• BS IEC 62548:2016

    Current The latest, up-to-date edition.

    Photovoltaic (PV) arrays. Design requirements

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-10-2016

    Publisher:  British Standards Institution

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    Scope - (Show below) - (Hide below)

    This International Standard sets out design requirements for photovoltaic (PV) arrays including DC 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. An exception is that provisions relating to power conversion equipment are covered only where DC safety issues are involved. The interconnection of small DC conditioning units intended for connection to PV modules are also included.

    The object of this document 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 AC 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 document are however critically dependent on the inverters associated with PV arrays complying with the requirements of IEC621091 and IEC621092 .

    Installation requirements are also critically dependent on compliance with the IEC60364 series (see Clause4).

    PV arrays of less than 100W and less than 35V DC open circuit voltage at STC are not covered by this document.

    PV arrays in grid connected systems connected to medium or high voltage systems are not covered in this document. Variations and additional requirements for large-scale ground mounted PV power plants with restricted access to personnel will also be addressed in IECTS62738 1 .

    Additional requirements may be needed for more specialized installations, for example concentrating systems, tracking systems or building integrated PV.

    The present international standard also includes extra protection requirements of PV arrays when they are directly connected with batteries at the DC level.

    General Product Information - (Show below) - (Hide below)

    Committee GEL/82
    Development Note Supersedes BS PD IEC TS 62548 and 15/30314469 DC. (10/2016)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60364-5-54:2011 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors
    UL 1699 : 3ED 2017 ARC-FAULT CIRCUIT-INTERRUPTERS
    IEC 61643-32:2017 Low-voltage surge protective devices - Part 32: Surge protective devices connected to the d.c. side of photovoltaic installations - Selection and application principles
    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 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 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
    EN 50618 : 2014 ELECTRIC CABLES FOR PHOTOVOLTAIC SYSTEMS
    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 60904-3 : 3.0 PHOTOVOLTAIC DEVICES - PART 3: MEASUREMENT PRINCIPLES FOR TERRESTRIAL PHOTOVOLTAIC (PV) SOLAR DEVICES WITH REFERENCE SPECTRAL IRRADIANCE DATA
    IEC 60269-1:2006+AMD1:2009+AMD2:2014 CSV Low-voltage fuses - Part 1: General requirements
    IEC 61643-21:2000+AMD1:2008+AMD2:2012 CSV Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
    IEC 60050-442:1998 International Electrotechnical Vocabulary (IEV) - Part 442: Electrical accessories
    IEC 60364-1:2005 Low-voltage electrical installations - Part 1: Fundamental principles, assessment of general characteristics, definitions
    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 61557-2:2007 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 2: Insulation resistance
    IEC 60364-6:2016 Low voltage electrical installations - Part 6: Verification
    IEC 61643-22:2015 Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
    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
    IEC 62852:2014 Connectors for DC-application in 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 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 61557-8:2014 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
    IEC 62109-1:2010 Safety of power converters for use in photovoltaic power systems - Part 1: General requirements
    EN 50539-11 : 2013 AMD 1 2014 LOW-VOLTAGE SURGE PROTECTIVE DEVICES - SURGE PROTECTIVE DEVICES FOR SPECIFIC APPLICATION INCLUDING D.C. - PART 11: REQUIREMENTS AND TESTS FOR SPDS IN PHOTOVOLTAIC APPLICATIONS
    IEC 60904-2 : 3.0EN+(REDLINE+VERSION) PHOTOVOLTAIC DEVICES - PART 2: REQUIREMENTS FOR PHOTOVOLTAIC REFERENCE DEVICES
    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
    UL 4703 : 4 PHOTOVOLTAIC WIRE
    IEC 60364-5-52:2009 Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems
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