The National Electrical Safety Code (NESC) or ANSI Standard C2 is a United States standard of the safe installation, operation, and maintenance of electric power and communication utility systems including power substations, power and communication overhead lines, and power and communication underground lines. It is published by the Institute of Electrical and Electronics Engineers (IEEE). "National Electrical Safety Code" and "NESC" are registered trademarks of the IEEE.
The NESC should not be confused with the National Electrical Code (NEC), which is published by the National Fire Protection Association (NFPA) and intended to be used for residential, commercial, and industrial building wiring.