EN 50539-11-2013 en Low-voltage surge protective devices - Surge protective devices for specific application including d c - Part 11 Requirements and tests for SPDs in photovoltaic.pdf

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1、BS EN 50539-11:2013Low-voltage surge protective devices Surge protective devices for specific application including d.c. Part 11: Requirements and tests for SPDs in photovoltaic applications+A1:2014BS EN 50539-11:2013+A1:2014ForewordThis British Standard is the UK implementation of EN 50539-11:2013+

2、A1:2014. It supersedes BS EN 50539-11:2013, which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee PEL/37, Surge Arresters - High Voltage, to Subcommittee PEL/37/1, Surge Arresters - Low Voltage.A list of organizations represented on this subcommittee can be

3、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. The British Standards Institution 2014. Published by BSI Standards Limited 2014ISBN 978 0 580 85963 2ICS 29.120.50Complianc

4、e with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2013.Amendments/corrigenda issued since publicationDate Text affected30 November 2014 Implementation of CENELEC amen

5、dment A1:2014: EN foreword amendedBRITISH STANDARDEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B

6、- 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50539-11:2013 E ICS 29.120.50 English version Low-voltage surge protective devices - Surge protective devices for specific application including d.c. - Part 11:

7、Requirements and tests for SPDs in photovoltaic applications Parafoudres basse tension - Parafoudres pour applications spcifiques incluant le courant continu - Partie 11: Exigences et essais pour parafoudres connects aux installations photovoltaque berspannungsschutzgerte fr Niederspannung - berspan

8、nungsschutzgerte fr besondere Anwendungen einschlielich Gleichspannung - Teil 11: Anforderungen und Prfungen fr berspannungsschutzgerte fr den Einsatz in Photovoltaik-Installationen This European Standard was approved by CENELEC on 2012-10-15. CENELEC members are bound to comply with the CEN/CENELEC

9、 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 CEN-CENELEC Management Centre or t

10、o 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 CEN-CENELEC Management Centre has the same status as th

11、e official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxemb

12、ourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 50539-11:2013+A1October 2014. - 2 - Contents Page Foreword . 5 1 Scope 6 2 Normative references . 6 3 Terms, definitions and abbreviations 7 3.1 Terms an

13、d definitions . 7 3.2 Abbreviations . 12 4 Service conditions 13 4.1 Voltage . 13 4.2 Air pressure and altitude 13 4.3 Temperatures . 13 4.4 Humidity . 13 5 Classification 13 6 Requirements . 17 6.1 General requirements 17 6.2 Electrical requirements 18 6.3 Mechanical requirements . 20 6.4 Environme

14、ntal and material requirements . 21 6.5 Additional requirements for specific SPD designs . 22 6.6 Additional parameter if declared by the manufacturer . 22 7 Type tests . 22 7.1 General 22 7.2 General testing procedures 23 7.3 Indelibility of markings 30 7.4 Electrical tests 31 7.5 Mechanical tests

15、41 7.6 Environmental and material tests . 44 7.7 Additional tests for specific SPD designs 45 7.8 Additional tests for specific performance . 45 8 Routine and acceptance tests 46 8.1 Routine tests 46 8.2 Acceptance tests 46 BS EN 50539-11:2013+A1:2014EN 50539-11:2013+A1:2014 (E)- 3 - Annex A (normat

16、ive) Tests to determine the presence of a switching component and the magnitude of the follow current 47 A.1 General 47 A.2 Test to determine the presence of a switching (crowbar) component . 47 A.3 Test to determine the magnitude of the follow current . 47 Annex B (informative) Environmental tests

17、for outdoor SPDs. 48 B.1 Accelerated aging test with UV radiation . 48 B.2 Water immersion test . 48 B.3 Dielectric test 48 B.4 Temperature cycle test 49 B.5 Verification of resistance to corrosion 49 Annex C (normative) Temperature rise limits 50 Annex D (informative) Transient behaviour of the PV

18、Test source in 7.2.5.1 a) . 51 D.1 Transient behaviour of the PV test source acc. to class 7.2.5.1 51 D.2 Test setup using a semiconductor switch to determine the transient behaviour of a PV test source 51 D.3 Alternative test setup using a fuse . 52 Bibliography 54 Figure 1 Current branches vs. mod

19、es of protection of an SPD . 8 Figure 2 I configuration 15 Figure 3 U configuration . 15 Figure 4 L configuration . 15 Figure 5 configuration . 16 Figure 6 Y configuration . 16 Figure 7 Single mode SPDs to be connected in Y configuration . 16 Figure 8 I/V characteristics 29 Figure 9 Flow chart of te

20、sting to check the voltage protection level Up32 Figure 10 Flow chart of the operating duty test . 34 Figure 11 Test set-up for operating duty test . 35 Figure 12 Operating duty test timing diagram for test classes I and II 35 Figure 13 Additional duty test timing diagram for test class I 36 Figure

21、14 Sample preparation for SPD overload behaviour test (Y and U configuration) . 37 Figure 15 Sample preparation for SPD overload behaviour test (, L and I configuration) . 38 Figure D.1 Test setup using an adjustable semiconductor switch to determine the transient behaviour of a PV test source 51 Fi

22、gure D.2 Time behavior of voltage and current during switch-off operation of a semiconductor switch at a PV source ISC= 4 A, UOC= 640 V 51 Figure D.3 Semiconductor switch switch-off behaviour (normalised) with intersection point i(t) / u(t) 52 BS EN 50539-11:2013+A1:2014EN 50539-11:2013+A1:2014 (E)-

23、 4 - Figure D.4 i/u-characteristic of the PV test source calculated from the normalised current and voltage records in Figure D.3 52 Figure D.5 Test setup using a fuse to determine the transient behaviour of a PV test source . 52 Figure D.6 Normalised switch-off behaviour during operation of a fuse

24、rated 0,1 x ISCPVat a PV test source with intersection point i(t) / u(t) . 53 Figure D.7 i/u-characteristic of the PV test source calculated from the normalised current and voltage records in Figure D.6 53 Table 1 List of Abbreviations 12 Table 2 Tests of types 1 and 2 SPDs 13 Table 3 Compliant term

25、ination and connection methods. 21 Table 4 Environmental and material requirements 21 Table 5 Type test requirements for SPDs . 25 Table 6 Common pass criteria for type tests . 27 Table 7 Preferred parameters for class I test 28 Table 8 Specific source characteristics for operating duty tests 30 Tab

26、le 9 Specific source characteristics for overload behaviour tests 30 Table 10 Test application depending on connection configuration 38 Table 11 Dielectric withstand . 41 Table 12 Air clearances for SPDs 42 Table 13 Creepage distances for SPDs. 43 Table 14 Relationship between material groups and cl

27、assifications . 44 Table 15 Test conductors for rated load current test . 45 Table 16 Tolerances for proportional surge currents . 46 Table C.1 Temperature-rise limits 50 BS EN 50539-11:2013+A1:2014EN 50539-11:2013+A1:2014 (E)- 5 - Foreword This document (EN 50539-11:2013) has been prepared by CLC/T

28、C 37A “Low voltage surge protective devices“. The following dates are fixed: latest date by which this document has to beimplemented at national level by publication ofan identical national standard or byendorsement(dop) 2013-10-15 latest date by which the national standardsconflicting with this doc

29、ument have tobe withdrawn(dow) 2015-10-15 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. _ This standard covers the Principle Element

30、s of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC).BS EN 50539-11:2013+A1:2014EN 50539-11:2013+A1:2014 (E)Foreword to amendment A1 This document (EN 50539-11:2013/A1:2014) has been prepared by CLC/TC 37A “Low voltage surge protective

31、 devices“. The following dates are fixed: latest date by which this document hasto be implemented at national level bypublication of an identical nationalstandard or by endorsement(dop) 2015-07-25 latest date by which the nationalstandards conflicting with thisdocument have to be withdrawn(dow) 2017

32、-07-25 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Principle Elements of the Safety Objectives for Electr

33、ical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). - 6 - 1 Scope This European Standard defines the requirements and tests for SPDs intended to be installed on the d.c. side of photovoltaic installations to protect against induced and direct lightning effects. These de

34、vices are connected to d.c. power circuits of photovoltaic generators, rated up to 1 500 V. It takes into account that photovoltaic generators: behave like curent generators, that their nominal curent depends on the light intensity, that their short-circuit curent is almost equal to the nominal cure

35、nt, are connected in series and/or paralel combinations leading to a great variety of voltages, curentsand powers from a few hundreds of W (in residential installations) to several MW (photovoltaicfields).The very specific electrical parameters of PV installations on the d.c. side require specific t

36、est requirements for SPDs. SPDs with separate input and output terminal(s) that contain a specific series impedance between these terminal(s) (so called two port SPDs according to EN 61643-11) are currently not sufficiently covered by the requirements of this standard and require additional consider

37、ation. NOTE In general SPDs for PV applications do not contain a specific series impedance between the input/output terminals due to power efficiency considerations. SPDs complying with this standard are exclusively dedicated to be installed on the d.c. side of photovoltaic generators. PV installati

38、on including batteries and other d.c. applications are not taken into account and additional requirements and tests may be necessary for such applications. SPDs for which the manufacturers declares short circuit mode overload behaviour, shall require specific measures to ensure that such devices wil

39、l not endanger the operator during maintenance and replacement due to possible d.c. arcing. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies

40、. For undated references, the latest edition of the referenced document (including any amendments) applies. HD 588.1 S1:1991, High-voltage test techniques Part 1: General definitions and test requirements (IEC 60060-1:1989 + corrigendum Mar. 1990) EN 50521, Connectors for photovoltaic systems Safety

41、 requirements and tests EN 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state (IEC 60068-2-78) EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529) EN 60664-1:2007, Insulation coordination for equipment within low-voltage systems Part 1: Prin

42、ciples, requirements and tests (IEC 60664-1:2007) EN 61000-6-1, Electromagnetic compatibility (EMC) Part 6-1: Generic standards Immunity for residential, commercial and light-industrial environments (IEC 61000-6-1) EN 61000-6-3, Electromagnetic compatibility (EMC) Part 6-3: Generic standards Emissio

43、n standard for residential, commercial and light-industrial environments (IEC 61000-6-3) BS EN 50539-11:2013+A1:2014EN 50539-11:2013+A1:2014 (E)- 7 - EN 61180-1, High-voltage test techniques for low-voltage equipment Part 1: Definitions, test and procedure requirements (IEC 61180-1) EN 61643-11:2012

44、, Low-voltage surge protective devices Part 11: Surge protective devices connected to low-voltage power systems Requirements and tests methods (IEC 61643-11:2011, mod.) IEC 60050-151:2001, International Electrotechnical Vocabulary Part 151: Electrical and magnetic devices 3 Terms, definitions and ab

45、breviations For the purposes of this document, the following terms, definitions and abbreviations apply. 3.1 Terms and definitions 3.1.1 Surge Protective Device SPD device that contains at least one nonlinear component that is intended to limit surge voltages and divert surge currents Note 1 to entr

46、y: An SPD is a complete assembly, having appropriate connecting means. SOURCE: EN 61643-11:2012 3.1.2 one-port SPD SPD having no intended series impedance Note 1 to entry: A one port SPD may have separate input and output connections. SOURCE: EN 61643-11:2012 3.1.3 voltage switching type SPD SPD tha

47、t has a high impedance when no surge is present, but can have a sudden change in impedance to a low value in response to a voltage surge Note 1 to entry: Common examples of components used in voltage switching type SPDs are spark gaps, gas tubes and thyristors. These are sometimes called “crowbar ty

48、pe“ components. SOURCE: EN 61643-11:2012 3.1.4 voltage limiting type SPD SPD that has a high impedance when no surge is present, but will reduce it continuously with increased surge current and voltage Note 1 to entry: Common examples of components used in voltage limiting type SPDs are varistors an

49、d avalanche breakdown diodes. These are sometimes called “clamping type“ components. SOURCE: EN 61643-11:2012 3.1.5 combination type SPD SPD that incorporates both, voltage switching components and voltage limiting components. Note 1 to entry: The SPD may exhibit voltage switching, limiting or both. SOURCE: EN 61643-11:2012 3.1.6 modes of protection intended current path between terminals, that contains one or more protect