SIST EN 60252-1:2002
(Main)AC motor capacitors -- Part 1: General - Performance, testing and rating - Safety requirements - Guide for installation and operation
AC motor capacitors -- Part 1: General - Performance, testing and rating - Safety requirements - Guide for installation and operation
Applies to motor capacitors intended for connection to windings of asynchronous motors supplied from a single-phase system having a frequency up to and including 100 Hz, and to capacitors to be connected to three-phase asynchronous motors so that 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 rated voltages up to and including 660 V.
Motorkondensatoren -- Teil 1: Allgemeines - Leistung, Prüfung und Bemessung - Sicherheitsanforderungen - Leitfaden für die Installation und den Betrieb
Condensateurs des moteurs à courant alternatif -- Partie 1: Généralités - Caractéristiques fonctionnelles, essais et valeurs assignées - Règles de sécurité - Guide d'installation et d'utilisation
S'applique aux condensateurs destinés à être raccordés aux enroulements des moteurs asynchrones alimentés par un réseau monophasé dont la fréquence ne dépasse pas 100 Hz, et aux condensateurs destinés aux moteurs asynchrones triphasés pour permettre le raccordement de ces moteurs à un réseau monophasé. La présente norme couvre les condensateurs imprégnés ou non, ayant un diélectrique en papier, film plastique ou une combinaison des deux, soit métallisés, soit à électrodes en feuilles de métal, pour une tension assignée n'excédant pas 660 V.
AC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guide for installation and operation
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SIST EN 60252-1:2002SLOVENSKIseptember 2002prva izdajaSTANDARDAC motor capacitors - Part 1: General - Performance, testing and rating - Safety requirements - Guide for installation and operation©
Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljenoReferenčna številkaSIST EN 60252-1:2002(en)ICS31.060.70
EUROPEAN STANDARDEN 60252-1NORME EUROPÉENNEEUROPÄISCHE NORMOctober 2001CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2001 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 60252-1:2001 EICS 31.060.30; 31.060.70Supersedes EN 60252:1994English versionAC motor capacitorsPart 1: General - Performance, testing and rating -Safety requirements - Guide for installation and operation(IEC 60252-1:2001)Condensateurs des moteurs à courantalternatifPartie 1: Généralités -Caractéristiques fonctionnelles,essais et valeurs assignées -Règles de sécurité -Guide d'installation et d'utilisation(CEI 60252-1:2001)MotorkondensatorenTeil 1: Allgemeines -Leistung, Prüfung und Bemessung -Sicherheitsanforderungen -Leitfaden für die Installation undden Betrieb(IEC 60252-1:2001)This European Standard was approved by CENELEC on 2001-09-25. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version in any otherlanguage made by translation under the responsibility of a CENELEC member into its own language andnotified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EN 60252-1:2001- 2 -ForewordThe text of document 33/333/FDIS, future edition 1 of IEC 60252-1, prepared by IEC TC 33, Powercapacitors, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC asEN 60252-1 on 2001-09-25.This European Standard supersedes EN 60252:1994 + corrigendum May 1994.The following dates were fixed:–latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement(dop)2002-07-01–latest date by which the national standards conflictingwith the EN have to be withdrawn(dow)2004-10-01Annexes designated "normative" are part of the body of the standard. In this standard, annexes A and ZA are normative.Annex ZA has been added by CENELEC.__________Endorsement noticeThe text of the International Standard IEC 60252-1:2001 was approved by CENELEC as a EuropeanStandard without any modification.In the official version, for Bibliography, the following notes have to be added for the standards indicated:IEC 60110-1NOTE
Harmonized as EN 60110-1:1998 (not modified).IEC 60143NOTE
Harmonized in the series EN 60143 (modified).IEC 60358NOTE
Harmonized as HD 597 S1:1992 (not modified).IEC 60831-1NOTE
Harmonized as EN 60831-1:1996 (not modified).IEC 60871-1NOTE
Harmonized as EN 60871-1:1997 (not modified).IEC 60931-1NOTE
Harmonized as EN 60931-1:1996 (not modified).IEC 61048 NOTE
Harmonized as EN 61048:1993 (not modified).IEC 61071-1NOTE
Harmonized as EN 61071-1:1996 (modified).__________
- 3 -EN 60252-1:2001Annex ZA(normative)Normative references to international publicationswith their corresponding European publicationsThis European Standard incorporates by dated or undated reference, provisions from otherpublications. These normative references are cited at the appropriate places in the text and thepublications are listed hereafter. For dated references, subsequent amendments to or revisions of anyof these publications apply to this European Standard only when incorporated in it by amendment orrevision. For undated references the latest edition of the publication referred to applies (includingamendments).NOTEWhen an international publication has been modified by common modifications, indicated by (mod), the relevantEN/HD applies.PublicationYearTitleEN/HDYearIEC 60068-2-31969Basic environmental testing proceduresPart 2: Tests - Test Ca: Damp heat,steady stateHD 323.2.3 S21)1987IEC 60068-2-6+ corr. March19951995Part 2: Tests - Test Fc: Vibration(sinusoidal)EN 60068-2-61995IEC 60068-2-201979Part 2: Tests - Test T: SolderingHD 323.2.20 S32)1988IEC 60068-2-211999Part 2-21: Tests - Test U: Robustness ofterminations and integral mountingdevicesEN 60068-2-211999IEC 601121979Method for determining the comparativeand the proof tracking indices of solidinsulating materials under moistconditionsHD 214 S21980IEC 60309-11999Plugs, socket-outlets and couplers forindustrial purposesPart 1: General requirementsEN 60309-11999IEC 605291989Degrees of protection provided byenclosures (IP Code)EN 60529+ corr. May19911993IEC 60695-2-1/01994Fire hazard testingPart 2: Test methods --Section 1/sheet 0: Glow-wire testmethods - GeneralEN 60695-2-1/03)1996IEC 60695-2-1/11994Part 2: Test methods --Section 1/sheet 1: Glow-wire end-product test and guidanceEN 60695-2-1/14)1996
1) HD 323 2.3 S2 includes A1:1984 to IEC 60068-2-3.2) HD 323 2.20 S3 includes A2:1987 to IEC 60068-2-20.3) EN 60695-2-1/0 is superseded by EN 60695-2-10:2001 (IEC 60695-2-10:2000).4) EN 60695-2-1/1 is superseded by EN 60695-2-11:2001 (IEC 60695-2-11:2000).
EN 60252-1:2001- 4 -PublicationYearTitleEN/HDYearISO 40461978Paper, board, pulp and related terms -Vocabulary--
NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD60252-1Première éditionFirst edition2001-02Condensateurs des moteurs à courant alternatif –Partie 1:Généralités – Caractéristiques fonctionnelles,essais et valeurs assignées – Règles de sécuritéGuide d'installation et d'utilisationAC motor capacitors –Part 1:General – Performance, testing and rating –Safety requirements – Guide for installationand operation Commission Electrotechnique Internationale International Electrotechnical CommissionPour prix, voir catalogue en vigueurFor price, see current catalogue IEC 2001
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http://www.iec.chCODE PRIXPRICE CODEV
60252-1 IEC:2001– 3 –CONTENTSPageFOREWORD.7Clause1General.111.1Scope and object.111.2Normative references.131.3Definitions.131.4Service conditions.191.5Preferred tolerances on capacitance.212Quality requirements and tests.212.1Test requirements.212.2Nature of tests.212.3Type tests.232.4Routine tests.272.5Tangent of loss angle.272.6Visual examination.272.7Voltage test between terminals.272.8Voltage test between terminals and case.292.9Capacitance measurement.312.10Check of dimensions.312.11Mechanical tests.312.12Sealing test.352.13Endurance test.372.14Damp-heat test.392.15Self-healing test.412.16Destruction test.412.17Resistance to heat, fire and tracking.473Overloads.493.1Permissible overloads.494Safety requirements.514.1Creepage distances and clearances.514.2Terminals and connecting cables.514.3Earth connections.534.4Discharge devices.555Ratings.555.1Marking.55
60252-1 IEC:2001– 5 –ClausePage6Guide for installation and operation.556.1General.556.2Choice of rated voltage.576.3Checking capacitor temperature.576.4Checking transients.596.5Leakage current.59Annex A (normative)
Test voltage.61Bibliography.63Figure 1 – Test apparatus for d.c. conditioning.43Figure 2 – Test apparatus for a.c. destruction test.43Figure 3 – Arrangement to produce the variable inductor L in figure 2.45Table 1 – Type test schedule.25Table 2a – Test voltages.29Table 2b – Test voltages.29Table 3 – Torque.33Table 4 – Endurance test conditions.39Table 5 – Minimum creepage distances and clearances.53
60252-1 IEC:2001– 7 –INTERNATIONAL ELECTROTECHNICAL COMMISSION____________AC MOTOR CAPACITORS –Part 1: General – Performance, testing and rating –Safety requirements –Guide for installation and operationFOREWORD1)The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprisingall national electrotechnical committees (IEC National Committees). The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields. Tothis end and in addition to other activities, the IEC publishes International Standards. Their preparation isentrusted to technical committees; any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work. International, governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation. The IEC collaborates closely with the InternationalOrganization for Standardization (ISO) in accordance with conditions determined by agreement between thetwo organizations.2)The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3)The documents produced have the form of recommendations for international use and are published in the formof standards, technical specifications, technical reports or guides and they are accepted by the NationalCommittees in that sense.4)
In order to promote international unification, IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards. Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5)
The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment declared to be in conformity with one of its standards.6)
Attention is drawn to the possibility that some of the elements of this International Standard may be the subjectof patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.International Standard IEC 60252-1 has been prepared by IEC technical committee 33: Powercapacitors.This first edition cancels and replaces the third edition of IEC 60252 published in 1993 andconstitutes a technical revision.The text of this standard is based on the third edition of IEC 60252 and on the followingdocuments:FDISReport on voting33/333/FDIS33/335/RVDFull information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table.This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
60252-1 IEC:2001– 9 –Annex A forms an integral part of this standard.Requirements for motor start capacitors will be considered in IEC 60252-2 that is underpreparation. The problem regarding requirements for motor start capacitors was discussedduring the TC 33 meeting held in Kista/Stockolm from 15 to 17 June 1999. It was unanimouslystated that the requirements for motor start capacitors, indicated in IEC 60252: 1993 Ed. 3.0,will be valid until IEC 60252-2 is issued.The committee has decided that the contents of this publication will remain unchanged until 2008.At this date, the publication will be•reconfirmed;•withdrawn;•replaced by a revised edition, or•amended.
60252-1 IEC:2001– 11 –AC MOTOR CAPACITORS –Part 1: General – Performance, testing and rating –Safety requirements –Guide for installation and operation1 General1.1 Scope and objectThis 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 660 V.Motor start capacitors will be covered by IEC 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 1 000 V nominal voltage(see IEC 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 IEC 60931-1);–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 24 000 Hz (seeIEC 60110-1);–series capacitors (see IEC 60143);–coupling capacitors and capacitor dividers (see IEC 60358);–capacitors to be used in power electronic circuits (see IEC 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 isa)to formulate uniform rules regarding performance, testing and rating;b)to formulate specific safety rules;c)to provide a guide for installation and operation.________*AC motor capacitors – Part 2: Motor start capacitors. In preparation. This will become the standard for bothself-healing and electrolytic motor start capacitors.
60252-1 IEC:2001– 13 –1.2 Normative referencesThe following normative documents contain provisions which, through reference in this text,constitute provisions of this part of IEC 60252. For dated references, subsequentamendments to, or revisions of, any of these publications do not apply. However, parties toagreements based on this part of IEC 60252 are encouraged to investigate the possibility ofapplying the most recent editions of the normative documents indicated below. For undatedreferences, the latest edition of the normative document referred to applies. Members of IECand ISO maintain registers of currently valid International Standards.IEC 60068-2-3:1969, Environmental testing – Part 2: Tests – Test Ca: Damp heat, steadystateIEC 60068-2-6:1995, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)IEC 60068-2-20:1979, Environmental testing – Part 2: Tests – Test T: SolderingIEC 60068-2-21:1999, Environmental testing – Part 2-21: Tests – Test U: Robustness ofterminations and integral mounting devicesIEC 60112:1979, Method for determining the comparative and the proof tracking indices ofsolid insulating materials under moist conditionsIEC 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes – Part 1:General requirementsIEC 60529:1989, Degrees of protection provided by enclosures (IP Code)IEC 60695-2-1/0:1994, Fire hazard testing – Part 2: Test methods – Section 1/sheet 0: Glow-wire test methods – GeneralIEC 60695-2-1/1:1994, Fire hazard testing – Part 2: Test methods – Section 1/sheet 1: Glow-wire end-product test and guidanceISO 4046:1978, Paper, board, pulp and related terms – Vocabulary1.3 DefinitionsFor the purpose of this part of IEC 60252, the following definitions apply.1.3.1motor running capacitora 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 conditionsNOTE
The running capacitor is usually connected permanently to the motor winding and remains in circuitthroughout 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.1.3.2motor starting capacitora power capacitor which provides a leading current to an auxiliary winding of a motor andwhich is switched out of circuit once the motor is running
60252-1 IEC:2001– 15 –1.3.3metal foil capacitora capacitor, the electrodes of which consist of metal foils or strips separated by a dielectric1.3.4metallized capacitora capacitor, in which the electrodes consist of a metallic deposit on the dielectric1.3.5self-healing capacitora capacitor, the electrical properties of which, after local breakdown of the dielectric, arerapidly and essentially self-restored1.3.6discharge device of a capacitora device which may be incorporated in a capacitor, capable of reducing the voltage betweenthe terminals effectively to zero, within a given time, after the capacitor has beendisconnected from a network1.3.7continuous operationoperation with no time limit within the normal life of the capacitor1.3.8class of operationthe minimum total life for which the capacitor has been designed at rated duty, voltage,temperature and frequencyClass A –30 000 hClass B –10 000 hClass C –
3 000 hClass D –
1 000 hThese classes of operation are intended to represent a true failure rate not exceeding 3 %during the life of the product.A capacitor may have more than one class with corresponding voltages.1.3.9minimum permissible capacitor operating temperatureminimum permissible temperature on the outside of the case at the moment of switching onthe capacitor1.3.10maximum permissible capacitor operating temperature (tc)maximum permissible temperature of the hottest area of the outside of the capacitor caseduring operation1.3.11rated voltage of a capacitor (UN)r.m.s. value of the alternating voltage for which the capacitor has been designed
60252-1 IEC:2001– 17 –1.3.12rated frequency of a capacitor (fN)highest frequency for which the capacitor has been designed1.3.13rated capacitance of a capacitor (CN)capacitance value for which the capacitor has been designed1.3.144rated current of a capacitor (IN)r.m.s. value of the alternating current at the rated voltage and frequency1.3.15rated output of a capacitor (QN)reactive power derived from the rated values of capacitance, frequency and voltage(or current)1.3.16capacitor lossesactive power dissipated by a capacitorNOTE
Unless otherwise stated, the capacitor losses will be understood to include losses in fuses and dischargeresistors forming an integral part of the capacitor.1.3.17tangent of loss angle (tan delta) of a capacitorratio between the equivalent series resistance and the capacitive reactance of a capacitor atspecified sinusoidal alternating voltage and frequency1.3.18capacitive leakage current (only for capacitors with a metal case)current flowing through a conductor connecting the metallic case to earth, when the capacitoris energized from an a.c. supply system with an earthed neutral1.3.19type of capacitorcapacitors are considered to be of the same type when of similar constructional form, thesame constructional technology, same rated voltage, same climatic category and same kind ofoperation. Capacitors of the same type can differ only in rated capacitance and size. Minordifferences between terminations and mounting devices are permittedNOTE
The same construction includes, for example, the same dielectric material, dielectric thickness and type ofcase (metal or plastic).
60252-1 IEC:2001– 19 –1.3.20model of capacitorcapacitors are considered to be of the same model when they are of the same constructionand have the same functional and dimensional characteristics within the tolerance limits andare consequently interchangeable1.3.21class of safety protectiondegree 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 modeonly and is protected against fire or shock hazard. Compliance is verified by the testdescribed in 2.16.(P1)indicates that the capacitor type may fail in the open-circuit or short-circuit mode andis protected against fire or shock hazard. Compliance is verified by the test describedin 2.16.(P0)indicates that the capacitor type has no specific failure protection.1.4 Service conditions1.4.1 Normal service conditionsThis standard gives requirements for capacitors intended for use under the followingconditions:a)altitude: not exceeding 2 000 m;b)residual voltage at energization: shall not exceed 10 % rated voltage (see 4.4, note);c)pollution: capacitors included in the scope of this standard are designed for operation inlightly polluted atmospheres;NOTE
The IEC has not yet established a definition for "lightly polluted". When this definition is established bythe IEC, it will be incorporated in this standard.d)operating temperature: between –40 °C and +100 °C (see 1.3.9 and 1.3.10).The preferred minimum and maximum permissible capacitor operating temperatures areas follows:–minimum temperatures: –40 °C, –25 °C, –10 °C and 0 °C;–maximum temperatures: 55 °C, 70 °C, 85 °C and 100 °C.Capacitors shall be suitable for transport and storage at temperatures down to –25 °C, orthe minimum operating temperature, whichever is the lower, without adverse effect ontheir quality;e) damp heat severity: between 4 days and 56 days. The preferred severity is 21 days.(The damp heat severity shall be selected from the values indicated by IEC 60068-2-3,i.e.: 4 days, 10 days, 21 days and 56 days.)Capacitors are classified in climatic categories defined by the minimum and maximumpermissible capacitor operating temperatures and damp heat severity; i.e. 10/70/21indicates that the minimum and the maximum permissible capacitor operatingtemperatures are –10 °C and 70 °C and the damp heat severity is 21 days.
60252-1 IEC:2001– 21 –1.5 Preferred tolerances on capacitancePreferred tolerances are as follows: ±5 %, ±10 % and ±15 %.Asymmetric tolerances are permitted but no tolerance shall exceed 15 %.2 Quality requirements and tests2.1 Test requirements2.1.1 GeneralThis clause gives the test requirements for capacitors.2.1.2 Test conditionsUnless otherwise specified for a particular test or measurement, the temperature of thecapacitor dielectric shall be in the range +15 °C to +35 °C and shall be recorded.If corrections are necessary, the reference temperature shall be +20 °C.NOTE
It may be assumed that the dielectric temperature is the same as the ambient temperature, provided thatthe capacitor has been left in an unenergized state at this ambient temperature for an adequate period, dependingon the size of the capacitor.2.2 Nature of testsThe tests specified are of two sorts:a)type tests;b)routine tests.2.2.1
Type testsType tests are intended to prove the soundness of the design of the capacitor and itssuitability for operation under the conditions detailed in this standard.Type tests are carried out by the manufacturer and/or the test authority if there is need for anapproval.These tests may be carried out under the supervision of a proper authority which will issue acertified record and/or type approval.2.2.2
Routine testsRoutine tests shall be carried out by the manufacturer on every capacitor before delivery. Ifthe purchaser so requests, he shall be supplied with a certificate stating that routine testshave been carried out.
60252-1 IEC:2001– 23 –2.3 Type tests2.3.1 Test procedureThe samples of each model selected for the type tests shall be divided into groups, asindicated in table 1.Capacitors forming the sample shall have successfully passed the routine tests indicated in 2.4.1.Each test group shall contain equal numbers of capacitors of the highest capacitance and thelowest capacitance in the range.The manufacturer shall provide data on the ratio of capacitance per outer total surface area ofthe case of each capacitance value in the range.The capacitor with the maximum capacitance per unit surface area shall also be tested if thisratio exceeds that of the maximum capacitance value in the range by 10 % or more.Similarly, the capacitor with the minimum capacitance per unit area shall also be tested if theratio is less than that of the minimum capacitance value in the range by 10 % or more."Area" denotes total outer surface area of the capacitor case with the exception of smallprotrusions, terminals and fixing studs.2.3.2 Extent of qualification2.3.2.1
A type test on a single model qualifies only the model tested. When the type test isperformed on two models of the same type, and of different rated capacitance value,
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