L. Keith Lofland is the Director of Education, Codes and Standards for IAEI. He represents IAEI as a member of Code-Making Panel 9 for the National Electrical Code. He serves on NFPA’s Electrical Section Executive Committee and also is a member of UL’s Electrical Council. He is the principal contributor to several IAEI publications including Analysis of Changes, Soares Grounding and Bonding, and One- and Two-Family Dwelling Electrical Systems. Prior to his position with the International Office of IAEI, Keith spent 16 years with the City of Garland (Texas) serving as their chief electrical inspector during a 21-year career as an electrical inspector. Keith holds a master electrician license from the State of Texas. He also has obtained electrical inspector certifications from IAEI, NFPA/IAEI, and ICC. He served as chairman of the Texas Chapter of IAEI in 1989 and as the secretary/treasurer for the Texas Chapter-IAEI for 10 years from 1995–2004.
If you are involved with the electrical industry and the National Electrical Code (NEC), change in our world is inevitable. The Code is changed and updated every three years. With changing technology and…
It is imperative that the NEC evolves to engulf these innovative techniques. With that backdrop in mind, this article will look at some of the more noteworthy changes that are being proposed for the 2020 NEC.
For example, today’s Code requirements state that an intentionally grounded conductor (sometimes referred to as a neutral conductor) is required to be installed at all switch locations where switches control lighting loads that are supplied by a grounded general-purpose branch circuit, or are they?
Understanding the information on equipment nameplates is essential to properly evaluate an air conditioner or heat pump installation. This understanding simplifies the selection of the correct branch-circuit conductor size, the type and rating of the overcurrent protection device, and the size of the disconnecting means.
ESD often occurs when low levels of alternating current (ac) are present in the water and pass through a person’s body, causing paralysis of their muscular and skeletal systems while swimming or otherwise immersed in fresh water.