Which organization provides guidance on protective devices under NFPA 70?

The National Fire Protection Association (NFPA) is the organization responsible for developing and publishing codes and standards related to fire safety, including NFPA 70, which is known as the National Electrical Code (NEC). This code provides important guidelines and requirements for electrical installations to ensure safety, including the use and application of protective devices such as circuit breakers, fuses, and grounding systems.

The NFPA focuses on reducing the risk of fire hazards associated with electrical installations, making it essential for professionals in the electrical field to follow its guidelines. NFPA 70 specifically outlines how to properly install these protective devices, ensuring that they will operate effectively in safeguarding electrical systems against overloads, short circuits, and ground faults.

While other organizations like the National Electrical Manufacturers Association (NEMA) and Underwriters Laboratories (UL) play important roles in the electrical industry—such as promoting technical standards and providing product safety testing—the NFPA is the primary authority on development and enforcement of the electrical safety code. The Institute of Electrical and Electronics Engineers (IEEE) contributes valuable research and publications but is not the leading authority on protective device guidelines in the context of NFPA 70.