The aging of electrical insulation at cryogenic temperatures

Author

Forsyth, E.B.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

28

Issue

5

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

845

Lastpage

854

Abstract

The author points out that the application of superconductive conductors requires the development of electrical insulation capable of operating for many years at temperatures as low as 4 K and ranging to ~100 K for the most recent superconductors. The insulation is subjected to stresses caused by the cryogenic environment, possibly high pressures and radiation, in addition to the electrical stresses associated with service. Experimental results of aging tests for small samples are reported, and operating experiences with superconducting devices in service for about a decade are discussed

Keywords

ageing; beam handling equipment; beam handling techniques; cable insulation; electric breakdown of solids; organic insulating materials; superconducting cables; superconducting magnets; thermal stresses; 4 to 100 K; Superconducting Super Collider; Tevatron; aging tests; cryogenic temperatures; dielectric insulation; electrical insulation ageing; electrical stresses; polyethylene; polypropylene; superconducting devices; superconducting magnets; superconducting power transmission cables; Aging; Cable insulation; Conductors; Cryogenics; Dielectrics and electrical insulation; Stress; Superconducting cables; Superconducting magnets; Superconductivity; Temperature;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.237745

Filename

237745