EN 50521:2008
(Main)Connectors for photovoltaic systems - Safety requirements and tests
Connectors for photovoltaic systems - Safety requirements and tests
This 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. This standard applies to connectors without breaking capacity but might 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.
Steckverbinder für Photovoltaik-Systeme - Sicherheitsanforderungen und Prüfungen
Diese Norm gilt für Steckverbinder zur Verwendung in Photovoltaik-Anlagen mit Bemessungsspannungen bis 1 500 V DC und Bemessungsströmen bis 125 A je Kontakt nach Anwendungsklasse A der EN 61730-1. Sie gilt für Steckverbinder, die keine Schaltleistung haben, jedoch spannungsführend getrennt und gesteckt werden können. ANMERKUNG Diese Norm kann auch für Steckverbinder der Anwenderklasse B und C der EN 61730 sowie für Steckverbinder der Schutzklasse II im Bereich von 0 bis 120 V DC in Photovoltaik-Anlagen angewandt werden, in diesem Fall dient diese Norm als Leitfaden.
Connecteurs pour systèmes photovoltaïques - Exigences de sécurité et essais
La présente norme s’applique à des connecteurs de la classe d’application A conformes à la EN 61730-1, utilisés dans les systèmes photovoltaïques de tension assignée pouvant atteindre 1 500 V en courant continu et de courant assigné pouvant atteindre 125 A par contact. La présente norme s'applique à des connecteurs sans pouvoir de coupure mais qui peuvent être branchés et débranchés sous tension. NOTE La présente norme peut être utilisée comme guide pour des connecteurs conformes aux classes B et C de la EN 61730 ainsi que pour la protection des équipements de classe II utilisables entre 0 V et 120 V c.c. dans des systèmes photovoltaïques.
Konektoriji za fotonapetostne sisteme - Varnostne zahteve in preskusi
Ta standard se uporablja za konektorje razreda uporabe A v skladu s standardom EN 61730-1 za uporabo v fotonapetostnih sistemih z nazivnimi enosmernimi napetostmi do 1000 V in nazivnimi toki do 125 A na stik. Ta standard se uporablja za konektorje brez zmogljivosti prekinitve, vendar jih je mogoče priključiti in odstraniti pod napetostjo.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Konektoriji za fotonapetostne sisteme - Varnostne zahteve in preskusiSteckverbinder für Photovoltaik-Systeme - Sicherheitsanforderungen und PrüfungenConnecteurs pour systèmes photovoltaïques - Exigences de sécurité et essaisConnectors for photovoltaic systems - Safety requirements and tests31.220.10Plug-and-socket devices. Connectors27.160Solar energy engineeringICS:Ta slovenski standard je istoveten z:EN 50521:2008SIST EN 50521:2009en,fr,de01-december-2009SIST EN 50521:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 50521 NORME EUROPÉENNE
EUROPÄISCHE NORM November 2008
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische 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 requirements and tests
Connecteurs pour systèmes photovoltaïques -
Exigences de sécurité et essais
Steckverbinder für Photovoltaik-Systeme -Sicherheitsanforderungen und Prüfungen
This European Standard was approved by CENELEC on 2008-10-01. 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-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to 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 Central Secretariat has the same status as the official versions.
CENELEC members 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, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
(dop)
2009-10-01 – latest date by which the national standards conflicting with the EN have to be withdrawn
(dow)
2011-10-01 __________ SIST EN 50521:2009
– 3 – EN 50521:2008 Contents
1 Scope . 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-intermateable) . 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 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 Current 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 – Device for the bending test . 23 Figure A.1 – Symbol "DO NOT DISCONNECT UNDER LOAD" . 33 SIST EN 50521:2009
– 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 might 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 referenced 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 A2:2004 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 and letterings caused by rubbing of fingers and hands (IEC 60068-2-70:1995) EN 60068-2-75, Environmental testing – Part 2: Tests – Test 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 (IEC 60309-1:1999) EN 60352-2, Solderless connections – Part 2: Solderless crimped connections – General requirements, test methods and practical guidance (IEC 60352-2) EN 60352-3:1994, Solderless connections – Part 3: Solderless accessible insulation displacement connections –General requirements, test methods 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 connections – General requirements, test methods and practical guidance (IEC 60352-5) EN 60352-6, Solderless connections – Part 6: Insulation piercing connections – General requirements, test methods and practical guidance (IEC 60352-6) EN 60352-7, Solderless connections – Part 7: Spring clamp connections – General requirements, test methods 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) SIST EN 50521:2009
Part 2-3: Particular requirements for connecting devices as separate entities with insulation-piercing clamping units (IEC 60998-2-3) EN 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 clamping units for conductors from 0,2 mm2 up to 35 mm2 (included) (IEC 60999-1:1999) EN 60999-2:2003, Connecting devices – Electrical copper conductors – Safety requirements for screw-type and screwless-type clamping units – Part 2: Particular requirements for clamping units for conductors above 35 mm² up to 300 mm² (included) (IEC 60999-2:2003) EN 61140:2002, Protection against electric shock – Common aspects for installation 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 61215:2005) EN 61730-1, Photovoltaic (PV) module safety qualification – Part 1: Requirements fo
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