ASTM D3145-20 PDF

Scope: 1.1 This test method covers the determination of the thermal endurance of electrical insulating varnishes alone or in combinations with magnet wire insulation. Changes in the helical coil bond strength are used as the test criteria. The coils are made from bare aluminum or copper wire, or from filmor fiber-insulated magnet wire. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. NOTE 1—There is no similar or equivalent IEC standard. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific precautionary statement, see Section 7. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D3145-20 Referenced Document

ASTM D1711 Standard Terminology Relating to Electrical Insulation
ASTM D1932 Standard Test Method for Thermal Endurance of Flexible Electrical Insulating Varnishes
ASTM D2307 Standard Test Method for Thermal Endurance of Film-Insulated Round Magnet Wire
ASTM D2519 Standard Test Method for Bond Strength of Electrical Insulating Varnishes by the Helical Coil Test
ASTM D3251 Standard Test Method for Thermal-Aging Characteristics of Electrical Insulating Varnishes Applied Over Film-Insulated Magnet Wire
ASTM D5423 Standard Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation

2020 ASTM D3145-20 Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by Helical Coil Method
2018 ASTM D3145-18 Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by the Helical Coil Method
2013 ASTM D3145-13 Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by the Helical Coil Method
2008 ASTM D3145-08 Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by the Helical Coil Method
2003 ASTM D3145-03 Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by the Helical Coil Method
2001 ASTM D3145-01 Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by the Helical Coil Method
1997 ASTM D3145-97 Standard Test Method for Thermal Endurance of Electrical Insulating Varnishes by the Helical Coil Method