Disturbances in supply systems caused by household appliances and similar electrical equipment. Part 3 : Voltage fluctuations

This document addresses the electromagnetic compatibility issues generated by household appliances and similar electrical equipment within power supply systems. Specifically, it focuses on the third section dedicated to voltage fluctuations. The standard establishes technical requirements and test procedures to evaluate how such devices induce voltage variations in the electrical grid. It provides a framework for assessing the susceptibility of power systems to disturbances caused by the switching operations and operational modes of consumer electrical devices. By defining limits and measurement methods, it aims to ensure that the impact of these appliances does not degrade the quality of the power supply for other users connected to the same network. The content covers the necessary parameters for characterizing voltage dips, flicker, and other transient phenomena associated with the operation of common household machinery. This resource serves as a technical reference for manufacturers and testing facilities to verify compliance with established limits regarding electrical noise and instability introduced into the mains supply. The principles outlined assist in the development of equipment that operates efficiently without causing undue interference to the broader electrical infrastructure.