BR9914019A - Método de supressão de supersaturação em cabos elétricos subterrâneos - Google Patents

Método de supressão de supersaturação em cabos elétricos subterrâneos

Info

Publication number
BR9914019A
BR9914019A BR9914019-5A BR9914019A BR9914019A BR 9914019 A BR9914019 A BR 9914019A BR 9914019 A BR9914019 A BR 9914019A BR 9914019 A BR9914019 A BR 9914019A
Authority
BR
Brazil
Prior art keywords
cable
dielectric enhancement
enhancement fluid
dielectric
diluent
Prior art date
Application number
BR9914019-5A
Other languages
English (en)
Inventor
Glen J Bertini
Original Assignee
Utilx Corp
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
Priority claimed from US09/400,739 external-priority patent/US6162491A/en
Application filed by Utilx Corp filed Critical Utilx Corp
Publication of BR9914019A publication Critical patent/BR9914019A/pt

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06Insulating conductors or cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/32Filling or coating with impervious material
    • H01B13/322Filling or coating with impervious material the material being a liquid, jelly-like or viscous substance

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Insulating Materials (AREA)
  • Ropes Or Cables (AREA)
  • Testing Relating To Insulation (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Insulated Conductors (AREA)

Abstract

"MéTODO DE SUPRESSãO DE SUPERSATURAçãO EM CABOS ELéTRICOS SUBTERRâNEOS" Um método para aperfeiçoar as propriedades dielétricas de um cabo elétrico tendo um condutor de fio central encerrado em um isolamento polimérico. O cabo define um espaço vazio intersticial (V~ 1~) entre os fios do condutor. O volume (V~ 2~) de um fluido de aperfeiçoamento dielétrico requerido para ser absorvido pelo cabo de modo a atingir um nível predeterminado de aperfeiçoamento dielétrico é determinado. A razão de (V~ 1~/V~ 2~) é computada. Se a razão de (V~ 1~/V~ 2~) for maior do que uma razão máxima de 1.4, neste caso uma quantidade de fluido de aperfeiçoamento dielétrico é diluído com uma quantidade suficiente de um diluente a fim de produzir uma mistura de diluente e de fluido de aperfeiçoamento dielétrico, de tal forma que quando o volume (V~ 1~) da mistura é suprido para o interior do cabo, o cabo terá sido suprido com um volume (V~ 3~) do fluido de aperfeiçoamento dielétrico dentro da mistura de tal forma que (V~ 3~/V~ 2~) passa a ser menor do que 1.4. O diluente é substancialmente insolúvel no isolamento polimérico, tem uma viscosidade inicial suficientemente baixa para permitir introdução no interior do cabo, e é miscível com o fluido de aperfeiçoamento dielétrico.
BR9914019-5A 1998-09-22 1999-09-22 Método de supressão de supersaturação em cabos elétricos subterrâneos BR9914019A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10138198P 1998-09-22 1998-09-22
US09/400,739 US6162491A (en) 1998-09-22 1999-09-21 Method of suppressing supersaturation in underground electrical cables
PCT/US1999/022025 WO2000017891A1 (en) 1998-09-22 1999-09-22 Method of suppressing supersaturation in underground electrical cables

Publications (1)

Publication Number Publication Date
BR9914019A true BR9914019A (pt) 2001-07-03

Family

ID=26798178

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9914019-5A BR9914019A (pt) 1998-09-22 1999-09-22 Método de supressão de supersaturação em cabos elétricos subterrâneos

Country Status (7)

Country Link
EP (1) EP1218894B1 (pt)
KR (1) KR100574529B1 (pt)
AT (1) ATE357049T1 (pt)
AU (1) AU750403B2 (pt)
BR (1) BR9914019A (pt)
CA (1) CA2345026C (pt)
NZ (1) NZ510726A (pt)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372988A (en) * 1979-01-22 1983-02-08 Cable Technology Laboratories, Inc. Extension of cable life
US4299713A (en) * 1979-07-19 1981-11-10 National Distillers And Chemical Corp. Electrical tree and water tree resistant polymer compositions
US4766011A (en) * 1986-12-29 1988-08-23 Dow Corning Corporation Restoring stranded conductor electrical distribution cable
US4961961A (en) * 1987-04-23 1990-10-09 Dow Corning Corporation Silicone water block for electrical cable
US5200234A (en) * 1991-12-16 1993-04-06 Dow Corning Corporation Method for restoring underground electrical cable
US5372841A (en) * 1993-04-20 1994-12-13 Dow Corning Corporation Method for enhancing the dielectrical strength of cable using a fluid mixture

Also Published As

Publication number Publication date
CA2345026A1 (en) 2000-03-30
CA2345026C (en) 2008-09-30
EP1218894B1 (en) 2007-03-14
KR20010079890A (ko) 2001-08-22
ATE357049T1 (de) 2007-04-15
AU6259899A (en) 2000-04-10
AU750403B2 (en) 2002-07-18
KR100574529B1 (ko) 2006-05-02
EP1218894A4 (en) 2005-04-13
NZ510726A (en) 2002-09-27
EP1218894A1 (en) 2002-07-03

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]