EP0601667A1 - Elektrischer Kabel - Google Patents

Elektrischer Kabel Download PDF

Info

Publication number: EP0601667A1
Authority: EP; European Patent Office
Prior art keywords: jacket; conducting; earthing; arranged therearound; cable
Prior art date: 1992-12-10
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.): Granted

Application number

EP93203432A

Other languages

English (en)

French (fr)

Other versions

EP0601667B1 (de

Inventor

Gijsbrecht Coenraad Van Deventer

Willibrordus Franciscus Jozef Achterbosch

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.)

Twentsche Kabelfabriek BV

Original Assignee

Twentsche Kabelfabriek BV

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.)

1992-12-10

Filing date

1993-12-07

Publication date

1994-06-15

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19861613&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0601667(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1993-12-07 Application filed by Twentsche Kabelfabriek BV filed Critical Twentsche Kabelfabriek BV

1994-06-15 Publication of EP0601667A1 publication Critical patent/EP0601667A1/de

1996-10-16 Application granted granted Critical

1996-10-16 Publication of EP0601667B1 publication Critical patent/EP0601667B1/de

2013-12-07 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

Definitions

the invention relates to an electrical cable comprising: an electrically conducting core; a first semi-conducting jacket arranged therearound; an insulating jacket arranged therearound; a second semi-conducting jacket arranged therearound; an electrically conducting earthing jacket arranged therearound; a sealing jacket arranged therearound which is expandable under the influence of water; an electrically conducting outer jacket arranged therearound; and electrical conducting means which place the earthing jacket and the outer jacket locally in mutual contact.
the electrically conducting outer jacket which can be further covered by a mechanically protecting and electrically insulating protective jacket can for instance consist of aluminium foil.
the outer jacket must assume the same electrical potential as the electrically conducting earthing jacket.
the sealing jacket present between the two said jackets and expanding under the influence of water has in this respect more or less conducting properties. In conditions where short-circuiting occurs, a comparatively high voltage difference can occur between the earthing jacket and the outer jacket whereby breakdown can result. This can result in local charring or other degeneration of the expandable sealing jacket.
the expandable sealing jacket has to be retained to ensure the longitudinal water-tightness of the electrical cable in certain conditions.
the electrical conducting means which place the earthing jacket and the outer jacket locally in mutual contact.
These conducting means can be embodied in diverse ways, in particular as electrically conducting spacer elements between the earthing jacket and the outer jacket.
a very simple embodiment is that in which the conducting means comprise a conducting wire extending through the sealing jacket. From a production technology viewpoint the most simple and best controllable embodiment is that wherein the wire is wound helically.
a specific embodiment has the feature that the earthing jacket comprises at least one helically wound conductor and that the pitch of the conducting wire differs from the pitch of at least the conductor(s) of the earthing jacket placed radially the furthest outward.
a preferred embodiment of this type has the special feature that the earthing jacket comprises a number of mutually adjacent helically wound conducting wires and that the pitch thereof is opposed to the pitch of the said conducting wire. This ensures in all conditions that the said conducting wire which must bring about the contact between the earthing jacket and the outer jacket can never be pressed inward and assume a position between the helically wound conducting wires of the earthing jacket.
the sealing jacket is arranged by extrusion.
the conducting wire in particular a copper wire, lies prior to the extrusion process against the outer surface of the earthing jacket.
the surface of the wire located radially the furthest outward remains at least locally exposed.
a strip of aluminium foil is then laid in lengthwise direction against the cable and closed with adhesive round the cable with a longitudinal seam with overlapping edge zones, a local contact between the earthing jacket and the outer jacket can be ensured due to the light pressure which is used in one movement for arranging the aluminium foil immediately after the extrusion process.
the relevant material such as MDPE or HDPE cools, whereby a certain shrinkage occurs which results in a desired increased contact pressure.
the cable can be finished by arranging a protective jacket round the electrically conducting outer jacket.
the cable according to the invention comprises an electrically conducting core 1, a first semi-conducting jacket 2 arranged therearound, an insulating jacket 3 arranged therearound, a second semi-conducting jacket 4 arranged therearound, an electrically conducting earthing jacket 5, 6 arranged therearound, a sealing jacket 8 arranged therearound which expands under the influence of water, an electrically conducting outer jacket 9 arranged therearound and a copper wire 7 which is embedded in the sealing jacket 8 and which with its inner surface makes contact with the earthing jacket 5, 6 and with its outer surface makes contact with the electrically conducting outer jacket 9 consisting of aluminium foil.
the earthing jacket comprises a number of mutually adjacent, helically wound wires 10 together forming a cylindrical jacket and, arranged therearound, a strip 6 of copper foil wound with opposing pitch. It is noted that if desired this strip 6 of copper foil can be omitted.
the copper wire 7 has a pitch opposed to that of the wires 10.
the sealing jacket 8 expandable under the influence of water is arranged on the cable by extrusion during the production stage in which the cable still consists of the electrically conducting core 1 and the jackets 2, 3, 4, 5, 6 and the conducting wire 7.

Landscapes

Insulated Conductors (AREA)

EP19930203432 1992-12-10 1993-12-07 Elektrisches Kabel Expired - Lifetime EP0601667B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL9202135		1992-12-10
NL9202135A NL9202135A (nl)	1992-12-10	1992-12-10	Elektrische kabel.

Publications (2)

Publication Number	Publication Date
EP0601667A1 true EP0601667A1 (de)	1994-06-15
EP0601667B1 EP0601667B1 (de)	1996-10-16

Family

ID=19861613

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19930203432 Expired - Lifetime EP0601667B1 (de)	1992-12-10	1993-12-07	Elektrisches Kabel

Country Status (3)

Country	Link
EP (1)	EP0601667B1 (de)
DE (1)	DE69305481T2 (de)
NL (1)	NL9202135A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1995027290A1 (en) *	1994-04-05	1995-10-12	Nkt Cables A/S	A power cable having an axial and a radial water seal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1482950A (fr) *	1966-04-12	1967-06-02	Jeumont Schneider	Câble électrique basse tension
FR2385194A1 (fr) *	1977-03-22	1978-10-20	Siemens Ag	Cable blinde a courant fort, a isolation synthetique et recouvert d'une gaine composite
WO1982001785A1 (en) *	1980-11-14	1982-05-27	Stubkjaer Jens E	High voltage cable
FR2503441A1 (fr) *	1981-04-07	1982-10-08	Fabrication Cables Elect Cie G	Nouveau cable electrique

1992
- 1992-12-10 NL NL9202135A patent/NL9202135A/nl not_active Application Discontinuation
1993
- 1993-12-07 DE DE1993605481 patent/DE69305481T2/de not_active Expired - Fee Related
- 1993-12-07 EP EP19930203432 patent/EP0601667B1/de not_active Expired - Lifetime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1482950A (fr) *	1966-04-12	1967-06-02	Jeumont Schneider	Câble électrique basse tension
FR2385194A1 (fr) *	1977-03-22	1978-10-20	Siemens Ag	Cable blinde a courant fort, a isolation synthetique et recouvert d'une gaine composite
WO1982001785A1 (en) *	1980-11-14	1982-05-27	Stubkjaer Jens E	High voltage cable
FR2503441A1 (fr) *	1981-04-07	1982-10-08	Fabrication Cables Elect Cie G	Nouveau cable electrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1995027290A1 (en) *	1994-04-05	1995-10-12	Nkt Cables A/S	A power cable having an axial and a radial water seal

Also Published As

Publication number	Publication date
EP0601667B1 (de)	1996-10-16
NL9202135A (nl)	1994-07-01
DE69305481T2 (de)	1997-02-27
DE69305481D1 (de)	1996-11-21

Legal Events

Date	Code	Title	Description
1994-04-29	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1994-06-15	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE DE NL
1994-09-07	17P	Request for examination filed	Effective date: 19940630
1995-07-05	17Q	First examination report despatched	Effective date: 19950523
1996-04-18	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1996-06-18	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1996-08-30	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1996-10-16	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE DE NL
1996-11-21	REF	Corresponds to:	Ref document number: 69305481 Country of ref document: DE Date of ref document: 19961121
1997-07-04	PLBI	Opposition filed	Free format text: ORIGINAL CODE: 0009260
1997-08-20	26	Opposition filed	Opponent name: ALCATEL KABEL BETEILIGUNGS-AG Effective date: 19970624
1997-08-21	PLBF	Reply of patent proprietor to notice(s) of opposition	Free format text: ORIGINAL CODE: EPIDOS OBSO
1997-10-01	NLR1	Nl: opposition has been filed with the epo	Opponent name: ALCATEL KABEL BETEILIGUNGS-AG
1998-01-20	PLBF	Reply of patent proprietor to notice(s) of opposition	Free format text: ORIGINAL CODE: EPIDOS OBSO
1998-03-05	PLBF	Reply of patent proprietor to notice(s) of opposition	Free format text: ORIGINAL CODE: EPIDOS OBSO
1999-07-01	PLBQ	Unpublished change to opponent data	Free format text: ORIGINAL CODE: EPIDOS OPPO
1999-07-02	PLAB	Opposition data, opponent's data or that of the opponent's representative modified	Free format text: ORIGINAL CODE: 0009299OPPO
1999-08-18	R26	Opposition filed (corrected)	Opponent name: ALCATEL KABEL BETEILIGUNGS-AG Effective date: 19970624
2001-05-07	PLBQ	Unpublished change to opponent data	Free format text: ORIGINAL CODE: EPIDOS OPPO
2001-05-11	PLAB	Opposition data, opponent's data or that of the opponent's representative modified	Free format text: ORIGINAL CODE: 0009299OPPO
2001-06-27	R26	Opposition filed (corrected)	Opponent name: ALCATEL KABEL BETEILIGUNGS-AG Effective date: 19970624
2001-09-03	NLR1	Nl: opposition has been filed with the epo	Opponent name: ALCATEL KABEL BETEILIGUNGS-AG
2001-12-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20011227 Year of fee payment: 9
2001-12-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 20011231 Year of fee payment: 9
2002-01-07	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 20020107 Year of fee payment: 9
2002-12-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021231
2003-06-30	BERE	Be: lapsed	Owner name: TWENTSCHE KABELFABRIEK B.V. Effective date*: 20021231
2003-07-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030701 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030701
2003-09-01	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 20030701
2004-05-19	PLBD	Termination of opposition procedure: decision despatched	Free format text: ORIGINAL CODE: EPIDOSNOPC1
2004-09-10	PLBM	Termination of opposition procedure: date of legal effect published	Free format text: ORIGINAL CODE: 0009276
2004-09-10	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: OPPOSITION PROCEDURE CLOSED
2004-10-27	27C	Opposition proceedings terminated	Effective date: 20040604

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EP0601667A1 - Elektrischer Kabel - Google Patents

Info

Links

Images

Classifications

Definitions

Landscapes

Applications Claiming Priority (2)

Publications (2)

Family

ID=19861613

Family Applications (1)

Country Status (3)

Cited By (1)

Citations (4)

Patent Citations (4)

Cited By (1)

Also Published As

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