SIST EN 60061-3:2000

Overview

EN 60061-3:1993 (published by CLC) is Part 3 of the EN 60061 series covering gauges used with lamp caps and lamp holders for the control of interchangeability and safety. This consolidated edition incorporates the third edition (1969) plus supplements A–T valid on 1996-12-31 and has been adopted in national standards (for example SIST EN 60061-3:2000). The standard defines the purpose, use and acceptance of gauges that verify mechanical fit and safety-related interfaces between lamps and holders.

Key topics and requirements

While the consolidated text contains detailed measurement and procedural content, the core technical topics include:

• Purpose of gauges: tools to check dimensional compatibility and mounting features of lamp caps and holders.
• Gauge types: definitions of plug, ring, and limit gauges (inspection/acceptance gauges) for verifying interchangeability.
• Dimensional control: acceptance criteria for critical dimensions and tolerances that affect mechanical fit and electrical contact.
• Safety-related checks: features ensuring proper seating, retention, insulation clearance and prevention of unsafe connections.
• Marking and identification: guidance for identifying gauge types and usage instructions for test personnel.
• Use and maintenance: recommended calibration, handling and storage practices to keep gauges reliable for quality control.
• Consolidation and supplements: the edition incorporates multiple historical supplements, ensuring comprehensive coverage of revisions up to 1996.

(Exact gauge geometries, tolerance tables and test procedures are contained in the full text of EN 60061-3 and its supplements.)

Applications

EN 60061-3 is practical for organizations involved in:

• Lamp and lamp cap manufacturers - to design products that meet interchangeability requirements.
• Lamp holder (socket) manufacturers - to ensure matching dimensions for safe operation.
• Quality control and metrology labs - to perform routine acceptance testing using standardized gauges.
• Certification and compliance bodies - for conformity assessment and product approval.
• Importers, distributors and installers - to verify compatibility and reduce field failures. Using these gauges helps prevent mechanical misfits, electrical hazards and customer complaints while supporting compliance with European lamp/interchangeability requirements.

Related standards

• EN 60061 (series) - other parts cover definitions, dimensions and safety requirements for lamp caps and holders.
• National adoptions (e.g., SIST EN 60061-3:2000) - show how EN 60061-3 is implemented locally.

Keywords: EN 60061-3, lamp caps, lamp holders, gauges, interchangeability, safety, CLC, gauge standards, lamp testing.