EN 379: Personal Eye Protection – Automatic Welding Filters

EN 379 is a European standard that lays down the specifications and testing procedures for automatic welding filters used in personal eye protection. These specialized filters are designed to automatically adjust their light transmission to provide optimal protection when a welding arc is ignited. This standard is crucial for ensuring the safety and comfort of welders by regulating the performance of these dynamic filters. Let’s delve into the key features and importance of EN 379:

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1. Resource Filters with Changeable Scale Numbers

EN 379 encompasses two types of automatic welding filters. The first type, referred to as “resource filters with changeable scale numbers,” allows users to manually adjust the filter’s scale number to achieve the desired level of light transmission when welding. This flexibility is valuable, as different welding processes and conditions may require varying degrees of protection.

2. Source Filters with Automatic Scale Number Adjustment

The second type of automatic welding filter addressed by EN 379 is known as “source filters with automatic scale number adjustment.” These filters are particularly innovative as they automatically adapt their light transmittance based on the intensity of the welding arc. When the welding arc is ignited, the filter quickly darkens to protect the welder’s eyes from the intense light and radiation. When the arc is extinguished, the filter returns to a clearer state to provide better visibility. This dynamic adjustment ensures that welders have the necessary protection without compromising their ability to see their work.

3. Continuous Monitoring and Ignition Period

EN 379 is significant in cases where automatic welding filters are used for continuous monitoring of the welding process and only during the ignition period of the arc. In such scenarios, the standard’s requirements ensure that the filters meet the necessary safety and performance criteria, allowing welders to work effectively and safely.

4. Compliance and Testing

Manufacturers of automatic welding filters must adhere to EN 379 standards and subject their products to rigorous testing. This testing verifies that the filters meet the specified requirements for performance, durability, and safety. Compliance with EN 379 gives users confidence that their eye protection equipment will provide reliable and consistent protection.

5. Turkish Standards Institute (TSE)

The Turkish Standards Institute (TSE) has adopted and published EN 379 as a national standard in Turkey. This means that manufacturers and users of automatic welding filters in Turkey must follow the requirements outlined in EN 379 to ensure the safety and effectiveness of these filters.

In summary, EN 379 is a crucial European standard that governs the performance and safety of automatic welding filters used in personal eye protection. These filters, whether resource filters with changeable scale numbers or source filters with automatic scale number adjustment, are vital for safeguarding welders’ eyes from the intense light and radiation generated during welding processes. Compliance with EN 379 standards is essential to ensure that these filters deliver reliable and adaptable protection to workers in welding environments.