This standard specifies the functional assessment procedures and classifications of electrical insulation structures applied or intended to be applied to rotating electrical machines (within the scope specified in GB 755). This standard is the general rules of regulations and classification, and the subsequent standards discuss in detail the test procedures of various types of windings.
GB/T 17948-2003 history
2016GB/T 17948.7-2016 Rotating electrical machines.Functional evaluation of insulation systems.General guidelines
2003GB/T 17948-2003 Functional Evaluation of Insulation systems for rotating electrical machines-General guidelines