IEC 61347-1:2024

Overview

IEC 61347-1:2024 is the latest international standard that specifies the general safety requirements for controlgear used with electric light sources. This fourth edition, published by the International Electrotechnical Commission (IEC), supersedes the third edition from 2015 and its 2017 amendment. It applies to controlgear designed for direct current (DC) supplies up to 1500 V and alternating current (AC) supplies up to 1000 V at 50 Hz or 60 Hz.

The standard underwent a comprehensive technical revision, aligning safety and performance requirements with emerging technologies and modern applications in lighting controlgear. It addresses critical factors including insulation, thermal testing, moisture resistance, fire hazard testing, and new types of controlgear for emergency lighting and low-voltage applications.

Key Topics

1. General Safety Requirements IEC 61347-1:2024 defines mandatory safety practices for controlgear, covering construction, insulation, and electrical characteristics to ensure safe operation over the product lifecycle.

2. Updated Test Procedures The standard introduces clarified and enhanced testing methods including:

• Thermal testing requirements merged into a unified clause
• Moisture resistance test specifications
• Alternative DC electric strength tests
• Fire hazard resistance with updated criteria
• Routine electric strength testing revisions

3. Insulation and Marking More detailed requirements for control circuit insulation and appropriate marking are specified to enhance user safety and clear identification of controlgear functions.

4. Protection Against Electric Shock The standard sets new limits for touch current and voltage to reduce risk, including provisions for protective earth connections and for safety isolating controlgear that do not depend on the luminaire enclosure.

5. Creepage, Clearance, and Construction Creepage distances, clearances, and distances through insulation are now generally based on peak voltage values rather than RMS values, providing a higher safety margin in design.

6. Controlgear Types and Applications

• Removal of electromagnetic controlgear requirements reflecting market trends
• Introduction of protected emergency lighting controlgear
• Instructions for bridging capacitors
• Provisions for PELV (Protective Extra Low Voltage) applications
• Independent controlgear considerations related to IEC 60598 series

7. Document Reorganization and Annexes New annexes have been incorporated to assist with touch current measurement and provide detailed information on document reorganization for improved usability.

Applications

IEC 61347-1:2024 is essential for manufacturers, designers, and testing laboratories involved in the development and certification of controlgear for electric light sources. Its compliance ensures safe and reliable operation of controlgear for a wide range of lighting products including:

• LED drivers and electronic ballasts
• Emergency lighting controlgear
• Luminaire-integrated controlgear components
• Control systems for high voltage and low voltage lighting installations
• Devices requiring protection against electric shock, fire hazards, and thermal stress

By adhering to this standard, controlgear components meet global safety requirements crucial for residential, commercial, and industrial lighting solutions, contributing to enhanced energy efficiency and consumer protection.

Related Standards

IEC 61347-1:2024 references and updates normative standards important for controlgear safety and testing, including but not limited to:

• IEC 61558 series – Safety of transformers and power supply units
• IEC 60598 series – Luminaires, especially relating to independent controlgear testing
• Standards for PCB flame retardancy and fire resistance
• IEC 60335-1 – Safety of household and similar electrical appliances (related safety aspects)
• Other specialized standards covering insulation, creepage distances, and dielectric strength

These references ensure the comprehensive integration of safety principles across the electric lighting and controlgear industry.

By leveraging the enhancements in IEC 61347-1:2024, stakeholders can ensure that controlgear products comply with up-to-date international safety requirements, improving product reliability, reducing risk of electric shock, fire, and thermal failure, and supporting sustainable lighting technology advancements.