scope:

This standard applies to three-phase turbine-type machines, having rated outputs of 10 MVA and above, used as generators. Those clauses that are appropriate apply to machines used as synchronous motors or compensators. This standard supplements the basic requirements for rotating machines given in IEC Publication 34-1. This standard does not apply to those machines which are exluded from the scope of IEC Publication 34-1. Section Two of this standard gives the specific requirements common to all turbine-type machines. Section Three of this standard specifies further requirement for air-cooled turbine-type machines. Section Four of this standard specified additional requirements for hydrogen or liquid cooled turbine-type machines. Section Five of this standard gives the specific requirements for turbine-type machines driven by combustion gas-turbines.