IEC 62852-2014 Connectors for DC-application in photovoltaic systems - Safety requirements and tests《光伏系统中的直流应用连接器 安全要求和试验》.pdf

1、 IEC 62852 Edition 1.0 2014-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Connectors for DC-application in photovoltaic systems Safety requirements and tests Connecteurs pour applications en courant continu pour systmes photovoltaques Exigences de scurit et essais IEC62852:2014-11(en-fr) THIS PUBLI

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19、rez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62852 Edition 1.0 2014-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Connectors for DC-application in photovoltaic systems Safety requirements and tests Connecteurs pour applications

20、en courant continu pour systmes photovoltaques Exigences de scurit et essais INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 27.160 PRICE CODE CODE PRIX ISBN 978-2-8322-1898-3 Registered trademark of the International Electrotechnical Commission Marque dpos

21、e de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 62852:2014 IEC 2014 CONTENTS FOREWORD . 4 1 Scope 6 2 Normat

22、ive references 6 3 Terms and definitions 8 4 Classification . 12 4.1 General . 12 4.2 Type of connector . 12 4.3 Additional characteristics 12 5 Constructional requirements and performance . 13 5.1 General . 13 5.2 Marking and identification . 13 Identification 13 5.2.1Marking . 13 5.2.2Technical do

23、cumentation . 13 5.2.35.3 Provision against incorrect mating (non-intermateable) . 14 5.4 Protection against electric shock . 14 5.5 Terminations and connection methods 14 5.6 Resistance to deterioration . 15 5.7 General design . 15 5.8 Design of a free connector 15 5.9 Degree of protection (IP Code

24、) . 16 5.10 Dielectric strength . 16 5.11 Mechanical and electrical durability . 16 5.12 Range of ambient temperature 16 5.13 Temperature rise 16 5.14 Cable anchorage . 16 5.15 Mechanical strength 17 5.16 Connector without locking device 17 5.17 Connector with locking device . 17 5.18 Clearances and

25、 creepage distances 17 General . 17 5.18.1Clearances 18 5.18.2Creepage distances . 18 5.18.35.19 Insulation parts . 20 General . 20 5.19.1Outer accessible parts . 20 5.19.2Inner parts . 20 5.19.35.20 Current carrying parts and resistance against corrosion 20 6 Tests . 20 6.1 General . 20 6.2 Prepara

26、tion of specimens . 21 6.3 Performance of tests . 22 General . 22 6.3.1Durability of marking 23 6.3.2Protection against electric shock . 23 6.3.3Temperature rise . 23 6.3.4IEC 62852:2014 IEC 2014 3 Mechanical operation . 23 6.3.5Bending (flexing) test (see IEC 60309-1:1999, 24.4) 24 6.3.6Measurement

27、 of clearances and creepage distances . 25 6.3.7Dielectric strength 25 6.3.8Corrosion test 26 6.3.9Mechanical strength at lower temperatures 26 6.3.10Change of temperature (IEC 60068-2-14 test Na) 26 6.3.11Damp heat test 26 6.3.12Insertion and withdrawal force . 27 6.3.13Effectiveness of connector c

28、oupling device 27 6.3.14Terminations and connecting methods . 27 6.3.156.4 Test schedule (routine test) for non-rewirable free connectors 28 6.5 Test schedule . 28 Annex A (informative) Warning symbols used on connectors . 35 Annex B (normative) Measurement of clearances and creepage distances . 36

29、Bibliography 40 Figure 1 Device for the bending test. 25 Figure A.1 Symbol “DO NOT DISCONNECT UNDER LOAD“ 35 Figure A.2 Symbol “DO NOT DISCONNECT UNDER LOAD” (IEC 60417-6070) . 35 Figure B.1 Examples of methods of measuring clearances and creepage distances 39 Table 1 Values for cable anchorage test

30、ing 17 Table 2 Rated impulse voltages and minimum clearances 18 Table 3 Creepage distances for basic insulation. . 19 Table 4 Plan of specimens required for tests 21 Table 5 Values of torque for screw-type clamping units 22 Table 6 Mechanical test group A (test group A are separate tests) . 28 Table

31、 7 Service life test group B 29 Table 8 Service life test group C 30 Table 9 Thermal test group D (mated test specimen) . 31 Table 10 Climatic test group E (mated test specimen) 32 Table 11 Degree of protection, test group F . 33 Table 12 Insulation material, test group G 34 Table B.1 Dimensions of

32、X . 36 4 IEC 62852:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ CONNECTORS FOR DC-APPLICATION IN PHOTOVOLTAIC SYSTEMS SAFETY REQUIREMENTS AND TESTS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national ele

33、ctrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specif

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42、d in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifyin

43、g any or all such patent rights. International Standard IEC 62852 has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. This International Standard is derived from EN 50521. The text of this standard is based on the following documents: FDIS Report on voting 82/878/FDIS

44、 82/905/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. IEC 62852:2014 IEC 2014 5 The committee has decided that the contents o

45、f this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 IEC 62852:2014 IEC

46、 2014 CONNECTORS FOR DC-APPLICATION IN PHOTOVOLTAIC SYSTEMS SAFETY REQUIREMENTS AND TESTS 1 Scope This International Standard applies to connectors for use in the d.c. circuits of photovoltaic systems according to class II of IEC 61140:2001 with rated voltages up to 1 500 V d.c. and rated currents u

47、p to 125 A per contact. This standard applies to connectors without breaking capacity but which might be engaged and disengaged under voltage. This standard also applies to connectors which are intended to be built-in or integrated in enclosures of devices for photovoltaic systems. This standard may

48、 be used as a guide for connectors in photovoltaic systems of classes 0 and III according to IEC 61140:2001 as well as for protection for Class II equipment intended for use at less than 50 V d.c. 2 Normative references The following documents, in whole or in part, are normatively referenced in this

49、 document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050 (all parts): International Electrotechnical Vocabulary (available at http:/www.electropedia.org) IEC 60060-1:2010, High-voltage test techniques Part 1: General definitions and test r