Test Methods for the Determination of Bond Strength of Impregnating Agents to an Enamelled Wire Substrate
|Publication Date:||1 April 1991|
|ICS Code (Insulating materials in general):||29.035.01|
|ICS Code (Other standards related to electricity and magnetism):||17.220.99|
This standard describes three methods of test to determine the bond strength of impregnating agents such as solvent-based varnishes and solventless resins to an enamelled wire substrate. Bond strength may be affected by cure, by test temperature, by thermal ageing, and for any impregnating agent, by the chosen type of wire enamel.
These three methods of test cover the prevailing standard practice of testing bond strength. For a certain group of materials, one of these methods may be assigned to be the referee method subject to a specification in the relevant specification sheet.