GB1515849A - Electric cables - Google Patents
Electric cablesInfo
- Publication number
- GB1515849A GB1515849A GB4190074A GB4190074A GB1515849A GB 1515849 A GB1515849 A GB 1515849A GB 4190074 A GB4190074 A GB 4190074A GB 4190074 A GB4190074 A GB 4190074A GB 1515849 A GB1515849 A GB 1515849A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sept
- dielectric
- built
- tape
- cable
- 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
Abstract
1515849 Cable insulation BICC Ltd 12 Sept 1975 [26 Sept 1974] 41900/74 Heading H1A A supertension cable in which the dielectric is at least partly built from tapes of a polyethylene or polypropylene layer 12 bonded to at least one paper tape 13 is impregnated with a fluid consisting of a polydiorganosiloxamer with a viscosity >10 cs. at 25‹ C. and a selected hydrocarbon oil in proportions selected to produce, after exposure at 85%, a swelling of 3-4¢% of the laminate at a pressure of 0À5 MN/m.<SP>2</SP>. An experimental technique is given in the Specification. The paper layers of the tape are preferably <80 Ám. thick, preferably <50 Ám in the inner part of the dielectric, which may be built in steps, and may be loaded with aluminium oxide or similar materials. Preferred fluids are polydimethylsiloxamer and alkylated benzenes, particularly dodecyl benzene.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4190074A GB1515849A (en) | 1974-09-26 | 1974-09-26 | Electric cables |
| CA235,099A CA1021415A (en) | 1974-09-13 | 1975-09-09 | Oil impregnated high voltage cable |
| NO753093A NO753093L (en) | 1974-09-13 | 1975-09-10 | |
| SE7510178A SE7510178L (en) | 1974-09-13 | 1975-09-12 | ELECTRICAL CABLE |
| IT51307/75A IT1051587B (en) | 1974-09-13 | 1975-09-12 | ELECTRIC CABLE FOR VERY HIGH VOLTAGES |
| DE19752540866 DE2540866A1 (en) | 1974-09-13 | 1975-09-13 | High voltage electric cable with laminated dielectric tape - of poly-propylene and cellulose impregnated with silicone and mineral oil |
| JP50110513A JPS51138879A (en) | 1974-09-13 | 1975-09-13 | High voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4190074A GB1515849A (en) | 1974-09-26 | 1974-09-26 | Electric cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1515849A true GB1515849A (en) | 1978-06-28 |
Family
ID=10421880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4190074A Expired GB1515849A (en) | 1974-09-13 | 1974-09-26 | Electric cables |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1515849A (en) |
-
1974
- 1974-09-26 GB GB4190074A patent/GB1515849A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950911 |