Switches for household and similar fixed-electrical installations. Part 1 : General requirements

This document outlines the fundamental requirements applicable to switches designed for fixed electrical installations within residential buildings and similar environments. It establishes the general criteria that such devices must meet to ensure safe and reliable operation under normal conditions. The text covers essential aspects including general provisions, classification methods based on intended use, and basic performance expectations. It defines the parameters necessary for construction, including ratings, mechanical strength, and electrical endurance. The scope addresses various types of switching mechanisms used to control lighting, appliances, and other electrical circuits in domestic settings. Key considerations include insulation properties, temperature rise limitations, and the ability to withstand specific environmental stresses. Detailed specifications are provided regarding terminal connections, marking requirements, and protection against electric shock. This normative text serves as a baseline for the design and testing of these components, ensuring consistency and safety across different manufacturing processes. It focuses on the core technical attributes that define the functionality and durability of switches intended for fixed installation in households and comparable facilities.