Essential ratings and characteristics of semiconductor devices and general principles of measuring methods. Part 2 : General principles of measuring methods.

This document represents a third supplement issued in 1970 by the International Electrotechnical Commission, formally designated as IEC 60147-2C:1970. It serves to update or modify specific provisions within the original publication associated with electrical accessories for household and similar purposes. The supplement introduces technical adjustments or clarifications intended to ensure consistency across international markets and regulatory frameworks. It addresses particular aspects related to product safety, performance criteria, or testing methodologies without altering the fundamental structure of the parent standard. The content is structured to facilitate implementation by manufacturers, regulators, and testing laboratories operating globally. It reflects the collaborative efforts of international experts to maintain alignment with evolving technological advancements and safety requirements. This document is part of a broader series aimed at harmonizing technical specifications for electrical components used in residential and commercial settings. Its issuance follows established procedural guidelines to ensure accuracy and relevance to current industry needs. The supplement acts as a reference point for compliance verification and technical conformity assessment in the relevant field.