BR9902546A - Cable, particularly for carrying continuous high voltage current, and process to prevent the formation of micro-cavities within the insulating layer in an electrical cable impregnated with grease - Google Patents

Cable, particularly for carrying continuous high voltage current, and process to prevent the formation of micro-cavities within the insulating layer in an electrical cable impregnated with grease

Info

Publication number
BR9902546A
BR9902546A BR9902546-9A BR9902546A BR9902546A BR 9902546 A BR9902546 A BR 9902546A BR 9902546 A BR9902546 A BR 9902546A BR 9902546 A BR9902546 A BR 9902546A
Authority
BR
Brazil
Prior art keywords
impregnated
cable
formation
high voltage
insulating layer
Prior art date
Application number
BR9902546-9A
Other languages
Portuguese (pt)
Inventor
Claudio Bosisio
Gianmario Lanfranconi
Gianni Miramonti
Franco Peruzzotti
Original Assignee
Pirelli Cavi E Sistemi Spa
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 Pirelli Cavi E Sistemi Spa filed Critical Pirelli Cavi E Sistemi Spa
Publication of BR9902546A publication Critical patent/BR9902546A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/06—Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure
    • H01B9/0611—Oil-pressure cables

Landscapes

  • Organic Insulating Materials (AREA)
  • Insulated Conductors (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Cable Accessories (AREA)

Abstract

"CABO, PARTICULARMENTE PARA TRANSPORTAR CORRENTE CONTìNUA DE ALTA TENSãO, E, PROCESSO PARA EVITAR A FORMAçãO DE MICROCAVIDADES DENTRO DA CAMADA ISOLANTE EM UM CABO ELéTRICO IMPREGNADO COM MASSA". Cabo elétrico impregnado com massa, particularmente para transportar corrente contínua de alta tensão, tendo um isolamento em que, em torno de chamada isolante impregnada com um fluido isolante impregnada com um fluido isolante, uma camada contentora 'r provida compreendendo pelo menos um enrolamento de uma fita de um material elastomérico semi-condutor, que exerce uma ação efetiva de conter o fluido isolante, enquanto evitando a formação de micro-cavidades dentro da camada isolante impregnada. O material constituindo a fita tem alta resistência fisico-química para a ação de degradação dos componentes do fluido isolante, tanto no estado frio como, particularmente, em temperatura de operação do cabo."CABLE, PARTICULARLY TO TRANSPORT CONTINUOUS HIGH VOLTAGE CURRENT, AND, PROCESS TO AVOID THE FORMATION OF MICROCAVITIES INSIDE THE INSULATING LAYER IN AN ELECTRIC CABLE IMPREGNATED WITH PASTA". Mass-impregnated electrical cable, particularly for carrying high voltage direct current, having an insulation in which, around an insulating fluid impregnated with an insulating fluid impregnated with an insulating fluid, a container layer r comprising at least one winding of a tape of a semi-conductive elastomeric material, which exerts an effective action of containing the insulating fluid, while preventing the formation of micro-cavities within the impregnated insulating layer. The material constituting the tape has a high physicochemical resistance to the degradation action of the insulating fluid components, both in the cold state and, particularly, at the cable's operating temperature.

BR9902546-9A 1998-07-06 1999-07-06 Cable, particularly for carrying continuous high voltage current, and process to prevent the formation of micro-cavities within the insulating layer in an electrical cable impregnated with grease BR9902546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98112473 1998-07-06

Publications (1)

Publication Number Publication Date
BR9902546A true BR9902546A (en) 2000-03-28

Family

ID=8232223

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9902546-9A BR9902546A (en) 1998-07-06 1999-07-06 Cable, particularly for carrying continuous high voltage current, and process to prevent the formation of micro-cavities within the insulating layer in an electrical cable impregnated with grease

Country Status (9)

Country Link
EP (1) EP0971371B1 (en)
AR (1) AR019223A1 (en)
AT (1) ATE266896T1 (en)
AU (1) AU753501B2 (en)
BR (1) BR9902546A (en)
CA (1) CA2277418C (en)
DE (1) DE69917142T2 (en)
ES (1) ES2221269T3 (en)
NZ (1) NZ336468A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009356780B2 (en) * 2009-12-16 2014-07-17 Prysmian S.P.A. High voltage direct current cable having an impregnated stratified insulation
EP3015852A1 (en) 2014-10-30 2016-05-04 RWE Innogy GmbH Method for on-site x-ray inspection of a cable sealing end termination
CN105336424A (en) * 2015-12-08 2016-02-17 无锡江南电缆有限公司 Power-control composite integrated water-blocking cable for urban rail transit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621110A (en) * 1969-04-01 1971-11-16 Gen Cable Corp Field impregnated extra high voltage cable system
US3780206A (en) * 1971-11-26 1973-12-18 British Insulated Callenders Electric cables
US3935042A (en) * 1974-07-08 1976-01-27 General Electric Company Method of manufacturing corona-resistant ethylene-propylene rubber insulated power cable, and the product thereof
US4851060A (en) * 1987-08-12 1989-07-25 Essex Group, Inc. Multilayer wrapped insulated magnet wire
US5410106A (en) * 1991-04-26 1995-04-25 Fujikura Ltd. Electric feed cable for oil well pump

Also Published As

Publication number Publication date
DE69917142D1 (en) 2004-06-17
ATE266896T1 (en) 2004-05-15
EP0971371B1 (en) 2004-05-12
AR019223A1 (en) 2001-12-26
DE69917142T2 (en) 2004-11-11
CA2277418A1 (en) 2000-01-06
AU753501B2 (en) 2002-10-17
NZ336468A (en) 2000-10-27
AU3800199A (en) 2000-01-20
ES2221269T3 (en) 2004-12-16
EP0971371A1 (en) 2000-01-12
CA2277418C (en) 2009-04-07

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 06/07/1999, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved

Owner name: PIRELLI S.P.A. (IT)

Free format text: TRANSFERIDO POR INCORPORACAO DE: PIRELLI CAVI E SISTEMI S.P.A.

B25A Requested transfer of rights approved

Owner name: PIRELLI AND C. S.P.A. (IT)

Free format text: TRANSFERIDO POR INCORPORACAO DE: PIRELLI S.P.A.

B25A Requested transfer of rights approved

Owner name: PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L. (IT)

Free format text: TRANSFERIDO DE: PIRELLI AND C. S.P.A.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 06.07.2019