GB492420A - Insulation for electrical apparatus - Google Patents

Insulation for electrical apparatus

Info

Publication number
GB492420A
GB492420A GB2472137A GB2472137A GB492420A GB 492420 A GB492420 A GB 492420A GB 2472137 A GB2472137 A GB 2472137A GB 2472137 A GB2472137 A GB 2472137A GB 492420 A GB492420 A GB 492420A
Authority
GB
United Kingdom
Prior art keywords
electrical apparatus
insulation
abietic acid
oxidized
oxidized abietic
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
Application number
GB2472137A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB2472137A priority Critical patent/GB492420A/en
Publication of GB492420A publication Critical patent/GB492420A/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
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Organic Insulating Materials (AREA)

Abstract

Electrical apparatus is insulated with fibrous material impregnated with oxidized abietic acid or a composition comprising oxidized abietic acid and a cellulose derivative, for example cellulose acetate in acetone solution.
GB2472137A 1937-09-10 1937-09-10 Insulation for electrical apparatus Expired GB492420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2472137A GB492420A (en) 1937-09-10 1937-09-10 Insulation for electrical apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2472137A GB492420A (en) 1937-09-10 1937-09-10 Insulation for electrical apparatus

Publications (1)

Publication Number Publication Date
GB492420A true GB492420A (en) 1938-09-20

Family

ID=10216202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2472137A Expired GB492420A (en) 1937-09-10 1937-09-10 Insulation for electrical apparatus

Country Status (1)

Country Link
GB (1) GB492420A (en)

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