This publication serves as a comprehensive set of standards for safe electrical installations. It provides requirements for electrical wiring, overcurrent protection, grounding, and equipment installation. Compliance helps to minimize hazards to persons and property from the use of electricity. For instance, the document specifies the allowable ampacity of conductors for various insulation types and installation methods, ensuring circuits are not overloaded.
Its importance stems from its role in preventing electrical fires and shocks, contributing to overall public safety. It undergoes periodic revisions and updates to incorporate new technologies, address emerging safety concerns, and refine existing requirements based on field experience. Historically, adherence to these standards has significantly reduced the incidence of electrical accidents.
