SIST EN 60252-2:2011
AC motor capacitors - Part 2: Motor start capacitors (IEC 60252-2:2010)
AC motor capacitors - Part 2: Motor start capacitors (IEC 60252-2:2010)
Ta del IEC 60252 velja za zaganjalne kondenzatorje, namenjene povezavi z navitji asinhronih motorjev, napajanih iz enofaznega sistema, ki imajo frekvenco javnega omrežja. Ta standard zajema zaganjalne kondenzatorje motorjev, ki so ali niso impregnirani in ki imajo dielektrik iz papirja ali plastičnega filma ali kombinacije obeh, ter elektrolitske zaganjalne kondenzatorje, ki nimajo trdnih elektrolitov, z ocenjeno napetostjo do in vključno 660 V.
Wechselspannungsmotorkondensatoren - Teil 2: Motoranlaufkondensatoren (IEC 60252-2:2010)
Condensateurs des moteurs à courant alternatif - Partie 2: Condensateurs de démarrage de moteurs (CEI 60252-2:2010)
La CEI 60252-2:2010 s'applique aux condensateurs de démarrage destinés à être raccordés aux enroulements des moteurs asynchrones alimentés par un réseau monophasé dont la fréquence est celle du réseau. La présente norme couvre les condensateurs de démarrage métallisés imprégnés ou non, ayant un diélectrique en papier, film plastique ou une combinaison des deux, et les condensateurs électrolytiques de démarrage à électrolyte non solide, pour une tension assignée n'excédant pas 660 V. Les principales modifications par rapport à l'édition précédente sont: - définition des condensateurs à film segmenté; - définition plus claire du conditionnement en courant continu en l'essai de destruction.
Izmenični kondenzatorji za motorje - 2. del: Zaganjalni kondenzatorji (IEC 60252-2:2010)
Ta del IEC 60252 velja za zaganjalne kondenzatorje, namenjene povezavi z navitji asinhronih motorjev, napajanih iz enofaznega sistema, ki imajo frekvenco javnega omrežja.
Ta standard zajema zaganjalne kondenzatorje motorjev, ki so ali niso impregnirani in ki imajo dielektrik iz papirja ali plastičnega filma ali kombinacije obeh, ter elektrolitske zaganjalne kondenzatorje, ki nimajo trdnih elektrolitov, z ocenjeno napetostjo do in vključno 660 V.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60252-2:2011
01-april-2011
1DGRPHãþD
SIST EN 60252-2:2003
,]PHQLþQLNRQGHQ]DWRUML]DPRWRUMHGHO =DJDQMDOQLNRQGHQ]DWRUML ,(&
AC motor capacitors - Part 2: Motor start capacitors (IEC 60252-2:2010)
Wechselspannungsmotorkondensatoren - Teil 2: Motoranlaufkondensatoren (IEC 60252-
2:2010)
Condensateurs des moteurs à courant alternatif - Partie 2: Condensateurs de démarrage
de moteurs (CEI 60252-2:2010)
Ta slovenski standard je istoveten z: EN 60252-2:2011
ICS:
31.060.70 0RþQRVWQLNRQGHQ]DWRUML Power capacitors
SIST EN 60252-2:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 60252-2:2011
---------------------- Page: 2 ----------------------
SIST EN 60252-2:2011
EUROPEAN STANDARD
EN 60252-2
NORME EUROPÉENNE
February 2011
EUROPÄISCHE NORM
ICS 31.060.30; 31.060.70 Supersedes EN 60252-2:2003
English version
AC motor capacitors -
Part 2: Motor start capacitors
(IEC 60252-2:2010)
Condensateurs des moteurs à courant Wechselspannungsmotorkondensatoren -
alternatif - Teil 2: Motoranlaufkondensatoren
Partie 2: Condensateurs de démarrage de (IEC 60252-2:2010)
moteurs
(CEI 60252-2:2010)
This European Standard was approved by CENELEC on 2011-01-19. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60252-2:2011 E
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SIST EN 60252-2:2011
EN 60252-2:2011 - 2 -
Foreword
The text of document 33/476/FDIS, future edition 2 of IEC 60252-2, prepared by IEC TC 33, Power
capacitors, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60252-2 on 2011-01-19.
This European Standard supersedes EN 60252-2:2003.
The main changes with respect to EN 60252-2:2003 are listed below:
– definition of segmented film capacitors;
– clearer definition of the purpose of d.c. conditioning in destruction test.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-10-19
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2014-01-19
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60252-2:2010 was approved by CENELEC as a European
Standard without any modification.
__________
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SIST EN 60252-2:2011
- 3 - EN 60252-2:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60062 - Marking codes for resistors and capacitors EN 60062 -
IEC 60068-2 Series Environmental testing - EN 60068-2 Series
Part 2: Tests
IEC 60068-2-6 - Environmental testing - EN 60068-2-6 -
Part 2-6: Tests - Test Fc: Vibration
(sinusoidal)
IEC 60068-2-14 - Environmental testing - EN 60068-2-14 -
Part 2-14: Tests - Test N: Change of
temperature
IEC 60068-2-20 - Environmental testing - EN 60068-2-20 -
Part 2-20: Tests - Test T: Test methods for
solderability and resistance to soldering heat
of devices with leads
IEC 60068-2-21 - Environmental testing - EN 60068-2-21 -
Part 2-21: Tests - Test U: Robustness of
terminations and integral mounting devices
IEC 60068-2-78 2001 Environmental testing - EN 60068-2-78 2001
Part 2-78: Tests - Test Cab: Damp heat,
steady state
IEC 60112 - Method for the determination of the proof and EN 60112 -
the comparative tracking indices of solid
insulating materials
IEC 60309-1 1999 Plugs, socket-outlets and couplers for EN 60309-1 1999
industrial purposes -
Part 1: General requirements
IEC 60529 - Degrees of protection provided by enclosures - -
(IP Code)
IEC 60695-2-10 2000 Fire hazard testing - EN 60695-2-10 2001
Part 2-10: Glowing/hot-wire based test
methods - Glow-wire apparatus and common
test procedure
IEC 60695-2-11 2000 Fire hazard testing - EN 60695-2-11 2001
Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test method
for end-products
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SIST EN 60252-2:2011
EN 60252-2:2011 - 4 -
Publication Year Title EN/HD Year
ISO 4046 - Paper, board, pulp and related terms - - -
Vocabulary
---------------------- Page: 6 ----------------------
SIST EN 60252-2:2011
IEC 60252-2
®
Edition 2.0 2010-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AC motor capacitors –
Part 2: Motor start capacitors
Condensateurs des moteurs à courant alternatif –
Partie 2: Condensateurs de démarrage de moteurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 31.060.30; 31.060.70 ISBN 978-2-88912-293-6
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN 60252-2:2011
– 2 – 60252-2 Ó IEC:2010
CONTENTS
FOREW ORD . 4
1 Sc o pe . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Service conditions . 10
4.1 Normal service conditions . 10
4.2 Preferred tolerances on capacitance . 10
5 Self-healing motor start capacitors . 10
5.1 Quality requirements and tests . 10
5.1.1 Test requirements . 10
5.1.2 Nature of tests . 11
5.1.3 Type tests . 11
5.1.4 Routine tests . 13
5.1.5 Tangent of the loss-angle measurement . 13
5.1.6 Visual examination . 13
5.1.7 Voltage test between the terminals . 14
5.1.8 Voltage test between terminals and case . 14
5.1.9 Capacitance measurement . 14
5.1.10 Check of dimensions . 14
5.1.11 Mechanical tests . 15
5.1.12 Sealing test . 17
5.1.13 Endurance test . 17
5.1.14 Damp heat test . 19
5.1.15 Self-healing test . 19
5.1.16 Destruction test . 19
5.1.17 Resistance to heat, fire and tracking . 22
5.2 Overloads . 23
5.2.1 Maximum permissible voltage . 23
5.2.2 Maximum permissible current . 23
5.2.3 Maximum permissible reactive output . 23
5.3 Safety requirements . 23
5.3.1 Creepage distances and clearances . 23
5.3.2 Terminals and connecting cables . 24
5.3.3 Earth connections . 24
5.3.4 Discharge devices . 25
5.3.5 Pollution . 25
5.4 Marking . 25
6 Electrolytic motor start capacitors . 26
6.1 Quality requirements and tests . 26
6.1.1 Test requirements . 26
6.1.2 Nature of tests . 26
6.1.3 Type tests . 27
6.1.4 Routine tests . 29
6.1.5 Visual examination . 29
6.1.6 Voltage test between the terminals . 29
6.1.7 Voltage test between terminals and case . 29
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SIST EN 60252-2:2011
60252-2 Ó IEC:2010 – 3 –
6.1.8 Capacitance and power factor measurement . 30
6.1.9 Check of dimensions . 31
6.1.10 Mechanical tests . 31
6.1.11 Sealing test . 33
6.1.12 Endurance test . 33
6.1.13 Damp heat test . 35
6.1.14 Pressure relief test . 35
6.1.15 Resistance to heat, fire and tracking . 36
6.2 Overloads . 36
6.2.1 Maximum permissible voltage . 36
6.2.2 Maximum permissible current . 36
6.2.3 Maximum permissible reactive output . 37
6.3 Safety requirements . 37
6.3.1 Creepage distances and clearances . 37
6.3.2 Terminals and connecting cables . 37
6.3.3 Earth connections . 37
6.3.4 Discharge devices . 38
6.3.5 Pollution . 38
6.4 Marking . 38
7 Guidance for installation and operation . 39
7.1 General . 39
7.2 Choice of rated voltage . 39
7.2.1 Measurement of working voltage . 39
7.2.2 Influence of capacitance . 40
7.3 Checking capacitor temperature . 40
7.3.1 Choice of maximum permissible capacitor operating temperature . 40
7.3.2 Choice of minimum permissible capacitor operating temperature . 40
7.4 Checking transients . 40
7.5 Storage of electrolytic capacitors . 41
Annex A (normative) Test voltage. 42
Figure 1 – Test apparatus for d.c. conditioning . 20
Figure 2 – Test apparatus for a.c. destruction test . 20
Figure 3 – Arrangement to produce the variable inductor L in Figure 2 . 21
Figure 4 – Test circuit for measurement of capacitance and power factor . 30
Table 1 – Type test schedule . 12
Table 2 – Test voltages . 14
Table 3 – Torque . 15
Table 4 – Minimum creepage distances and clearances . 25
Table 5 – Type test schedule . 28
Table 6 – Test voltages . 29
Table 7 – Torque . 32
Table 8 – Minimum creepage distances and clearances . 38
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SIST EN 60252-2:2011
– 4 – 60252-2 Ó IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AC MOTOR CAPACITORS –
Part 2: Motor start capacitors
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60252-2 has been prepared by IEC technical committee 33: Power
capacitors and their applications.
This second edition cancels and replaces the first edition of IEC 60252-2, published in 2003,
and constitutes a technical revision.
The main changes with respect to the previous edition are listed below:
– definition of segmented film capacitors;
– clearer definition of the purpose of d.c. conditioning in destruction test.
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SIST EN 60252-2:2011
60252-2 Ó IEC:2010 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
33/476/FDIS 33/480/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 60252 series, published under the general title AC motor capacitors,
can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST EN 60252-2:2011
– 6 – 60252-2 Ó IEC:2010
AC MOTOR CAPACITORS –
Part 2: Motor start capacitors
1 Scope
This part of IEC 60252 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.
This standard 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.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60062, Marking codes for resistors and capacitors
IEC 60068-2 (all parts), Environmental testing – Part 2: Tests
IEC 60068-2-6, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-14, Environmental testing – Part 2-14: Tests – Test N: Change of temperature
IEC 60068-2-20, Environmental testing – Part 2-20: Tests – Test T: Soldering
IEC 60068-2-21, Environmental testing – Part 2-21: Tests – Test U: Robustness of
terminations and integral mounting devices
IEC 60068-2-78:2001, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
IEC 60112, Method for determining the comparative and the proof tracking indices of solid
insulating materials under moist conditions
IEC 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes – Part 1:
General requirements
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60695-2-10:2000, Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods
– Glow-wire apparatus and common test procedure
IEC 60695-2-11:2000, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods
– Glow-wire flammability test method for end-products
ISO 4046, Paper, board, pulps and related terms – Vocabulary
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SIST EN 60252-2:2011
60252-2 Ó IEC:2010 – 7 –
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
motor running capacitor
power capacitor which, when used in conjunction with an auxiliary winding of a motor, assists
the motor to start and improves the torque under running conditions
NOTE The running capacitor is usually connected permanently to the motor winding and remains in circuit
throughout the running period of the motor. During the starting period, if it is in parallel with the starting capacitor,
it helps to start the motor.
3.2
motor starting capacitor
power capacitor which provides a leading current to an auxiliary winding of a motor and which
is switched out of circuit once the motor is running
3.3
metal foil capacitor
capacitor, whose electrodes consist of metal foils or strips separated by a dielectric
3.4
metallized capacitor
capacitor, in which the electrodes consist of a metallic deposit on the dielectric
3.5
self-healing capacitor
capacitor, whose electrical properties, after local breakdown of the dielectric, are rapidly and
essentially self-restored
3.6
segmented film capacitor
metallised capacitor with a repeating pattern on the metallic deposit on at least one layer,
designed to isolate sections of the capacitor in the event of localised faults occurring in the
dielectric
3.7
discharge device of a capacitor
device which may be incorporated in a capacitor, capable of reducing the voltage between the
terminals effectively to zero, within a given time, after the capacitor has been disconnected
from a network
3.8
continuous operation
operation with no time limit within the normal life of the capacitor
3.9
intermittent operation
operation in which periods with the capacitor energized are followed by intervals during which
the capacitor is unenergized
3.10
starting operation
special type of intermittent operation in which the capacitor is energized for only a very short
period while the motor is accelerating to rated speed
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SIST EN 60252-2:2011
– 8 – 60252-2 Ó IEC:2010
3.11
rated duty cycle
rated value indicating the rate of intermittent or starting duty for which a capacitor is suitable
NOTE It is specified by the duty cycle duration, in minutes, and the percentage of the time during which the
capacitor is energized.
3.12
duty cycle duration
total time of one energized and one unenergized interval during the intermittent operation
3.13
relative operation time
percentage of the cycle duration in which the capacitor is energized
3.14
capacitor for continuous and starting operation
capacitor designed to operate at one voltage when in continuous operation and at a different
(usually higher) voltage when in starting operation
3.15
minimum permissible capacitor operating temperature
minimum permissible temperature on the outside of the case at the moment of switching on
the capacitor
3.16
maximum permissible capacitor operating temperature
t
c
maximum permissible temperature of the hottest area of the outside of the capacitor case
during operation
3.17
rated voltage of a capacitor
U
N
r.m.s. value of the alternating voltage for which the capacitor has been designed
3.18
maximum voltage
maximum r.m.s. voltage permissible at the starting capacitor terminals between the point of
starting and the instant at which the capacitor is disconnected
3.19
rated frequency of a capacitor
f
N
highest frequency for which the capacitor has been designed
3.20
rated capacitance of a capacitor
C
N
capacitance value for which the capacitor has been designed
3.21
rated current of a capacitor
I
N
r.m.s. value of the alternating current at the rated voltage and frequency
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SIST EN 60252-2:2011
60252-2 Ó IEC:2010 – 9 –
3.22
rated output of a capacitor
Q
N
reactive power derived from the rated values of capacitance, frequency and voltage
(or current)
3.23
capacitor losses
active power dissipated by a capacitor
NOTE Unless otherwise stated, the capacitor losses will be understood to include losses in fuses and discharge
resistors forming an integral part of the capacitor.
3.24
tangent of loss angle (tan delta) of a capacitor
ratio between the equivalent series resistance and the capacitive reactance of a capacitor
at specified sinusoidal alternating voltage and frequency
3.25
power factor
ratio between the active power and the apparent power of a capacitor
3.26
capacitive leakage current (only for capacitors with a metal case)
current flowing through a conductor connecting the metallic case to earth, when the capacitor
is energized from an a.c. supply system with an earthed neutral
3.27
type of capacitor
capacitors are considered to be of the same type when of similar constructional form, the
same constructional technology, same rated voltage, same climatic category and same kind of
operation
NOTE 1 Capacitors of the same type can differ only in rated capacitance and size; minor differences between
terminations and mounting devices are permitted.
NOTE 2 The same construction includes, for example, the same dielectric material, dielectric thickness and type
of case (metal or plastic).
3.28
model of capacitor
capacitors are considered to be of the same model when they are of the same construction
and have the same functional and dimensional characteristics within the tolerance limits and
are consequently interchangeable
3.29
class of safety protection
degree of safety protection identified by one of three codes to be marked on the capacitor
(P2) indicates that the capacitor type has been designed to fail in the open-circuit mode
only and is
...
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