bs en 6100-3-2 electromagnetic compatibility (emc)英国标准电气规范british standard电子版下载

bs en 6100-3-2 electromagnetic compatibility (emc)英国标准电气british standard电子版下载 关于铁凝的作文 放牛班的春天观后感 BS EN 6100-3-2 Electromagnetic compatibility (EMC)英国标准电气 规范British Standard电子版下载 Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSIIntertek Testing Services ETL SEMKO26 June 2002This is an uncontrolled copy. Ensure use of the mostcurrent version of this document by searching BritishStandards Online at bsonline.techindex.co.uk BRITISH STANDARDBS EN 61000-3-2 Ed.2:2001IEC 61000-3-2 Ed.2:2000Electromagnetic compatibility (EMC) —Part 3-2: Limits — Limits for harmonic current emissions (equipment input current up to and including 16 A per phase)The European Standard EN 61000-3-2 Ed.2:2000 has the status of a British StandardICS 33.100.01NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWLicensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI BS EN 61000-3-2 Ed.2:2001This British Standard, having been prepared under the direction the Electrotechnical Sector Committee, was published under the authority of the Standards of Committee and comes into effect on 15 March 2001? BSI 03-2001ISBN 0 580 37173 5National forewordThis British Standard is the official English language version of EN 61000-3-2 Ed.2:2000. It was derived by CENELEC from IEC 61000-3-2 Ed.2:2000. It supersedes BS EN 61000-3-2:1995 which is withdrawn.The CENELEC commom modifications have been implemented at the appropriate places in the text and are indicated by amendment tags ???The UK participation in its preparation was entrusted by Technical Committee GEL/210, EMC — Policy, to Subcommittee GEL/210/8, EMC — Low frequency disturbances, Which has the responsibility to: — 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 UK interests informed;— monitor related international and European developments and promulgate them in the UK.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 IEC 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-referencesAttention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards 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 responsible for their correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 a front cover, an inside front cover, the EN title page, pages 2 to 26, an inside back cover and a back cover.The BSI copyright date displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. DateCommentsLicensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001EUROPEAN STANDARDEN 61000-3-2NORME EUROPEENNEEUROPAISCHE NORMDecember 2000ICS 2:1995 + A1:1998 + A2:1998 + A14:2000English 33.100.10Supersedes EN 61000-3- versionElectromagnetic compatibility (EMC)Part 3-2: Limits - Limits for harmonic current emissions(equipment input current up to and including 16 A per phase)(IEC 61000-3-2:2000, modified)Compatibilité électromagnétique (CEM)Partie 3-2: Limites - Limites pour lesémissions de courant harmonique(courant appelé par les appareils inférieurou égal à 16 A par phase)(CEI 61000-3-2:2000, modifiée)Elektromagnetische Vertr?glichkeit (EMV)Teil 3-2: Grenzwerte - Grenzwerte fürOberschwingungsstr?me (Ger?te-Eingangsstrom bis einschlie?lich 16 Aje Leiter)(IEC 61000-3-2:2000, modifiziert)This European Standard was approved by CENELEC on 2000-12-05. CENELEC members arebound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions forgiving this European Standard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may beobtained on application to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version inany other language made by translation under the responsibility of a CENELEC member into itsown 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, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.CENELECEuropean Committee for Electrotechnical StandardizationComite Europeen de Normalisation ElectrotechniqueEuropaisches Komitee fur Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B – 1050 Brussels? 2000 CENELEC – All rights of exploitation in any form and by any means reserved worldwide for CENELECmambers.Ref. No. EN 61000-3-2:2000 ELicensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001ForewordDocument 77A/310/FDIS, future amendment to IEC 61000-3-2:1995, prepared by SC 77A, Low-frequency phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to the IEC-CENELEC parallel vote.The text of this document was incorporated into a new edition of IEC 61000-3-2 which, togetherwith common modifications prepared by the Technical Committee CENELEC TC 210,Electromagnetic compatibility (EMC), was approved by CENELEC as a new edition of EN 61000-3-2 on 2000-12-05.The European common modifications provide a temporary solution for legislation in Europe, tobe applied after 2001-01-01 for compliance with the EMC Directive.This European Standard replaces EN 61000-3-2:1995 and its amendments A1:1998, A2:1998and A14:2000.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)2001-07-01– latest date by which the national standards conflictingwith the EN have to be withdrawn(dow)2004-01-01The reference of subclauses, figures and tables which are in addition to those in IEC 61000-3-2is prefixed with the letter 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 Z.__________Endorsement noticeThe text of the International Standard IEC 61000-3-2:2000 was approved by CENELEC as a EuropeanStandard with agreed common modifications.Page 2EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001CONTENTSPageINTRODUCTION .................................................................................................................... 5Clause1Scope .............................................................................................................................. 62Normative references....................................................................................................... 63Definitions........................................................................................................................ 74General...........................................................................................................................105Classification of equipment .............................................................................................106General requirements......................................................................................................116.1Control methods ....................................................................................................116.2Harmonic current measurement .............................................................................126.3Equipment in a rack or case...................................................................................147Harmonic current limits ...................................................................................................147.1Limits for Class A equipment..................................................................................157.2Limits for Class B equipment..................................................................................167.3Limits for Class C equipment .................................................................................167.4Limits for Class D equipment .................................................................................16Annex A (normative) Measurement circuit and supply source................................................18A.1 Test circuit......................................................................................................................18A.2 Supply source .................................................................................................................18Annex B (normative) Requirements for measurement equipment ..........................................21Annex C (normative) Type test conditions.............................................................................22C.1 General................................................................................音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 ...........................................22C.2 Test conditions for television (TV) receivers ....................................................................22C.3 Test conditions for audio amplifiers .................................................................................23C.4 Test conditions for video-cassette recorders....................................................................23C.5 Test conditions for lighting equipment .............................................................................23C.6 Test conditions for independent and built-in incandescent lamp dimmers.........................24C.7 Test conditions for vacuum cleaners ...............................................................................24Page 3EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001PageC.8Test conditions for washing machines...........................................................................24C.9Test conditions for microwave ovens ............................................................................25C.10 Test conditions for information technology equipment (ITE) ..........................................25C.11 Test conditions for induction hobs.................................................................................25C.12 Test conditions for air conditioners ...............................................................................25C.13 Test conditions for kitchen machines as defined in IEC 60335-2-14 ..............................26C.14 Test conditions for arc welding equipment which is not professional equipment.............26C.15 Test conditions for other equipment..............................................................................26Figure A.1 – Measurement circuit for single-phase equipment................................................19Figure A.2 – Measurement circuit for three-phase equipment.................................................20Table 1 – Limits for Class A equipment..................................................................................17Table 2 – Limits for Class C equipment..................................................................................17Table 3 – Limits for Class D equipment..................................................................................17Table C.1 – Conventional load for arc welding equipment tests ..............................................26Page 4EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001INTRODUCTIONIEC 61000 is published in separate parts, according to the following structure:Part 1: GeneralGeneral considerations (introduction, fundamental principles)Definitions, terminologyPart 2: EnvironmentDescription of the environmentClassification of the environmentCompatibility levelsPart 3: LimitsEmission 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 limitsImmunity limits (in so far as they do not fall under the responsibility of the productcommittees)Part 4: Testing and measurement techniquesMeasurement techniquesTesting techniquesPart 5: Installation and mitigation guidelinesInstallation guidelinesMitigation methods and devicesPart 6: Generic standardsPart 9: MiscellaneousEach part is further subdivided into sections which are to be published either as internationalstandards, technical specifications, or as technical reports.These standards and reports will be published in chronological order and numberedaccordingly (for example, 61000-6-1).This part is an international standard which gives emission limits for harmonic currents fromequipment having an input current up to and including 16 A per phase.This part is a Product Family Standard.Page 5EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001ELECTROMAGNETIC COMPATIBILITY (EMC) –Part 3-2: Limits –Limits for harmonic current emissions(equipment input current ??16 A per phase)1 ScopeThis part of IEC 61000 deals with the limitation of harmonic currents injected into the publicsupply system.It specifies limits of harmonic components of the input current which may be produced byequipment tested under specified conditions.Harmonic components are measured according to annexes A and B.This part of IEC 61000 is applicable to electrical and electronic equipment having an inputcurrent up to and including 16 A per phase, and intended to be connected to public low-voltagedistribution systems.Arc welding equipment which is not professional equipment, with input current up to andincluding 16 A per phase, is included in this standard.Arc welding equipment intended for professional use, as specified in IEC 60974-1, is excludedfrom this standard and may be subject to installation restrictions as indicated in IEC 61000-3-4.NOTE 1 It is intended to replace technical report IEC 61000-3-4 by an international standard, IEC 61000-3-12(under consideration).The tests according to this standard are type tests. Test conditions for particular equipment aregiven in annex C.For systems with nominal voltages less than 220 V (line-to-neutral), the limits have not yetbeen considered.??NOTE 2 The words apparatus, appliance, device and equipment are used throughout this standard. They have thesame meaning for the purpose of this standard.2 Normative references?This 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 revisionsof any of these publications apply to this European Standard only when incorporated in it byamendment or revision. For undated references the latest edition of the publication referred toapplies (including amendments)EN 600651998Audio, video and similar electronic apparatus – Safety requirements(IEC 60065:1998, mod.)EN 60107-11997Methods of measurement on receivers for television broadcast transmissions– Part 1: General considerations – Measurements at radio and videofrequencies (IEC 60107-1:1997)Page 6EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001EN 601551995Glow-starters for fluorescent lamps (IEC 60155:1993)EN 60268-32000Sound system equipment – Part 3: Amplifiers (IEC 60268-3:2000)EN 60335-2-21995Safety of household and similar electrical appliances – Part 2-2: Particularrequirements for vacuum cleaners and water suction cleaning appliances(IEC 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 60335-2-2:1993, mod.)EN 60335-2-71997Safety of household and similar electrical appliances – Part 2-7: Particularrequirements for washing machines(IEC 60335-2-7:1993, mod.)EN 60335-2-141996Safety of household and similar electrical appliances – Part 2-14: Particularrequirements for kitchen machines(IEC 60335-2-14:1994, mod.)EN 60974-11998Arc welding equipment -- Part 1: Welding power sources (IEC 60974-1:1998)EN 61000-4-71993Electromagnetic compatibility (EMC) – Part 4-7: Testing and measurementtechniques – Section 7: General guide on harmonics and interharmonicsmeasurements and instrumentation, for power supply systems andequipment connected thereto(IEC 61000-4-7:1991)IEC 6International Electrotechnical Vocabulary (IEV) – Chapter 131: Electric andmagnetic circuitsIEC 6International Electrotechnical Vocabulary (IEV) – Chapter 161: Electro-magnetic compatibilityIEC 61000-2-21990Electromagnetic compatibility (EMC) – Part 2: Environment – Section 2:Compatibility levels for low-frequency conducted disturbances and signallingin public low-voltage power supply systemsIEC 61000-3-41998Electromagnetic compatibility (EMC) - Part 3-4: Limits - Limitation of emissionof harmonic currents in low-voltage power supply systems for equipment withrated current greater than 16 A?3 DefinitionsFor the purpose of this part of IEC 61000, the following definitions apply, as well as thedefinitions of IEC 60050(161).3.1portable toolan electrical tool which is hand-held during normal operation and used for a short time (a fewminutes) only3.2lampa source for producing lightPage 7EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-20013.3self-ballasted lampa unit which cannot be dismantled without being permanently damaged, provided with a lampcap and incorporating a light source and any additional element necessary for starting andstable operation of the light source3.4luminairean apparatus (other than a lamp) which distributes, filters or transforms the light transmittedfrom one or more lamps and which includes all the parts necessary for supporting, fixing andprotecting the lamps, and, where necessary, circuit auxiliaries, together with the means forconnecting them to the supply3.5semi-luminairea unit similar to a self-ballasted lamp but designed to utilize a replaceable light source and/orstarting device3.6ballasta device connected between the supply and one or more discharge lamps which serves mainlyto limit the current of the lamp(s) to the required value. It may include means for transformingthe supply voltage and/or frequency, correcting the power factor and, either alone or incombination with a starting device, provide the necessary conditions for starting the lamp(s)3.7step-down converter for lighting equipmenta unit inserted between the supply and one or more tungsten halogen or other filament lampswhich serves to supply the lamp(s) with its (their) rated voltage, generally at high frequency.The unit may consist of one or more separate components. It may include means for dimming,correcting the power factor and suppressing radio interference3.8lighting unitlighting equipment consisting of one self-ballasted lamp or the combination of one controldevice (ballast, semi-luminaire, transformer or the like) operating one or more lamps3.9reference lampa lamp selected for testing ballasts which, when associated with a reference ballast, haselectrical characteristics that are close to the objective values given in the relevant lampspecification3.10reference ballasta special inductive-type ballast designed for the purpose of providing comparison standards foruse in testing ballasts and for the selection 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 of reference lamps. It is essentially characterizedby a stable voltage-to-current ratio, which is relatively uninfluenced by variations in current,temperature, and the magnetic surroundings3.11input currentcurrent directly supplied to an equipment or a part of equipment by the a.c. distribution systemPage 8EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-20013.12circuit power factorthe circuit power factor is the ratio of the measured active input power to the product of thesupply voltage (r.m.s.) and the supply current (r.m.s.)3.13active powerthe mean value, taken over one period, of the instantaneous power [IEV 131-03-18]?NOTE The active input power is the active power measured at the input supply terminals of the equipmentunder test.?3.14balanced three-phase equipmentequipment having rated line current modules which differ by no more than 20 %3.15professional equipmentequipment for use in trades, professions, or industries and which is not intended for sale to thegeneral public. The designation shall be specified by the manufacturer?3.Z1total harmonic currentthe total r.m.s. value of the harmonic current components of orders 2 to 40total harmonic current ???4022nnI3.Z2built-in dimmera dimmer, including the user control, which is entirely contained within the enclosure of aluminaire3.Z3partial odd harmonic currentthe total r.m.s. value of the odd harmonic current components of orders 21 to 39partial odd harmonic current???3921,232I nn3.Z4lighting equipmentequipment with a primary function of generating and/or regulating and/or distributing opticalradiation by means of incandescent lamps, discharge lamps or LED’sIncluded are:-lamps and lighting luminaires;-the lighting part of multi-function equipment where one of the primary functions of this isillumination;-independent ballasts for discharge lamps and independent halogen lamp transformers;-UV and IR radiation equipment;-illuminated advertising signs;-dimmers for lamps other than incandescent.Excluded are:-lighting devices built in equipment with another primary purpose such as photocopiers,overhead projectors and slide projectors or employed for scale illuminating or indicationpurpose;- dimmers for incandescent lamps.Page 9EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001- 3.Z5stand-by modea non-operational, low power consumption mode (usually indicated in some way on theequipment) that can persist for an indefinite timeNOTE This mode is sometimes termed ‘sleep mode’.?4 GeneralThe objective of this standard is to set limits for harmonic emissions of equipment within itsscope, so that, with due allowance for the emissions from other equipment, compliance withthe limits ensures that harmonic disturbance levels do not exceed the compatibility levelsdefined in IEC 61000-2-2.?Professional equipment, which does not comply with the requirements of this standard, maybe permitted to be connected to certain types of low voltage supplies, if the instruction manualcontains a requirement to ask the supply authority for permission to connect.Recommendations concerning this aspect are contained in Technical Report IEC 61000-3-4 orthe standard (IEC 61000-3-12, to be published) that will replace it.?5 Classification of equipment?For the purpose of harmonic current limitation, equipment is classified as follows:Class A:- Balanced three-phase equipment;- Household appliances excluding equipment identified as Class D;- Tools excluding portable tools;- Dimmers for 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 incandescent lamps;- Audio equipment.Equipment not specified in one of the three other classes shall be considered as Class Aequipment.NOTE 1 Equipment that can be shown to have a significant effect on the supply system may be reclassified in afuture edition of the standard. Factors to be taken into account include:? number in use;? duration of use;? simultaneity of use;? power consumption;? harmonic spectrum, including phase.Class B:- Portable tools;- Arc welding equipment which is not professional equipment.Class C:- Lighting equipment.Class D:Equipment having a specified power according to 6.2.2 less than or equal to 600 W, of thefollowing types:- Personal computers and personal computer monitors;- Television receivers.NOTE 2 Class D limits are reserved for equipment that, by virtue of the factors listed in note 1, can be shown tohave a pronounced effect on the public electricity supply system.?Page 10EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-20016 General requirementsThe requirements and limits specified in this clause are applicable to the power input terminalsof equipment intended to be connected to 220/380 V, 230/400 V and 240/415 V systemsoperating at 50 Hz or 60 Hz. Requirements and limits for other cases are not yet considered.6.1 Control methods?The following restrictions apply even to equipment to which no harmonic current limits applyas defined in clause 7.?Asymmetrical controls according to IEV 161-07-12 and half wave rectification directly on themains supply may only be used in the following circumstances:a) where they are the only practical solution permitting the detection of unsafe conditions, orb) where the controlled active input power is less or equal to 100 W, orc) where the controlled appliance is a portable equipment fitted with a two-core flexible cordand is intended for use for a short period of time, i.e. for a few minutes only.If one of these three conditions is fulfilled, half wave rectification may be used for any purpose,whereas asymmetrical controls may only be used for the control of motors.NOTE Such equipment includes, but is not limited to, hair dryers, electrical kitchen appliances and portable tools.Symmetrical control methods which are prone to produce harmonics of low order (n ? 40) in theinput current may be used for the control of the power supplied to heating elements providedthat the full sine-wave input power is less than or equal to 200 W, or that the limits of table 3are not exceeded.Such symmetrical control methods are also allowed for professional equipment provided thateithera) one of the above conditions are fulfilled, orb) the relevant limits are not exceeded when tested at the supply input terminals and inaddition both the following conditions are fulfilled:1) it is necessary to control precisely the temperature of a heater whose thermal timeconstant is less than 2 s, and2) there is no other technique economically available.Professional equipment whose primary purpose, considered as a whole, is not for heating, shallbe tested against the relevant limits.NOTE 1 An example of a product whose primary purpose is not heating is a photocopier, whereas a cooker isconsidered to have heating as its primary purpose.Page 11EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-2001Domestic equipment with symmetrical control used for a short time (for example hair dryers)shall be tested under Class A.Even though asymmetrical controls and half-wave rectification are permitted under theconditions given above, the equipment shall still comply with the harmonic requirements of thisstandard.NOTE 2 The use of asymmetrical 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 controls and half-wave rectification is allowed in the above circumstances;however, in case of fault, the d.c. component of the supplied current may disturb certain types of protectiondevices. In the same way, this may also happen with the use of symmetrical controls.6.2 Harmonic current measurement?6.2.1Test configurationSpecific test conditions for the measurement of harmonic currents associated with some typesof equipment are given in annex C.For equipment not mentioned in annex C, emission tests shall be conducted with the user’soperation controls or automatic programs set to the mode expected to produce the maximumtotal harmonic current (THC) under normal operating conditions. This defines the equipmentset-up during emission tests and not a requirement to measure THC or to conduct searches forworst-case emissions.The harmonic current limits specified in clause 7 apply to line currents and not to currents inthe neutral conductor.The equipment is tested as presented by, and in accordance with information provided by, themanufacturer. Preliminary operation of motor drives by the manufacturer may be neededbefore the tests are undertaken to ensure that results correspond with normal use.6.2.2 Measurement procedureThe test shall be conducted according to the general requirements given in 6.2.3. The testduration shall be as defined in 6.2.4.The measurement of harmonic currents shall be performed as follows:-for each harmonic order, measure the 1,5 s smoothed r.m.s. harmonic current in each DFTtime window as defined in annex B ,-calculate the arithmetic average of the measured values from the DFT time windows overthe entire observation period as defined in 6.2.4.The value of input power to be used for the calculation of limits shall be determined as follows:-measure the 1,5 s smoothed active input power in each DFT time window,-determine the maximum of the measured values of power from the DFT time windows overthe entire duration of the test.NOTE The active input power supplied to the smoothing section of the measuring instrument as defined in annexB is the active input power in each DFT time window.The harmonic currents and the active input power shall be measured under the same testconditions but need not be measured simultaneously.The value for power, measured as defined in this clause, shall be specified by themanufacturer and documented in the test report. This value shall be used for establishing limitsduring emissions tests when limits are specified in terms of power. In order not to specify apower at which limits change abruptly, thus giving rise to doubt as to which limits apply, themanufacturer may specify any value which is within ? 10 % of the actual measured value.The value for power found by measurement during emission tests other than the originalmanufacturer’s conformity assessment test, measured according to the terms of this clause,shall not be less than 90 % nor greater than 110 % of the value for power specified by themanufacturer in the test report (see 6.2.3.4). In the event that the measured value is outside ofthis tolerance band about the specified value, the measured power shall be used to establishthe limits.For Class C equipment, the fundamental current and power factor, specified by themanufacturer, shall be used for the calculation of limits (see 3.12).The fundamental componentof current and the power factor are measured and specified by the manufacturer in the sameway as the power is measured and specified for the calculation of Class D limits. The valueused for power factor shall be obtained from the same DFT measurement window as the valuefor the fundamental component of current.Page 12EN 61000?3?2:2000Licensed Copy: Intertek Testing Services ETL SEMKO, Intertek Testing Serv, 26 June 2002, Uncontrolled Copy, (c) BSI ? BSI 03-20016.2.3 General requirements6.2.3.1RepeatabilityThe repeatability of the 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩 关于铁凝的作文 放牛班的春天观后感 measurements shall be better than +/- 5 %, when the followingconditions are met:- the same equipment under test (EUT) (not another of the same type, however similar);- identical test conditions;- same test system;- identical climatic conditions, if relevant.6.2.3.2Starting and stoppingWhen a piece of equipment is brought into operation or is taken out of operation, manually orautomatically, harmonic currents and power are not taken into account for the first 10 sfollowing the switching event.The equipment under test shall not be in stand-by mode (see 3.Z5) for more than 10 % of anyobservation period.6.2.3.3Application of limitsThe average value for the individual harmonic currents, taken over the entire test observationperiod shall be less than or equal to the applicable limits.For each harmonic order, all 1,5 s smoothed r.m.s. harmonic current values, as defined in6.2.2, shall be less than or equal to 150 % of the applicable limits.Harmonic currents less than 0,6 % of the input current measured under the test conditions, orless than 5 mA, whichever is greater, are disregarded.For the 21st and higher odd order harmonics, the average values obtained for each indiv... 音乐剧猫 昆虫记读后感 禁毒感想 金色的鱼钩