What does Article 470 primarily address?

Article 470 of the National Electrical Code (NEC) specifically addresses resistors and reactors. This section outlines the requirements and regulations pertaining to these components, which are essential in electrical systems for managing current flow, voltage levels, and improving efficiency. Resistors are used to limit current and adjust voltage levels, while reactors (inductive devices) are used to create inductance within an electrical circuit.

Understanding the specifications in Article 470 is crucial for any electrician or engineer working with electrical systems, as it helps ensure safety and compliance with established electrical standards. The article provides guidelines for installation, ratings, and maintenance of these components, which are critical for the proper functioning of various electrical devices and systems.

Other topics like storage batteries, generators, and phase converters fall under different articles in the NEC, highlighting the specialized nature of Article 470 concerning resistors and reactors. This clarity is vital for professionals who need to navigate the NEC for installation and safety standards efficiently.