Bsi bs en 62109 1 2010 (2011)

BS EN 621 09-1 :201 Incorpora ting July 201 corrigendum BSI Standards Publication Safety of power converters for use in photovoltaic power systems Part : General requirements BS EN 621 09-1 :201 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 621 09-1 :201 It is identical to IEC 621 09-1 :201 The UK participation in its preparation was entrusted to Technical Committee GEL/82, Photovoltaic Energy Systems A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © BSI 201 ISBN 978 580 76282 ICS 27.1 60 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 201 Amendments issued since publication Date Text affected July 201 Correction to missing Annex J B S E N 621 09-1 : 201 EN 621 09-1 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM July 201 ICS 27.1 60 English version Safety of power converters for use in photovoltaic power systems Part : General requirements (IEC 621 09-1 :201 0) Sécurité des convertisseurs de puissance utilisés dans les réseaux d’énergie photovoltaïque Partie : Exigences générales (CEI 621 09-1 :201 0) Sicherheit von Wechselrichtern zur Anwendung in photovoltaischen Energiesystemen Teil : Allgemeine Anforderungen (IEC 621 09-1 :201 0) This European Standard was approved by CENELEC on 201 0-07-01 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 7, B - 000 Brussels © 201 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 621 09-1 :201 E B S EN 621 09-1 : 201 EN 621 09-1 :201 -2- Foreword The text of document 82/593/FDIS, future edition of IEC 621 09-1 , prepared by IEC TC 82, Solar photovoltaic energy systems, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 621 09-1 on 201 0-07-01 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 national standard or by endorsement (dop) 201 -04-01 – latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 201 3-07-01 Annex ZA has been added by CENELEC Endorsement notice The text of the International Standard IEC 621 09-1 :201 was approved by CENELEC as a European Standard without any modification B S E N 621 09-1 : 201 -3- EN 621 09-1 :201 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 IEC 60060-1 Year - IEC 60085 - IEC 601 - IEC 6021 6-1 - IEC 6021 6-2 - IEC 6021 6-3 - IEC 6021 6-4-1 - IEC 6021 6-5 - IEC 6021 6-6 - IEC 60227-1 2007 Title High-voltage test techniques Part : General definitions and test requirements Electrical insulation - Thermal evaluation and designation Method for the determination of the proof and the comparative tracking indices of solid insulating materials Electrical insulating materials - Properties of thermal endurance Part : Ageing procedures and evaluation of test results Electrical insulating materials - Thermal endurance properties Part 2: Determination of thermal endurance properties of electrical insulating materials Choice of test criteria Electrical insulating materials - Thermal endurance properties Part 3: Instructions for calculating thermal endurance characteristics Electrical insulating materials - Thermal endurance properties Part 4-1 : Ageing ovens - Single-chamber ovens Electrical insulating materials - Thermal endurance properties Part 5: Determination of relative thermal endurance index (RTE) of an insulating material Electrical insulating materials - Thermal endurance properties Part 6: Determination of thermal endurance indices (TI and RTE) of an insulating material using the fixed time frame method Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part : General requirements EN/HD HD 588.1 Year - EN 60085 - EN 601 - EN 6021 6-1 - EN 6021 6-2 - EN 6021 6-3 - EN 6021 6-4-1 - EN 6021 6-5 - EN 6021 6-6 - - - B S EN 621 09-1 : 201 EN 621 09-1 :201 Publication IEC 60245-1 -4Year 2003 Title EN/HD Rubber insulated cables - Rated voltages up to and including 450/750 V Part : General requirements IEC 60309 Series Plugs, socket-outlets and couplers for EN 60309 industrial purposes IEC 60320 Series Appliance couplers for household and similar EN 60320 general purposes IEC 60364-1 (mod) 2005 Low-voltage electrical installations HD 60364-1 Part : Fundamental principles, assessment of general characteristics, definitions IEC 60364-5-54 Electrical installations of buildings HD 60364-5-54 (mod) Part 5-54: Selection and erection of electrical equipment - Earthing arrangements, protective conductors and protective bonding conductors IEC 6041 Graphical symbols for use on equipment IEC 60529 Degrees of protection provided by enclosures EN 60529 (IP Code) IEC 60664 Series Insulation coordination for equipment within EN 60664 low-voltage systems IEC 60664-1 2007 Insulation coordination for equipment within EN 60664-1 low-voltage systems Part : Principles, requirements and tests IEC 60664-3 2003 Insulation coordination for equipment within EN 60664-3 low-voltage systems Part 3: Use of coating, potting or moulding for protection against pollution IEC 60664-4 2005 Insulation coordination for equipment within EN 60664-4 low-voltage systems + corr October Part 4: Consideration of high-frequency voltage stress IEC 60695-2-1 Fire hazard testing EN 60695-2-1 Part 2-1 : Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products IEC/TS 60695-2-20 Fire hazard testing Part 2-20: Glowing/hot wire based test methods - Hot-wire coil ignitability Apparatus, test method and guidance IEC 60695-1 -5 Fire hazard testing EN 60695-1 -5 Part 1 -5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance IEC 60695-1 -1 Fire hazard testing EN 60695-1 -1 Part 1 -1 0: Test flames - 50 W horizontal and vertical flame test methods IEC 60695-1 -20 Fire hazard testing EN 60695-1 -20 Part 1 -20: Test flames - 500 W flame test methods Year Series Series 2008 - Series 2007 2003 2006 2006 - - - - B S E N 621 09-1 : 201 -5Publication Year IEC 60730-1 (mod) 201 EN 621 09-1 :201 Title EN/HD Automatic electrical controls for household EN 60730-1 and similar use Part : General requirements IEC/TR 60755 General requirements for residual current operated protective devices IEC 60950-1 (mod) 2005 Information technology equipment - Safety - EN 60950-1 Part : General requirements + A1 IEC 60990 999 Methods of measurement of touch current and EN 60990 protective conductor current IEC 61 032 Protection of persons and equipment by EN 61 032 enclosures - Probes for verification IEC 61 80-1 High-voltage test techniques for low-voltage EN 61 80-1 equipment Part : Definitions, test and procedure requirements IEC 62020 Electrical accessories - Residual current EN 62020 monitors for household and similar uses (RCMs) ISO 78 Plastics - Determination of flexural properties EN ISO 78 ISO 79 Series Plastics - Determination of Charpy impact EN ISO 79 properties ISO 80 Plastics - Determination of Izod impact EN ISO 80 strength ISO 261 ISO general-purpose metric screw threads - General plan ISO 262 ISO general-purpose metric screw threads - Selected sizes for screws, bolts and nuts ISO 527 Series Plastics - Determination of tensile properties EN ISO 527 ISO 3746 Acoustics - Determination of sound power EN ISO 3746 levels of noise sources using sound pressure Survey method using an enveloping measurement surface over a reflecting plane ISO 4892-1 Plastics - Methods of exposure to laboratory EN ISO 4892-1 light sources Part : General guidance ISO 4892-2 Plastics - Methods of exposure to laboratory EN ISO 4892-2 light sources Part 2: Xenon-arc lamps ISO 4892-4 Plastics - Methods of exposure to laboratory light sources Part 4: Open-flame carbon-arc lamps ISO 7000 Graphical symbols for use on equipment Index and synopsis ISO 8256 Plastics - Determination of tensile-impact EN ISO 8256 strength ISO 961 4-1 Acoustics - Determination of sound power EN ISO 961 4-1 levels of noise sources using sound intensity Part : Measurement at discrete points 1) At draft stage Year 201 X1 ) 2006 2009 999 - Series Series - - B S EN 621 09-1 : 201 EN 621 09-1 :201 -6- Publication ISO 961 4-2 Year - ISO 961 4-3 - ANSI/ASTM E84 - ANSI/UL 746B - ANSI/UL 746C - ASTM E1 62 - Title EN/HD Acoustics - Determination of sound power EN ISO 961 4-2 levels of noise sources using sound intensity Part 2: Measurement by scanning Acoustics - Determination of sound power EN ISO 961 4-3 levels of noise sources using sound intensity Part 3: Precision method for measurement by scanning Standard Test Method for Surface Burning Characteristics of Building Materials Polymeric Materials - Long-Term Property Evaluations Polymeric Materials - Used in Electrical Equipment Evaluations Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source Year - - B S E N 621 09-1 : 201 –2– 621 09-1 © I EC: 201 0(E) CON TENTS FOREWORD I N TRODU CTI ON 1 Scope an d obj ect 1 Scope 1 Equ i pm ent incl u ded in scope 1 Equ i pm ent for wh ich other req u irem en ts m ay appl y 1 Obj ect 1 Aspects inclu d ed in scope 1 2 Aspects exclu d ed from scope N orm ative references Term s and d efi n itions General testin g req u irem en ts 25 4 General 25 General cond i tions for testin g 25 Seq u ence of tests 25 2 Reference test cond i ti on s 25 Therm al testing 28 General 28 M axim um tem peratures 28 4 Testi n g i n si ngl e fau lt cond i tion 31 4 General 31 4 Test d iti on s an d d urati on for testi ng u n d er fau lt di tions 31 4 Pass/fail cri teri a for testi ng un d er fau lt d iti ons 32 4 Sin g le fau lt d iti ons to be appl ied 33 H um id i ty precon d iti on i n g 36 General 36 Con di tions 36 Backfeed vol tag e protecti on 36 Backfeed tests u n d er norm al d iti ons 37 Backfeed tests u n d er si n gle-fau lt d iti ons 37 Com pl i ance wi th backfeed tests 37 Electrical rati ngs tests 37 I n put ratin gs 37 Output ratin gs 37 Markin g and d ocum entation 37 Markin g 37 General 37 Durability of m arkin gs 38 I d entification 38 Equ i pm ent rati ngs 38 Fuse i dentification 38 Term inals, n ecti ons and trols 39 Swi tch es an d circu it-breakers 39 Class I I eq u ipm ent 39 Term inal boxes for external nections 40 Warnin g m arkin gs 40 B S EN 621 09-1 : 201 621 09-1 –3– Visibi l ity an d l egi bi l ity req u irem en ts for warn i ng m arkings 40 2 Content for warn in g m arkings 40 Son ic h azard m arkin gs and instructi ons 41 Equ i pm ent wi th m ultipl e sources of su ppl y 41 5 Excessi ve touch current 41 Docum entation 42 General 42 I nform ati on related to instal lati on 42 3 I nform ati on related to operation 43 I nform ati on related to m nten ance 44 En vi ronm en tal req u irem ents an d cond i ti ons 44 En vi ronm en tal categories an d m in im um en vironm ental cond i ti ons 45 Outd oor 45 I n d oor, u ncon d iti on ed 45 I n d oor, cond i tion ed 45 Poll uti on d egree 46 I n gress protecti on 47 U V exposure 47 Tem perature and h um id ity 47 Protecti on ag nst el ectric sh ock and en erg y h azards 47 7 © I EC: 201 0(E) General 47 Fault cond itions 47 Protection agai nst el ectric sh ock 48 General 48 Decisi ve voltage classificati on 48 3 Protecti ve separation 52 Protecti on ag nst d irect tact 52 Protecti on i n case of d irect tact 57 Protecti on ag nst in d irect tact 60 7 I nsu lation i nclud i n g cl earance an d creepage d istances 68 Resi du al Curren t Detecti on (RCD) or M on i tori n g (RCM) d evice com patibili ty 79 Protecti on agai nst sh ock hazard d ue to stored en erg y 80 Protection agai nst en ergy h azards 80 Determ i nation of h azard ous energ y l evel 80 Operator access areas 81 Service access areas 81 Electrical tests related to sh ock h azard 81 I m pulse vol tage test (type test) 81 Vol tag e test (d i electric stren gth test) (type test an d routine test) 83 Parti al d isch arge test (type test or sam pl e test) 87 Touch cu rrent m easurem en t (type test) 88 5 Equ i pm ent wi th m ultipl e sources of su ppl y 89 Protection against m echan ical h azards 89 General 89 Movin g parts 90 Protecti on of service persons 90 Stabil i ty 90 Provisi ons for liftin g and carryin g 91 B S EN 621 09-1 : 201 621 09-1 © I EC: 201 0(E) – 39 – RCDs su i tabl e to be trig gered by d ifferin g waveform s of resi d ual current are m arked with th e fol l owing sym bols, as defi ned i n I EC 60755: Type AC: – a c curren t sensi ti ve Type A: – a c current sensiti ve an d pu lse curren t sensiti ve Type B: – u ni versal current sensitive B S E N 621 09-1 : 201 – 40 – 621 09-1 © I EC: 201 0(E) Annex F (informative) Altitude correction for clearances Table F.1 – Correction factor for clearances at altitudes above 000 m (see 7.3.7.4.1 ) Altitude m Normal barometric pressure kPa Multiplication factor for clearances 000 80, , 00 000 70, ,1 4 000 62, , 29 000 54, , 48 000 47, , 70 000 41 , , 95 000 35, 2, 25 000 30, 2, 62 000 26, 3, 02 000 2, 6, 67 20 000 5, 4, 50 Table F.2 – Test voltages for verifying clearances at different altitudes The voltage val u es of Table F appl y for th e verificati on of cl earances onl y Impulse test voltage at Impulse voltage Impulse test voltage at Impulse test voltage at 500 m altitude 200 m altitude sea level (from Table , column 6) kV kV kV kV 0, 33 0, 36 0, 36 0, 35 0, 50 0, 54 0, 54 0, 53 0, 80 0, 93 0, 92 0, 90 , 50 ,8 ,7 ,7 2, 50 2, 2, 2, 4, 00 4, 4, 4, 6, 00 7, 7, 7, 8, 00 9, 9, 9, 2, 00 15 14 14 N OTE E xpl an ati on s concerni ng th e i nfl uenci n g factors (ai r pressu re, alti tu d e, tem peratu re, h um i di ty) wi th respect to el ectri c strength of cl earances are gi ven i n 2 of I EC 60664-1 N OTE When testi ng cl earan ces, associ ated sol i d i n sul ati on wi l l be su bj ected to the test vol tage As the im pul se test vol tag e i s i ncreased with respect to the rated i m pul se vol tag e, sol i d i n sul ati on wi l l have to be d esi gn ed accordi ngl y Thi s resul ts i n an i ncreased i m pu l se wi th stand capabi l i ty of th e soli d in sul ation N OTE Valu es gi ven above h ave been rou nd ed from the cal cu l ation i n 2 of I EC 60664-1 B S EN 621 09-1 : 201 621 09-1 © I EC: 201 0(E) – 41 – Annex G (informative) Clearance and creepage distance determination for frequencies greater than 30 kHz G.1 Clearances Fundamental frequency of working voltage above 30 kHz Clearance Clearance determined according to impulse voltage or temporary overvoltage in 7.3.7.4 Approximately homogeneous field conditions according to IEC 60664-4, 4.3 25 % of the clearance determined according to working voltage in 7.3.7.4 Inhomogeneous field condition according to IEC 60664-4, 4.4 Clearance from IEC 60664-4, Table based on the recurring peak of the working voltage Minimum clearance is the greater of these values IEC 598/10 N OTE For frequ en ci es exceedi ng 30 kH z, an approxi m atel y hom ogeneou s fi el d i s consi d ered to exi st wh en th e rad i u s of cu rvature r of the cond ucti ve parts i s eq u al or g reater than 20 % of th e cl earance The necessary rad i u s of cu rvatu re can on l y be speci fi ed at th e en d of the d im ensi on i ng procedu re Figure G.1 – Clearance distance determination for frequencies greater than 30 kHz B S E N 621 09-1 : 201 – 42 – 621 09-1 © I EC: 201 0(E) Table G – M inimu m values of clearances in r at atmosph eri c pressu re for inhomog en eou s fi eld condi tion s (Tabl e of I EC 60664-4) G.2 Peak vol tag e a Cl earance kV mm ≤ 0, b 0, 065 0, 0, ,0 0, ,2 ,4 ,4 2, 35 ,6 4, ,8 6, 2, 1 ,0 a For vol tages between th e val ues stated i n th i s table, i nterpol ati on i s perm i tted b N o d ata i s avai l abl e for peak vol tages l ess th an 0, kV Creepage distances Fundamental frequency of working voltage above 30 kHz Creepage distance Creepage distance according to IEC 60664-4, Table based on the recurring peak of the working voltage IEC 599/10 Figu re G – Creepag e distan ce determ in ation for freq uencies g reater than 30 kHz B S EN 621 09-1 : 201 621 09-1 © I EC: 201 0(E) – 43 – Table G.2 – M inimum values of creepage distances for different frequency ranges (Table of IEC 60664-4) Peak voltag e a b f≤ kV 30 kHz < f ≤ 00 kHz 0, 0, 01 67 0, 0, 042 0, 2, 0, 0, 083 0, 09 0, 09 0, 09 0, 09 0, 20 0, 0, 25 0, 0, 0, 0, 35 4, 0, 0, 83 0, 0, 25 0, ,5 20 0, 0, 267 0, 27 0, 0, 85 0, 0, 358 0, 38 0, 68 ,9 20 0, 0, 45 0, 55 ,1 3, 0, 0, 525 0, 82 ,9 8, 18 0, M Hz f≤ Creepage distance a, b mm 0, M Hz f ≤ 0, M Hz f ≤ M Hz f≤ M Hz f≤ M Hz 0, 0, ,1 ,1 0, 683 ,7 ,2 0, 85 2, 8, ,3 ,2 3, ,4 , 65 ,5 2, 7, ,6 3, ,7 4, ,8 6, The val ues for th e creepage di stan ces in th e tabl e appl y for pol l uti on degree For pol l ution d eg ree a m u l ti pl i cati on factor of , and for pol l uti on d eg ree a m ul ti pli cati on factor , shal l be used I nterpol ati on between col um ns i s perm itted B S E N 621 09-1 : 201 – 44 – 621 09-1 © I EC: 201 0(E) Annex H (informative) Measuring instrument for touch current measurements (see 7.5.4) H.1 Measuring instrument The m easuri ng instrum en t of Figure H is from Fi gure of I EC 60990 A RS CS R1 Test terminals B RB U1 C1 U2 IEC 600/10 Key RS RB R1 CS C1 500 Ω 500 Ω kΩ 0,22 μF 0,022 μF Voltmeter or oscilloscope (r.m.s or peak reading) Input resistance: >1 M Ω Input capacitance: