This part of IEC 1248 is a generic specification which prescribes the compliance requirements for manufacturers of transformers and inductors for use in electronic equipment in order to obtain capability approval in accordance with 11.7 of QC 001002, and the component test schedules to be used for the assessment of that capability. It applies to components, including polyphase types, that are primarily intended for use in electronic and telecommunication equipment. This specification also prescribes requirements for marking, delayed delivery and ordering, and lists standard ratings and characteristics. In addition, it specifies how quality conformance testing should be carried out on ordered components. NOTE – The transformers and inductors that are the subject of this specification may include other components essential to the operation of the device, e.g. capacitors associated with constant voltage transformers and resonated windings.