve (8) and a channel reserved protective sleeve (15), wherein the reserved through hole is positioned in a transformer substation enclosure wall; OPGW optical cable (2) passes through reserved through hole (7), and after winding a plurality of circles through surplus cable frame (1), access connector box (4) turns into guide optical cable (3), and guide optical cable (2) enters wall reserved protective casing pipe (8) reserved in transformer substation enclosure (6) after winding a plurality of circles of surplus cable frame (1), and along the transformer substation enclosure downwards to the transformer substation channel, channel reserved protective casing pipe (15) buried in the transformer substation channel enters into transformer substation master control room (13), and is connected with communication equipment (14) in transformer substation master control room (13). The design enables the optical cable to enter the station from the reserved through hole of the wall body, changes the mode that the optical cable enters the station from the top of the wall in the prior art, and avoids obvious direct contact with the lightning protection belt on the periphery of the enclosing wall of the roof of the transformer substation, thereby preventing the communication equipment in the transformer substation from being damaged difficultly to be repaired due to the transmission of lightning current through the optical cable when the transformer substation is struck by lightning and avoiding the potential safety hazard of the type.
In another embodiment, the system base is a combined base, and two or more prefabricated blocks are combined and comprise a slot-free prefabricated block (27) and a slot prefabricated block (28), and each combined body at least comprises a slot prefabricated block (27); with reference to fig. 3, fig. 3 shows that the residual cable frame slot (17) on the slot precast block (27) and the lower end part of the connector box slot (16) both have a certain taper, a rubber layer is sleeved outside the lower end part of the residual cable frame vertical rod, and the thickness of the rubber layer is matched with the size of the residual cable frame slot (17); the rubber layer is sleeved outside the lower end part of the fixed rod of the joint box, and the thickness of the rubber layer is matched with the size of the joint box slot (16); each prefabricated block is provided with a plurality of long connecting rod through holes (19) which penetrate through the block body at the same position in the same horizontal direction and are used for fixedly connecting the combined body together through a long connecting rod (21). The long connecting rod (21) is provided with a handle (26). The periphery of the base is also provided with an adjusting rod through hole for accommodating an adjusting screw rod for supporting and adjusting the height of the base; adjusting screw external diameter size and the aperture size looks adaptation of adjusting the pole through-hole, adjusting screw one end is the screw thread section that the part stretched into and adjusts the pole through-hole, cup jointed on screw thread section (31) and is greater than the limit nut device who adjusts pole through-hole aperture with the external diameter of base lower surface contact (for example, the limit nut device includes the nut and is greater than the gasket of nut external diameter with the external diameter of base lower surface contact), the stabilizer blade that has the callus on the sole of the other end for with ground contact.
Furthermore, the lower end of the residual cable frame vertical rod is provided with a first through hole (29) with an axis along the horizontal direction, the lower end of the fixed rod of the joint box is provided with a second through hole (20) with an axis along the horizontal direction, the hole diameters of the first through hole (29) and the second through hole (30) are not smaller than the outer diameter of the long connecting rod (21), the rod body of the long connecting rod (21) penetrates through the first through hole (29) and the second through hole (30), and the two ends of the long connecting rod through hole (19) are provided with long connecting rod fixing parts (24) used for fixing the long connecting rod (19). In practical construction, the first through hole and the second through hole are not absolutely limited in design, and the first through hole and the second through hole can be matched with the rod body inserted into the hole and the rubber layer outside the rod body.
Further, the system also comprises a base for supporting and adjusting the height of the base and provided with long threads
An adjusting screw (22); as shown in figure 2, adjusting rod through holes (18) are respectively formed in the vertical direction of the base and close to the front wall, the rear wall, the left wall and the right wall, the outer diameter of each adjusting screw rod (22) is matched with the aperture of each adjusting rod through hole (18), one end of each adjusting screw rod (22) is vertically screwed into the base through each adjusting rod through hole (18), the other end of each adjusting screw rod is in contact with the ground, a welding pad (23) is arranged on a contact part, and the height between the base and the supporting legs (23) with foot pads on the ground is adjusted by screwing nuts. In order to increase firmness and stability in the actual construction process, usually, not less than three adjusting screws (22) and preferably four adjusting screws are arranged on one base. The material of base has multiple selection: concrete, alloy or steel. The base support is 900mm long and 30mm wide, is fixed on a concrete base 1000mm long, 500mm wide and 100mm high, and is connected with optical cables with different sections by adjusting the sizes of the residual cable frame and the joint box. The number of the adjusting screws contained in the system is preferably four.
Furthermore, a plurality of fixed pressing strips for reinforcing and connecting the plurality of balancing weights can be laid on the upper surface of the base, and the fixed pressing strips are tightly pressed on the base through bolts screwed into the balancing weight mounting holes, so that the stability between the balancing weights is further enhanced.
The invention also provides a method for fixing the substation optical cable station-entering residual cable and the joint box based on the fixing system of the substation optical cable station-entering residual cable and the joint box, which specifically comprises the following steps:
step S000, providing a fixing system for the surplus cable and the joint box of the optical cable of the transformer substation in the station;
step S100, directly placing a base on the surface of a roof in a non-mechanical connection manner;
step S200, connecting the residual cable frame and the joint box to a base;
and step S300, winding the OPGW optical cable from the top of the transformer substation to the residual cable rack, connecting the OPGW optical cable to the joint box, converting the OPGW optical cable into a guide optical cable in the joint box, and winding the guide optical cable coming out of the joint box to the residual cable rack.
Further, step S100 further includes adjusting the minimum stability of the system to be greater than or equal to 1 by selecting the number of the prefabricated blocks forming the combined base;
further, step S300 includes passing the OPGW optical cable from the top of the substation through a reserved through hole in the substation enclosure, winding the plurality of loops of the remaining cable frames, connecting the optical cable to the connector box, converting the optical cable into a guide optical cable, winding the guide optical cable around the remaining cable frames, connecting the guide optical cable to a wall reserved in the substation enclosure, extending the enclosure of the substation downward to the substation channel, and connecting the guide optical cable to the substation main control room along the channel reserved in the substation channel.
Further, in step S100, the base is a combined base, and is formed by combining two or more prefabricated blocks, and the remaining cable holder slots and the connector box slots are disposed on the same or different prefabricated blocks in the combined base; the prefabricated section all is equipped with the through-hole that runs through the block for hold and wear each prefabricated section to link up the long connecting rod fixed together.
Further, in step S200, hook-shaped fixing clips are respectively arranged at two ends of the rod bodies of the cross rods and the vertical rods of the remaining cable rack, and are used for supporting and fixing the optical cable wound on the hook-shaped fixing clips; the optical cable is bound and connected with the contact part of the hook-shaped fixing clamp; the cross-shaped superposed part of the cross rod of the residual cable frame and the vertical rod is fixedly connected through a bolt.
Further, in step S200, a limit nut device having an outer diameter larger than the aperture of the through hole of the adjustment rod and contacting with the lower surface of the base is sleeved on the thread section, the limit nut device includes a nut and a gasket having an outer diameter larger than the outer diameter of the nut and contacting with the lower surface of the base, and the other end of the limit nut device is a support leg having a foot pad and contacting with the ground.
The invention has simple structure, low cost and convenient use, can optimize the arrangement of beautiful surplus cables, changes the prior disordered arrangement mode, does not need to change the building structure of the roof of a transformer substation and destroy the waterproof layer of the roof by fixing the surplus cables on the concrete base, has firm structure, does not move or be damaged by external force, and has high reliability.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby; all simple equivalent changes and modifications made according to the claims and the content of the creation specification of the present invention should still fall within the scope covered by the present patent.
Claims (10)
1. The utility model provides a fixing system of surplus cable of transformer substation's optical cable inbound and splice box, includes: the optical cable connector comprises a residual cable frame, a connector box, a base and a connecting piece, wherein the residual cable frame is used for winding an OPGW optical cable and a guiding optical cable; the base is directly placed on the surface of the roof in a non-mechanical connection mode, and the minimum stability of the fixing system under the condition of winding the OPGW optical cable and/or the guiding optical cable is more than or equal to 1; the base is a prefabricated block, the upper surface of the prefabricated block is provided with a residual cable frame slot and a connector box slot respectively, and the lower end part of a vertical rod of the residual cable frame is vertically inserted into the residual cable frame slot; the joint box is fixed on the base through a fixing rod inserted into the joint box slot.
2. The system for fixing the optical cable station-entering surplus cable and the joint box of the transformer substation according to claim 1, wherein the surplus cable frame comprises a cross rod and a vertical rod, the cross rod is fixedly connected with the vertical rod in a cross manner, and hook-shaped fixing clamps are respectively arranged at two ends of a rod body of the cross rod and the vertical rod and used for supporting and fixing the optical cable wound on the hook-shaped fixing clamps; the optical cable is connected with the contact part of the hook-shaped fixing clip in a binding way.
3. The system for fixing the surplus cable and the joint box for the optical cable of the transformer substation according to claim 1 or 2, wherein the surplus cable frame and the joint box are connected to the upper surface of the base through a base support, the upper end of the base support comprises two joints, one joint is fixedly connected with the lower end of the joint box, and the other joint is fixedly connected with the lower end of the surplus cable frame.
4. The fixing system for the substation optical cable in-station surplus cable and the joint box according to claim 1 or 2, further comprising a reserved through hole, a wall reserved protective casing and a channel reserved protective casing which are positioned in a substation enclosure wall; and the OPGW optical cable penetrates through the reserved through hole, is connected into the joint box through the residual cable frame and is converted into a guide optical cable, the guide optical cable enters a wall reserved protective casing reserved in the transformer substation enclosure through the residual cable frame, and the channel reserved protective casing buried in the transformer substation channel downwards along the transformer substation enclosure enters a transformer substation main control room and is connected with communication equipment in the transformer substation main control room.
5. The system for fixing the optical cable terminal surplus cable and the joint box of the substation according to claim 1, wherein the base is a combined base and is formed by combining two or more prefabricated blocks, and the surplus cable frame slot and the joint box slot are arranged on the same or different prefabricated blocks in the combined base; the prefabricated section all is equipped with the through-hole that runs through the block for hold and wear each prefabricated section to link together fixedly long connecting rod together.
6. The substation optical cable inbound surplus cable and joint box fixing system of claim 5, wherein a horizontal first through hole is formed in the lower end of a vertical rod of the surplus cable frame, a horizontal second through hole is formed in the lower end of a fixing rod of the joint box, the hole diameters of the first through hole and the second through hole are not smaller than the outer diameter of the long connecting rod, and the rod body of the long connecting rod penetrates through the first through hole and the second through hole; and the two ends of the long connecting rod through hole are provided with long connecting rod fixing parts for fixing the long connecting rod.
7. The fixing system for the substation optical cable in-station surplus cable and the joint box as claimed in claim 1 or 5, wherein the periphery of the base is further provided with an adjusting rod through hole for accommodating an adjusting screw rod for supporting and adjusting the height of the base; the adjusting screw rod outer diameter size with adjust the aperture size looks adaptation of pole through-hole, adjusting screw rod one end is the screw thread section that the part stretched into and adjusts the pole through-hole, cup joint on the screw thread section with the outer diameter of base lower surface contact be greater than adjust the limit nut device in pole through-hole aperture, the other end is the stabilizer blade that has the callus on the sole with ground contact.
8. The substation optical cable in-station surplus cable and joint box fixing system of claim 7, wherein the limiting nut device comprises a nut and a gasket which is in contact with the lower surface of the base and has an outer diameter larger than that of the nut.
9. A method for fixing surplus cables and a joint box of an optical cable of a transformer substation in a station comprises the following steps: step S000, providing a fixing system of the substation optical cable in-station surplus cable and the joint box according to any one of claims 1 to 8;
step S100, directly placing a base on the surface of a roof in a non-mechanical connection manner;
step S200, connecting the residual cable frame and the joint box to a base;
step S300, winding the OPGW optical cable from the top of the transformer substation to the residual cable rack, then connecting the OPGW optical cable to a joint box, converting the OPGW optical cable into a guide optical cable in the joint box, and then winding the guide optical cable coming out of the joint box to the residual cable rack;
step S100 further includes adjusting the minimum stability of the system to be greater than or equal to 1 by selecting the number of the prefabricated blocks constituting the combined base.
10. The method of claim 9, wherein the method of securing the substation optical cable inbound surplus cable and the splice closure,
in step S100, the base is a combined base formed by combining two or more prefabricated blocks
The residual cable frame slot and the joint box slot are arranged on the same or different precast blocks in the combined base; the prefabricated blocks are provided with through holes penetrating through the block bodies and used for accommodating long connecting rods for fixedly connecting the prefabricated blocks together in a penetrating manner;
in the step S200, hook-shaped fixing clips are respectively arranged at two ends of the rod body of the transverse rod and the rod body of the vertical rod of the residual cable rack and are used for supporting and fixing the optical cable wound on the hook-shaped fixing clips; the optical cable is bound and connected with the contact part of the hook-shaped fixing clamp; the cross superposed part of the cross rod of the residual cable frame and the vertical rod is fixedly connected through a bolt;
in the step S200, the limiting nut device which is in contact with the lower surface of the base and has the outer diameter larger than the aperture of the through hole of the adjusting rod is sleeved on the threaded section, the limiting nut device comprises a nut and a gasket which is in contact with the lower surface of the base and has the outer diameter larger than the outer diameter of the nut, and the other end of the limiting nut device is a support leg which is in contact with the ground and has a foot pad;
and step S300, passing the OPGW optical cable from the top of the transformer substation through a reserved through hole in a transformer substation enclosure wall, winding a plurality of circles of the rest cable frames, then switching in a connector box to convert the OPGW optical cable into a guide optical cable, winding the guide optical cable for a plurality of circles of the rest cable frames, then entering a wall reserved protective casing reserved in the transformer substation enclosure wall, downwards going to a transformer substation channel along the transformer substation enclosure wall, entering a transformer substation main control room along a channel reserved protective casing buried in the transformer substation channel, and connecting the OPGW optical cable with communication equipment in the transformer substation main control room.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251789.7A CN110932103B (en) | 2019-12-09 | 2019-12-09 | System and method for fixing station optical cable in-station surplus cable and joint box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911251789.7A CN110932103B (en) | 2019-12-09 | 2019-12-09 | System and method for fixing station optical cable in-station surplus cable and joint box |
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| CN110932103A CN110932103A (en) | 2020-03-27 |
| CN110932103B true CN110932103B (en) | 2021-08-24 |
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| CN201911251789.7A Active CN110932103B (en) | 2019-12-09 | 2019-12-09 | System and method for fixing station optical cable in-station surplus cable and joint box |
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| CN114089491A (en) * | 2021-10-12 | 2022-02-25 | 中国地质大学（武汉） | Non-conductor residual cable rack assembly with lightning protection function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202535016U (en) * | 2012-03-22 | 2012-11-14 | 重庆市电力公司信息通信分公司 | OPGW pull-in optical cable safety grounding fixing assembly |
| CN204215070U (en) * | 2014-09-17 | 2015-03-18 | 国家电网公司 | In transformer station, OPGW optical cable draws lower optical cable Anti-freezing structure |
| CN204241732U (en) * | 2014-11-26 | 2015-04-01 | 浙江省电力设计院 | A kind of fiber cable cross connection box with earthing device |
| CN105529697A (en) * | 2016-02-19 | 2016-04-27 | 国网山东省电力公司滨州供电公司 | OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable lightning protection apparatus mounted on parapet wall |
| CN205630581U (en) * | 2016-05-19 | 2016-10-12 | 国网山东省电力公司平度市供电公司 | Surplus cable rack |
| CN208044135U (en) * | 2017-10-26 | 2018-11-02 | 福建源发电力勘察设计有限公司 | A kind of distribution cross-connecting box mounting bracket |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO317652B1 (en) * | 2002-05-03 | 2004-11-29 | Nexans | Optical fiber winding frame |
| CN110011237A (en) * | 2019-03-28 | 2019-07-12 | 国网浙江省电力有限公司杭州供电公司 | A kind of wheeled bracket and remaining cable fixing means for power distribution network bypass flexible cable |
-
2019
- 2019-12-09 CN CN201911251789.7A patent/CN110932103B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202535016U (en) * | 2012-03-22 | 2012-11-14 | 重庆市电力公司信息通信分公司 | OPGW pull-in optical cable safety grounding fixing assembly |
| CN204215070U (en) * | 2014-09-17 | 2015-03-18 | 国家电网公司 | In transformer station, OPGW optical cable draws lower optical cable Anti-freezing structure |
| CN204241732U (en) * | 2014-11-26 | 2015-04-01 | 浙江省电力设计院 | A kind of fiber cable cross connection box with earthing device |
| CN105529697A (en) * | 2016-02-19 | 2016-04-27 | 国网山东省电力公司滨州供电公司 | OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable lightning protection apparatus mounted on parapet wall |
| CN205630581U (en) * | 2016-05-19 | 2016-10-12 | 国网山东省电力公司平度市供电公司 | Surplus cable rack |
| CN208044135U (en) * | 2017-10-26 | 2018-11-02 | 福建源发电力勘察设计有限公司 | A kind of distribution cross-connecting box mounting bracket |
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