IEC 62548-1:2023 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 and final power conversion equipment (PCE), but not including energy storage devices, loads or AC or DC distribution network supplying loads. The object of this document is to address the design safety requirements arising from the particular characteristics of photovoltaic systems. This document also includes extra protection requirements of PV arrays when they are directly connected with batteries at the DC level. This first edition cancels and replaces IEC 62548 published in 2016. This edition includes the following significant technical changes with respect to the previous edition: a) Revised provisions for systems including DC to DC conditioning units. b) Revision of mounting structure requirements. c) Revised cable requirements. d) Revision of Clause 6 on safety issues which includes provisions for protection against electric shock including array insulation monitoring and earth fault detection. e) Revision of 7.2.7 and 7.3 with respect to isolation means. f) Provisions for use of bifacial modules and modules mounted in non-optimal orientations. g) New Annex F containing: KI factor calculations for bifacial and non-optimally oriented systems; anti-PID equipment and arc flash.
IEC 60228 Conductors of insulated cables
IEC 60269-1 Low-voltage fuses - Part 1: General requirements
IEC 60269-6 Low-voltage fuses - Part 6: Supplementary requirements for fuse-links for the protection of solar photovoltaic energy systems
IEC 60228 Conductors of insulated cables
IEC 60269-1 Low-voltage fuses - Part 1: General requirements
IEC 60269-6 Low-voltage fuses - Part 6: Supplementary requirements for fuse-links for the protection of solar photovoltaic energy systems
IEC 60364-1 Low-voltage electrical installations - Part 1: Fundamental principles, assessment of general characteristics, definitions
IEC 60364-4 (all parts) Low-voltage electrical installations - Part 4: Protection for safety
IEC 60364-4-41:2005 Low-voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
IEC 60364-4-41:2005/AMD1:2017
IEC 60364-4-44:2007 Low-voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances
IEC 60364-4-44:2007/AMD1:2015
IEC 60364-4-44:2007/AMD2:2018
IEC 60364-5 (all parts) Electrical installations of buildings - Part 5: Selection and erection of electrical equipment
IEC 60364-5-52 Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems
IEC 60364-5-54 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors
IEC 60364-6 Low-voltage electrical installations - Part 6: Verification
IEC 60529 Degrees of protection provided by enclosures (IP Code)
IEC 60898-2 Circuit-breakers for overcurrent protection for household and similar installations - Part 2: Circuit-breakers for AC and DC operation
IEC 60898-3 Circuit-breakers for overcurrent protection for household and similar installations - Part 3: Circuit-breakers for DC operation
IEC 60947-1:2020 Low-voltage switchgear and controlgear - Part 1: General rules
IEC 60947-2 Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
IEC 60947-3 Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
IEC 61215 (all parts) Terrestrial photovoltaic (PV) modules - Design qualification and type approval
IEC 61439-1 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
IEC 61439-2 Low-voltage switchgear and controlgear assemblies - Part 2: Power switchgear and controlgear assemblies
IEC 61643-21 Low-voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
IEC 61643-22 Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
IEC 61643-31:2018 Low-voltage surge protective devices - Part 31: Requirements and test methods for SPDs for photovoltaic installations
IEC 61701 Photovoltaic (PV) modules - Salt mist corrosion testing
IEC 61730-1 Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction
IEC 61730-2 Photovoltaic (PV) module safety qualification - Part 2: Requirements for testing
IEC 61984 Connectors - Safety Requirements and tests
IEC 62109-1:2010 Safety of power converters for use in photovoltaic power systems - Part 1: General requirements
IEC 62109-2 Safety of power converters for use in photovoltaic power systems - Part 2: Particular requirements for inverters
IEC 62109-3 Safety of power converters for use in photovoltaic power systems - Part 3: Particular requirements for electronic devices in combination with photovoltaic elements
IEC 62305-2:2010 Protection against lightning - Part 2: Risk management
IEC 62305-3 Protection against lightning - Part 3: Physical damage to structures and life hazard
IEC 62440:2008 Electric cables with a rated voltage not exceeding 450/750 V - Guide to use
IEC 62446-1 Photovoltaic (PV) systems - Requirements for testing, documentation and maintenance - Part 1: Grid connected systems - Documentation, commissioning tests and inspection
IEC 62446-2 Photovoltaic (PV) systems - Requirements for testing, documentation and maintenance - Part 2: Grid connected systems - Maintenance of PV systems
IEC 62716 Photovoltaic (PV) modules - Ammonia corrosion testing
IEC 62817 Photovoltaic systems - Design qualification of solar trackers
IEC 62852 Connectors for DC-application in photovoltaic systems - Safety requirements and tests
IEC 62930:2017 Electric cables for photovoltaic systems with a voltage rating of 1,5 kV DC
IEC 62938 Photovoltaic (PV) modules - Non-uniform snow load testing
IEC 62941 Terrestrial photovoltaic (PV) modules - Quality system for PV module manufacturing
IEC 63027 Photovoltaic power systems - DC arc detection and interruption
IEC 63104 Solar trackers - Safety requirements
IEC 63112:2021 Photovoltaic (PV) arrays - Earth fault protection equipment - Safety and safety-related functionality
IEC TR 63226:2021 Managing risk related to photovoltaic (PV) systems on buildings
IEC TR 63227 Lightning and surge voltage protection for photovoltaic (PV) power supply systems
IEC TS 61836:2016 Solar photovoltaic energy systems - Terms, definitions and symbols
IEC TS 62738 Ground-mounted photovoltaic power plants - Design guidelines and recommendations
IEC TS 62804-1 Photovoltaic (PV) modules - Test methods for the detection of potential-induced degradation - Part 1: Crystalline silicon
IEC TS 63126:2020 Guideline for qualifying PV modules, components and materials for operation at high temperatures
IEC TS 63209-1 Photovoltaic modules - Extended-stress testing - Part 1: Modules