Lamp caps and holders together with gauges for the control of interchangeability and safety. Part 3 : Gauges.

This document establishes specialized measurement gauges designed for lamp holders and their corresponding bases, with a specific focus on verifying interchangeability and safety characteristics. It serves as a technical reference within the electrical lighting sector, detailing precise dimensional and geometric requirements for the tools used to assess compatibility between different lighting components. The standard addresses the third segment of a broader series, concentrating exclusively on the gauges themselves rather than the installation procedures or performance testing of finished lamps. Developed under the framework of an international standards organization, this publication aligns global manufacturing and inspection practices by defining uniform parameters. It ensures that lighting systems operate safely and efficiently by providing a consistent method for manufacturers and inspectors to validate that bases and holders meet necessary specifications. The content outlines the physical construction and tolerances for these measurement instruments, facilitating cross-border trade and regulatory compliance without referencing specific national implementations or temporal implementation details.