GB730289A - Improvements in and relating to electric insulating materials - Google Patents

Improvements in and relating to electric insulating materials

Info

Publication number
GB730289A
GB730289A GB6836/52A GB683652A GB730289A GB 730289 A GB730289 A GB 730289A GB 6836/52 A GB6836/52 A GB 6836/52A GB 683652 A GB683652 A GB 683652A GB 730289 A GB730289 A GB 730289A
Authority
GB
United Kingdom
Prior art keywords
inert atmosphere
varnish
baked
march
class
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
GB6836/52A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB730289A publication Critical patent/GB730289A/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
    • H01B3/30—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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulating Bodies (AREA)

Abstract

730,289. Impregnated electric insulation. BRITISH THOMSON-HOUSTON CO., Ltd. March 17, 1952 [March 15, 1951], No. 6836/52. Drawings to Specification. Class 140. Insulated objects such as coils are subjected to vacuum, immersed at atmospheric pressure in a varnish which does not require oxidation for drying, drained, and baked in an inert atmosphere, or baked, first in air, and then in an inert atmosphere. The insulation to be treated may be organic or inorganic, including mica, asbestos, glass in the form of fibres, cotton, silk, and paper. The varnish may comprise a phenol-, urea-, or melamine-aldehyde resin, or a silicone resin. The inert atmosphere may comprise nitrogen, sulphur hexafluoride, argon, helium, or carbon dioxide. Specification 322,789, [Class 140], is referred to.
GB6836/52A 1951-03-15 1952-03-17 Improvements in and relating to electric insulating materials Expired GB730289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US730289XA 1951-03-15 1951-03-15

Publications (1)

Publication Number Publication Date
GB730289A true GB730289A (en) 1955-05-18

Family

ID=22111274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6836/52A Expired GB730289A (en) 1951-03-15 1952-03-17 Improvements in and relating to electric insulating materials

Country Status (1)

Country Link
GB (1) GB730289A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291639A (en) * 1963-02-25 1966-12-13 Gen Electric Method of insulating electrical conductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291639A (en) * 1963-02-25 1966-12-13 Gen Electric Method of insulating electrical conductors

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