ES434241A1 - Corona-resistant ethylene-propylene rubber insulated power cable - Google Patents
Corona-resistant ethylene-propylene rubber insulated power cableInfo
- Publication number
- ES434241A1 ES434241A1 ES434241A ES434241A ES434241A1 ES 434241 A1 ES434241 A1 ES 434241A1 ES 434241 A ES434241 A ES 434241A ES 434241 A ES434241 A ES 434241A ES 434241 A1 ES434241 A1 ES 434241A1
- Authority
- ES
- Spain
- Prior art keywords
- conductor
- propylene rubber
- thermoset
- insulation
- ethylene
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- 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
Landscapes
- Insulating Bodies (AREA)
- Conductive Materials (AREA)
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Abstract
A method of manufacturing high voltage carrying electric power cable having a conductor insulated with a multilayered covering, and the cable product thereof. The cable construction includes a primary or dielectric insulating body of thermoset ethylene-propylene rubber and a thermoset jacket about the conductor, which is substantially free of corona-prone or ionization-prone voids and separations intermediate the layers. The method comprises forming and curing the ethylene-propylene rubber compound constituting the body of the primary or dielectric insulation around the conductor and then heat treating the thermoset-cured ethylene-propylene rubber insulation prior to applying subsequent components of the multilayered covering about the conductor, including an overlying semiconductive shielding layer and a protective enclosing jacket of heat-cured thermoset polymer. The semiconductive shielding layer overlying the body or primary of dielectric insulation around the conductor, comprises a combination of a highly vapor-permeable coating of semiconductive material adhered to the surface of the underlying body of insulation and a contiguous layer of semiconductive material superimposed over the coating adhered to the insulation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US486523A US3878319A (en) | 1974-07-08 | 1974-07-08 | Corona-resistant ethylene-propylene rubber insulated power cable |
Publications (1)
Publication Number | Publication Date |
---|---|
ES434241A1 true ES434241A1 (en) | 1977-04-01 |
Family
ID=23932218
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES434241A Expired ES434241A1 (en) | 1974-07-08 | 1975-01-29 | Corona-resistant ethylene-propylene rubber insulated power cable |
ES449876A Expired ES449876A1 (en) | 1974-07-08 | 1976-07-16 | Corona-resistant ethylene-propylene rubber insulated power cable |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES449876A Expired ES449876A1 (en) | 1974-07-08 | 1976-07-16 | Corona-resistant ethylene-propylene rubber insulated power cable |
Country Status (5)
Country | Link |
---|---|
US (1) | US3878319A (en) |
CA (1) | CA1033427A (en) |
ES (2) | ES434241A1 (en) |
FR (1) | FR2278140A1 (en) |
IT (1) | IT1031078B (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4109098A (en) * | 1974-01-31 | 1978-08-22 | Telefonaktiebolaget L M Ericsson | High voltage cable |
DE2430792C3 (en) * | 1974-06-24 | 1980-04-10 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Power cable with plastic insulation and outer conductive layer |
US4069190A (en) * | 1975-05-12 | 1978-01-17 | General Electric Company | Heat resistant ethylene-propylene rubber and insulated conductor product thereof |
FI53522C (en) * | 1976-10-18 | 1978-05-10 | Nokia Oy Ab | FOERFARANDE FOER TILLVERKNING AV HOEGSPAENNINGSPLASTKABEL |
US4145567A (en) * | 1977-06-06 | 1979-03-20 | General Cable Corporation | Solid dielectric cable resistant to electrochemical trees |
US4125509A (en) * | 1977-10-17 | 1978-11-14 | General Electric Company | Flame and heat resistant ethylene-propylene rubber |
JPS6111854Y2 (en) * | 1980-01-31 | 1986-04-14 | ||
US4373048A (en) * | 1980-04-21 | 1983-02-08 | Amp Incorporated | High voltage flame retardant EPOM insulating compositions |
US4385203A (en) * | 1981-03-03 | 1983-05-24 | The Okonite Company | Sealed cable and method of manufacturing |
US4532375A (en) * | 1981-10-22 | 1985-07-30 | Ricwil, Incorporated | Heating device for utilizing the skin effect of alternating current |
US4617449A (en) * | 1981-10-22 | 1986-10-14 | Ricwil, Incorporated | Heating device for utilizing the skin effect of alternating current |
DE3509168A1 (en) * | 1985-03-14 | 1986-09-18 | Brown, Boveri & Cie Ag, 6800 Mannheim | ELECTRIC WIRE |
DE3543106A1 (en) * | 1985-12-06 | 1987-06-11 | Kabelmetal Electro Gmbh | ELECTRIC CABLE FOR USE AS WINDING STRING FOR LINEAR MOTORS |
US5274712A (en) * | 1992-03-09 | 1993-12-28 | Lindsay David S | High resistivity inner shields for audio cables and circuits |
US5339038A (en) * | 1992-07-06 | 1994-08-16 | Westinghouse Electric Corporation | Assembly for detecting and locating cable pinching |
US5574249A (en) * | 1994-07-18 | 1996-11-12 | Lindsay Audiophile Inc. | High resistivity inner shields for cabinets housing electronic circuitry |
US5654095A (en) * | 1995-06-08 | 1997-08-05 | Phelps Dodge Industries, Inc. | Pulsed voltage surge resistant magnet wire |
US6060162A (en) * | 1995-06-08 | 2000-05-09 | Phelps Dodge Industries, Inc. | Pulsed voltage surge resistant magnet wire |
WO1996042089A1 (en) * | 1995-06-08 | 1996-12-27 | Weijun Yin | Pulsed voltage surge resistant magnet wire |
US5861578A (en) * | 1997-01-27 | 1999-01-19 | Rea Magnet Wire Company, Inc. | Electrical conductors coated with corona resistant, multilayer insulation system |
NO315012B1 (en) * | 1999-06-17 | 2003-06-23 | Nexans | Electric underwater cable and heating system for electrically insulated metal pipes |
US6781052B2 (en) * | 2002-04-12 | 2004-08-24 | Nexpress Solutions, Inc. | High voltage cable EMI shield |
JP6347415B2 (en) * | 2014-11-20 | 2018-06-27 | 日立金属株式会社 | Semiconductive resin composition and power transmission cable using the same |
CN105427922B (en) * | 2015-12-18 | 2017-04-26 | 江苏上上电缆集团有限公司 | Manufacturing method of high-voltage direct current cable |
US11006484B2 (en) | 2016-05-10 | 2021-05-11 | Nvent Services Gmbh | Shielded fluoropolymer wire for high temperature skin effect trace heating |
EP3455537B1 (en) | 2016-05-10 | 2022-03-16 | Nvent Services Gmbh | Shielded wire for high voltage skin effect trace heating |
WO2018122572A1 (en) * | 2016-12-27 | 2018-07-05 | Prysmian S.P.A. | Electric cable having a protecting layer |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3060261A (en) * | 1960-03-30 | 1962-10-23 | Anaconda Wire & Cable Co | Shielded electric cable |
US3259688A (en) * | 1964-01-02 | 1966-07-05 | Gen Electric | High voltage insulated electrical cable with layer of irradiated semiconductive ethylene copolymer |
GB1104129A (en) * | 1966-04-06 | 1968-02-21 | Fujikura Ltd | Improvements relating to synthetic rubber compositions |
US3617377A (en) * | 1966-06-10 | 1971-11-02 | Fujikura Ltd | Insulation consisting of ethylene-propylene rubber composition for electric wire and cable |
GB1150690A (en) * | 1967-05-23 | 1969-04-30 | Pirelli | Improvements in or relating to Medium Voltage Electric Cables |
US3479446A (en) * | 1968-06-27 | 1969-11-18 | Anaconda Wire & Cable Co | Strand shielded cable and method of making |
US3569610A (en) * | 1969-10-15 | 1971-03-09 | Gen Cable Corp | Ethylene-propylene rubber insulated cable with cross-linked polyethylene strand shielding |
US3643004A (en) * | 1970-04-03 | 1972-02-15 | Phelps Dodge Copper Prod | Corona-resistant solid dielectric cable |
US3749817A (en) * | 1970-12-28 | 1973-07-31 | Sumitomo Electric Industries | Insulated cable having strand shielding semi-conductive layer |
US3646248A (en) * | 1971-02-22 | 1972-02-29 | Anaconda Wire & Cable Co | Electric cable |
US3748369A (en) * | 1971-03-08 | 1973-07-24 | Gen Cable Corp | Method of shielding high voltage solid dielectric power cables |
US3684821A (en) * | 1971-03-30 | 1972-08-15 | Sumitomo Electric Industries | High voltage insulated electric cable having outer semiconductive layer |
US3787255A (en) * | 1972-05-30 | 1974-01-22 | Essex International Inc | Insulated cable with sheath of controlled peel strength and method |
US3792192A (en) * | 1972-12-29 | 1974-02-12 | Anaconda Co | Electrical cable |
US3832481A (en) * | 1973-10-04 | 1974-08-27 | Borg Warner | High temperature, high pressure oil well cable |
-
1974
- 1974-07-08 US US486523A patent/US3878319A/en not_active Expired - Lifetime
-
1975
- 1975-01-22 IT IT19493/75A patent/IT1031078B/en active
- 1975-01-29 ES ES434241A patent/ES434241A1/en not_active Expired
- 1975-03-06 FR FR7506973A patent/FR2278140A1/en active Granted
- 1975-06-13 CA CA229,464A patent/CA1033427A/en not_active Expired
-
1976
- 1976-07-16 ES ES449876A patent/ES449876A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES449876A1 (en) | 1977-08-16 |
CA1033427A (en) | 1978-06-20 |
FR2278140B1 (en) | 1981-05-29 |
US3878319A (en) | 1975-04-15 |
IT1031078B (en) | 1979-04-30 |
FR2278140A1 (en) | 1976-02-06 |
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