Which article would you refer to for guidelines on capacitors?

The guidelines for capacitors are found in Article 460 of the National Electrical Code (NEC). This article specifically addresses the installation and use of capacitors in electrical systems, including their operation, safety requirements, and installation practices. Capacitors are critical components used in various applications such as power factor correction, energy storage, and filtering of electrical signals.

Article 460 outlines the requirements for capacitor circuits, including maximum voltage ratings, grounding, and enclosure requirements to ensure safe operation. Additionally, it discusses protective measures needed to prevent potential hazards associated with the discharge of stored energy from capacitors, ensuring both personnel safety and equipment protection.

The other articles do not directly pertain to capacitors. Article 455 deals with general requirements for capacitors that are part of motor-starting equipment and is less comprehensive. Article 480 is focused on storage batteries, while Article 490 pertains to the requirements for the installation of flexible cords and cables. Therefore, Article 460 is the appropriate reference for any guidelines or standards specifically related to capacitors.