GB/T 14579 - 2013 is a sub-specification for fixed capacitors for electronic equipment. This part specifies the product classification for metallized polypropylene (PP) film dielectric AC and pulse fixed capacitors, specifies electrical performance indicators such as capacitance range, Rated voltage, loss angle tangent, as well as Appearance and size requirements. At the same time, formulate test methods and inspection rules to provide unified standards for the production and mass detection of such capacitors to ensure their stable and reliable operation in AC and pulse circuits of electronic equipment.