This International Standard covers the procedures necessary to ensure the satisfactory rewinding and repair of all types and sizes of rotating electrical machines covered by IEC 60034, including: " determining cause of failure, where necessary; " determining the extent of repair, as applicable; " defining revised performance, operating and ambient conditions, if required; " reviewing the original design, and undertaking redesign, if required; " proving the quality and performance of the repaired machine. This specification does not supersede the requirements prescribed in IEC 60079-19 or elsewhere concerning the repair and overhaul for machines used in explosive atmospheres. Machines for special applications such as hermetic, submersible, nuclear, military, aviation or rail borne might have additional requirements, which are the subject of agreement between the service facility and user