GB974311A - Conductor insulated with asbestos-glass paper tape impregnated with epoxylated novolac resin - Google Patents

Conductor insulated with asbestos-glass paper tape impregnated with epoxylated novolac resin

Info

Publication number
GB974311A
GB974311A GB4636261A GB4636261A GB974311A GB 974311 A GB974311 A GB 974311A GB 4636261 A GB4636261 A GB 4636261A GB 4636261 A GB4636261 A GB 4636261A GB 974311 A GB974311 A GB 974311A
Authority
GB
United Kingdom
Prior art keywords
asbestos
paper tape
resin
novolac resin
glass paper
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
GB4636261A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB974311A publication Critical patent/GB974311A/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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

Paper tape formed from a mixture of glass and asbestos fibres and impregnated with an uncured epoxylated novalac resin is wound round a conductor at 60-70 DEG C. and heated to cure the resin. The ratio of asbestos to glass in the paper may be 3-4 to 1.4-6% of a polyvinyl acetate resin based on the inorganic fibres may also be present. The paper may be 0.003 inches thick. The impregnant may contain up to 10% of a polyglycidyl ether of a 1, 1, 2, 2-tetra- (hydroxyphenyl) ethane and 2-4.5% of a BF3-amine complex curing agent based on the total epoxy resin. U.S.A. Specification 2,658,885 is referred to.
GB4636261A 1960-12-29 1961-12-27 Conductor insulated with asbestos-glass paper tape impregnated with epoxylated novolac resin Expired GB974311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7940960A 1960-12-29 1960-12-29

Publications (1)

Publication Number Publication Date
GB974311A true GB974311A (en) 1964-11-04

Family

ID=22150367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4636261A Expired GB974311A (en) 1960-12-29 1961-12-27 Conductor insulated with asbestos-glass paper tape impregnated with epoxylated novolac resin

Country Status (1)

Country Link
GB (1) GB974311A (en)

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