Overview
IEC 61820-3-2:2023 is an international standard published by the International Electrotechnical Commission (IEC) that specifies the requirements for power supplies used in electrical installations for lighting and beaconing of aerodromes. This standard focuses particularly on power electronic converter systems (PECS) designed for aeronautical ground lighting (AGL) circuits with a series circuit topology.
This first edition replaces the earlier IEC 61822:2009 and introduces technical revisions to address advances in technology such as LED-based luminaires and new power supply systems beyond the traditional 6.6 A constant current regulators (CCR). It also incorporates updated safety requirements referencing IEC 62477-1:2022 and IEC 62477-2:2018.
Key Topics
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Scope and Applicability
The standard covers PECS powering AGL circuits, especially series circuits that may use 6.6 A constant current or other advanced configurations including LED luminaires.
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Classification of Devices
IEC 61820-3-2 introduces classes for power supply devices based on voltage, construction, and operational characteristics to standardize requirements.
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Environmental and EMC Requirements
Specifications ensure that PECS can operate reliably under aerodrome climatic and electromagnetic conditions.
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Functional Requirements
Guidelines include input voltage ranges, power ratings suitable for various AGL systems, brightness level control, remote interface communication protocols, output performance, and protective functions to maintain safety and operational integrity.
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Performance Criteria
The standard details efficiency, power factor, output current waveform, and voltage limitation requirements tailored for 6.6 A CCRs and new PECS designs.
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Design and Safety Considerations
Emphasizes robust mechanical and electrical design, local control and indication capabilities, clear markings, and protection against hazards including functional safety and cybersecurity.
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Testing Protocols
Defines type and routine tests to verify conformity with the standard, including visual inspections, performance tests, electromagnetic compatibility tests, environmental simulations, and protective function validation.
Applications
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Aeronautical Ground Lighting Systems
Ensures reliable power supplies for runway and taxiway lighting, approach lighting, and other beaconing applications essential for safe aerodrome operations.
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LED-Based AGL Systems
Supports the integration of modern LED luminaires requiring sophisticated power electronic converters, improving energy efficiency and system control.
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Series Circuit Topology Power Supplies
Standardizes power supply solutions for series-wired circuits which are common in aerodrome lighting, enabling consistent performance and compatibility.
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Maintenance and Safety Management
Provides criteria that help manufacturers, operators, and maintenance personnel uphold system reliability, reduce downtime, and enhance safety through standardized protective functions and diagnostic capabilities.
Related Standards
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IEC 61820-3-1
Covers power supplies for parallel circuit topologies in aeronautical lighting systems.
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IEC 62477-1:2022
Provides safety requirements for power electronic converter systems relevant to this standard.
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IEC 62477-2:2018
Supplements safety considerations with additional regulatory guidance.
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IEC 61822:2009
The previous standard for aeronautical ground lighting power supplies, now replaced by IEC 61820-3-2.
Summary
IEC 61820-3-2:2023 is a critical standard for ensuring the safety, reliability, and efficiency of power supplies used in aeronautical ground lighting series circuits. By addressing both traditional CCR-based systems and modern PECS solutions for LED lighting, it facilitates technological advancement while maintaining operational consistency in aerodrome lighting infrastructure. This standard benefits manufacturers, system integrators, and aerodrome operators committed to international best practices in aeronautical lighting power installations.