Dielectric Strength and Breakdown Voltage - ASTM D149 - Test Method
The purpose of this method is to set a standard testing method for finding the breakdown voltage and dielectric strength of solid electrical insulating materials with attention to their application in commercial power frequencies.
This method is used to determine the dielectric breakdown and dielectric strength of solid insulating materials using the Short-Time Test (Method A) or the Step-by-Step Test (Method B) in air or in oil.
Applications and Benefits
Lucideon provides quantitative results for the dielectric breakdown voltage and dielectric strength of electrically insulating materials in compliance with ISO 17025, 10 CFR 50 Appendix B and 10 CFR Part 21 quality management system requirements to support ASTM D149 testing requirements for industry.
Form of Results
Dielectric breakdown is generally reported in kilovolts (kV), while dielectric strength is reported in volts per mil (V/Mil). Certificates of Conformance are generated upon request.
- Surface Resistivity and Volume Resistivity – ASTM D257
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