IEC 60252.1 pdf download

IEC 60252.1 pdf download AC motor capacitors – Part 1: General – Performance, testing and rating – Safety requirements – Guide for installation and operation
1General
1.1scope and object
This International Standard applies to motor capacitors intended for connection to windings ofasynchronous motors supplied from a single-phase system having a frequency up to andincluding 100 Hz, and to capacitors to be connected to three-phase asynchronous motors sothat these motors may be supplied from a single-phase system.
This standard covers impregnated or unimpregnated capacitors having a dielectric of paper,plastic film, or a combination of both, either metallized or with metal-foil electrodes, with ratedvoltages up to and including 66o v.
Motor start capacitors will be covered by lEC 60252-2*.NOTE The following are excluded from this standard:
shunt capacitors of the self-healing type for a.c. power systems of up to and including 1 0o0 V nominal voltage(see lEc 60831-1);
shunt capacitors of non-self-healing type for a.c. power systems of up to and including 1 000 v nominal voltage(see lEC 6o931-1);
shunt capacitors for a.c. power systems having a nominal voltage above 1 000 v(see IEC 60871-1);
capacitors for induction heat-generating plants,operating at frequencies between 40 Hz and 24 000Hz (seeIEC 60110-1);
series capacitors (see lEC 60143);
coupling capacitors and capacitor dividers (see lEC 60358);
capacitors to be used in power electronic circuits (see lEC 61071-1);
small a.c. capacitors to be used for fluorescent and discharge lamps (see IEC 61048);capacitors for suppression of radio interference (IEC publication under consideration);
capacitors intended to be used in various types of electrical equipment and thus considered as components;capacitors intended for use with d.c. voltage superimposed on a.c. voltage.
The object of this standard is
a) to formulate uniform rules regarding performance, testing and rating;
b) to formulate specific safety rules;
c) to provide a guide for installation and operation.
1.2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60252. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 60252 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC 60068-2-6:1 995, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-20:1 979, Environmental testing – Part 2: Tests – Test T: Soldering
IEC 60068-2-21 :1 999, Environmental testing – Part 2-21: Tests – Test U: Robustness of terminations and integral mounting devices