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Perspectives on PV: Single Conductor Exposed Cables! Not In My Jurisdiction!     by John Wiles Photovoltaic (PV) power systems have some unusual wiring methods allowed by the Code. However, since all of the usual wiring methods found in chapter 3 of the Code also apply, the inspector must sort through what is allowed and what has been installed by the typical do-it-yourselfer or other uninformed installer of electrical equipment.

Grounding Electro-Magnetic Interference Study (GEMI)   by Richard E. Loyd The grounding study which has evolved into the usable software program GEMI W2.20 was begun in Albuquerque, New Mexico, in October 1990 at the IAEI Southwestern Section Meeting. One Out of Four Homeowners Never Check for Electrical Hazards   by Jemarion Jones Out of more than 75 million American homeowners, one out of four never checks for electrical hazards and thus is vulnerable to electrical home-structure fires and other incidents that can cause significant personal and financial losses, a new survey commissioned by the Independent Insurance Agents & Brokers of America (IIABA) has found. Grounding Rules for Separately Derived Systems Reorganized and Revised by Michael Johnston Section 250.30(A) has been reorganized and restructured to provide a more logical layout and improve clarity for users as a result of the work of a task group to achieve those primary objectives. Arc-Fault Circuit Interrupter Technology by Walter Smittle Electrical technology continues to improve providing a safer environment for the owners and occupants of dwellings. New materials and wiring methods and the development of the ground-fault circuit interrupter (GFCI) to prevent accidental electrical shock is a success story for saving hundreds of lives.

Editorial: Taking the Collar Off IAEI  by James Carpenter, CEO/Executive Director Back when I was just a little shaver, sitting at my Grandmother Carpenter’s knee, she recounted to me an aphorism I did not understand at that time. "The youth of this world have been going to the dogs since the days of Rome, but they have not gotten there yet." Now, some sixty years later, that saying has caused me to realize that truth in many more ways than just being applied to the youth. Canadian Code: Same Language—Different Words  by Leslie Stoch We Canadians and our American friends use the same language, English, to communicate among ourselves and with each other. We generally take it for granted that we will understand each other, but unfortunately that doesn’t happen automatically. This is often true, especially when we attempt to discuss precise, technical stuff such as the electrical code. Electricity Fundamentals: Basic Electricity—Part 1  by David C. Young, PE The more accident investigations I perform, the more I am convinced that a thorough understanding of basic electricity is critical in solving tough cases. In the past twenty years, I have taught basic electricity more than any other subject. A majority of my students are lawyers. In order for them to understand how an electrical accident happened, they must know the basics of electricity. UL Question Corner  (pdf)  by Underwriters Laboratories The “UL Question Corner” answers questions of general interest that are sent in from authorized government inspectors and we believe will have interest for many inspectors. Ask CSA: Improving Service in the Testing and Certification Industry  by CSA Group The more accident investigations I perform, the more I am convinced that a thorough understanding of basic electricity is critical in solving tough cases. In the past twenty years, I have taught basic electricity more than any other subject. A majority of my students are lawyers. In order for them to understand how an electrical accident happened, they must know the basics of electricity.

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