BS-EN-50521-2008.pdf
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1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI British Standards WB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1 Connectors for photovoltaic systems Safety requirements and tests BS EN 50521:2008 Licensed Copy: London Sout
2、h Bank University, South Bank University, 02/02/2009 03:37, Uncontrolled Copy, (c) BSI National foreword This British Standard is the UK implementation of EN 50521:2008. The UK participation in its preparation was entrusted to Technical Committee GEL/82, Solar photovoltaic energy systems. A list of
3、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 2009 ISBN 978 0 580 62315 8 ICS 29.120.30 Compliance with a British
4、 Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. Date Text affected BRITISH STANDARDBS EN 50521:200 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2009. 8 Licensed Copy: London
5、South Bank University, South Bank University, 02/02/2009 03:37, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 50521 NORME EUROPENNE EUROPISCHE NORM November 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr E
6、lektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50521:2008 E ICS 29.120.30 English version Connectors for photovoltaic systems - Safety requi
7、rements and tests Connecteurs pour systmes photovoltaques - Exigences de scurit et essais Steckverbinder fr Photovoltaik-Systeme - Sicherheitsanforderungen und Prfungen This European Standard was approved by CENELEC on 2008-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Reg
8、ulations 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. T
9、his 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 memb
10、ers are the national electrotechnical committees of Austria, Belgium, Bulgaria, 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, Sloven
11、ia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 50521:2008 Licensed Copy: London South Bank University, South Bank University, 02/02/2009 03:37, Uncontrolled Copy, (c) BSI EN 50521:2008 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 82, Solar photov
12、oltaic energy systems. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50521 on 2008-10-01. 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
13、 by endorsement (dop) 2009-10-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-10-01 _ BS EN 5021:2008 Licensed Copy: London South Bank University, South Bank University, 02/02/2009 03:37, Uncontrolled Copy, (c) BSI 3 EN 50521:2008 Contents 1 Sco
14、pe . 5 2 Normative references . 5 3 Definitions . 7 4 Classification 10 4.1 General . 10 4.2 Type of connector . 10 4.3 Additional characteristics 10 5 Constructional requirements and performance 11 5.1 General . 11 5.2 Marking and identification . 11 5.3 Provision against incorrect mating (non-inte
15、rmateable) . 12 5.4 Protection against electric shock 12 5.5 Terminations and connection methods . 12 5.6 Resistance to ageing 13 5.7 General design 13 5.8 Design of a free connector 14 5.9 Degree of protection (IP-Code) . 14 5.10 Dielectric strength . 14 5.11 Mechanical and electrical durability 14
16、 5.12 Range of ambient temperature . 14 5.13 Temperature rise . 14 5.14 Cable anchorage . 15 5.15 Mechanical strength 15 5.16 Connector without locking device . 15 5.17 Connector with locking device 16 5.18 Clearances and creepage distances 16 5.19 Insulation . 17 5.20 Insulation parts 18 5.21 Curre
17、nt carrying parts and resistance against corrosion 18 6 Tests 18 6.1 General 18 6.2 Preparation of specimens 19 6.3 Performance of tests 20 6.4 Test schedule (routine test) for non-rewirable free connectors . 25 6.5 Test schedule . 26 Annex A (normative) Symbol . 33 Bibliography 34 Figures Figure 1
18、Device for the bending test 23 Figure A.1 Symbol “DO NOT DISCONNECT UNDER LOAD“ 33 BS EN 50521:2008 Licensed Copy: London South Bank University, South Bank University, 02/02/2009 03:37, Uncontrolled Copy, (c) BSI EN 50521:2008 4 Tables Table 1 Values for cable anchorage testing . 15 Table 2 Rated im
19、pulse voltages . 16 Table 3 Plan of specimens required for tests . 19 Table 4 Values of torque for screw-type clamping units . 20 Table 5 Test voltages . 24 Table 6 Mechanical test group A (test group A are for themselves separate tests) 26 Table 7 Service life test group B . 28 Table 8 Thermal test
20、 group C (mated test specimen) 29 Table 9 Climatic test group D (mated test specimen) 30 Table 10 Degree of protection, test group E 31 Table 11 Insulation material, test group F 32 BS EN 5021:2008 Licensed Copy: London South Bank University, South Bank University, 02/02/2009 03:37, Uncontrolled Cop
21、y, (c) BSI 5 EN 50521:2008 1 Scope This Standard applies to connectors of application Class A according to EN 61730-1 for use in photovoltaic systems 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 m
22、ight be engaged and disengaged under voltage. NOTE For connectors according to Class B and C of EN 61730 as well as for protection for Class II equipment intended for use between 0 V and 120 V d.c. in photovoltaic-systems this standard may be used as a guide. 2 Normative references The following ref
23、erenced 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. EN 50262:1998, Cable glands for electrical installations A1:2001 A
24、2:2004 EN 60068-1:1994, Environmental testing Part 1: General and guidance (IEC 60068-1:1988 + A1:1992 + corr. 1988) EN 60068-2-14, 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
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