What code governs electrical installations to ensure safety and reliability?

The National Electrical Code (NEC) is the correct answer because it serves as the primary standard for electrical installation practices in the United States. Established by the National Fire Protection Association (NFPA), the NEC outlines safety requirements for electrical wiring and equipment in residential, commercial, and industrial settings.

The code is designed to protect people and property from electrical hazards, ensuring that installations are safe and minimize the risk of electrical fires or shocks. It is regularly updated to reflect new safety technologies and practices, making it a comprehensive resource for electrical safety regulations.

While other options may refer to additional regulations that could apply in specific situations or locations, the NEC provides the overarching guidelines that govern electrical installations nationwide, emphasizing its critical role in maintaining electrical safety and reliability.