GB436295A - Improvements in electric cables - Google Patents
Improvements in electric cablesInfo
- Publication number
- GB436295A GB436295A GB1051834A GB1051834A GB436295A GB 436295 A GB436295 A GB 436295A GB 1051834 A GB1051834 A GB 1051834A GB 1051834 A GB1051834 A GB 1051834A GB 436295 A GB436295 A GB 436295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impermeable
- sheath
- enclosed
- cores
- layer
- 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
- 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
- H01B3/42—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 polyesters; polyethers; polyacetals
-
- 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
- H01B3/307—Other macromolecular compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/06—Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure
- H01B9/0611—Oil-pressure cables
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Cable Accessories (AREA)
Abstract
436,295. Cables. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and HUNTER, P. V., Hamilton House, Victoria Embankment, London. April 6, 1934, No. 10518. [Class 36] To prevent draining of the impregnating compound from the impregnated dielectric into the gas-space in a cable of the kind comprising one or more cores having impregnated insulation and in which a space containing gas is provided between the insulated cores and the cable sheath, each insulated core is enclosed in a close fitting layer of flexible non-metallic material which is impermeable to the impregnating medium and the cores are formed with a non-circular cross-section so that expansion of the impregnating compound is accommodated by a bending, rather than a stretching, of the impermeable non-metallic layer. The impermeable layer may be formed from a cellulose derivative, an olefine polysulphide product, a pitch, a phenolic or other resin, or a lapping of oiled silk. In the construction shown, a conductor 1 of elliptical cross-section has a layer of impregnated paper insulation 2 which is enclosed in an impermeable layer 3. The core thus formed is wound with a conductive strip 4 and is enclosed in a circular lead sheath 5, the spaces 6 between the core and sheath being filled with air, nitrogen, or helium under atmospheric or higher pressure. In another construction, three cores having impermeable layers and wound with conductive strip are laid up with loose fillers and enclosed in an over size lead sheath, the free space within the sheath being filled with air. Specifications 358,190 and 361,930 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1051834A GB436295A (en) | 1934-04-06 | 1934-04-06 | Improvements in electric cables |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1051834A GB436295A (en) | 1934-04-06 | 1934-04-06 | Improvements in electric cables |
Publications (1)
Publication Number | Publication Date |
---|---|
GB436295A true GB436295A (en) | 1935-10-07 |
Family
ID=9969293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1051834A Expired GB436295A (en) | 1934-04-06 | 1934-04-06 | Improvements in electric cables |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB436295A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE943599C (en) * | 1940-11-02 | 1956-05-24 | Felten & Guilleaume Carlswerk | High-voltage pressure cable system with a cable arranged in a pressure pipe |
-
1934
- 1934-04-06 GB GB1051834A patent/GB436295A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE943599C (en) * | 1940-11-02 | 1956-05-24 | Felten & Guilleaume Carlswerk | High-voltage pressure cable system with a cable arranged in a pressure pipe |
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