1、BSI Standards PublicationJunction boxes for photovoltaic modules Safety requirements and testsBS IEC 62790:2014BS EN 62790:2015BS EN 62790:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 62790:2015. It is identical to IEC 62790:2014. It supersedes BS IEC 62
2、790:2014, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee GEL/82, Photovoltaic Energy Systems.A list of organizations represented on this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 necessa
3、ry provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 90256 7ICS 27.160Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was pu
4、blished under the authority of the Standards Policy and Strategy Committee on 31 January 2015.Amendments/corrigenda issued since publicationDate Text affected31 May 2015 This corrigendum renumbers BS IEC 62790:2014 as BS EN 62790:2015, Annex ZA also addedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE
5、NORM EN 62790 March 2015 ICS 27.160 English Version Junction boxes for photovoltaic modules - Safety requirements and tests (IEC 62790:2014) Botes de jonction pour modules photovoltaques - Exigences de scurit et essais (IEC 62790:2014) Anschlussdosen fr Photovoltaik-Module - Sicherheitsanforderungen
6、 und Prfungen (IEC 62790:2014) This European Standard was approved by CENELEC on 2014-12-11. 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-
7、date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by trans
8、lation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, D
9、enmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Europea
10、n Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide f
11、or CENELEC Members. Ref. No. EN 62790:2015 E 2 BS EN 62790:2015EN 62790:2015 - 2 - Foreword The text of document 82/876/FDIS, future edition 1 of IEC 62790, prepared by IEC/TC 82 “Solar photovoltaic energy systems“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62790:20
12、15. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-09-13 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-1
13、2-11 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. Endorsement notice The text of the International Standard IEC 62790:2014 was appr
14、oved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60352-3 NOTE Harmonized as EN 60352-3. IEC 60352-4 NOTE Harmonized as EN 60352-4. IEC 60364-7-712 NOTE Harmonized as HD 60
15、364-7-712. IEC 60512-1 NOTE Harmonized as EN 60512-1. IEC 60695-10-2 NOTE Harmonized as EN 60695-10-2. IEC 61210 NOTE Harmonized as EN 61210. IEC 61215 NOTE Harmonized as EN 61215. IEC 61646 NOTE Harmonized as EN 61646. 3 BS EN 62790:2015EN 62790:2015 - 2 - Foreword The text of document 82/876/FDIS,
16、 future edition 1 of IEC 62790, prepared by IEC/TC 82 “Solar photovoltaic energy systems“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62790:2015. The following dates are fixed: latest date by which the document has to be implemented at national level by publication o
17、f an identical national standard or by endorsement (dop) 2015-09-13 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-12-11 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CE
18、NELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62790:2014 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following not
19、es have to be added for the standards indicated: IEC 60352-3 NOTE Harmonized as EN 60352-3. IEC 60352-4 NOTE Harmonized as EN 60352-4. IEC 60364-7-712 NOTE Harmonized as HD 60364-7-712. IEC 60512-1 NOTE Harmonized as EN 60512-1. IEC 60695-10-2 NOTE Harmonized as EN 60695-10-2. IEC 61210 NOTE Harmoni
20、zed as EN 61210. IEC 61215 NOTE Harmonized as EN 61215. IEC 61646 NOTE Harmonized as EN 61646. - 3 - EN 62790:2015 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively refe
21、renced in this 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. NOTE 1 When an International Publication has been modified by common modi
22、fications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year - - Electric cables for photovoltaic systems EN 50618 - IEC 60060-1 - Hi
23、gh-voltage test techniques - Part 1: General definitions and test requirements EN 60060-1 - IEC 60068-1 - Environmental testing - Part 1: General and guidance EN 60068-1 - IEC 60068-2-14 2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature EN 60068-2-14 2009 IEC 60068-2-70 -
24、 Environmental testing - Part 2: Tests - Test Xb: Abrasion of markings and letterings caused by rubbing of fingers and hands EN 60068-2-70 - IEC 60068-2-75 - Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests EN 60068-2-75 - IEC 60068-2-78 - Environmental testing - Part 2-78: Tests - T
25、est Cab: Damp heat, steady state EN 60068-2-78 - IEC 60228 - Conductors of insulated cables EN 60228 - IEC 60352-2 - Solderless connections - Part 2: Crimped connections - General requirements, test methods and practical guidance EN 60352-2 - IEC 60512-12-1 - Connectors for electronic equipment - Te
26、sts and measurements - Part 12-1: Soldering tests - Test 12a: Solderability, wetting, solder bath method EN 60512-12-1 - 4 BS EN 62790:2015EN 62790:2015 - 4 - Publication Year Title EN/HD Year IEC 60512-12-2 - Connectors for electronic equipment - Tests and measurements - Part 12-2: Soldering tests
27、- Test 12b: Solderability, wetting, soldering iron method EN 60512-12-2 - IEC 60529 - Degrees of protection provided by enclosures (IP Code) EN 60529 - IEC 60664-1 2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests EN 60664-1 2007 IEC/T
28、R 60664-2-1 - Insulation coordination for equipment within low-voltage systems - Part 2-1: Application guide - Explanation of the application of the IEC 60664 series, dimensioning examples and dielectric testing - - IEC 60664-3 - Insulation coordination for equipment within low-voltage systems - Par
29、t 3: Use of coating, potting or moulding for protection against pollution EN 60664-3 - IEC 60695-2-11 - Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT) EN 60695-2-11 - IEC 60695-11-10 - Fire hazard testing - Part 11-1
30、0: Test flames - 50 W horizontal and vertical flame test methods EN 60695-11-10 - IEC 60695-11-20 1999 Fire hazard testing - Part 11-20: Test flames - 500 W flame test methods EN 60695-11-20 1999 IEC/TR 60943 - Guidance concerning the permissible temperature rise for parts of electrical equipment, i
31、n particular for terminals - - IEC 60947-7-1 - Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors EN 60947-7-1 - IEC 60998-2-1 - Connecting devices for low-voltage circuits for household and similar purposes - Part 2-1: Particular requireme
32、nts for connecting devices as separate entities with screw-type clamping units EN 60998-2-1 - IEC 60998-2-2 - Connecting devices for low-voltage circuits for household and similar purposes - Part 2-2: Particular requirements for connecting devices as separate entities with screwless-type clamping un
33、its EN 60998-2-2 - 5 BS EN 62790:2015EN 62790:2015 - 4 - Publication Year Title EN/HD Year IEC 60512-12-2 - Connectors for electronic equipment - Tests and measurements - Part 12-2: Soldering tests - Test 12b: Solderability, wetting, soldering iron method EN 60512-12-2 - IEC 60529 - Degrees of prote
34、ction provided by enclosures (IP Code) EN 60529 - IEC 60664-1 2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests EN 60664-1 2007 IEC/TR 60664-2-1 - Insulation coordination for equipment within low-voltage systems - Part 2-1: Application
35、 guide - Explanation of the application of the IEC 60664 series, dimensioning examples and dielectric testing - - IEC 60664-3 - Insulation coordination for equipment within low-voltage systems - Part 3: Use of coating, potting or moulding for protection against pollution EN 60664-3 - IEC 60695-2-11
36、- Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT) EN 60695-2-11 - IEC 60695-11-10 - Fire hazard testing - Part 11-10: Test flames - 50 W horizontal and vertical flame test methods EN 60695-11-10 - IEC 60695-11-20 1999
37、 Fire hazard testing - Part 11-20: Test flames - 500 W flame test methods EN 60695-11-20 1999 IEC/TR 60943 - Guidance concerning the permissible temperature rise for parts of electrical equipment, in particular for terminals - - IEC 60947-7-1 - Low-voltage switchgear and controlgear - Part 7-1: Anci
38、llary equipment - Terminal blocks for copper conductors EN 60947-7-1 - IEC 60998-2-1 - Connecting devices for low-voltage circuits for household and similar purposes - Part 2-1: Particular requirements for connecting devices as separate entities with screw-type clamping units EN 60998-2-1 - IEC 6099
39、8-2-2 - Connecting devices for low-voltage circuits for household and similar purposes - Part 2-2: Particular requirements for connecting devices as separate entities with screwless-type clamping units EN 60998-2-2 - - 5 - EN 62790:2015 Publication Year Title EN/HD Year IEC 60999-1 1999 Connecting d
40、evices - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units - Part 1: General requirements and particular requirements for clamping units for conductors from 0,2 mm up to 35 mm (included) EN 60999-1 2000 IEC 60999-2 - Connecting devices - Electrical c
41、opper conductors - Safety requirements for screw-type and screwless-type clamping units - Part 2: Particular requirements for clamping units for conductors above 35 mm up to 300 mm (included) EN 60999-2 - IEC 61032 - Protection of persons and equipment by enclosures - Probes for verification EN 6103
42、2 - IEC 61140 2001 Protection against electric shock - Common aspects for installation and equipment EN 61140 2002 IEC 61730-1 - Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction EN 61730-1 - IEC 61730-2 (mod) 2004 Photovoltaic (PV) module safety qualification - P
43、art 2: Requirements for testing EN 61730-2 2007 IEC 62852 - Connectors for DC-application in photovoltaic systems - Safety requirements and tests EN 62852 - ISO 868 2003 Plastics and ebonite - Determination of indentation hardness by means of a durometer (Shore hardness) EN ISO 868 2003 ISO 4892-2 2
44、013 Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps EN ISO 4892-2 2013 ISO 4892-3 2006 Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps EN ISO 4892-3 2006 2 IEC 62790:2014 IEC 2014 CONTENTS FOREWORD . 5 1 Scope 7 2 Normati
45、ve references 7 3 Terms and definitions 9 4 Constructional requirements and performance . 13 4.1 General . 13 4.2 Marking and identification . 13 4.2.1 Identification 13 4.2.2 Marking . 14 4.2.3 Technical documentation . 14 4.3 Protection against electric shock . 14 4.4 Terminations, connecting devi
46、ces and connection methods 14 4.5 Connectors . 15 4.6 Cable 15 4.7 Resistance to aging 15 4.8 General design . 16 4.9 Degree of protection (IP) . 16 4.10 Dielectric strength . 16 4.11 Range of ambient temperature 16 4.12 Cable anchorage . 16 4.13 Mechanical strength 17 4.14 Insulation 17 4.14.1 Type
47、 of insulation 17 4.14.2 Basic insulation . 17 4.14.3 Supplementary insulation . 17 4.14.4 Double insulation . 17 4.14.5 Reinforced insulation . 18 4.15 Clearances and creepage distances 18 4.15.1 Clearances 18 4.15.2 Creepage distances . 18 4.16 Insulation parts . 20 4.16.1 Outer accessible parts .
48、 20 4.16.2 Inner parts keeping active parts in position 20 4.17 Current carrying parts and resistance against corrosion 20 4.18 Sealing . 20 4.19 Bypass-diode 20 4.20 Knock-out inlets (outlets) intended to be removed by mechanical impact 21 5 Tests . 21 5.1 General . 21 5.2 Preparation of specimens
49、. 23 5.3 Performance of tests . 24 5.3.1 General . 24 5.3.2 Durability of marking 24 5.3.3 Fixing of lid on rewirable junction box 24 5.3.4 Protection against electric shock . 25 5.3.5 Measurement of clearances and creepage distances . 25 BS IEC 62790:2014BS EN 62790:2015IEC 62790:2014 IEC 2014 6 9111113171717171818181819191920202020202121212121212222222224242424242425252527282828282929 2 IEC 62790:2014 IEC 2014 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative references 7
