GB521296A - An improved manufacture of insulated electrical conductors - Google Patents
An improved manufacture of insulated electrical conductorsInfo
- Publication number
- GB521296A GB521296A GB32947/38A GB3294738A GB521296A GB 521296 A GB521296 A GB 521296A GB 32947/38 A GB32947/38 A GB 32947/38A GB 3294738 A GB3294738 A GB 3294738A GB 521296 A GB521296 A GB 521296A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductor
- oil
- insulated
- oils
- iso
- 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
- H01B3/44—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
- 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)
- Lubricants (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
521,296. Electric cables. STANDARD OIL DEVELOPMENT CO. Nov. 12, 1938, No. 32947. Convention date, Feb. 25. [Class 36] [Also in Group IV] Electric cables are insulated by means of low pour-point hydrocarbon oils made by further polymerization by known methods of polymers of normally gaseous iso-olefines containing 8-20 carbon atoms such as di- and tri-isobutylene or copolymers of such initial polymers and normal or iso-olefines; the former yield oils of low and the latter oils of high viscosity index. Tables are given showing the properties of the products prepared from di-isobutylene under various conditions. An electric conductor may be insulated by a spiral wrapping of paper, Fig. 1, impregnated with the oil; or the dry paper may be wrapped around the conductor and the hot oil is then forced in from one end after the air between the lead sheath and the conductor has been evacuated. Alternatively, Fig. 2, the conductor 1 is spaced from its outer sheath 2 by spacing-means 4 and the space between is filled with the oil.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US192480A US2274031A (en) | 1938-02-25 | 1938-02-25 | Insulated electrical conductor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB521296A true GB521296A (en) | 1940-05-17 |
Family
ID=22709843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32947/38A Expired GB521296A (en) | 1938-02-25 | 1938-11-12 | An improved manufacture of insulated electrical conductors |
Country Status (3)
Country | Link |
---|---|
US (1) | US2274031A (en) |
FR (1) | FR846228A (en) |
GB (1) | GB521296A (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519034A (en) * | 1944-09-07 | 1950-08-15 | Standard Oil Dev Co | Low temperature polymerization of mixed olefins with alclbr catalyst |
US2443974A (en) * | 1944-11-02 | 1948-06-22 | Gen Cable Corp | Insulated electrical cable |
US2534095A (en) * | 1948-03-31 | 1950-12-12 | Standard Oil Dev Co | Hydrocarbon copolymers and use thereof as lube oil additive |
NL78456C (en) * | 1949-12-23 | |||
US2719182A (en) * | 1951-12-28 | 1955-09-27 | Sprague Electric Co | Dielectric compositions |
US2711498A (en) * | 1953-03-06 | 1955-06-21 | Sprague Electric Co | Electrical capacitors |
US2782134A (en) * | 1953-06-30 | 1957-02-19 | John E Fast & Co | Impregnated dielectric material |
US3206563A (en) * | 1963-02-25 | 1965-09-14 | Sperry Rand Corp | Multi-position electric switch with movable cam contact means |
GB1076940A (en) * | 1963-11-19 | 1967-07-26 | Sumitomo Electric Industries | Improvements in or relating to electric cables |
US3271506A (en) * | 1964-03-25 | 1966-09-06 | Siemens Ag | Coaxial high-frequency cable with internal spacers |
US3391243A (en) * | 1965-07-26 | 1968-07-02 | Westinghouse Electric Corp | Enclosed electric power transmission conductor |
US3643005A (en) * | 1970-08-05 | 1972-02-15 | Lyle H Mathews | Conduit with spacer |
FR2129970B1 (en) * | 1971-03-24 | 1974-05-31 | Comp Generale Electricite | |
US4896701A (en) * | 1988-08-25 | 1990-01-30 | Young Donald W | Underground pipe support and spacer |
US6307156B1 (en) * | 1997-05-02 | 2001-10-23 | General Science And Technology Corp. | High flexibility and heat dissipating coaxial cable |
-
1938
- 1938-02-25 US US192480A patent/US2274031A/en not_active Expired - Lifetime
- 1938-11-12 GB GB32947/38A patent/GB521296A/en not_active Expired
- 1938-11-18 FR FR846228D patent/FR846228A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2274031A (en) | 1942-02-24 |
FR846228A (en) | 1939-09-12 |
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