Which of the following articles deals with low voltage circuits under 50 volts?

The correct choice focuses on Article 720, which specifically addresses low voltage circuits operating at 50 volts or less. This article falls under the National Electrical Code (NEC) and is important for understanding the safety standards and regulations surrounding low voltage systems, such as those used in control circuits, signaling, and communication technologies. Article 720 encompasses various types of low voltage installations and ensures that they adhere to necessary safety measures to prevent electrical hazards.

Understanding the distinction of Article 720 is vital for electricians, particularly those working with low voltage systems, as it outlines the unique characteristics and requirements pertinent to these circuits. This knowledge is essential for ensuring compliance with electrical codes and facilitating safe installations and maintenance practices.