What does Article 410 require for luminaires designed for use in hazardous locations?

Article 410 of the National Electrical Code specifies that luminaires intended for use in hazardous locations must be listed for such use by a recognized testing agency. This requirement ensures that the lighting fixtures have been evaluated and certified to meet specific safety standards related to the unique conditions found in hazardous environments, such as areas where flammable gases, vapors, or dust exist.

The focus on proper listing is crucial for maintaining safety and compliance with regulations, as luminaires in these settings must demonstrate their ability to operate safely without igniting potentially explosive substances. Recognized testing agencies conduct thorough assessments to verify that the luminaires can withstand the environmental conditions and mitigate risks associated with the hazards present.

By ensuring that luminaires are appropriately listed, Article 410 helps protect workers and equipment from the dangers posed by hazardous materials, furthering the overall safety in the workplace.