Is devided in two chapters. Gives in chapter I a simplified code with designations for the few most used types of aircooled rotating machinery. Provides in chapter II a complete system, which defines the methods of circulation of coolants, classifies the
IEC 60034-6:1991 history
1991IEC 60034-6:1991 Rotating electrical machines; part 6: methods of cooling (IC code)
1970IEC 60034-6:1969 Rotating electrical machines - Part 6: Methods of cooling rotating machinery