Which article specifies requirements for bulk storage plants?

The correct selection pertains to Article 515 of the National Electrical Code (NEC), which covers the requirements for bulk storage plants. This article deals specifically with storage environments where flammable liquids are held in bulk quantities, addressing the electrical safety measures needed to minimize risks, particularly those associated with ignition sources in these potentially hazardous locations.

Article 515 establishes guidelines for the design, installation, and maintenance of electrical equipment in and around bulk storage plants, ensuring that safety standards are met to prevent fire and explosion hazards. It specifies the types of equipment that are necessary for use in these settings and outlines the protective measures required for the integrity of electrical installations.

Understanding the provisions of Article 515 is essential for professionals working in environments where flammable materials are stored, as adherence to these requirements is key to promoting workplace safety and compliance with the NEC.