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ASTM D 1932 : 2004

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Standard Test Method for Thermal Endurance of Flexible Electrical Insulating Varnishes

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

01-03-2004

€67.30
Excluding VAT

Committee
D 09
DocumentType
Test Method
Pages
5
ProductNote
Reconfirmed 2004
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

1.1 This test method covers the determination of the relative thermal endurance of flexible electrical insulating varnishes by determining the time necessary at elevated temperatures to decrease the dielectric breakdown of the varnish to an arbitrarily selected value when applied to a standard glass fiber fabric.

1.2 This test method does not apply to varnishes that lose a high percentage of their dielectric breakdown voltage when flexed before elevated temperature exposure as prescribed in the screening test (Section 9). Examples of such varnishes are those used for high speed armatures and laminated structures. Also, this test method is not applicable to varnishes which distort sufficiently during thermal elevated temperature exposure so that they cannot be tested using the curved electrode assembly.

1.3 Thermal endurance is expressed in terms of a temperature index.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7.

1.5 The values stated in SI units are the standard.

There is no equivalent IEC or ISO standard.

ASTM D 3145 : 2018 Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by the Helical Coil Method
ASTM D 115 : 2017 Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation
ASTM D 2756 : 2007 : R2017 Standard Test Method for Weight Loss of Electrical Insulating Varnishes

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