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System Grounding

Date: Thursday, April 22nd, 2010

Location: SRP Information Services Building (ISB), 1600 N Priest Dr, Tempe, AZ 85281

Speaker: James Willey, I-gard

Topic: "System Grounding"

The NEC permits electrical distribution systems to be solidly grounded, ungrounded, or impedance grounded. The choice of system grounding affects the reliability, safety and operation of the electrical distribution system. High resistance grounding is being used as a means to increase system reliability and reduce arc flash hazard.

Speaker Bio:
Mr. Willey has over 30 years of experience in the design and installation of electrical distribution systems. He has worked as a consulting engineer, Field applications engineer for a manufacture of over current protection devices, and currently for I-gard corporation as Western Regional Manager. His background includes PV systems, industrial, commercial and institutional systems, generating stations and high voltage transmission lines. He has taught classes in various aspects of over current protection, the National Electrical Code, and NFPA 70E, standard for Electrical Safety in the workplace, for professional, educational, and trade organizations. He is a graduate of the University of Arizona in electrical engineering, a Registered Professional Engineer, and a member of the IAEI and IEEE. Mr. Willey has served as an advisory member to the City of Phoenix Electrical Code committee and was the Chairman of the Arizona Nema subcommittee on Electrical Safety.