DocumentCode
1166139
Title
Thermal Life of Varnished Glass Cloth
Author
Straka, C.J. ; Lindsay, E.W.
Volume
79
Issue
3
fYear
1960
fDate
4/1/1960 12:00:00 AM
Firstpage
58
Lastpage
63
Abstract
The suggested ASTM (American Institute for Testing Materials) and AIEE methods for the evaluation of the thermal stability of varnished glass fabric insulation are reviewed and the ASTM "Electric Breakdown Test Procedure" was found to be the better method, for it is more reproducible and gives a history of life of the varnish during thermal aging. The thermal stability of modified phenolic varnishes as measured by the ASTM breakdown procedure was substantiated by the thermal life evaluation of the same varnish in an insulation system by functional motor tests.
Keywords
Aging; Dielectrics and electrical insulation; Electric breakdown; Fabrics; Glass; History; Insulation testing; Life testing; Materials testing; Thermal stability;
fLanguage
English
Journal_Title
Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers
Publisher
ieee
ISSN
0097-2460
Type
jour
DOI
10.1109/AIEEPAS.1960.4500695
Filename
4500695
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