EP0840421A1 - Kabelverbindungsgehäuse oder Kabelschuh für Mittelspannungskabel - Google Patents

Kabelverbindungsgehäuse oder Kabelschuh für Mittelspannungskabel Download PDF

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Publication number
EP0840421A1
EP0840421A1 EP97660085A EP97660085A EP0840421A1 EP 0840421 A1 EP0840421 A1 EP 0840421A1 EP 97660085 A EP97660085 A EP 97660085A EP 97660085 A EP97660085 A EP 97660085A EP 0840421 A1 EP0840421 A1 EP 0840421A1
Authority
EP
European Patent Office
Prior art keywords
spline
cable
joint box
space
shoe
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.)
Withdrawn
Application number
EP97660085A
Other languages
English (en)
French (fr)
Inventor
Markku Kokkonen
Hannu Teirikangas
Henrik Söderholm
Tuomas Antikainen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekko Oy AB
Original Assignee
Sekko Oy AB
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 Sekko Oy AB filed Critical Sekko Oy AB
Publication of EP0840421A1 publication Critical patent/EP0840421A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
    • H01R4/5025—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone combined with a threaded ferrule operating in a direction parallel to the conductor

Definitions

  • the cable joints and cable shoes for medium-voltage cables are based on compressible boxes and shoes. Therefore, each lateral surface requires a separate box and, in addition, individual clamping jaws are required for individual boxes. During the course of clamping or compression, the box also develops burrs, which may cause partial discharges and destroy the joint unless such burrs are ground off. Thus, the burrs must be ground off. However, the grinding produces conductive metal particles, which are problematic if trapped between the insulation and contraction box of a cable where the particles may produce partial discharges.
  • An object of the invention is to provide a cable joint box or a cable shoe for coupling a medium-voltage cable therewith without the above-mentioned drawbacks.
  • the illustrated cable joint box comprises a tubular housing 1 provided with cavity spaces 10, which are separated by a central partition 11 and rotationally symmetrical and disposed concentrically relative to the box housing 1.
  • Each space 10 receives a multi-segment spline 2, whose outer surface has an angle of convergence which is substantially equal to the angle of convergence found in the axial central area of the cavity space 10.
  • the space 10 has its outer end provided with an internal thread 4 engaged by the thread of a clamping nut 3.
  • a washer 5 Between the spline 2 and the nut 3 is a washer 5, which reduces friction between the spline and the nut as the spline 2 is forced deeper into the space 10 by turning the nut 3.
  • the clamping nut 3 is provided with a central hole 9, disposed as an axial extension to a space 8 defined by the spline segments.
  • the spline segments separated by gaps 7 only join each other at the narrower end of the spline 2, the spline segments being more readily able or having more space to approach each other at the wider end of the spline than at the narrower end thereof.
  • an end piece 6 included in the spline is only provided with small webs, whereby the spline segments connect to each other and whose deformation or rupture enable movement of the spline segments towards each other also at the narrower end of said spline as the spline 2 is pushed deeper into the space 10.
  • the angles of convergence and traveling distance of the spline 2 may vary to some extent.
  • the cable shoe only differs from the above-discussed joint box in the sense that, instead of a spline joint included in one end, the housing 1 is provided with a screw-joint lug for connecting the cable shoe to a rail or to an immobile instrument terminal.
  • a joint box or a cable shoe operating on spline principle in accordance with the invention offers e.g. the following benefits:
  • the invention is not limited to the above-discussed embodiment, but its structural configuration may vary in several ways.
  • the movement of a spline can be effected, not by a thrust screw but instead by a spline-pulling clamping means.
  • the spline can be designed to be reducible at both ends thereof by alternately cutting open the gaps between the spline segments at both ends of the spline.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Cable Accessories (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Communication Cables (AREA)
EP97660085A 1996-10-30 1997-07-25 Kabelverbindungsgehäuse oder Kabelschuh für Mittelspannungskabel Withdrawn EP0840421A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI964368 1996-10-30
FI964368A FI101025B (fi) 1996-10-30 1996-10-30 Kaapelijatkosholkki tai kaapelikenkä keskijännitekaapeleille

Publications (1)

Publication Number Publication Date
EP0840421A1 true EP0840421A1 (de) 1998-05-06

Family

ID=8546961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97660085A Withdrawn EP0840421A1 (de) 1996-10-30 1997-07-25 Kabelverbindungsgehäuse oder Kabelschuh für Mittelspannungskabel

Country Status (10)

Country Link
EP (1) EP0840421A1 (de)
AU (1) AU3419397A (de)
CZ (1) CZ285869B6 (de)
EE (1) EE9700179A (de)
FI (1) FI101025B (de)
HR (1) HRP970581A2 (de)
HU (1) HUP9701576A3 (de)
NO (1) NO974989L (de)
PL (1) PL321670A1 (de)
SK (1) SK140097A3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006082449A1 (en) 2005-02-04 2006-08-10 Tyco Electronics Uk Limited Electrical connector
CN113594760A (zh) * 2021-08-06 2021-11-02 杨玉亭 一种电缆连接器
CN116598801A (zh) * 2023-06-07 2023-08-15 安徽中邦特种电缆科技有限公司 一种电缆连接结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191514436A (en) * 1915-10-12 1916-08-17 Oreste Bajma-Riva A Coupling for Mechanically and Electrically Connecting Wires, Metal Cords and the like.
CH112294A (de) * 1925-02-02 1925-10-16 Zwicky Geb Polschuh.
CH165955A (fr) * 1933-04-13 1933-12-15 Gardy Particip App Raccord pour conducteurs électriques.
CH178656A (de) * 1934-05-21 1935-07-31 Flury Arthur Kupplungseinrichtung.
US2475741A (en) * 1943-01-06 1949-07-12 Robert A Goeller Connector
US5362253A (en) * 1994-01-03 1994-11-08 Lin Kuang Ts An Distribution cable mounting device
US5440073A (en) * 1994-05-02 1995-08-08 Lin; Kuang-Ts'an Lin Electric cable mounting device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191514436A (en) * 1915-10-12 1916-08-17 Oreste Bajma-Riva A Coupling for Mechanically and Electrically Connecting Wires, Metal Cords and the like.
CH112294A (de) * 1925-02-02 1925-10-16 Zwicky Geb Polschuh.
CH165955A (fr) * 1933-04-13 1933-12-15 Gardy Particip App Raccord pour conducteurs électriques.
CH178656A (de) * 1934-05-21 1935-07-31 Flury Arthur Kupplungseinrichtung.
US2475741A (en) * 1943-01-06 1949-07-12 Robert A Goeller Connector
US5362253A (en) * 1994-01-03 1994-11-08 Lin Kuang Ts An Distribution cable mounting device
US5440073A (en) * 1994-05-02 1995-08-08 Lin; Kuang-Ts'an Lin Electric cable mounting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006082449A1 (en) 2005-02-04 2006-08-10 Tyco Electronics Uk Limited Electrical connector
CN113594760A (zh) * 2021-08-06 2021-11-02 杨玉亭 一种电缆连接器
CN113594760B (zh) * 2021-08-06 2023-07-21 东莞市格瑞斯科技有限公司 一种电缆连接器
CN116598801A (zh) * 2023-06-07 2023-08-15 安徽中邦特种电缆科技有限公司 一种电缆连接结构
CN116598801B (zh) * 2023-06-07 2024-05-14 安徽中邦特种电缆科技有限公司 一种电缆连接结构

Also Published As

Publication number Publication date
SK140097A3 (en) 1998-05-06
NO974989D0 (no) 1997-10-29
AU3419397A (en) 1998-05-07
FI964368A0 (fi) 1996-10-30
CZ285869B6 (cs) 1999-11-17
PL321670A1 (en) 1998-05-11
HUP9701576A3 (en) 2000-03-28
HUP9701576A2 (hu) 1998-06-29
CZ337097A3 (cs) 1998-05-13
NO974989L (no) 1998-05-04
HU9701576D0 (en) 1997-11-28
EE9700179A (et) 1998-06-15
FI101025B (fi) 1998-03-31
HRP970581A2 (en) 2000-08-31

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