Significance and Use
Bond strength values obtained by flexural tests can provide information with regard to the bond strength of a particular self-bonding outer coating in combination with a particular round film-insulated magnet wire when measured under conditions described in this test method.
1.1 These test methods cover procedures for testing film-insulated magnet wire that is used in electrical apparatus. These test methods are intended primarily for the evaluation of the electrical insulating materials used. The intent is that these test methods be used, except where modified, by individual specifications for particular applications.
1.2 These test methods present different procedures for evaluating given properties of round, rectangular or square, copper or aluminum film-insulated magnet wire.
1.3 The values stated in inch-pound units are the standard. The SI units in parentheses are provided for information only.
1.4 The test methods appear in the following sections:
|Burnout (AC Overload Resistance)||13-21|
|Coefficient of Friction||29-37|
|Continuity, DC High Voltage||38-45|
|Continuity, DC Low Voltage||46-53|
|Completeness of Cure||54-60|
|Cut-Through Temperature (Thermoplastic Flow)||61-68|
|Dielectric Breakdown AC Voltage||69-75|
|Dielectric Breakdown AC Voltage after Bending||76-82|
|Dielectric Breakdown AC Voltage at Elevated Temperatures||83-89|
|Dielectric Breakdown AC Voltage after Conditioning in Refrigerant Atmosphere||90-99|
|Dissipation Factor Measurement||107-114|
|Film Adherence and Flexibility||141-148|
|a) Elastic Ratio||152|
|b) Low Stress Elongation||153|
|c) Spring Back||154-155|
|Scrape Resistance, Unidirectional||170-177|
|Resistance to Insulating Liquids and Hydrolytic Stability||186-195|
1.5 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. Specific hazard statements are given in 9.5, 19.1, 19.3, 19.8, 52.1, 58, 59.1, 74.1, 112.1, 135.4, and 182.3 .Note 1—This test method is related to IEC 60851. Since both methods contain multiple test procedures, many procedures are technically equivalent while others differ significantly.