EVS-EN 60034-18-22:2002

This section of IEC 34-18 gives test procedures for the thermal evaluation and classification of changes and insulation component substitutions in insulation systems used or proposed for use in a proven insulation system used in wire-wound windings. The test procedures are comparative in that the performance of a candidate system is compared to that of a reference system which has previously been proved by experience or has been evaluated by one of the procedures given in IEC 34-18-21 and to which the change or substitution is intended.