IEC 60252-2:2010 applies to motor start capacitors intended for connection to windings of asynchronous motors supplied from a single-phase system having the frequency of the mains. Covers impregnated or unimpregnated metallized motor start capacitors having a dielectric of paper or plastic film, or a combination of both and electrolytic motor start capacitors with non-solid electrolyte, with rated voltages up to and including 660 V. The main changes with respect to the previous edition are: - definition of segmented film capacitors; - clearer definition of the purpose of d.c. conditioning in destruction test.