GB1458422A - Electric cables - Google Patents
Electric cablesInfo
- Publication number
- GB1458422A GB1458422A GB85274A GB85274A GB1458422A GB 1458422 A GB1458422 A GB 1458422A GB 85274 A GB85274 A GB 85274A GB 85274 A GB85274 A GB 85274A GB 1458422 A GB1458422 A GB 1458422A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tape
- tapes
- laminate
- cables
- jan
- 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
- 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
-
- 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
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
Landscapes
- Organic Insulating Materials (AREA)
- Waveguide Aerials (AREA)
Abstract
1458422 Oil filled cables BICC Ltd 7 Jan 1975 [8 Jan 1974] 852/74 Addition to 1311867 Heading H1A [Also in Division H2] An oil filled high voltage cable has an impregnated laminate tape dielectric wall in which the mobile impregnant is alkylated benzene, substantially all of the molecules of alkylated benzene having between 15 and 25 carbon atoms, and in which tapes of at least the inner part of the wall are formed of an extrusion-bonded laminate comprising a centre layer of polypropylene and two thin outer layers of cellulosic paper having high density and high Gurley Impermeability. Three examples of cables are given with various combinations of laminate tapes and plain paper tapes where steel helix 1 defines an oil duct within metallic conductor 2 over which lies bronze binding tape 3 and metallic tape screen 4, the dielectric consisting of thin layers 5 and 7 each of two paper tapes, and a main body 6 of the laminate tapes, the cables being completed by further semi-conducting screen 8, conductive bedding tape 9, lead or aluminium sheath 10, bronze tape 11 or other reinforcement and plastics oversheath 12.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB85274A GB1458422A (en) | 1974-01-08 | 1974-01-08 | Electric cables |
CA216,732A CA1016249A (en) | 1974-01-08 | 1974-12-23 | Oil-filled cable with dielectric of plastic-paper laminate |
NO744687A NO744687L (en) | 1974-01-08 | 1974-12-27 | |
ZA00748218A ZA748218B (en) | 1974-01-08 | 1974-12-30 | Electric cables |
AU77073/75A AU7707375A (en) | 1974-01-08 | 1975-01-02 | Electric cables |
IT47517/75A IT1057892B (en) | 1974-01-08 | 1975-01-03 | ELECTRIC CABLE FOR HIGH VOLTAGE |
DE19752500227 DE2500227A1 (en) | 1974-01-08 | 1975-01-04 | HIGH VOLTAGE ELECTRIC CABLE |
SE7500098A SE7500098L (en) | 1974-01-08 | 1975-01-07 | |
FR7500351A FR2257131B2 (en) | 1974-01-08 | 1975-01-07 | |
CH13275A CH577743A5 (en) | 1974-01-08 | 1975-01-08 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB85274A GB1458422A (en) | 1974-01-08 | 1974-01-08 | Electric cables |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1458422A true GB1458422A (en) | 1976-12-15 |
Family
ID=9711608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB85274A Expired GB1458422A (en) | 1974-01-08 | 1974-01-08 | Electric cables |
Country Status (10)
Country | Link |
---|---|
AU (1) | AU7707375A (en) |
CA (1) | CA1016249A (en) |
CH (1) | CH577743A5 (en) |
DE (1) | DE2500227A1 (en) |
FR (1) | FR2257131B2 (en) |
GB (1) | GB1458422A (en) |
IT (1) | IT1057892B (en) |
NO (1) | NO744687L (en) |
SE (1) | SE7500098L (en) |
ZA (1) | ZA748218B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013071945A1 (en) * | 2011-11-14 | 2013-05-23 | Abb Research Ltd | A solid direct current (dc) transmission system comprising a laminated insulation layer and method of manufacturing |
WO2013075756A1 (en) * | 2011-11-25 | 2013-05-30 | Abb Research Ltd | A direct current (dc) transmission system comprising a thickness controlled laminated insulation layer and method of manufacturing |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2002684B (en) * | 1977-08-06 | 1982-02-17 | Showa Electric Wire & Cable Co | Laminated insulating paper and oil-filled cable insulated thereby |
IT1105990B (en) * | 1977-09-29 | 1985-11-11 | Bicc Ltd | ELECTRIC CABLES FOR HIGH VOLTAGES |
IT1173045B (en) * | 1984-01-17 | 1987-06-18 | Pirelli Cavi Spa | PERFECTED FLUID OIL ELECTRIC CABLE |
-
1974
- 1974-01-08 GB GB85274A patent/GB1458422A/en not_active Expired
- 1974-12-23 CA CA216,732A patent/CA1016249A/en not_active Expired
- 1974-12-27 NO NO744687A patent/NO744687L/no unknown
- 1974-12-30 ZA ZA00748218A patent/ZA748218B/en unknown
-
1975
- 1975-01-02 AU AU77073/75A patent/AU7707375A/en not_active Expired
- 1975-01-03 IT IT47517/75A patent/IT1057892B/en active
- 1975-01-04 DE DE19752500227 patent/DE2500227A1/en not_active Withdrawn
- 1975-01-07 FR FR7500351A patent/FR2257131B2/fr not_active Expired
- 1975-01-07 SE SE7500098A patent/SE7500098L/xx unknown
- 1975-01-08 CH CH13275A patent/CH577743A5/xx not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013071945A1 (en) * | 2011-11-14 | 2013-05-23 | Abb Research Ltd | A solid direct current (dc) transmission system comprising a laminated insulation layer and method of manufacturing |
WO2013075756A1 (en) * | 2011-11-25 | 2013-05-30 | Abb Research Ltd | A direct current (dc) transmission system comprising a thickness controlled laminated insulation layer and method of manufacturing |
US9129721B2 (en) | 2011-11-25 | 2015-09-08 | Abb Research Ltd. | Direct current (DC) transmission system comprising a thickness controlled laminated insulation layer and method of manufacturing |
Also Published As
Publication number | Publication date |
---|---|
NO744687L (en) | 1975-08-04 |
FR2257131B2 (en) | 1979-01-05 |
IT1057892B (en) | 1982-03-30 |
DE2500227A1 (en) | 1975-07-17 |
FR2257131A2 (en) | 1975-08-01 |
AU7707375A (en) | 1976-07-08 |
CH577743A5 (en) | 1976-07-15 |
CA1016249A (en) | 1977-08-23 |
SE7500098L (en) | 1975-07-09 |
ZA748218B (en) | 1975-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] |