ASTM D2519-19
- Standard Test Method for Bond Strength of Electrical Insulating Varnishes by the Helical Coil Test
- standard by ASTM International, 03/01/2019
- Category: ASTM
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1.1 This test method covers determination of the bond strength of an electrical insulating varnish when applied to a helical coil. The helical coil can be made from bare aluminum or copper wire or from film or fiber-insulated magnet wire. Helical coils made from bare aluminum or bare copper wire will yield values of bond strength for the varnish when applied to bare metal conductors. The use of film or fiber-insulated magnet wire will show values for that particular combination of insulation and varnish.
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