Which NEC Article covers Closed Loop and Programmed Power Distribution?

Which NEC Article covers Closed Loop and Programmed Power Distribution?

• A. NEC Article 725
• B. NEC Article 760
• C. NEC Article 727
• D. NEC Article 780

Answer: (D)

This question tests recognizing where the NEC addresses equipment that actively regulates power distribution. Closed-loop and programmed power distribution refers to devices that monitor and adjust their output using feedback, such as programmable power distribution equipment (PDDE) used to control and stabilize power delivery. The NEC article that specifically covers Programmable Power Distribution Equipment is the one that fits this concept. It sets the requirements for design, installation, safety, and testing of these programmable distribution devices, including PDUs with built-in monitoring and control features. That focus makes it the best choice for closed-loop, programmable power distribution needs. The other articles cover different areas: one deals with limited-power Class 2 and Class 3 circuits, another with fire alarm and signaling systems, and the remaining article governs a different specialty not related to programmable power distribution equipment.

This question tests recognizing where the NEC addresses equipment that actively regulates power distribution. Closed-loop and programmed power distribution refers to devices that monitor and adjust their output using feedback, such as programmable power distribution equipment (PDDE) used to control and stabilize power delivery.

The NEC article that specifically covers Programmable Power Distribution Equipment is the one that fits this concept. It sets the requirements for design, installation, safety, and testing of these programmable distribution devices, including PDUs with built-in monitoring and control features. That focus makes it the best choice for closed-loop, programmable power distribution needs.

The other articles cover different areas: one deals with limited-power Class 2 and Class 3 circuits, another with fire alarm and signaling systems, and the remaining article governs a different specialty not related to programmable power distribution equipment.