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WO2013015475A1 - Appareil de liaison pour réduire le rayon de courbure d'un câble, et son procédé d'utilisation pour construire une liaison pour raccourcir le rayon de courbure du câble - Google Patents

Appareil de liaison pour réduire le rayon de courbure d'un câble, et son procédé d'utilisation pour construire une liaison pour raccourcir le rayon de courbure du câble Download PDF

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Publication number
WO2013015475A1
WO2013015475A1 PCT/KR2011/005769 KR2011005769W WO2013015475A1 WO 2013015475 A1 WO2013015475 A1 WO 2013015475A1 KR 2011005769 W KR2011005769 W KR 2011005769W WO 2013015475 A1 WO2013015475 A1 WO 2013015475A1
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WO
WIPO (PCT)
Prior art keywords
connection
cable
male
insulating
female
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2011/005769
Other languages
English (en)
Korean (ko)
Inventor
이재관
이세준
조호령
주종민
최경선
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PYUNGIL CO Ltd
Original Assignee
PYUNGIL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PYUNGIL CO Ltd filed Critical PYUNGIL CO Ltd
Publication of WO2013015475A1 publication Critical patent/WO2013015475A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member

Definitions

  • the present invention relates to the connection of power cables to narrow underground, ground, and ground structures, and more particularly, to easily install the power cables to be installed in narrow spaces of underground, ground, and ground structures.
  • the cable curvature radius reduction connection device that can reduce the structure as well as the quickness and convenience of the work by minimizing the space occupancy according to the multi-line expansion connection. It is about.
  • power lines are installed in the telephone poles or buried underground.
  • the construction method on the ground and in the air has the advantages of low construction cost, short construction period, economical efficiency, and simplicity of facility work according to construction.
  • the power cables according to the construction of underground lines are limited to power outlets, vertical holes, manholes, handholes, underground structures that install only equipment (transformers, switchgear) under the ground, and ground foundations for efficient utilization of power facilities. Connections in narrow spaces are essential. However, the installation of power cables in the underground and ground structures may cause excessive curvature of the power cables, and the excessive curvature of these power cables may shorten the life of the power cables or may cause failure due to excessive stress concentration at the connection.
  • the cable allowable radius of curvature refers to the radius of the cable can be bent without modifying the mechanical and electrical properties of the cable. That is, the limit radius of the rate of change which represents the degree of warpage of the curve or curved surface.
  • the underground operating guidelines stipulate that the cable (rubber and plastic) allowable radius of curvature must be at least 10 times the cable's standard outer diameter for safety.
  • the power cable applied in 2011 uses 22.9kV water tree suppression faithful power cable (TR CNCE-W), so that the curvature radius is reduced due to the stiffness of the power cable (neutral wire shell recessed structure) when connecting manholes and equipment. Gets bigger
  • connection device for connecting power cables is disclosed.
  • the power cable connecting device is a T-type insulating housing in which the cable connecting part 12 to which the power cable CA is coupled and the connecting groove 13 and the insulating plug coupling part 14 formed on both sides of the cable connecting part intersect each other. (11), an insulating plug 20 coupled to the insulating plug coupling portion 14, a T-shaped connector 10 having a rubber cap 30 coupled to the outside to further seal an interface of the insulating plug, In order to connect between the T-shaped connector 10 and the T-shaped connecting portion 10 and the linear connecting member 40 for connecting by connecting the connecting protrusions 42 on both sides of the body center compartment 41 to the connecting groove 13 And a clamping screw 50 for screwing the connection terminal CA-1 compressed to the conductor of the power cable CA to the nut of the connection conductor inserted into the connection protrusion 42 of the linear connection member 40. It is.
  • Such a power cable connecting device is provided by the repeated extension of the linear connecting member 40 between the T-type connecting port 10 and the T-type connecting port 10 in the multi-line configuration of the power cable.
  • both connecting protrusions 42 and 42 of the linear connecting member 40 are fitted into the connecting grooves 13 and 13 of each of the T-shaped connector 10 on one side and the T-shaped connector 10 on the other side, respectively.
  • the clamping screw 50 is used to connect the end of the linear connecting member 40 to the connection terminal CA-1 of the cable CA in close contact, and the insulating plug coupling portion 14 of each T-shaped connector 10 is connected.
  • the connection of the two-wire power cable (CA) is performed in the process of fixing the insulation plug 20 to the clamping screw 50 and the screw coupling tightening.
  • the linear connecting member 40 is temporarily fixed between the T-type insulating housing 11 and the T-type insulating housing 11 by the respective clamping screws 50, and again, the insulating plug 20 and the respective clamping screws 50.
  • the connection of the power cable CA coupled to each T-type connection port 10 by screwing is performed, and thus the linear connection member 40, which is a connection connecting medium between the T-type connector 10 and the T-type connector 10, is connected. )
  • the connection work is complicated, it takes a lot of time.
  • the present invention the allowable curvature in the narrow underground, surface, ground structures (manholes, hand holes, subsurface equipment installation structure, ground equipment foundation, substation entry / exit points) in accordance with the increase in the underground of the power cable according to the power supply It aims to be able to easily install and connect power cables to devices regardless of radius.
  • the present invention can significantly reduce the allowable curvature radius of the power cable can be reduced and simplified the structure (replace the curved manhole) can maximize the savings in the material, civil engineering costs.
  • the power cable can be easily, quickly and conveniently connected to the underground equipment, the underground work of the power line can be smoothly promoted, and replacement work is easy.
  • the bending point (C / P) of the underground, ground, and ground structures can be easily installed regardless of the allowable curvature radius of the power cable 300 installed in the narrow underground, ground, and ground structures (M / H). It is composed of one set of female and male connectors 100 and 200 connected to the bending point C / P between the power cables 300.
  • connection device for reducing the cable curvature radius of the present invention the connection device for reducing the cable curvature radius of the present invention
  • connection protrusions are formed by inserting the connection studs therein while protruding the bolts on one side, and insulating plug coupling portions penetrating the opposite sides of the connection studs, and the connection studs and the insulating plug coupling portions penetrate in a perpendicular direction.
  • a male screw housing formed with a cable connection part, a setting screw which is screwed to a screw groove on one side of the connection stud through a connection hole of a connection terminal crimped and assembled to a power cable assembled to the cable connection part, and the insulation plug coupling
  • a female formed by forming a connecting groove portion of one side that is wrapped around the connecting protrusion, an insulating plug coupling portion penetrating to an opposite side of the connecting groove portion, and a cable connecting portion penetrated in an orthogonal direction at a portion where the connecting groove portion and the insulating plug coupling portion meet.
  • 1 of the female connector composed of a second insulating plug in a state in which the insulating housing and the nut inserted into the insulating plug coupling part and inserted therein coincide with the connection hole of the connecting terminal crimped and assembled on the power cable assembled to the cable connecting part.
  • the connecting stud bolt part of the male connector and the second insulating plug nut of the female connector are screw-assembled, and the connecting projection part of the male insulating housing is inserted into and embedded in the connecting groove of the female insulating housing.
  • the female and male insulating housings are preferably formed with a shielding layer (semiconductor layer) made of rubber (Rubber) on the outside of the insulating layer body made of EPDM or silicon (Silicone).
  • a shielding layer semiconductor layer made of rubber (Rubber) on the outside of the insulating layer body made of EPDM or silicon (Silicone).
  • connection of the power cable is preferably connected without flow at the cable connection of the male and male insulated housing by using a cable adapter suitable for the outer diameter of the cable.
  • the male and male connectors may be accommodated in the respective rubber caps on the outside of the insulating plug to further increase the sealing characteristics.
  • the first and second insulating plugs are provided with fixing grooves on the opposite sides of the nuts, and the rubber cap forms a fixing protrusion coupled to the fixing grooves, so that the heat dissipation (shrink, expansion) caused by the external temperature deviation is also applied. It is desirable to prevent the deformation as much as possible to maintain the airtight capacity of the thin rubber cap as much as possible.
  • the rubber cap may form a plurality of annular projection rings on the inner circumferential surface to further improve the airtight performance on the outer circumferential surfaces of the male and male insulating housings.
  • the present invention is convenient because it can be used in combination with the expansion of the number of lines and various cable sizes and different angles.
  • the number of rotations may be increased by repeating the coupling of the male connectors to be added to the insulation plug coupling portion of the male connector in the pre-coupled female and male connectors.
  • the present invention is a disk-shaped pressing plate disposed on the outside of each rubber cap, at least one pair of long bolts to be fitted into the coupling hole of the pressing plate, the screw portion formed at the end of the long bolt and screwed to tighten
  • the clamping mechanism of the butterfly nut makes it possible to more firmly maintain the secure connection of the female and male connectors.
  • connection terminal Insert one side of the connection terminal, which is connected to the power cable for connection, into the cable connection section of the female insulated housing, and insert the one side connecting groove into the connection projection of the male insulated housing to connect the bolt of the connection stud to the connection hole of the connection terminal.
  • the second insulating plug is coupled through the insulating plug coupling part in the assembled state in the state, and the female insulation housing is set at an angle variable while tightly tightening the connection terminal and the connection stud by tightening the nut and the bolt part and the screw. Bending the power cable for connecting the ground surface structure at the bending point;
  • the male connector is directly connected to the female connector according to the multi-line extension connection, so that the distance between the molded part of the connection groove of the other connector to be connected and the distance between the center partition of the linear connecting member can be reduced, thereby connecting the male and male connector jaws.
  • the small range of distance reduces the occupancy of the connection space as much as possible, ensuring efficient operation in narrow spaces.
  • the allowable curvature radius according to the installation of the power cable can be significantly reduced, the manhole reduction and simplification is expected to reduce the material, civil engineering cost.
  • FIG. 1 is a view showing a state of laying a power cable in a conventional underground, ground, ground structure.
  • 2A and 2B are exploded cross-sectional views and assembled state cross-sectional views of a cable connecting member which can be connected by varying the angle of a conventional power cable.
  • FIG 3 is an exploded perspective view of the male and male connectors of the present invention.
  • Figure 4 is an exploded perspective view of the constituent members of the male and male connectors of the present invention.
  • Fig. 5 is a cross-sectional view of the assembled state of the present invention, in which the female and male connectors are separated.
  • Fig. 6 is an exploded sectional view of the constituent members of the male connector of the present invention.
  • FIG. 7 is an exploded cross-sectional view of components of the female connector of the present invention.
  • Figure 8 is a cross-sectional view of the coupling state of the male and male connectors of the present invention.
  • Fig. 9 is a cross sectional view of a female and male connector in accordance with the present invention, in which the connection direction of the connected power cable is varied and coupled.
  • 10 is an assembled state cross-sectional view of the number of lines (three lines) of the power cable according to the present invention.
  • FIG. 11 is a cross-sectional view showing a state connected using a cable adapter for each size according to the size of the power cable according to the present invention.
  • FIG. 12 is a view showing an example of the construction of the power cable in the underground, ground, ground structure according to the present invention.
  • Figure 13 is an exploded perspective view illustrating the construction of the male, male connectors of the present invention according to FIG.
  • FIG. 14 is a perspective view of the assembled state of the female, male connector of the present invention according to FIG.
  • male connector 110 male insulated housing
  • connection projection 130 connection stud
  • connection terminal 350 cable adapter
  • the present invention is not limited to the allowable radius of curvature even in narrow underground, surface, ground structures (manholes, handholes, subsurface equipment installation structures, ground equipment foundations, substation entry / exit points) according to the increase in power supply underground facilities. It provides a method for reducing the cable curvature radius, which can be installed in a pair of female and male, which can be installed in an operating state, and a method for reducing the allowable curvature radius of the power cable using such a device as much as possible. do.
  • connection distance of the male and male connector jaws is small, so that the occupancy of the connection space can be reduced as much as possible, so that it can be operated efficiently in a narrow space.
  • FIG. 3 is an exploded perspective view of the female and male connectors of the present invention
  • FIG. 4 is an exploded perspective view of the components of the female and male connectors of the present invention.
  • FIG. 5 is a cross-sectional view of the assembled state of the present invention, in which the female and male connectors are separated
  • FIG. 12 is a view illustrating a construction example of a power cable in the underground, ground, and ground structures according to the present invention.
  • the bending point (C / P) of the underground, ground, and ground structures can be easily installed regardless of the allowable curvature radius of the power cable 300 installed in the narrow underground, ground, and ground structures (M / H). It is composed of one set of female and male connectors 100 and 200 connected to the bending point C / P between the power cables 300.
  • the present invention is a customer power cable to the male connector 100 which is disposed at the bending point (C / P) of the underground, ground, ground structure (M / H) connected to the device side connected to the power cable 300
  • the rigid power cable 300 is connected by connecting the female connector 200 connected to the 300 and setting the customer side power cable at an angle variable so that the cable inlet of the underground, the ground surface, and the ground structure (M / H) can be pulled out.
  • FIG. 6 is an exploded cross-sectional view of the constituent members of the male connector of the present invention.
  • Male connector 100 of the present invention is connected to the opposite side of the connection projection portion 120, the connection stud 130 formed on one side by inserting the connection stud 130 in a state protruding the bolt portion 131 on one side Male insulating housing 110 and a cable connecting portion 150 in which a cable connecting portion 150 penetrated perpendicularly to a portion where the insulating plug coupling portion 140, the connection stud 130, and the insulating plug coupling portion 140 meet is formed.
  • a setting screw 160 which is fastened by screw assembly to the screw groove 132 of the connection stud 130 through the connection hole 320 of the connection terminal 310 which is crimped and assembled to the power cable 300 to be assembled to the power cable 300; It includes a first insulating plug 170 is inserted into the insulating plug coupling portion 140 and inserted into the nut 171 for screwing assembly with the setting screw 160.
  • the connecting protrusion 120 is formed in a narrow protrusion toward the front end
  • the insulating plug coupling portion 140 and the first insulating plug 170 is an insulating plug coupling portion 140 to facilitate assembly according to mutual coupling.
  • the insulating plug 170 is preferably formed of a slant body formed narrower toward the front end to be in close contact with the insulating plug coupling portion 140.
  • FIG. 7 is an exploded cross-sectional view of the constituent members of the female connector constituting the present invention.
  • the female connector 200 of the present invention includes an insulating plug coupling part 240 penetrating to an opposite side of the connecting groove 220 and the connecting groove 220 of one side, which is wrapped around the connecting protrusion 120 of the male insulating housing 110. ), A female insulation housing 210 formed by forming a cable connecting portion 250 orthogonally penetrated at a portion where the connection groove portion 220 and the insulating plug coupling portion 240 meet each other, and the insulating plug coupling portion 240. And a nut 271 inserted therein and coupled to the connection hole 320 of the connection terminal 310 assembled by pressing and squeezing the power cable 300 assembled in the cable connection unit 250. Insulation plug 270 is included.
  • connection protrusion 120 of the male insulating housing 110 is inserted into and connected to the connection groove 220 of the female insulating housing 210.
  • connection groove 220 is formed as an inclined groove formed narrower toward the inner side to be in close contact with the outer surface of the connection projection 120 of the male insulating housing 110.
  • each of the insulation plug coupling portions 140 and 240 and the first and second insulation plugs 270 may be formed with narrow inclined holes inward so that the insulation plug coupling portions 140 and 240 may be easily assembled according to mutual coupling.
  • the insulating plugs 170 and 270 are preferably formed of an inclined body that is narrower toward the front end so as to be in close contact with the insulating plug coupling parts 140 and 240.
  • the female and male insulating housings are preferably formed by shielding layers (semiconductor layers) 111 and 211 made of rubber (rubber) on the outside of the EPDM insulating body.
  • male and male connectors 100 and 200 may further include sealing caps 180 and 280 assembled to the outside of the first and second insulating plugs 170 and 270.
  • first and second insulating plugs 170 and 270 are preferably formed of an epoxy material, and the rubber caps 180 and 280 may be formed of EPDM rubber or PE material.
  • the first and second insulating plugs 170 and 270 form fixing grooves 172 and 172 on opposite sides of the nuts 171 and 271, and the rubber caps 180 and 280 are fixing protrusions 181 and 281 which are coupled to the fixing grooves 172 and 272. Assembled in a fitted state.
  • the rubber cap (180,280) of the thin rubber material during thermal expansion or thermal contraction according to the outside temperature is minimized by the support force of the fixing protrusions (181, 281) of the center to maintain the coupled state.
  • the rubber caps 180 and 280 may form a plurality of annular protrusion rings 182 and 282 on the inner circumferential surface to increase the outer circumferential surfaces and the airtight characteristics of the male and male insulating housings 110 and 210.
  • FIG 8 is a cross-sectional view of the male and male connectors of the present invention, wherein the male connector 100 of the present invention is disposed at the bending point C / P of the underground, the ground, and the ground structure (M / H) to supply power to the device. Is connected to the cable 300.
  • FIG. 9 is a cross-sectional view of the female and male connectors of the present invention, in which the power cables 300 connected to the female and male connectors 100 and 200 are connected at the bending point C / P of the underground structure M / H. It can be set by varying the direction to bend angle variable.
  • the present invention as shown in Figure 10, the other male connector (to be added to the insulating plug coupling portion 140 of the male connector 200 in the male, male connectors (100, 200) pre-coupled at the time of the number of lines It is possible to increase the number of circuits by repetition of coupling 140).
  • the female having the cable connection parts 150 and 250 corresponding to the outer diameter of the power cable 300, the female of the male connector 100 and 200, and the male insulating housing 110 and 210 may be formed.
  • the present invention can use the clamping mechanism 400 to secure the connection (cohesion) state after the connection construction of the male and male connectors.
  • This clamping mechanism 400 is as shown in the exploded perspective view of Figures 3 and 4,
  • Disc-shaped crimp plates 410 and 420 respectively disposed outside the rubber caps 180 and 280 of the male connectors 200 which are expanded to increase the number of lines in the female, male connectors 100 and 200, or the female connectors 100, which are connected to each other.
  • the clamping mechanism 400 has a long bolt 440 in the coupling hole 430 penetrated at regular intervals in the disk-shaped pressing plate (410,420) even if the connection between the female, male connector is made in the state of variable angle Convenient by setting and screwing.
  • FIG. 12 is a view showing the construction of the power cable in the underground, ground, ground structure using the apparatus of the present invention
  • Figure 13 is an exploded perspective view illustrating the construction of the male, male connector of the present invention according to Figure 12
  • 14 is a perspective view of the assembled state of the female, male connector of the present invention according to FIG.
  • the male insulation housing 110 is disposed at the bending point (C / P) of the underground, ground, and ground structures (M / H), and connected to the equipment (S / W) of the underground, ground, and ground structures (M / H).
  • the connection terminal 310 of the power cable 300 is inserted into the cable connection portion 150.
  • the setting screw 160 is connected through the insulating plug coupling part 140 through the connection hole 320 of the connection terminal 310 of the power cable 300 connected to the device S / W.
  • the screw groove 131 of the stud 130 is bound by screw assembly.
  • the male connector 100 is inserted into one side connecting terminal 310 connected to the power cable 300 for connection to the cable connection part 250 of the female insulation housing 210, and one side connection groove 220 ) Is inserted into the connection protrusion 120 of the male insulating housing 110 to assemble the bolt portion 131 of the connection stud 130 through the connection hole 320 of the connection terminal 310.
  • the second insulating plug 270 is inserted through the insulating plug coupling part 240 of the female insulating housing 200, and the nut 271 of the female insulating housing 200 is screwed into the bolt part 131 to connect to the connection terminal 310. Tighten the connection studs 130 while setting the female insulating housing 200 with variable angles and bend at the bending point (C / P: primary bending point) of underground, ground, and ground structures (M / H) for connection. A step of connecting one side of the power cable 300 to the female connector 200 is taken.
  • one side of the power cable 300 for connection is connected to the female connector 200, and the power cable 300 connected to the customer side power cable 300 introduced through the pipelines of underground, ground, and ground structures (M / H).
  • Another male insulating housing 110 is disposed at the bending point (C / P: secondary bending point) of 300.
  • connection terminal 310 of the power cable 300 connected to the customer side is inserted into the cable connection part 150 of the other male insulating housing 110, and the setting screw 160 is connected through the insulating plug coupling part 140.
  • the other connection terminal 310 connected to the power cable 300 for connection is inserted into the cable connection part 250 of the other female insulation housing 210.
  • the second insulating plug 270 is inserted through the insulating plug coupling part 240 of the other female insulating housing 200 to insert the nut 271 of the connection stud 130 of the other male insulating housing 110. Tightening the connection terminal 310 and the connection stud 130 by tightening the bolt portion 131, while setting the other female insulating housing 200 to vary the angle, bending of underground, ground, ground structure (M / H)
  • the construction of connecting the other female connector 200 and the other male connector 100 to the point (C / P: secondary bending point) is performed in a state in which the allowable curvature radius of the power cable 300 is reduced.
  • the male and male insulating plug coupling portions 140 and 240 of the male and female connectors 100 and 200 are assembled by sealing the rubber caps 180 and 280 in a state in which the first and second insulating plugs 170 and 270 are sealed.
  • the characteristic can be further improved.
  • the female and male connectors 100 and 200 connected to the bending point (C / P) of the underground, ground, and ground structures (M / H) or the bending point (C / P) between the power cable 300 are connected (bonded).
  • the clamping mechanism 400 may be used.
  • each rubber cap 180 and 280 of the male connector 200 which is expanded to increase the number of lines in the female, male connector 100 and 200 or the female connector 100, which are connected to each other.
  • the pressing plates 410 and 420 are disposed in the state, and the long nut 440 is inserted into the coupling holes 430 of the pressing plates 410 and 420, respectively.
  • the pressing plates 410 and 420 are pressed to clamp the binding plates.
  • connection connection of various cable sizes can be constructed in a state where the flow is prevented in the cable connection parts 150 and 250 using a cable adapter 350 suitable for the outer diameter of the power cable 300 to be connected.
  • the underground, ground, and ground structures (M / H) described above can be easily installed at the bending point according to the bending angle of the power cable 300 even in a curved manhole instead of a rectangular reduced manhole. Savings can also be maximized for parts.
  • the present invention is a power cable according to the construction of underground lines, such as underground structure and ground equipment foundation to install only the equipment (transformer, switchgear) under the ground for power outlets, vertical holes, manholes, handholes, for efficient use of power facilities It can be conveniently used for multi-line extension connection of power cables in limited and narrow spaces.

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  • Cable Accessories (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

La présente invention porte sur un appareil de liaison pour réduire le rayon de courbure d'un câble, et sur son procédé d'utilisation pour construire une liaison pour raccourcir le rayon de courbure du câble, lesquels peuvent facilement courber, installer et connecter des câbles d'énergie sans être restreints par un rayon de courbure admissible, même dans des structures étroites souterraines, sous la surface et au-dessus du sol (trous d'homme, trous de main, structures d'installation de dispositif sous la surface, fondations d'ancrage de dispositif au-dessus du sol et sites à l'intérieur/à l'extérieur de transformateurs), et lesquels peuvent maximiser la vitesse et la facilité de travail par le fait de réduire au minimum l'espace consommé par une installation et une connexion de lignes multiples, et lesquels peuvent également réduire la taille de la structure, de façon à s'adapter à une augmentation de l'alimentation en électricité vers des installations souterraines.
PCT/KR2011/005769 2011-07-27 2011-08-09 Appareil de liaison pour réduire le rayon de courbure d'un câble, et son procédé d'utilisation pour construire une liaison pour raccourcir le rayon de courbure du câble Ceased WO2013015475A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110074635A KR101222614B1 (ko) 2011-07-27 2011-07-27 케이블 곡률반경 축소용 접속장치와 이를 이용한 케이블 곡률반경 축소 접속시공방법
KR10-2011-0074635 2011-07-27

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WO2013015475A1 true WO2013015475A1 (fr) 2013-01-31

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EP2819250A1 (fr) * 2013-06-26 2014-12-31 3M Innovative Properties Company Dispositif de connexion de câble
CN108808615A (zh) * 2017-04-28 2018-11-13 中天海洋系统有限公司 接线盒及使用所述接线盒的海上发电系统
KR20230082306A (ko) * 2021-12-01 2023-06-08 한국전력공사 지상개폐기용 스터드 볼트 구조체

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KR101475222B1 (ko) * 2013-04-24 2014-12-22 삼성중공업 주식회사 풍력발전기
KR102451238B1 (ko) * 2021-10-06 2022-10-06 동부전기기술단(주) 가스절연 지상개폐기용 절연플러그
KR102716228B1 (ko) * 2022-09-23 2024-10-11 주식회사 경신 앵글 타입 커넥터
KR102788809B1 (ko) * 2023-05-25 2025-04-03 한국전력공사 지상개폐기와 엘보 접속재를 연결하는 커넥터

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CN108808615B (zh) * 2017-04-28 2020-10-30 中天海洋系统有限公司 接线盒及使用所述接线盒的海上发电系统
KR20230082306A (ko) * 2021-12-01 2023-06-08 한국전력공사 지상개폐기용 스터드 볼트 구조체
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