EP1570495B1 - Cable electrique a blindage semi-conducteur de mousse - Google Patents

Cable electrique a blindage semi-conducteur de mousse Download PDF

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Publication number
EP1570495B1
EP1570495B1 EP02784773A EP02784773A EP1570495B1 EP 1570495 B1 EP1570495 B1 EP 1570495B1 EP 02784773 A EP02784773 A EP 02784773A EP 02784773 A EP02784773 A EP 02784773A EP 1570495 B1 EP1570495 B1 EP 1570495B1
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EP
European Patent Office
Prior art keywords
shield
insulation
foaming agent
insulation shield
chemical foaming
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.)
Expired - Lifetime
Application number
EP02784773A
Other languages
German (de)
English (en)
Other versions
EP1570495A1 (fr
Inventor
Frank L. Kuchta
Stephen H. Foulger
Jason Carden
Chengjun Liu
Andrew Maunder
Alberto Bareggi
Luca Balconi
Cristiana Scelza
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.)
Prysmian SpA
Original Assignee
Prysmian SpA
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Publication date
Application filed by Prysmian SpA filed Critical Prysmian SpA
Publication of EP1570495A1 publication Critical patent/EP1570495A1/fr
Application granted granted Critical
Publication of EP1570495B1 publication Critical patent/EP1570495B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01B13/14—Insulating conductors or cables by extrusion
    • H01B13/142—Insulating conductors or cables by extrusion of cellular material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/446—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylacetals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/447—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from acrylic compounds
    • 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
    • H01B9/027—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Insulated Conductors (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Claims (28)

  1. Câble d'alimentation électrique (10) comprenant :
    un conducteur (12) ;
    un blindage de conducteur semi-conducteur (14) recouvrant ledit conducteur (12) ;
    une couche d'isolation réticulée (16) formée sur ledit blindage de conducteur (14) ; caractérisé par
    un blindage d'isolation semi-conducteur réticulé expansé (18) placé sur et adhérant à ladite couche d'isolation (16).
  2. Câble d'alimentation électrique (10) selon la revendication 1, dans lequel l'interface entre ladite couche d'isolation (16) et ledit blindage d'isolation expansé (18) est sensiblement compacte.
  3. Câble d'alimentation électrique (10) selon la revendication 1, dans lequel ledit blindage d'isolation expansé (18) a une structure à cellules fermées.
  4. Câble d'alimentation électrique (10) selon la revendication 1, comprenant en outre un blindage métallique (22) recouvrant ledit blindage d'isolation expansé (18).
  5. Câble d'alimentation électrique (10) selon la revendication 1, dans lequel ledit blindage d'isolation expansé (18) est formé d'une composition expansible comprenant un agent d'expansion chimique ayant une température de décomposition supérieure à une température d'extrusion, et dans lequel ledit agent d'expansion chimique est choisi dans le groupe comprenant des agents d'expansion exothermiques, des agents d'expansion endothermiques et des agents d'expansion hybrides exothermiques/endothermiques.
  6. Câble d'alimentation électrique (10) selon la revendication 3, dans lequel ledit blindage d'isolation (18) est constitué d'un matériau de base constitué d'un éthylène-acétate réticulable choisi dans le groupe comprenant EVA, EEA et EEA.
  7. Câble d'alimentation électrique (10) selon la revendication 6, dans lequel ledit agent d'expansion chimique est constitué d'un mélange maître.
  8. Câble d'alimentation électrique (10) selon la revendication 7, dans lequel ledit mélange maître est constitué d'un élément porteur choisi dans le groupe comprenant EVA, EBA et EEA et d'un ingrédient d'expansion chimique actif.
  9. Câble d'alimentation électrique (10) selon la revendication 8, dans lequel ledit élément porteur a un indice de fluage supérieur à celui dudit blindage d'isolation (18).
  10. Câble d'alimentation électrique (10) selon la revendication 7, dans lequel ledit agent d'expansion chimique constitue d'environ 1 % à environ 8 % en poids dudit blindage d'isolation (18).
  11. Câble d'alimentation électrique (10) selon la revendication 1, dans lequel l'expansion dudit blindage d'isolation (18) entraîne une réduction de densité d'environ 10 % à environ 40 % dudit blindage d'isolation (18).
  12. Procédé de fabrication d'un câble d'alimentation électrique (10) selon la revendication 1, comprenant :
    l'avancement d'un conducteur électrique (12) à travers une tête d'équerre d'extrusion ;
    l'extrusion d'un blindage de conducteur semi-conducteur (14) sur le conducteur électrique (12) ;
    l'extrusion d'une couche d'isolation électrique réticulable (16) sur le blindage de conducteur (14) ;
    l'extrusion d'un matériau de blindage d'isolation semi-conducteur réticulable (18) qui comprend un agent d'expansion chimique sur la couche d'isolation (16) ;
    le chauffage du blindage de conducteur (14), de la couche d'isolation (16) et du blindage d'isolation (18) à une température égale ou supérieure à la température de décomposition de l'agent d'expansion chimique pour décomposer l'agent d'expansion chimique ;
    la réticulation du matériau de blindage d'isolation (18) ;
    la réticulation de la couche d'isolation (16) ;
    la réticulation du blindage de conducteur (14) ; et
    l'expansion du blindage d'isolation (18).
  13. Procédé selon la revendication 12, dans lequel l'agent d'expansion chimique a une température de décomposition et une plage de température de traitement.
  14. Procédé selon la revendication 13, dans lequel ladite étape d'extrusion est réalisée à une température inférieure à la température de décomposition de l'agent d'expansion chimique.
  15. Procédé selon la revendication 12, dans lequel ladite étape de chauffage est réalisée à une pression supérieure à la pression atmosphérique.
  16. Procédé selon la revendication 12, dans lequel l'agent d'expansion chimique a une température de décomposition et une plage de température de traitement, ladite extrusion étant réalisée à une température inférieure à la température de décomposition de l'agent d'expansion chimique ;
    et ledit chauffage du blindage de conducteur (14), de la couche d'isolation (16) et du blindage d'isolation (18) est réalisé à une pression supérieure à la pression atmosphérique.
  17. Procédé selon la revendication 12 ou 16, comprenant en outre : le refroidissement du câble d'alimentation électrique (10) après ladite étape d'expansion.
  18. Procédé selon la revendication 17, comprenant en outre l'application d'un blindage métallique (22) sur le blindage d'isolation expansé (18) après ladite étape de refroidissement.
  19. Procédé selon la revendication 15 ou 16, dans lequel ladite étape de chauffage est réalisée à une pression supérieure à environ 930 kPa (135 psi).
  20. Procédé selon la revendication 13 ou 16, dans lequel l'agent d'expansion chimique est un agent d'expansion exothermique et dans lequel le matériau de blindage d'isolation (18) comprend en outre un catalyseur qui abaisse la température de décomposition de l'agent d'expansion chimique.
  21. Procédé selon la revendication 12 ou 16, dans lequel ladite étape de chauffage est réalisée à une température d'environ 316 °C (600 °F) à environ 399 °C (750 °F).
  22. Procédé selon la revendication 12, dans lequel ladite étape de chauffage est réalisée à une température environ supérieure à 188 °C (370 °F).
  23. Procédé selon la revendication 12 ou la revendication 16, dans lequel lesdites trois étapes d'extrusion sont réalisées simultanément.
  24. Procédé selon la revendication 12 ou 16, dans lequel lesdites trois étapes de réticulation et ladite étape d'expansion sont réalisées sensiblement simultanément.
  25. Procédé selon la revendication 13 ou 17, dans lequel le blindage d'isolation (18) est maintenu dans la plage de température de traitement de l'agent d'expansion dans ladite étape de chauffage pendant au moins environ 1 minute.
  26. Procédé selon la revendication 12, dans lequel ledit agent d'expansion chimique est décomposé à une pression supérieure à la pression atmosphérique après extrusion dudit blindage d'isolation (18) sur ladite couche d'isolation (16).
  27. Procédé selon la revendication 26, dans lequel ledit agent d'expansion chimique est un agent d'expansion exothermique et dans lequel ladite pression est supérieure ou égale à environ 930 kPa (135 psi),
  28. Procédé selon la revendication 27, dans lequel un catalyseur est ajouté audit blindage d'isolation (18) avant l'extrusion sur ladite couche d'isolation (16).
EP02784773A 2002-12-11 2002-12-11 Cable electrique a blindage semi-conducteur de mousse Expired - Lifetime EP1570495B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/039416 WO2004053896A1 (fr) 2002-12-11 2002-12-11 Cable electrique a blindage semi-conducteur de mousse

Publications (2)

Publication Number Publication Date
EP1570495A1 EP1570495A1 (fr) 2005-09-07
EP1570495B1 true EP1570495B1 (fr) 2011-05-11

Family

ID=32505172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02784773A Expired - Lifetime EP1570495B1 (fr) 2002-12-11 2002-12-11 Cable electrique a blindage semi-conducteur de mousse

Country Status (6)

Country Link
EP (1) EP1570495B1 (fr)
AT (1) ATE509352T1 (fr)
AU (1) AU2002346702B2 (fr)
BR (1) BR0215488A (fr)
CA (1) CA2508862A1 (fr)
WO (1) WO2004053896A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8916776B2 (en) 2005-07-15 2014-12-23 Prysmian Cavi E Sistemi Energia S.R.L. Cable having expanded, strippable jacket
CN102439668B (zh) * 2009-07-07 2013-03-27 株式会社藤仓 发泡电线及包含该发泡电线的传输电缆
ES2720524T3 (es) * 2015-12-18 2019-07-22 Borealis Ag Proceso para la fabricación de un cable de alimentación y cable de alimentación obtenible del mismo
CN114324486B (zh) * 2022-03-16 2022-05-27 国网天津市电力公司电力科学研究院 一种电缆缓冲层的缺陷检测方法、装置、设备及存储介质

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01167822A (ja) * 1987-12-24 1989-07-03 Matsushita Electric Ind Co Ltd 液晶表示パネル

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145567A (en) * 1977-06-06 1979-03-20 General Cable Corporation Solid dielectric cable resistant to electrochemical trees
FR2725555B1 (fr) * 1994-10-11 1996-11-22 Alcatel Cable Cable de puissance
PT1042763E (pt) * 1997-12-22 2003-09-30 Pirelli Cabo electrico tendo uma camada expandida semicondutora bloqueante a agua

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01167822A (ja) * 1987-12-24 1989-07-03 Matsushita Electric Ind Co Ltd 液晶表示パネル

Also Published As

Publication number Publication date
AU2002346702B2 (en) 2008-05-22
AU2002346702A1 (en) 2004-06-30
ATE509352T1 (de) 2011-05-15
WO2004053896A1 (fr) 2004-06-24
EP1570495A1 (fr) 2005-09-07
BR0215488A (pt) 2004-12-28
CA2508862A1 (fr) 2004-06-24

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