What is IEC 61000-4-16:2019?

IEC 61000-4-16:2019 is an international standard that defines the limits and test methods for voltage fluctuations and flicker caused by electrical and electronic equipment. It provides guidelines for measuring and evaluating the effects of voltage fluctuations and flicker on electrical systems, ensuring their compatibility and performance.

Understanding Voltage Fluctuations

Voltage fluctuations refer to the irregular changes in voltage levels in an electrical system. These fluctuations can originate from multiple sources, including power supply grids, motor drives, lightning strikes, or large energy-consuming appliances. Such fluctuations can impact the performance, reliability, and lifespan of various electronic devices connected to the electrical system.

Flicker: The Annoying Side Effect

Flicker refers to the visible rapid variations in brightness of a light source. It usually occurs due to voltage fluctuations, especially when connected to devices like incandescent lamps, LEDs, or screens. Flickering lights not only cause discomfort and annoyance but can also lead to health issues such as headaches, eyestrain, and reduced visual task performance.

The Importance of Compliance Testing

Compliance testing according to IEC 61000-4-16 ensures that electrical and electronic equipment meets the specified requirements for voltage fluctuations and flicker. By conducting these tests, manufacturers can verify the quality and performance of their products, minimizing the risk of malfunctions or undesired behavior under fluctuating voltage conditions.