WO2014007464A1 - Tube de protection pour boîte de connexion de câble électrique formé par compression de tube et agrandissement de tube - Google Patents

Tube de protection pour boîte de connexion de câble électrique formé par compression de tube et agrandissement de tube Download PDF

Info

Publication number
WO2014007464A1
WO2014007464A1 PCT/KR2013/004549 KR2013004549W WO2014007464A1 WO 2014007464 A1 WO2014007464 A1 WO 2014007464A1 KR 2013004549 W KR2013004549 W KR 2013004549W WO 2014007464 A1 WO2014007464 A1 WO 2014007464A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
power cable
expansion
pipe
shaft
Prior art date
Application number
PCT/KR2013/004549
Other languages
English (en)
Korean (ko)
Inventor
지상현
Original Assignee
주식회사 원컨덕터
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 주식회사 원컨덕터 filed Critical 주식회사 원컨덕터
Publication of WO2014007464A1 publication Critical patent/WO2014007464A1/fr

Links

Images

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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • 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
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • 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
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint

Definitions

  • the present invention relates to a protective tube of an ultra-high voltage power cable junction box, and more particularly, to a power tube junction box protective tube that allows both ends of a copper tube having one outer diameter to cope with various outer diameters through shafts and expansion pipes.
  • Ultra high voltage power cables are installed between power plants and substations.
  • connection between power cables exposes the conductors built in the center of both power cables, and is connected through a part called a sleeve that electrically connects the conductors of both power cables to each other so that insulation breakdown does not occur depending on the power capacity transmitted and distributed.
  • Insulation parts made of various insulating materials such as epoxy, insulating paper and rubber are inserted.
  • the protective tube is finally connected to both sides to protect the connection and act like a metal sheath of the power cable.
  • These protective tubes are connected to each other by a metal sheath of the electric power cable and lead-leaving work, and the other protective tubes are connected to each other.
  • the protective tube functions as a metal sheath of a power cable, so it is made of a copper material having excellent electrical conductivity.
  • the protective tube generally has a cylindrical shape.
  • copper pipes were cut from raw materials and processed at both ends.
  • the outer diameter of the power cable also increased, and the outer diameter of the protective tube also increased.
  • the copper pipe raw material has a problem of cost increase because the raw material value does not increase proportionally according to the size of the outer diameter but increases exponentially.
  • the thickness of the protective tube has recently become thin, and copper sheets have been rolled to produce and use copper tubes.
  • the junction box for the ultra-high voltage power cable must have a different outer diameter depending on the size of the insulated parts reinforced inside, and the outer part of the cable connection part has a large outer diameter due to the influence of the insulated parts. As the insulation parts are connected to both cable ends, the outer diameter is reduced. Therefore, the use of a straight cylindrical tube with the same outer diameter also causes unnecessary cost waste such as waste of raw materials and the amount of compound filled in the empty space of the protective tube. It is common for this to be formed differently.
  • An object of the present invention for solving the above-mentioned problems is to provide a protective tube that serves as a connection protection and a metal sheath used in the connection box for the ultra-high voltage power cable, if necessary, one of the conduit and the other of the protective tube can be used to expand To provide.
  • one end of the protective tube and the other end is expanded to provide a protective tube that can be used as a flange replacement fitting the expanded portion.
  • the protective tube for power cable junction box formed by the shaft tube and expansion tube according to the present invention for solving the above-mentioned problems, as a protective tube for the ultra-high voltage power cable junction box, made of the same material cylindrical, the shaft tube to be connected to the metal sheath of the power cable It can be composed of a shaft tube portion, a cylindrical main tube portion without a shaft tube or expansion tube, and an expansion tube flange portion which is vertically extended from the distal end portion of the main tube portion to function as a flange.
  • a fastening force auxiliary part protruding convexly in one direction may be formed to assist the fastening force between the flanges.
  • a predetermined gasket fixing portion may be formed at a predetermined position of the expansion flange to protrude convexly in one direction to assist the fixing force of the gasket when a gasket capable of performing a sealing function between the flanges is inserted.
  • the O-ring insert may protrude convexly in one direction so that the O-ring can be inserted when an O-ring capable of performing a sealing function between flanges is inserted at a predetermined position of the expansion flange portion.
  • the protective tube for the power cable junction box formed by the shaft tube and expansion tube according to the present invention is a protective tube for the ultra-high voltage power cable junction box, made of a cylindrical shape of the same material, and the tube portion is condensed to be connected to the metal sheath of the power cable; It may be composed of a cylindrical main tube portion without a shaft tube or expansion tube, and an expansion tube connection portion which is horizontally expanded from an end portion of the main tube portion to an outer diameter larger than an outer diameter of the main tube portion and bolted to an insulating tube.
  • the protective tube for the power cable junction box formed by the shaft tube and expansion tube according to the present invention is a protective tube for the ultra-high voltage power cable junction box, made of a cylindrical shape of the same material, and the tube portion is condensed to be connected to the metal sheath of the power cable; It is possible to fasten both protective tubes by covering the outer side of a cylindrical main tube part without a shaft tube or expansion tube and a protective tube having a same outer diameter which is horizontally expanded from the distal end of the main tube part to an outer diameter larger than the outer diameter of the main tube part and joined on the other side. It can be made with expansion connections.
  • the protective tube for the power cable junction box formed by the shaft tube and expansion tube is a protective tube for the ultra-high voltage power cable junction box, made of the same cylindrical material, the cylindrical main body portion without the shaft tube or expansion tube, and the power cable
  • one end of the protective tube can be condensed and the other end is enlarged, and the expanded portion can be used as a replacement part of the flange.
  • FIG. 1 shows a protective tube for the power cable junction box formed by the shaft tube and expansion tube according to the first embodiment of the present invention.
  • Figure 2 shows a protective tube for the power cable junction box formed by the shaft tube and expansion tube according to a second embodiment of the present invention.
  • FIG 3 shows a protective tube for a power cable junction box formed by the shaft tube and expansion tube according to a third embodiment of the present invention.
  • Figure 4 shows a protective tube for power cable junction box formed by the shaft tube and expansion tube according to a fourth embodiment of the present invention.
  • Figure 5 shows a protective tube for the power cable junction box formed by the shaft tube and expansion tube according to a fifth embodiment of the present invention.
  • Figure 6 shows a protective tube for the power cable junction box formed by the shaft and expansion pipe according to a sixth embodiment of the present invention.
  • FIG. 7 shows a protective tube for a power cable junction box formed by the shaft tube and expansion tube according to a seventh embodiment of the present invention.
  • FIG. 8 shows the protective tube shaft expansion and expansion process of the fifth and seventh embodiments shown in FIGS. 5 and 7.
  • FIG. 9 shows the protective tube shaft expansion and expansion process of the sixth embodiment shown in FIG.
  • Main building part 14a, 24a, 34a, 44a, 64a, 14b, 24b, 34b, 44b, 64b
  • 26a, 26b tightening force assisting part 36a, 36b, 66a, 66b: gasket fixing part
  • FIG. 1 is a cross-sectional view of a protective tube for a power cable junction box formed by the shaft tube and expansion tube according to the first embodiment of the present invention.
  • the junction box for the power cable more specifically the intermediate junction box is formed by the pair of protective tubes (11a, 11b).
  • the protective tubes 11a and 11b are formed in the shape of a cylindrical tube made of copper material, and may be made of any copper tube material or copper plate material, and the size of the outer diameter thereof varies depending on the power capacity of the power cable.
  • the protective tubes 11a and 11b are connected to each other with power cables connected to each other, and are connected to a portion to which insulating components are connected for insulation reinforcement, and finally, the protective tubes are fastened to protect the inside thereof and to serve as a metal sheath.
  • At least one pair of these protective tubes 11a and 11b is fastened according to the length and the connection outer diameter, and the protective tubes at both ends are respectively mechanically and electrically connected to each other in the manner of power cable metal sheath and soft wire.
  • the connection between the two is bolted to each other through a flange or the like and is connected mechanically or electrically.
  • the structure of the protective tube (11a, 11b) is shown in Figure 1, the first embodiment of the present invention shown in Figure 1 is a form of a pair of protective tube is connected to the protective tube A (11a) and protective tube B (11b). Each has a form in which one end is crowned and the other end is expanded.
  • the protective tube A (11a) is the main tube portion 14a which maintains the form of the original tube without the shaft tube or the expansion tube, and the tube portion 12a and the main tube portion whose one end of the main tube portion 14a is condensed and connected to the power cable metal sheath.
  • the other end of 14a is expanded and consists of the expansion pipe part 15a which serves as a flange.
  • the main tube portion 14a and the shaft tube portion 12a have a shaft tube inclined portion 13a interposed therebetween.
  • the protective tube B 11b also has a main tube portion 14b which maintains the form of an original tube without a shaft tube or expansion tube, one end portion of the main tube portion 14b which is connected to a power cable metal sheath, and is connected to a power cable metal sheath.
  • the other end of the main pipe part 14b is expanded and consists of an expansion pipe part 15b which serves as a flange.
  • A is an enlarged view of expansion flange portions 15a and 15b having a shape in which both protective pipes 11a and 11b are connected, and both expansion flange portions 15a and 15b are butt-coupled to each other and fastened by bolts or the like.
  • the expansion flange portion (15a, 15b) has a form in which the outer end portion is bent in one direction, the outer side of the bent portion of the expansion pipe portion (15b) is inserted into the bent portion of the expansion flange portion (15a). Safety as a mechanical coupling is aimed at.
  • FIG. 2 is a cross-sectional view of a protective tube for a power cable junction box formed by the shaft tube and expansion tube according to a second embodiment of the present invention.
  • FIG. 2 is the same in configuration except for the difference in the shape of the expansion flange portions 25a and 25b compared with the first embodiment in FIG.
  • FIG. B shows a form in which the two protective tubes 21a, 21b are butt-coupled to each other to be fastened by bolts, etc.
  • the parts which face-to-face contact are contacted in a straight shape, but in the case of the second embodiment,
  • the fastening force assistants 26a and 26b for assisting the fastening force between the flanges are formed.
  • the fastening force assisting portions 26a and 26b are formed to have a semi-circular protrusion formed in the same direction on the cross-section (to the left in the drawing) to be butt-coupled to each other.
  • FIG 3 shows a protective tube for a power cable junction box formed by the shaft tube and expansion tube according to a third embodiment of the present invention.
  • the third embodiment shown in FIG. 3 has a form in which a gasket 37 is inserted between both flanges as compared with the first and second embodiments.
  • FIG. C shows a form in which the two protective tubes 31a and 31b are butt-coupled to each other to be fastened by bolts or the like through the gasket 37.
  • the surface-to-face contact is performed, but the third embodiment is performed.
  • the example has a gasket 37 insertion structure for performing a sealing function between flanges.
  • the gasket 37 may have a disc shape, and holes may be inserted into the outer circumferential side at equal intervals, and gasket fixing parts 36a and 36b may be formed to assist the fastening force between the fixing of the gasket 37 and the flange. do.
  • the gasket fixing parts 36a and 36b are formed in the form of semicircular protrusions in the same direction on the cross-section (to the left in the drawing) and are mediated and coupled between both expansion pipe flanges 35a and 35b.
  • the gasket fixing parts 36a and 36b are mediated by the flange coupling, the outer leading end bent portions of the expansion flange parts 35a and 35b are bent in opposite directions rather than in the same direction as in the first and second embodiments. It has a form to be combined.
  • Figure 4 shows a protective tube for power cable junction box formed by the shaft tube and expansion tube according to a fourth embodiment of the present invention.
  • the fourth embodiment of the present invention shown in FIG. 4 has a structure in which an O-ring 47 is inserted rather than a gasket, as compared with the third embodiment.
  • the expansion pipe portions 45a and 45b are formed such that the protection pipes 41a and 41b are formed as D (expanded view of the coupling of both protection pipes 41a and 41b) so that the O-ring 47 can be inserted.
  • O-ring inserts 46a and 46b having protrusions protruding in opposite directions to each other to form an O-ring groove when they are fastened to each other are formed.
  • Figure 5 shows a protective tube for the power cable junction box formed by the shaft tube and expansion tube according to a fifth embodiment of the present invention.
  • the fifth embodiment of the present invention shown in FIG. 5 is a form in which the insulating tube 52 is interposed between the two protective tubes 53a and 53b, unlike the first to fourth embodiments. This is an example where a slight external diameter expansion is necessary when tightened according to the external diameter.
  • Both protective pipes 53a and 53b may require a slight external diameter expansion at the distal end in order to match the outer diameter of the insulating cylinder 52 at the fastening portion. At this time, the expansion pipe connecting portions 53a and 53b may be expanded to be in contact with the insulating cylinder 52. Allow bolts to be tightened.
  • Figure 6 shows a protective tube for the power cable junction box formed by the shaft and expansion pipe according to a sixth embodiment of the present invention.
  • the sixth embodiment of the present invention shown in FIG. 6 is similar to the third embodiment, but the front end of one of the protective tubes 61b, or both of the left protective tubes or both of the protective tubes, is the main tube portion (a) and the second shaft tube portion. (b) and the case of the first shaft pipe portion c and the corner shaft pipe portion d.
  • one end of the protective tube is condensed once, but in the sixth embodiment, the constitution other than the constitution has the same configuration.
  • the two protective tubes are coupled to each other, but in addition, three protective tubes may be connected to each other. That is, it is possible to form expansion tube flanges at both ends as two protective tubes and the middle protective tube as in the above-described examples and to be coupled to each other. Similarly, a structure in which four or more sheaths may be connected to each other may be possible.
  • the fifth embodiment of the present invention has one copper tube, one end of which is axial, and the other end of which is made through a process of a slight expansion for coupling with an insulating tube. This process will be described with reference to FIG. 8.
  • one copper tube has one copper tube, and the other has a structure of expansion pipe for forming a flange, which is described with reference to FIG. 9. Becomes
  • FIG. 7 shows a protective tube for a power cable junction box formed by the shaft tube and expansion tube according to a seventh embodiment of the present invention.
  • the seventh embodiment of the present invention shown in Fig. 7 is the expansion of the same concept as the fifth embodiment.
  • the fifth embodiment is to expand the expansion connection for the connection with the insulated passage
  • the seventh embodiment is to expand the expansion connection when connecting the protective tube without the insulated connection (this junction box is usually called). .
  • the protective tubes 71a and 71b In order to fasten the two protective tubes 71a and 71b to each other, it is common to use a copper tube having the same outer diameter and weld the flanges to tighten the flanges.
  • the protective tubes 71a and 71b having the same outer diameter are one side.
  • the distal end of the protective tube 71b is expanded to form an expansion pipe connecting portion 73 so that the protective tube 71b can be fitted to the outside of the protective tube 71a to be assembled.
  • the insertion groove 75 formed on the predetermined outer side of the protective tube 71a and the protrusion 74 formed on the predetermined outer side of the protective tube 71b are fitted together to assist the fastening force. It is possible to form the projection 72 in the protective tube 71a so as not to exceed the engagement position of both protective tubes 71a and 71b.
  • FIG. 8 shows the protective tube shaft expansion and expansion process of the fifth and seventh embodiments shown in FIGS. 5 and 7.
  • a protective tube 81 having an outer diameter required by rolling up a copper tube raw material or copper plate is prepared.
  • the cylindrical inner mold 82 having an outer diameter corresponding to the inner diameter of the protective tube 81 is inserted into the protective tube 81 (with a spaced apart from the portion to be expanded by a predetermined distance d1), and the protective tube 81
  • a cylindrical outer mold 83 having an inner diameter corresponding to the outer diameter of the protective tube 81 is inserted into the outer side (B).
  • the outer mold 83 has two inner diameters, one having an inner diameter ⁇ 1 corresponding to the outer diameter of the protective tube 81 and the other having an inner diameter ⁇ 2 corresponding to the outer diameter of the protective tube 81 to be expanded.
  • the inner mold 82 and the outer mold 83 are inserted into each other in a state overlapping each other by a predetermined distance d2, and in this state, the protective tube 81 and the inner and outer molds 82 and 83 are rotated by sealing (not shown). While pushing the front end portion of the protective tube 81 while expanding the expansion portion 85 is formed (C).
  • the opposite end of the expansion tube 85 is a shaft tube, but the shaft tube can be implemented in various ways, such as by heat treatment, and thus a detailed description thereof will be omitted.
  • one end has a tube with a slightly larger outer diameter, the other end is concentric, and the protective tube shown in FIGS. 5 and 7 can be manufactured.
  • FIG. 9 shows the protective tube shaft expansion and expansion process of the sixth embodiment shown in FIG.
  • the process shown in FIG. 9 is a process for manufacturing the 1st-4th and 6th embodiments of the present invention, and illustrates a process of manufacturing the protective tube 61b of the 6th embodiment as an example.
  • the protective tube 91 (copper tube) which has a predetermined outer diameter like (A) is produced.
  • one end of the protective tube 91 is subjected to the primary shaft tube by a heat treatment step or the like to form the first shaft tube portion 96b, and in this state, the shaft tube mold 92 is moved in the direction of the arrow to the inner diameter of the protective tube 91. (B).
  • the shaft tube mold 92 has a tapered shape at one corner, and is inserted into the protective tube 91 with the tapered portion inward, so that the other side is aligned with the distal end of the protective tube 91, and then the secondary shaft tube in the P direction.
  • the second shaft pipe portion 96b is formed (C).
  • the shaft tube mold 92 is removed and the corner shaft mold 93 is inserted to form the edge 96c by conduit (D).
  • the shaft tube of the corner portion is formed by a semicircle in a circle shape, the lower portion or the upper portion of the cross section first (by 1/2 circle), and the remaining portion.
  • Corner shaft mold 93 is formed to be able to move up and down in the direction of the arrow. The reason for the corner shaft tube by half (circle) is to use the corner shaft mold (93) to make the shaft at one time, but you need to use a mold with the inner diameter that matches the outer diameter of the tip of the protective tube. Because you can't.
  • the expansion pipe inner mold 94 and the expansion pipe outer mold 95 are inserted into the outer and outer sides of the protective pipe 91 while keeping the state overlapped with each other (part where the flange is to be formed). Leaving the length of the phosphorus forming portion (a)), in parallel with the rotation is pushed up to the outer mold 95 by sealing (not shown) or the like (E).
  • protrusions As the shape of the outer mold 95, protrusions (fastening aids 26a and 26b, gasket fixing parts 36a and 36b, and O-ring inserts 46a and 46b) are formed, and expansion pipes 99 having bent ends are formed. (F).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cable Accessories (AREA)

Abstract

La présente invention concerne un tube de protection pour une boîte de connexion de câble électrique à ultra haute tension, et plus particulièrement, un tube de protection pour une boîte de connexion de câble électrique dans laquelle les deux extrémités d'un tube en cuivre qui possède un diamètre extérieur sont comprimées et agrandies pour être capables de correspondre à divers diamètres extérieurs. Le tube de protection pour une boîte de connexion de câble électrique formé par compression de tube et agrandissement de tube selon la présente invention peut comprendre : une section de tube comprimée, qui est le tube de protection pour une boîte de connexion de câble électrique à ultra haute tension, est formée pour présenter une forme cylindrique à base de cuivre, et est comprimée pour être raccordée à une gaine métallique du câble électrique ; une section de tube principale cylindrique dont la compression de tube et l'agrandissement de tube sont absents ; et une section bride d'agrandissement de tube qui est agrandie verticalement à partir d'une partie terminale de la section de tube principale pour fournir une fonction de bride.
PCT/KR2013/004549 2012-07-06 2013-05-24 Tube de protection pour boîte de connexion de câble électrique formé par compression de tube et agrandissement de tube WO2014007464A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120073721A KR101365186B1 (ko) 2012-07-06 2012-07-06 축관 및 확관에 의해 형성된 전력케이블 접속함용 보호관
KR10-2012-0073721 2012-07-06

Publications (1)

Publication Number Publication Date
WO2014007464A1 true WO2014007464A1 (fr) 2014-01-09

Family

ID=49882188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/004549 WO2014007464A1 (fr) 2012-07-06 2013-05-24 Tube de protection pour boîte de connexion de câble électrique formé par compression de tube et agrandissement de tube

Country Status (2)

Country Link
KR (1) KR101365186B1 (fr)
WO (1) WO2014007464A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110021907A (zh) * 2019-04-24 2019-07-16 安徽伊法拉电气有限公司 一种10kv电缆接头保护装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103928852A (zh) * 2014-04-30 2014-07-16 江苏精一电气科技有限公司 超大功率展位箱
KR101978971B1 (ko) 2018-11-30 2019-05-17 김현석 지중배전용 케이블 보호관
KR102276756B1 (ko) 2020-02-28 2021-07-14 주식회사 청우에스이 케이블 접속용 연관 축관기

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120022136A (ko) * 2010-09-01 2012-03-12 대한전선 주식회사 초고압케이블 종단접속함용 하부 보호관
KR20120034474A (ko) * 2010-10-01 2012-04-12 대한전선 주식회사 조인터 보호용 ｆｒｐ 케이스 체결 구조
KR20120039168A (ko) * 2010-10-15 2012-04-25 (주)원컨덕터 초고압 전력케이블 접속함의 보호관
KR200460919Y1 (ko) * 2012-02-21 2012-06-20 박선수 동결방지 파이프

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120022136A (ko) * 2010-09-01 2012-03-12 대한전선 주식회사 초고압케이블 종단접속함용 하부 보호관
KR20120034474A (ko) * 2010-10-01 2012-04-12 대한전선 주식회사 조인터 보호용 ｆｒｐ 케이스 체결 구조
KR20120039168A (ko) * 2010-10-15 2012-04-25 (주)원컨덕터 초고압 전력케이블 접속함의 보호관
KR200460919Y1 (ko) * 2012-02-21 2012-06-20 박선수 동결방지 파이프

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110021907A (zh) * 2019-04-24 2019-07-16 安徽伊法拉电气有限公司 一种10kv电缆接头保护装置

Also Published As

Publication number Publication date
KR101365186B1 (ko) 2014-02-21
KR20140006534A (ko) 2014-01-16

Similar Documents

Publication Publication Date Title
WO2014007464A1 (fr) Tube de protection pour boîte de connexion de câble électrique formé par compression de tube et agrandissement de tube
WO2015068920A1 (fr) Appareil d'isolation de tuyau ayant un couvercle de finition d'une structure liée par compression
WO2017146256A1 (fr) Transformateur de courant
WO2016126015A1 (fr) Enveloppe de protection en matériau isolant pour unité vanne
WO2016208909A1 (fr) Ensemble électrode pour batterie secondaire et son procédé de fabrication
WO2017024931A1 (fr) Boîtier de dérivation à câble de connexion et déconnexion rapides
WO2017030356A1 (fr) Dispositif de raccord de métaux hétérogènes et son procédé de fabrication
JP2007097332A (ja) ガス絶縁スイッチギヤ
WO2020111646A1 (fr) Ensemble bouchon, batterie secondaire et son procédé de fabrication, et bloc-batterie
WO2013015475A1 (fr) 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
KR101181265B1 (ko) 초고압 전력케이블 접속함의 보호관
WO2017030271A1 (fr) Structure de raccord de câbles, procédé de raccord de câbles et manchon conducteur utilisé en son sein pour raccord de câble
WO2020242001A1 (fr) Tuyau d'articulation ayant une structure d'accouplement à toucher unique et structure de prévention de libération
WO2019235709A1 (fr) Élément d'étanchéité pour raccord de tuyau
KR20180074042A (ko) 반원관 결합 형태의 초고압 전력케이블 접속함용 접속 보호관
WO2023080315A1 (fr) Dispositif d'enveloppe isolante de structure d'isolation de tuyau, et son procédé de fabrication
WO2016129799A1 (fr) Tube de transfert de liquide cryogénique
WO2023177069A1 (fr) Pmj avec différents diamètres et unité de caoutchouc avec différents diamètres pour la connexion d'un câble ultra-haute tension avec différents diamètres
BR102012020381A2 (pt) Conector prensado para tensão total para cabos reforçados
WO2020071719A1 (fr) Batterie secondaire
WO2020067612A1 (fr) Dispositif de connexion hybride et procédé de connexion pour support tubulaire
WO2023167566A1 (fr) Tuyau de raccordement
WO2021086078A1 (fr) Batterie secondaire et son procédé de fabrication
CN103972673A (zh) 管形母线中间连接装置及其连接方法
WO2022145529A1 (fr) Tuyau creux à section transversale variable et son procédé de fabrication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13813892

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13813892

Country of ref document: EP

Kind code of ref document: A1