GB8400454D0 - High voltage electrical apparatus - Google Patents

High voltage electrical apparatus

Info

Publication number
GB8400454D0
GB8400454D0 GB848400454A GB8400454A GB8400454D0 GB 8400454 D0 GB8400454 D0 GB 8400454D0 GB 848400454 A GB848400454 A GB 848400454A GB 8400454 A GB8400454 A GB 8400454A GB 8400454 D0 GB8400454 D0 GB 8400454D0
Authority
GB
United Kingdom
Prior art keywords
electrical apparatus
high voltage
voltage electrical
surprisingly
distinguished
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.)
Granted
Application number
GB848400454A
Other versions
GB2134534B (en
GB2134534A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Balfour Beatty PLC
Original Assignee
BICC PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BICC PLC filed Critical BICC PLC
Publication of GB8400454D0 publication Critical patent/GB8400454D0/en
Publication of GB2134534A publication Critical patent/GB2134534A/en
Application granted granted Critical
Publication of GB2134534B publication Critical patent/GB2134534B/en
Expired legal-status Critical Current

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)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (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.
GB08400454A 1983-01-10 1984-01-09 High voltage electrical apparatus Expired GB2134534B (en)

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 (3)

Publication Number Publication Date
GB8400454D0 true GB8400454D0 (en) 1984-02-08
GB2134534A GB2134534A (en) 1984-08-15
GB2134534B GB2134534B (en) 1986-04-30

Family

ID=10536119

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838300535A Pending GB8300535D0 (en) 1983-01-10 1983-01-10 High voltage electrical apparatus
GB08400454A Expired GB2134534B (en) 1983-01-10 1984-01-09 High voltage electrical apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838300535A Pending GB8300535D0 (en) 1983-01-10 1983-01-10 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CA1208000A (en) 1986-07-22
EP0115910A1 (en) 1984-08-15
GB2134534B (en) 1986-04-30
EP0115910B1 (en) 1987-04-08
GB8300535D0 (en) 1983-02-09
DE3463095D1 (en) 1987-05-14
GB2134534A (en) 1984-08-15
ATE26501T1 (en) 1987-04-15
ZA839660B (en) 1984-08-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980109