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ASTM D 7894/D7894M : 2014

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Standard Test Method for Thermal Endurance of Coating Powders Used for Integral Bus Bar Insulation Systems

Available format(s)

Hardcopy , PDF

Superseded date

02-09-2020

Language(s)

English

Published date

01-11-2014

€67.30
Excluding VAT

CONTAINED IN VOL. 10.02, 2015 Gives a procedure for evaluating thermal endurance of coating powders by determining the length of aging time at selected elevated temperatures required to achieve dielectric breakdown at room temperature at a pre-determined proof voltage.

Committee
D 09
DocumentType
Test Method
Pages
6
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

1.1This test method provides a procedure for evaluating thermal endurance of coating powders by determining the length of aging time at selected elevated temperatures required to achieve dielectric breakdown at room temperature at a pre-determined proof voltage. Thermal endurance is expressed in terms of a temperature index.

1.2This test method is applicable to insulating powders used over a substrate material of copper or aluminum.

1.3Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems is likely to result in non-conformance with the standard.

1.4This 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. Specific precautionary statements are given in Section 7.

ASTM D 1711 : 2015 : REDLINE Standard Terminology Relating to Electrical Insulation
IEEE 101A-1974 IEEE Simplified Method for Calculation of the Regression Line (Appendix to IEEE Guide for the Statistical Analysis of Thermal Life Test Data, IEEE Std 101-1972)
ASTM D 5423 : 2014 Standard Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation

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