1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationConnectors forphotovoltaic systems Safety requirementsand testsBS EN 50521:2008BS EN 50521:2008+A1:2012National forewordThis British Standard is the UK implementation of EN 50521
2、:2008.The UK participation in its preparation was entrusted to Technical CommitteeGEL/82, Solar photovoltaic energy systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of ac
3、ontract. Users are responsible for its correct application. BSI 2009 ISBN 978 0 580 62315 8 ICS 29.120.30Compliance with a British Standard cannot confer immunity fromlegal obligations.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 50521:200This British Standard
4、was published under the authority of the StandardsPolicy and Strategy Committee on 31 January 2009. 8BS EN 50521:2008+A1:2012 BRITISH STANDARDis ritish Standard is the UK implementation of EN 50521:2008+A1:2012. It supersedes BS EN 50521:2008, which iswithdrawn.The start and finish of text introduce
5、d or altered by amendment isindicated in the text by tags. Tags indicating changes to CENELEC textcarry the number of the CENELEC amendment. For example, text alteredby CENELEC amendment A1 is indicated by .The UK participation in its preparation was entrusted to TechnicalCommittee GEL/82, Solar Pho
6、tovoltaic Energy Systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its orrect application. The British Standards Institution 2012.
7、Publ shed by BSI Standards Limited 2012ISBN 978 0 580 78452 1ICS 29.120.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2009.Amendments/corrigenda iss
8、ued since publicationDate Text affected30 September 2012 Implementation of CENELEC amendment A1:2012National forewordThis British Standard is the UK implementation of EN 50521:2008.The UK participation in its preparation was entrusted to Technical CommitteeGEL/82, Solar photovoltaic energy systems.A
9、 list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580 62315 8ICS 29.120.30Compliance with a Brit
10、ish Standard cannot confer immunity fromlegal obligations.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 50521:200This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 January 2009. 8EUROPEAN STANDARD EN 50521
11、NORME EUROPENNE EUROPISCHE NORMNovember 2008CENELEC European Committee forElectrotechnicalStandardization Comit Europen deNormalisation ElectrotechniqueEuropischesKomitee fr Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation
12、in any form and by any means reserved worldwide for CENELECmembers.Ref. No. EN 50521:2008 EICS 29.120.30English versionConnectors for photovoltaic systems - Safety requirements and testsConnecteurs poursystmesphotovoltaques -Exigences de scurit et essaisSteckverbinderfr Photovoltaik-Systeme -Sicherh
13、eitsanforderungen und PrfungenThis European Standard was approved by CENELEC on 2008-10-01. CENELEC members are bound to complywith 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-da
14、te lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any otherlanguage made by translation under t
15、he responsibility of a CENELEC member into its own language and notifiedto the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, theCzech Republic, Denmark, Estonia, Finland, France, Ge
16、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.BS EN 50521:2008EN 50521:2008+A1July 2012EN 50521:2008 2 ForewordThis European Standard was
17、prepared by the Technical Committee CENELEC TC82, Solar photovoltaic energy systems.The text of the draft was submitted to the Unique Acceptance Procedure and wasapproved by CENELEC asEN 50521 on 2008-10-01.The following dates were fixed: latest date by which the EN hasto be implemented at national
18、level bypublication of an identicalnational standard or by endorsement (dop) 2009-10-01 latestdate bywhich the national standards conflictingwith the EN havetobe withdrawn (dow) 2011-10-01_BS EN 5021:2008BS EN 50521:2008+A1:2012EN 50521:2008+A1:2012EN 50521:2008/A1:2012 - 2 - Foreword This document
19、(EN 50521:2008/A1:2012) has been prepared by CLC/TC 82 “Solar photovoltaic energy systems“. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-06-25 latest date by whi
20、ch the national standards conflicting with this document have to be withdrawn (dow) 2015-06-25 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
21、 rights. Foreword to amendment A1 3 EN 50521:2008Contents 1 Scope . 52Normative refrences 53Definitons 74Clasifcation 104.1 General . 104.2 Type ofconnector. 104.3 Additional characteristics 105Constructional requirements and performance 15.1 General. 115.2 Marking and identification . 115.3 Provisi
22、on against incorrect mating (non-intermateable). 125.4 Protection against electricshock 125.5 Terminationsand connection methods. 125.6 Resistance to ageing 135.7 Generaldesign 135.8 Design of a free connector 145.9 Degree ofprotection (IP-Code) . 145.10 Dielectricstrength. 145.11 Mechanical and ele
23、ctrical durability 145.12 Range of ambient temperature . 145.13 Temperature rise. 145.14 Cable anchorage. 155.15 Mechanical strength 155.16 Connector without locking device. 155.17 Connector with locking device 165.18 Clearancesand creepage distances 165.19 Insulation . 175.20 Insulationparts 185.21
24、 Current carrying parts and resistance against corrosion 186 Tests 186.1 General 186.2 Preparation ofspecimens 196.3 Performance of tests 206.4 Test schedule (routine test) fornon-rewirable free connectors. 256.5 Test schedule. 26Annex A (normative) Symbol . 33Bibliography 34FiguresFigure 1 Device f
25、or the bending test 23Figure A.1 Symbol“DO NOT DISCONNECT UNDER LOAD“ 33BS EN 50521:2008BS EN 50521:2008+A1:2012EN 50521:2008+A1:2012EN 50521:2008/A1:2012 - 2 - Foreword This document (EN 50521:2008/A1:2012) has been prepared by CLC/TC 82 “Solar photovoltaic energy systems“. The following dates are
26、fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-06-25 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2015-06-25 Attention is drawn to
27、 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. EN 50521:2008 4 Tables Table 1 Values for cable anchorage testing. 15Table 2 Rated impulse voltages. 16Tabl
28、e 3 Plan of specimens required for tests. 19Table 4 Values of torque for screw-type clamping units. 20Table 5 Test voltages. 24Table 6 Mechanical test group A (test group A are for themselves separate tests) 26Table 7 Service life test group B. 28Table 8 Thermal test group C (mated test specimen) 29
29、Table 9 Climatic test group D (mated test specimen) 30Table 10 Degree of protection, test group E 31Table 11 Insulation material, test group F 32BS EN 5021:2008BS EN 50521:2008+A1:2012EN 50521:2008+A1:2012 5 EN 50521:20081 Scope This Standard applies to connectors of application ClassA according to
30、EN 61730-1 for use in photovoltaicsystems with rated voltages up to 1 000 V d.c.and rated currents up to 125 A per contact.This standard applies to connectors without breaking capacity but might be engaged and disengaged undervoltage.NOTE For connectors according to Class B and C of EN 61730 as well
31、 as for protection for ClassII equipment intended for usebetween 0 V and 120 V d.c. in photovoltaic-systemsthisstandard may be used as a guide.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited
32、 applies. For undated references, the latest edition of the referenced document (including anyamendments) applies.EN 50262:1998, Cable glands for electrical installationsA1:2001A2:2004EN 60068-1:1994, Environmental testing Part 1: General and guidance (IEC 60068-1:1988 + A1:1992 + corr.1988)EN 60068
33、-2-14, Environmental testing Part 2: Tests Test N: Change of temperature (IEC 60068-2-14)EN 60068-2-70:1996, Environmental testing Part 2: Tests Test Xb: Abrasion of marking and letteringscaused by rubbing of fingers and hands (IEC 60068-2-70:1995)EN 60068-2-75, Environmental testing Part 2: Tests T
34、est Eh: Hammer tests (IEC 60068-2-75)EN 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state (IEC 60068-2-78)EN 60228, Conductors of insulated cables (IEC 60228)EN 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes Part 1: General requirements(IE
35、C 60309-1:1999)EN 60352-2, Solderless connections Part 2: Solderless crimped connections General requirements, testmethods and practical guidance (IEC 60352-2)EN 60352-3:1994, Solderless connections Part 3: Solderless accessible insulation displacement connections General requirements, test methods
36、and practical guidance (IEC 60352-3:1993)EN 60352-4:1994, Solderless connections Part 4: Solderless non-accessible insulation displacement connections General requirements, test methods and practical guidance (IEC 60352-4:1994)EN 60352-5, Solderless connections Part 5: Solderless press-in connection
37、s General requirements, testmethods and practical guidance (IEC 60352-5)EN 60352-6, Solderless connections Part 6: Insulation piercing connections General requirements, testmethods and practical guidance (IEC 60352-6)EN 60352-7, Solderless connections Part 7: Spring clamp connections General require
38、ments, testmethods and practical guidance (IEC 60352-7)EN 60512 series, Connectors for electronic equipment Tests and measurements (IEC 60512 series)EN 60512-1, Electromechanical components for electronic equipment Basic testing procedures and measuring methods Part 1: General (IEC 60512-1)BS EN 505
39、21:2008 EN 50521:2008erBS EN 50521:2008+A1:2012EN 50521:2008+A1:2012This European Standard applies to connectors of application Class A according to EN 61730-1 for use in photovoltaic systems with rated voltages up to 1 500 V DC and rated currents up to 125 A per contact.EN 50521:2008 6 EN 60512-11-
40、7:2003, Connectors for electronic equipment Tests and measurements Part 11- 7: Climatictests Test 11g: Flowing mixed gas corrosion test (IEC 60512-11-7:2003)EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)EN 60664-1:2003, Insulation coordination for equipment wi
41、thin low voltage systems Part 1: Principles,requirements and tests (IEC 60664-1:1992 + A1:2000 + A2:2002)EN 60695-2-10, Fire hazard testing Part 2-10: Glowing/hot-wire based test methods Glow-wire apparatusand common test procedure (IEC 60695-2-10)EN 60695-11-10, Fire hazard testing Part 11-10: Test
42、 flames 50 W horizontal and vertical flame testmethods (IEC 60695-11-10)EN 60998-2-3, Connecting devices for low-voltage circuits for household and similar purposes Part 2-3: Particular requirements for connecting devices as separate entities with insulation-piercing clamping units (IEC 60998-2-3)EN
43、 60999-1:2000, Connecting devices Electrical copper conductors Safety requirements for screw-type and screwless-type clamping units Part 1: General requirements and particular requirements for clampingunits for conductors from 0,2 mm2up to 35 mm2 (included) (IEC 60999-1:1999)EN 60999-2:2003, Connect
44、ing devices Electrical copper conductors Safety requirements for screw-type and screwless-type clamping units Part 2: Particular requirements for clamping units for conductors above35 mm up to 300 mm (included) (IEC 60999-2:2003)EN 61140:2002, Protection against electric shock Common aspects for ins
45、tallation and equipment (IEC 61140:2001)EN 61210:1995, Connecting devices Flat quick-connect terminations for electrical copper conductors Safety requirements (IEC 61210:1993, mod.)EN 61215:2005, Crystalline silicon terrestrial photovoltaic (PV) modules Design qualification and type approval (IEC 61
46、215:2005)EN 61730-1, Photovoltaic (PV) module safety qualification Part 1: Requirements for construction (IEC 61730-1, mod.)EN 61984, Connectors Safety requirements and tests (IEC 61984)HD 60364-7-712, Electrical installations of buildings Part 7-712: Requirements for special installations orlocatio
47、ns Solar photovoltaic (PV) power supply systems (IEC 60364-7-712)EN ISO 4892-2, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc sources(ISO 4892-2)EN ISO 6988:1994, Metallic and other non organic coatings Sulfur dioxide test with general condensation of moisture (ISO 6988:
48、1985)IEC 60050-581:1978, International Electrotechnical Vocabulary (IEV) Chapter 581: Electromechanical components for electronic equipmentIEC 60050-826:1982, International Electrotechnical Vocabulary (IEV) Chapter 826: Electrical installationsIEC 60060-1:1989, High-voltage test techniques Part 1: g
49、eneral definitions and test requirementsIEC/TR 60629 1), Standard sheets for a modular system (for installation accessories for use in domestic andsimilar installations)IEC 60760:1989, Flat, quick-connect terminations1)Withdrawn publication.BS EN 5021:2008BS EN 50521:2008+A1:2012EN 50521:2008+A1:2012 7 EN 50521:2008IEC/TR 60943, Guidance concerning the per
