What is the focus of Article 450 in the National Electrical Code?

Article 450 of the National Electrical Code specifically addresses the requirements for transformers, including the installations, handling, and safety of transformer vaults. This article delineates guidelines to ensure that transformers operate safely and efficiently, incorporating considerations for their construction, maintenance, and the protective measures necessary to guard against potential hazards.

Transformers are critical components of electrical distribution systems, and the stipulations found in Article 450 lead to design practices that promote safety regarding heat dissipation, fire prevention, and electrical shock hazards. The reference to transformer vaults is particularly significant as these structure-type installations must comply with safety measures that cater to the potential risks associated with the electrical equipment housed within.

The options regarding resistors, phase converters, and capacitors, while important in their respective contexts, do not fall within the scope of the information covered by Article 450 in the National Electrical Code. Therefore, focusing on transformers and transformer vaults aligns perfectly with the subject matter laid out in this article.