BR9914019A - Método de supressão de supersaturação em cabos elétricos subterrâneos - Google Patents
Método de supressão de supersaturação em cabos elétricos subterrâneosInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/32—Filling or coating with impervious material
- H01B13/322—Filling 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.
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)
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 |
-
1999
- 1999-09-22 EP EP99949801A patent/EP1218894B1/en not_active Expired - Lifetime
- 1999-09-22 AU AU62598/99A patent/AU750403B2/en not_active Ceased
- 1999-09-22 BR BR9914019-5A patent/BR9914019A/pt not_active Application Discontinuation
- 1999-09-22 NZ NZ510726A patent/NZ510726A/xx not_active IP Right Cessation
- 1999-09-22 CA CA002345026A patent/CA2345026C/en not_active Expired - Lifetime
- 1999-09-22 KR KR1020017003642A patent/KR100574529B1/ko not_active IP Right Cessation
- 1999-09-22 AT AT99949801T patent/ATE357049T1/de active
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] |