ZA839660B - High voltage electrical apparatus - Google Patents
High voltage electrical apparatusInfo
- Publication number
- ZA839660B ZA839660B ZA839660A ZA839660A ZA839660B ZA 839660 B ZA839660 B ZA 839660B ZA 839660 A ZA839660 A ZA 839660A ZA 839660 A ZA839660 A ZA 839660A ZA 839660 B ZA839660 B ZA 839660B
- Authority
- ZA
- South Africa
- Prior art keywords
- electrical apparatus
- high voltage
- voltage electrical
- surprisingly
- distinguished
- Prior art date
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
- H01B3/002—Inhomogeneous material in general
- H01B3/006—Other inhomogeneous material
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Electrical apparatus in which a body of insulating material is subjected to an electrical stress along its surface of at least 10<4> V/m is distinguished in that the body comprises particulate calcium carbonate dispersed in a compatible thermoplastic or elastomeric matrix based on a carbon-chain polymer. Surprisingly this inexpensive white and apparently inert filler is capable of providing compositions that have a failure voltage (according to the tracking resistance test set out in ASTM specification D-2303) of 3.0 kV and above.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB838300535A GB8300535D0 (en) | 1983-01-10 | 1983-01-10 | High voltage electrical apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA839660B true ZA839660B (en) | 1984-08-29 |
Family
ID=10536119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA839660A ZA839660B (en) | 1983-01-10 | 1983-12-28 | High voltage electrical apparatus |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0115910B1 (en) |
AT (1) | ATE26501T1 (en) |
CA (1) | CA1208000A (en) |
DE (1) | DE3463095D1 (en) |
GB (2) | GB8300535D0 (en) |
ZA (1) | ZA839660B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4634246A (en) * | 1985-04-01 | 1987-01-06 | Minnesota Mining And Manufacturing Company | Automatic focus for overhead projector |
US6002085A (en) * | 1991-11-18 | 1999-12-14 | Hitachi, Ltd. | Gas insulated switchgear |
JP3497189B2 (en) * | 1992-10-12 | 2004-02-16 | 日東電工株式会社 | Tracking resistant material and circuit board using the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1361890A (en) * | 1963-01-17 | 1964-05-29 | Silec Liaisons Elec | New polyvinyl material and its manufacturing process, articles and in particular insulated and sheathed electric cables in such a plastic material |
US3617377A (en) * | 1966-06-10 | 1971-11-02 | Fujikura Ltd | Insulation consisting of ethylene-propylene rubber composition for electric wire and cable |
AT295163B (en) * | 1968-05-11 | 1971-12-27 | Kabel Metallwerke Ghh | Process for the production of a fire-safe material from filled polymers |
DE2234430A1 (en) * | 1972-07-13 | 1974-01-24 | Dynamit Nobel Ag | PROCESS FOR THE MANUFACTURING OF PVC COMPOSITION |
GB1464367A (en) * | 1974-05-21 | 1977-02-09 | Clarke Co Ltd | Insulator compositions |
DE2644079A1 (en) * | 1976-09-30 | 1978-04-06 | Solvay Werke Gmbh | FIRESPROOF MOLDING COMPOUNDS OR PLASTICIZER FIRE-PROOF MOLDED BODIES, MOLDED PARTS, EXTRUDED PIPES, CABLES AND THE LIKE MADE FROM THEM |
AU543362B2 (en) * | 1980-03-05 | 1985-04-18 | Union Carbide Corporation | Flame retardant alkylene-alkyl acrylate copolymer |
-
1983
- 1983-01-10 GB GB838300535A patent/GB8300535D0/en active Pending
- 1983-12-28 ZA ZA839660A patent/ZA839660B/en unknown
-
1984
- 1984-01-04 CA CA000444676A patent/CA1208000A/en not_active Expired
- 1984-01-09 GB GB08400454A patent/GB2134534B/en not_active Expired
- 1984-01-09 EP EP84300116A patent/EP0115910B1/en not_active Expired
- 1984-01-09 AT AT84300116T patent/ATE26501T1/en not_active IP Right Cessation
- 1984-01-09 DE DE8484300116T patent/DE3463095D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8400454D0 (en) | 1984-02-08 |
GB2134534B (en) | 1986-04-30 |
CA1208000A (en) | 1986-07-22 |
GB8300535D0 (en) | 1983-02-09 |
EP0115910A1 (en) | 1984-08-15 |
GB2134534A (en) | 1984-08-15 |
EP0115910B1 (en) | 1987-04-08 |
DE3463095D1 (en) | 1987-05-14 |
ATE26501T1 (en) | 1987-04-15 |
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