EP0683544A2 - Système de mise à la terre - Google Patents

Système de mise à la terre Download PDF

Info

Publication number
EP0683544A2
EP0683544A2 EP95303252A EP95303252A EP0683544A2 EP 0683544 A2 EP0683544 A2 EP 0683544A2 EP 95303252 A EP95303252 A EP 95303252A EP 95303252 A EP95303252 A EP 95303252A EP 0683544 A2 EP0683544 A2 EP 0683544A2
Authority
EP
European Patent Office
Prior art keywords
bush
cable
conductor
insulation
clamp
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Withdrawn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
EP95303252A
Other languages
German (de)
English (en)
Other versions
EP0683544A3 (fr
Inventor
Edward Hand
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.)
Hawke Cable Glands Ltd
Original Assignee
Hawke Cable Glands 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 Hawke Cable Glands Ltd filed Critical Hawke Cable Glands Ltd
Publication of EP0683544A2 publication Critical patent/EP0683544A2/fr
Publication of EP0683544A3 publication Critical patent/EP0683544A3/fr
Withdrawn legal-status Critical Current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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0524—Connection to outer conductor by action of a clamping member, e.g. screw fastening means

Definitions

  • This invention relates to earth bonding devices for coaxial cables, waveguides and the like. More particularly, the invention is concerned with a device for providing an earth connection between the outer conductor of coaxial cable and an earth conductor, for example to establish a lightening path to earth for an antenna.
  • An earth connection is generally required at the top of the cable close to the antenna and at the bottom of the cable where it enters a building. For some installations additional earth connections may also be required between the top and bottom of the cable. Typically, for long cable runs, an earth connection may be provided every 50 feet along the run.
  • connection with butyl tape and electrical tape is laborious and often has to be done in difficult conditions requiring considerable care to ensure an adequate seal is obtained. This increases the time for installation of an antenna, especially where several earth connections are required. In addition, the presence of the tape hinders inspection of the condition of the connection for maintenance or safety checks.
  • the present invention has been made from a consideration of this problem.
  • the connector has a resilient contact portion sized to fit the exposed conductor of the cable to which the device is fitted, for example by a snap or push fit of the contact portion on the conductor.
  • the connector has an attachment portion that extends generally parallel to and is radially spaced from the cable to which the device is fitted.
  • the attachment portion extends from one end of the bush.
  • the bush has an axially extending radial slit for insertion of the cable to which the device is fitted.
  • the compression means comprises an annular clamp arranged to surround the bush.
  • the clamp comprises a first part having a seating for the bush, a second part for closing the clamp around the bush to compress radially the bush, and a third part for securing the first and second parts to maintain the compression of the bush.
  • the second and third parts are connected to the first part by respective integral hinges.
  • the bush has formations for axially locating the clamp between the ends of the bush.
  • a device for grounding an insulated cable at a location where the insulation is removed to expose a conductor comprises a bush of electrically insulating material through which the cable can extend at the location with the exposed conductor located between opposite ends of the bush, a connector of electrically conductive material for making electrical contact with the exposed conductor within the bush and accessible externally of the bush for connection to ground, and means for compressing the bush for sealing engagement with the insulation at opposite ends of the bush.
  • an earth bonding device 1 for an outer conductor 2 of a coaxial cable 3 comprises a tubular bush 4, a connector 5 and a clamp 6.
  • the bush 4 is made of resilient electrically insulating material such as rubber and has a cylindrical through bore sized to match the outer diameter of the cable 3 with an axially extending radial slit (not shown) in the wall so that the bush 4 can be pulled open to fit over the cable 3.
  • the connector 5 is made of electrically conductive material such as copper and has a contact portion 7 for making electrical contact with the outer conductor 2 of the cable 3 and an attachment portion 8 for connection to an earth conductor (not shown), for example to establish a lightening path to earth for an antenna connected to the cable 3.
  • the connector 5 is moulded into the bush 4 so that the contact portion 7 is located within the bush 4 and the attachment portion 8 extends outwardly at one end of the bush 4.
  • the contact portion 7 is of semi-circular shape sized to fit the outer conductor 2 and may be resilient so that the connector 5 can be sprung onto the outer conductor 2 at a location where the outer insulation 10 of the cable 3 has been removed to establish a good contact.
  • the attachment portion 8 is cranked at 9 so as to extend parallel to and radially spaced from the outer insulation 10 of the cable 3 for the major part of its length to facilitate connection to the earth conductor by an earth wire (not shown).
  • the clamp 6 is a one piece moulding of non-conducting plastics material and has a main body 11 connected to a closure strap 12 by an integral flexible hinge 13 so that the clamp 6 can fit over the cylindrical body of the bush 4 between external flanges 14 at opposite ends of the bush 4.
  • the body 11 has a recess 15 with ratchet teeth 16 to receive the end of the strap 12 remote from the hinge 13 to close the clamp 6 around the bush 4 to compress the bush 4 radially inwards for sealing engagement at opposite ends with the outer insulation 10 of the cable 3 on either side of the outer conductor 2.
  • the strap 12 is formed with ratchet teeth 17 that co-operate with the ratchet teeth 16 in the recess 15 to retain the strap 12 on tightening the clamp 6 to compress the bush 4.
  • the closure strap 12 is secured by a retainer flap 18 connected to the body 11 by an integral flexible hinge 19 so that the clamp 6 can be locked to maintain sealing engagement of the bush 4.
  • the retainer flap 18 fits over an external rib 20 on the closure strap 12 when the clamp 6 is closed and is fastened by snap engagement of an edge lip 21 of a flange 22 on the underside in a groove 23 on the side of the rib 20.
  • the invention provides an earth bonding device for establishing an effective earth connection between the outer conductor of coaxial cable and an earth conductor that is reliably sealed by compression of the bush.
  • wrapping with butyl tape and electrical tape to seal the connection can be dispensed with so that installation is simplified, especially where several earth connections have to be made along the length of the cable, and the condition of the connection can be readily inspected by releasing the clamp for maintenance or safety checks.
  • the device may be fitted to cables of circular, oval, elliptical or other cross-section by providing the bush with a through bore of matching cross-section.
  • the radial slit for fitting the bush over the cable may be omitted and the bush slid along the cable to the required position for making the earth connection.
  • the contact portion of the connector may be of different shape for making electrical contact with oval, elliptical or any other shape of conductor.
  • the attachment portion may be adapted for connection to the earth conductor by an earth wire or any other suitable means.
  • Any suitable means may be employed for compressing the bush to seal around the cable on either side of the outer conductor.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Cable Accessories (AREA)
EP95303252A 1994-05-18 1995-05-16 Système de mise à la terre Withdrawn EP0683544A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9409878A GB9409878D0 (en) 1994-05-18 1994-05-18 Earth bonding device
GB9409878 1994-05-18

Publications (2)

Publication Number Publication Date
EP0683544A2 true EP0683544A2 (fr) 1995-11-22
EP0683544A3 EP0683544A3 (fr) 1998-10-21

Family

ID=10755285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95303252A Withdrawn EP0683544A3 (fr) 1994-05-18 1995-05-16 Système de mise à la terre

Country Status (2)

Country Link
EP (1) EP0683544A3 (fr)
GB (2) GB9409878D0 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10004671A1 (de) * 2000-02-03 2001-08-16 Daume Karin Maschinenteile Einrichtung zum elektrisch leitenden Kontaktieren eines elektrisch leitenden Teiles eines insbesondere länglichen, beispielsweise im wesentlichen zylindrischen Körpers, beispielsweise eines Rohres oder eines Kabels
FR2805667A1 (fr) * 2000-02-29 2001-08-31 Smiths Group Plc Dispositif pour etablir une connexion electrique, notamment sur des gaines de blindage
DE19716400B4 (de) * 1996-04-22 2012-08-16 Andrew Ag Erdungsanordnung für ein Übertragungsleitungskabel
WO2013154922A1 (fr) * 2012-04-10 2013-10-17 John Mezzalingua Associates, Inc. Collet à mi-portée conducteur scindé
WO2015117743A1 (fr) * 2014-02-10 2015-08-13 Fi.Mo.Tec. S.P.A. Dispositif perfectionné pour la mise à la terre de câbles, en particulier des câbles coaxiaux
CN110112589A (zh) * 2019-06-03 2019-08-09 常州安凯特电力器件有限公司 电缆中间接头用同轴电缆接地夹及其安装方法
KR20210045939A (ko) * 2019-10-17 2021-04-27 타이코에이엠피 주식회사 커넥터 어셈블리 및 이를 제조하는 방법

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9726706D0 (en) * 1997-12-19 1998-02-18 Smiths Industries Plc Electrical connection and connectors
DE102008024342A1 (de) * 2008-05-20 2009-11-26 Sitech Sitztechnik Gmbh Vorrichtung zur Aufnahme, Führung und zum Schutz von elektrischen Leitungen, Schläuchen oder dergleichen, insbesondere zur Schlauch- und Kabelführung in Kraftfahrzeugbauteilen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA921139A (en) * 1971-02-03 1973-02-13 Amerace Esna Corporation Shielding tape grounding device for high voltage cables
US4080024A (en) * 1977-05-12 1978-03-21 Harco Corporation Underground cable connection
FR2446023A1 (fr) * 1978-07-19 1980-08-01 Mars Actel Dispositif de protection d'arret d'ecran pour cable electrique
USH379H (en) * 1986-09-24 1987-12-01 E. I. Du Pont De Nemours And Company Strain relief and ground connector for shielded cable
JP2613293B2 (ja) * 1989-04-25 1997-05-21 北川工業 株式会社 クランプ
US5098314A (en) * 1991-05-30 1992-03-24 Amp Incorporated Eyelet termination for coaxial cable
FR2683679B1 (fr) * 1991-11-12 1994-02-04 Aerospatiale Ste Nationale Indle Procede pour connecter le blindage d'au moins un cable electrique blinde a un conducteur electrique de liaison, et connexion obtenue par mise en óoeuvre de ce procede.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19716400B4 (de) * 1996-04-22 2012-08-16 Andrew Ag Erdungsanordnung für ein Übertragungsleitungskabel
DE10004671A1 (de) * 2000-02-03 2001-08-16 Daume Karin Maschinenteile Einrichtung zum elektrisch leitenden Kontaktieren eines elektrisch leitenden Teiles eines insbesondere länglichen, beispielsweise im wesentlichen zylindrischen Körpers, beispielsweise eines Rohres oder eines Kabels
DE10004671B4 (de) * 2000-02-03 2007-07-19 Karin Daume Maschinenteile Gmbh & Co. Kg Einrichtung zum elektrisch leitenden Kontaktieren eines elektrisch leitenden Teiles eines insbesondere länglichen, beispielsweise im wesentlichen zylindrischen Körpers, beispielsweise eines Rohres oder eines Kabels
FR2805667A1 (fr) * 2000-02-29 2001-08-31 Smiths Group Plc Dispositif pour etablir une connexion electrique, notamment sur des gaines de blindage
WO2013154922A1 (fr) * 2012-04-10 2013-10-17 John Mezzalingua Associates, Inc. Collet à mi-portée conducteur scindé
WO2015117743A1 (fr) * 2014-02-10 2015-08-13 Fi.Mo.Tec. S.P.A. Dispositif perfectionné pour la mise à la terre de câbles, en particulier des câbles coaxiaux
CN110112589A (zh) * 2019-06-03 2019-08-09 常州安凯特电力器件有限公司 电缆中间接头用同轴电缆接地夹及其安装方法
CN110112589B (zh) * 2019-06-03 2024-01-12 信承瑞(常州)电力技术有限公司 电缆中间接头用同轴电缆接地夹及其安装方法
KR20210045939A (ko) * 2019-10-17 2021-04-27 타이코에이엠피 주식회사 커넥터 어셈블리 및 이를 제조하는 방법

Also Published As

Publication number Publication date
GB2289579A (en) 1995-11-22
EP0683544A3 (fr) 1998-10-21
GB9409878D0 (en) 1994-07-06
GB9509856D0 (en) 1995-07-12
GB2289579B (en) 1998-01-14

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