Article 720 covers circuits and equipment that operate at what voltage or less?

Article 720 of the National Electrical Code (NEC) specifically addresses the requirements for circuits and equipment that operate at 50 volts or less. This includes low voltage communication systems, which are commonly found in various applications such as telecommunications, signaling, and control systems.

Understanding the significance of this voltage limit is essential for safely designing and installing low voltage systems. Circuits operating at 50 volts or lower are less likely to pose a shock hazard when properly installed, which is a vital consideration in maintaining safety standards.

In this context, the other voltage limits mentioned do not align with the definitions and applications stated in Article 720. Voltages higher than 50 volts may fall into different categories under the NEC, which could impose additional safety requirements and regulations, emphasizing the importance of knowing these standards for compliance and safety in low voltage work.