BS EN 60034-18-21: 1994 IEC 34-18-21: 1992 : Rotating electrical machines — Part 18: Functional evaluation of insulation systems — Section 21: Test procedures for wire-wound windings — Thermal evaluation and classification
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This section of IEC 34-18 gives test procedures for the thermal evaluation and classification of insulation system used or proposed for use in wire-wound alternating current (a.c.) or direct current (d.c.) rotating electrical machines.
BS EN 60034-18-21: 1994 IEC 34-18-21: 1992 : Rotating electrical machines — Part 18: Functional evaluation of insulation systems — Section 21: Test procedures for wire-wound windings — Thermal evaluation and classification