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1、BRITISH STANDARD BS EN 60252-1:2001 IEC 60252-1:2001 AC motor capacitors Part 1: General Performance, testing and rating Safety requirements Guide for installation and operation The European Standard EN 60252-1:2001 has the status of a British Standard ICS 31.060.70 NO COPYING WITHOUT BSI PERMISSION
2、 EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 60252-1:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 16 April 2002 BSI 16 April 2002 I
3、SBN 0 580 39437 9 National foreword This British Standard is the official English language version of EN 60252-1:2001. It is identical with IEC 60252-1:2001. It supersedes BS EN 60252:1994 which will be withdrawn on 2004-10-01. The UK participation in its preparation was entrusted to Technical Commi
4、ttee PEL/33, Power capacitors, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IE
5、C 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI St
6、andards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsibl
7、e for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the
8、UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 33 and a back cover. The BSI copyright date displayed in this document indicates
9、when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARDEN 60252-1 NORME EUROPENNE EUROPISCHE NORMOctober 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr
10、Elektrotechnische Normung Central 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 E ICS 31.060.30; 31.060.70Supersedes EN 60252:1994 English version AC motor capa
11、citors Part 1: General - Performance, testing and rating - Safety requirements - Guide for installation and operation (IEC 60252-1:2001) Condensateurs des moteurs courant alternatif Partie 1: Gnralits - Caractristiques fonctionnelles, essais et valeurs assignes - Rgles de scurit - Guide dinstallatio
12、n et dutilisation (CEI 60252-1:2001) Motorkondensatoren Teil 1: Allgemeines - Leistung, Prfung und Bemessung - Sicherheitsanforderungen - Leitfaden fr die Installation und den Betrieb (IEC 60252-1:2001) This European Standard was approved by CENELEC on 2001-09-25. CENELEC members are bound to comply
13、 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 Secre
14、tariat 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 t
15、he 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
16、- 2 - Foreword The text of document 33/333/FDIS, future edition 1 of IEC 60252-1, prepared by IEC TC 33, Power capacitors, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60252-1 on 2001-09-25. This European Standard supersedes EN 60252:1994 + corrigendum May 1994. T
17、he following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 2002-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 2004-10-01 Annexes desig
18、nated “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 notice The text of the International Standard IEC 60252-1:2001 was approved by CENELEC as a European Standard without any modification. In the o
19、fficial 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 Ha
20、rmonized 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). _ Page 2 EN 602
21、521:2001 BSI 16 April 2002 062-251 ? EI:C0021 3 CONTENTS Page Clause 1General . 5 1.1Scope and object 5 1.2Normative references . 6 1.3Definitions 6 1.4Service conditions 9 1.5Preferred tolerances on capacitance10 2Quality requirements and tests .10 2.1Test requirements10 2.2Nature of tests.10 2.3Ty
22、pe tests11 2.4Routine tests .13 2.5Tangent of loss angle 13 2.6Visual examination 13 2.7Voltage test between terminals13 2.8Voltage test between terminals and case.14 2.9Capacitance measurement 15 2.10 Check of dimensions .15 2.11 Mechanical tests15 2.12 Sealing test .17 2.13 Endurance test 18 2.14
23、Damp-heat test19 2.15 Self-healing test.20 2.16 Destruction test .20 2.17 Resistance to heat, fire and tracking23 3Overloads.24 3.1Permissible overloads24 4Safety requirements25 4.1Creepage distances and clearances 25 4.2Terminals and connecting cables.25 4.3Earth connections26 4.4Discharge devices
24、.27 5Ratings.27 5.1Marking .27 Page 3 EN 602521:2001 BSI 16 April 2002 062-251 ? EI:C0021 4 ClausePage 6Guide for installation and operation.27 6.1General .27 6.2Choice of rated voltage28 6.3Checking capacitor temperature 28 6.4Checking transients .29 6.5Leakage current.29 Annex A (normative) Test v
25、oltage .30 Annex ZA (normative) Normative references to international publications with their corresponding European publications32 Bibliography31 Figure 1 Test apparatus for d.c. conditioning21 Figure 2 Test apparatus for a.c. destruction test.21 Figure 3 Arrangement to produce the variable inducto
26、r L in figure 2.22 Table 1 Type test schedule 12 Table 2a Test voltages.14 Table 2b Test voltages.14 Table 3 Torque.16 Table 4 Endurance test conditions19 Table 5 Minimum creepage distances and clearances26 Page 4 EN 602521:2001 BSI 16 April 2002 062-251 ? EI:C0021 5 Part 1: General Performance, tes
27、ting and rating Safety requirements Guide for installation and operation 1 General 1.1 Scope and object This International Standard 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
28、, 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-f
29、oil electrodes, with rated voltages 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)
30、; 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 frequen
31、cies between 40 Hz and 24 000 Hz (see IEC 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
32、); 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 standar
33、d 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. _ * AC motor capacitors Part 2: Motor start capacitors. In preparation. This will become the standard for both self-healing and el
34、ectrolytic motor start capacitors. Page 5 EN 602521:2001 BSI 16 April 2002 062-251 ? EI:C0021 6 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 amend
35、ments 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
36、of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60068-2-3:1969, Environmental testing Part 2: Tests Test Ca: Damp heat, steady state IEC 60068-2-6:1995, Environmental testing Part 2: Tests Test Fc: Vibration (si
37、nusoidal) IEC 60068-2-20:1979, Environmental testing Part 2: Tests Test T: Soldering IEC 60068-2-21:1999, Environmental testing Part 2-21: Tests Test U: Robustness of terminations and integral mounting devices IEC 60112:1979, Method for determining the comparative and the proof tracking indices of s
38、olid insulating materials under moist conditions IEC 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes Part 1: General requirements IEC 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/s
39、heet 0: Glow- wire test methods General IEC 60695-2-1/1:1994, Fire hazard testing Part 2: Test methods Section 1/sheet 1: Glow- wire end-product test and guidance ISO 4046:1978, Paper, board, pulp and related terms Vocabulary 1.3 Definitions For the purpose of this part of IEC 60252, the following d
40、efinitions apply. 1.3.1 motor running capacitor a 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 rem
41、ains 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. 1.3.2 motor starting capacitor a power capacitor which provides a leading current to an auxiliary winding of a motor and which is swi
42、tched out of circuit once the motor is running Page 6 EN 602521:2001 BSI 16 April 2002 062-251 ? EI:C0021 7 1.3.3 metal foil capacitor a capacitor, the electrodes of which consist of metal foils or strips separated by a dielectric 1.3.4 metallized capacitor a capacitor, in which the electrodes consi
43、st of a metallic deposit on the dielectric 1.3.5 self-healing capacitor a capacitor, the electrical properties of which, after local breakdown of the dielectric, are rapidly and essentially self-restored 1.3.6 discharge device of a capacitor a device which may be incorporated in a capacitor, capable
44、 of reducing the voltage between the terminals effectively to zero, within a given time, after the capacitor has been disconnected from a network 1.3.7 continuous operation operation with no time limit within the normal life of the capacitor 1.3.8 class of operation the minimum total life for which
45、the capacitor has been designed at rated duty, voltage, temperature and frequency Class A 30 000 h Class B 10 000 h Class C 3 000 h Class D 1 000 h These 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 tha
46、n one class with corresponding voltages. 1.3.9 minimum permissible capacitor operating temperature minimum permissible temperature on the outside of the case at the moment of switching on the capacitor 1.3.10 maximum permissible capacitor operating temperature (tc) maximum permissible temperature of
47、 the hottest area of the outside of the capacitor case during operation 1.3.11 rated voltage of a capacitor (UN) r.m.s. value of the alternating voltage for which the capacitor has been designed Page 7 EN 602521:2001 BSI 16 April 2002 062-251 ? EI:C0021 8 1.3.12 rated frequency of a capacitor (fN) h
48、ighest frequency for which the capacitor has been designed 1.3.13 rated capacitance of a capacitor (CN) capacitance value for which the capacitor has been designed 1.3.144 rated current of a capacitor (IN) r.m.s. value of the alternating current at the rated voltage and frequency 1.3.15 rated output
49、 of a capacitor (QN) reactive power derived from the rated values of capacitance, frequency and voltage (or current) 1.3.16 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. 1.3.17 tangent of loss angle (tan delta) of a capacitor ratio betw