Which of the following is covered under Article 660?

Article 660 of the National Electrical Code specifically addresses the requirements for X-ray equipment. This article outlines safety practices, circuit arrangement, and installation guidelines to ensure not only the safe use of X-ray devices but also to mitigate potential hazards associated with their operation. It provides standards for the electrical considerations needed to safely operate X-ray systems, which include controls for exposure times and protection against radiation.

Contextually, while induction and dielectric heating equipment, electric vehicle charging systems, and sensitive electronic equipment all have relevant articles within the NEC—such as Article 640 for induction and dielectric heating and other sections pertaining to vehicle charging and sensitive electronics—they do not specifically fall under the purview of Article 660, which is solely focused on X-ray equipment. Therefore, understanding and applying the guidelines within Article 660 is crucial for professionals who work with X-ray technologies to ensure compliance and safety in their installations.