This publication serves as the cornerstone for electrical safety standards in the United States. It contains a comprehensive set of regulations governing the safe installation of electrical wiring and equipment. An electrician, for instance, would consult this reference to ensure a residential wiring project adheres to the latest safety protocols, covering everything from wire gauge selection to proper grounding techniques.
Its significance lies in its role in minimizing electrical hazards, protecting lives, and preventing property damage. By providing uniform standards, it enables consistent and reliable electrical installations across the country. Its historical context reveals a continuous evolution, adapting to new technologies and addressing emerging safety concerns through regular updates and revisions.