EC&M Asks — Summarizing NEC Art. 430 Requirements

March 28, 2024

In Episode 32, SME Randy Barnett addresses overcurrent protection, overloads, and sizing conductor requirements for motors.

Randy Barnett

In Episode 32 of “EC&M Asks,” a video series featuring subject matter experts (SMEs) answering reader-submitted questions regarding popular electrical topics, Randy Barnett, a journeyman electrician, inspector, author, trainer, and electrical safety expert, answers motor-related questions sent in from EC&M readers. He addresses the requirements found in NEC Art. 430 regarding sizing conductors, overloads, and overcurrent protection.

About the Author

Randy Barnett | CESCP

Randy Barnett is an NFPA Certified Electrical Safety Professional, a long-time journeyman electrician, instructor and author with expertise in industrial electrical construction and maintenance. He is Electrical Codes & Safety Manager for NTT Training. Because of his ability to develop and deliver quality programs, Randy has trained more than 10,000 students in all 50 states, including Canada, Singapore, Afghanistan, Dubai, Trinidad, and Saudi Arabi. His articles appear in numerous trade publications and, his book on "Commercial and Industrial Wiring" is used as an entry-level text in many electrician training programs. Randy also appears at various corporate and trade association speaking engagements and consults on training program design and implementation. Randy is a graduate of the U.S. Navy Nuclear Power School, served as a nuclear electrician in submarines and holds a B.S. in business.