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PD IEC/TS 62548:2013

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Photovoltaic (PV) arrays. Design requirements

Available format(s)

Hardcopy , PDF

Superseded date

31-10-2016

Language(s)

English

Published date

31-08-2014

FOREWORD
1 Scope and object
2 Normative references
3 Terms and definitions, symbols and
   abbreviations
4 Compliance with IEC 60364
5 PV array system configuration
6 Safety issues
7 Selection and erection of electrical equipment
8 Acceptance
9 Operation/maintenance
10 Marking and documentation
Annex A (informative) - Examples of signs
Annex B (informative) - Examples of system functional
        earthing configurations in PV arrays
Annex C (informative) - Blocking diode
Annex D (informative) - Arc fault detection and
        interruption in PV arrays
Annex E (informative) - DVC limits
Bibliography

Specifies design requirements for photovoltaic (PV) arrays including d.c. array wiring, electrical protection devices, switching and earthing provisions.

Committee
GEL/82
DevelopmentNote
Supersedes 08/30177777 DC & 11/30246431 DC. (08/2014)
DocumentType
Standard
Pages
64
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

This Technical Specification sets out design requirements for photovoltaic (PV) arrays including d.c. array wiring, electrical protection devices, switching and earthing provisions. The scope includes all parts of the PV array up to but not including energy storage devices, power conversion equipment or loads. The object of this Technical Specification is to address the design safety requirements arising from the particular characteristics of photovoltaic systems. Direct current systems, and PV arrays in particular, pose some hazards in addition to those derived from conventional a.c. power systems, including the ability to produce and sustain electrical arcs with currents that are not greater than normal operating currents. In grid connected systems the safety requirements of this Technical Specification are however critically dependent on the inverters associated with PV arrays complying with the requirements of IEC62109‑1 and IEC62109‑2 . Installation requirements are also critically dependent on compliance with IEC60364 series (see Clause4). PV arrays of less than 100W and less than 35V d.c. open circuit voltage at STC are not covered by this Technical Specification. Attention is drawn to AnnexD describing arc fault detection and interruption in PV arrays. It is expected that requirements for the use of this type of equipment will be included in this Technical Specification when reliable commercial equipment for detection of arcs in PV systems is available. NOTE1 This Technical Specification covers the protection requirements of PV arrays which develop as a result of the use of batteries in PV systems. NOTE2 Additional requirements may be needed for more specialized installations e.g. concentrating systems, tracking systems or building integrated PV.

VDE-AR-E 2283-4 : 2011
IEC 60364-5-54:2011 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors
IEC 60364-7-712:2017 Low voltage electrical installations - Part 7-712: Requirements for special installations or locations - Solar photovoltaic (PV) power supply systems
IEC 62246-1:2015 Reed switches - Part 1: Generic specification
IEC 60228:2004 Conductors of insulated cables
IEC 60269-6:2010 Low-voltage fuses - Part 6: Supplementary requirements for fuse-links for the protection of solar photovoltaic energy systems
IEC 60898:1995 Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installations
IEC 60050-811:1991 International Electrotechnical Vocabulary (IEV) - Part 811: Electric traction
IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
IEC 61215:2005 Crystalline silicon terrestrial photovoltaic (PV) modules - Design qualification and type approval
IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
IEC 61730-2:2016 Photovoltaic (PV) module safety qualification - Part 2: Requirements for testing
IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
IEC TS 61836:2007 Solar photovoltaic energy systems - Terms, definitions and symbols
IEC 61008-1:2010+AMD1:2012+AMD2:2013 CSV Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) - Part1: General rules
IEC 60364-5-53:2001+AMD1:2002+AMD2:2015 CSV Electrical installations of buildings - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control
IEC 60050-442:1998 International Electrotechnical Vocabulary (IEV) - Part 442: Electrical accessories
IEC 60332-1-2:2004+AMD1:2015 CSV Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test for vertical flame propagation for a single insulatedwire or cable - Procedure for 1 kW pre-mixed flame
IEC 61646:2008 Thin-film terrestrial photovoltaic (PV) modules - Design qualification and type approval
IEC 61829:2015 Photovoltaic (PV) array - On-site measurement of current-voltage characteristics
IEC 60904-2:2015 RLV Photovoltaic devices - Part 2: Requirements for photovoltaic reference devices
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV Low-voltage switchgear and controlgear - Part 1: General rules
EN 50521:2008/A1:2012 CONNECTORS FOR PHOTOVOLTAIC SYSTEMS - SAFETY REQUIREMENTS AND TESTS
IEC 61730-1:2016 Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction
IEC 60904-3:2016 Photovoltaic devices - Part 3: Measurement principles for terrestrial photovoltaic (PV) solar devices with reference spectral irradiance data
IEC 60898-2:2016 Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installations - Part 2: Circuit-breakers for AC and DC operation
IEC 62109-2:2011 Safety of power converters for use in photovoltaic power systems - Part 2: Particular requirements for inverters
IEC 62446:2009 Grid connected photovoltaic systems - Minimum requirements for system documentation, commissioning tests and inspection
IEC 60050-461:2008 International Electrotechnical Vocabulary (IEV) - Part 461: Electric cables
IEC 60050-826:2004 International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations
IEC 62305-4:2010 Protection against lightning - Part 4: Electrical and electronic systems within structures
IEC 60947-3:2008+AMD1:2012+AMD2:2015 CSV Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
IEC 62305-2:2010 Protection against lightning - Part 2: Risk management
IEC 60947-2:2016 Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
IEC 62109-1:2010 Safety of power converters for use in photovoltaic power systems - Part 1: General requirements
IEC 60445:2017 Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors
IEC 62305-3:2010 Protection against lightning - Part 3: Physical damage to structures and life hazard

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