IEC 60172-2015,Test procedure for the determination of the temperature index of enamelled and tape wrapped winding wires.
IEC 60172 specifies, in accordance with the provisions of IEC 60216-1, a method for evaluating the temperature index of enamelled wire, varnished or unvarnished with an impregnating agent, and of tape wrapped round and rectangular wire, in air at atmospheric pressure by periodically monitoring changes in response to AC proof voltage tests.
