Rotating electrical machines - Part 18: Functional evaluation of insulation systems - Section 21: Test procedures for wire-wound windings; Thermal evaluation and classification; Amendment 1
Replaces the text of subclause 3.2 (Standard procedures) by: Five standard procedures are specified in clauses 4 through 8. Procedure 1 can be considered of general applicability to both a.c. and d.c. applications and to both stators and armatures. Howev