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ASTM D3251-04

Historical Revision

Standard Test Method for Thermal Endurance Characteristics of Electrical Insulating Varnishes Applied Over Film-Insulated Magnet Wire

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1.1 This test method covers the determination of the thermal endurance characteristics of electrical insulating varnishes and film-insulated magnet wire in combination.

1.2 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.

Note 1

This test method is equivalent to IEC 60172.


Different combinations of varnishes and film-insulated magnet wire behave differently when exposed to elevated temperatures. This includes different varnishes tested with the same film-insulated magnet wire and a single varnish tested with different film-insulated magnet wire.

This test method is used to determine the effect on the electrical properties of a varnish applied to film-insulated magnet wire when the combination is exposed to prescribed elevated temperatures.

SDO ASTM: ASTM International
Document Number D3251
Publication Date March 1, 2004
Language en - English
Page Count 2
Revision Level 04
Supercedes
Committee D09.01
Publish Date Document Id Type View
Jan. 1, 2019 D3251-19 Revision
March 1, 2004 D3251-04 Revision
Oct. 1, 2003 D3251-03 Revision
Oct. 10, 1999 D3251-99 Revision
April 1, 2013 D3251-04R13 Reaffirmation
Oct. 1, 2009 D3251-04R09 Reaffirmation