Which NFPA standard requires that all outlets be equipped with ground fault circuit interrupters?

The National Fire Protection Association (NFPA) standard that requires all outlets to be equipped with ground fault circuit interrupters (GFCIs) is NFPA 70E, which focuses on electrical safety in the workplace. This standard emphasizes the importance of protecting workers from electrical hazards, particularly in situations where water is present or in wet locations. GFCIs are critical in preventing electric shock by monitoring the electrical current flowing through the circuit and shutting it off if a ground fault is detected.

In industrial and construction settings, ensuring all outlets are equipped with GFCIs significantly reduces the risk of accidents and enhances overall safety, aligning with the goals laid out in NFPA 70E. The other standards mentioned, such as NFPA 10 (which deals with portable fire extinguishers), NFPA 13 (which covers the installation of sprinkler systems), and NFPA 25 (focused on the inspection, testing, and maintenance of water-based fire protection systems), do not specifically address requirements for electrical outlets or the installation of GFCIs. Thus, NFPA 70E clearly stands out as the relevant standard for this requirement.