Ground-mounted PV system circuits that enter buildings housing PV equipment are subject to which requirements?

Ground-mounted photovoltaic (PV) system circuits that enter buildings housing PV equipment must adhere to specific conditions outlined in the National Electrical Code (NEC). In this context, it's important to recognize the specialized requirements in Article 690, which govern solar photovoltaic systems as well as provisions specifically tailored for how the circuits transition into and interact with building wiring.

When considering the distinction made by option C, the exemption from 690.12 requirements pertains specifically to the protocols for rapid shutdown of PV systems. This requirement is primarily applied to systems that are installed on or above roofs to address the unique safety concerns associated with roof-mounted installations. Ground-mounted systems, while they must adhere to other NEC regulations, do not need to comply with the rapid shutdown requirements found in this particular article.

Compliance with all other applicable NEC requirements is still necessary, as these address general electrical safety, load calculations, grounding, and equipment standards, as well as specific provisions for any conduit or conductors entering buildings. Understanding this clarification reinforces the framework of safety and compliance while navigating the specific needs of PV installations.

On the contrary, the other options indicate various levels of restrictions that do not accurately reflect the nuances of the code. The NEC ensures safety across the board, but rapid shutdown practices are distinct to