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Standard Snapshot: IEC 62115:2017 (2nd edition) establishes safety requirements for electric toys, covering everything from small button-battery-powered lights to large ride-on toys. The standard addresses electrical, mechanical, thermal, and optical radiation hazards, with significant updates to battery safety and LED…
Standard Snapshot: IEC 62116 provides a consensus test procedure to evaluate the efficacy of islanding prevention measures (anti-islanding) in utility-interconnected PV inverters. It defines test circuits, equipment specifications, test conditions, and pass/fail criteria for determining whether an inverter is “non-islanding.”…
Standard Snapshot: IEC 62117 specifies instrumentation requirements for monitoring adequate core cooling in PWR nuclear power plants during cold shutdown conditions. It addresses the unique challenges of reduced coolant inventory, partial core exposure, and low-pressure operation that occur during maintenance…
A comprehensive technical examination of IEC 62108, the international standard for design qualification and type approval of concentrator photovoltaic (CPV) modules and assemblies. This article covers the complete test sequence including thermal cycling, damp heat, UV preconditioning, hail impact, water…
Standard Snapshot: IEC 62109-2 defines the safety requirements for inverters used in photovoltaic (PV) power systems. It covers both stand-alone and grid-interactive inverters, addressing electric shock, fire, and arc-fault hazards specific to DC-AC conversion in solar energy systems. 1. Scope…
Standard Snapshot: IEC 62110 establishes standardized measurement procedures for determining electric and magnetic field (EMF) levels from AC power systems, including overhead transmission lines, underground cables, and substations, specifically addressing public exposure assessment. 1. Scope and Purpose IEC 62110:2009 provides…
Standard Snapshot: IEC PAS 62111, developed by EDF and processed by IEC TC 82, provides specifications for renewable energy systems used in rural areas not connected to the national grid. It classifies user needs into 4 categories and proposes a…
A comprehensive technical examination of IEC 62104, the international standard defining characteristics and measurement methods for headphones and earphones. This article covers frequency response measurement using artificial ears, impedance characterization, sensitivity determination, and total harmonic distortion testing, offering practical engineering…
An in-depth technical examination of IEC 62105, the professional digital audio interface standard for broadcast studio equipment. This article explores the serial transmission protocol based on the AES/EBU interface (IEC 60958), channel status data structures, synchronisation requirements, cable drive characteristics,…
A comprehensive technical examination of IEC 62106, the definitive international standard for the Radio Data System (RDS). This article explores the 57 kHz subcarrier modulation and coding, data group structures, Traffic Message Channel (TMC), RadioText, Open Data Applications (ODA), Enhanced…