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Structured Cabling by Ian Hendler The information revolution has paved the way for structured cabling to enter the mainstream of new home construction, where it will take its place alongside the other essential home services—namely, telephone, gas and electricity--as a fourth utility.

Series Combination Rating Requirements by Tim Crnko Series combination ratings are utilized to attempt to save money on some jobs. A simple checklist can be completed by the contractor and/or designer when series rating combinations are proposed. AFCI Troubleshooting by Dan Prater Section 210-12 of the National Electrical Code requiring arc-fault circuit protection in bedrooms has been in effect since January 1, 2002, but many still do not fully understand its function  Supplementary Grounding Electrodes by Michael Johnston Electrical systems and non-current-carrying metal parts of equipment in an electrical installation generally are required to be grounded; however, alternatives are given within the NEC that relax the grounding rules for equipment.  3rd Harmonic Blocking Filter by Tony Hoevenaars, P.E. Third harmonic blocking filters reduce neutral current by preventing loads from drawing 3rd harmonic current. They will eliminate neutral conductor and transformer overheating but introduce NEC concerns and the potential for serious power quality issues. Update on NFPA 79, 2002 by Tom Garvey and Todd Lottmann NFPA 79, the Electrical Standard for Industrial Machinery 2002 edition, is scheduled to be published in October 2002.

Editorial: "Yesterday things were different...Today, they are different again." by James Carpenter, CEO/Executive Director The opening line from a southern gospel music song by the Cathedrals has special meaning for me at this point of my life. Yesterday, I was very comfortable in my position as the chief electrical engineer, state electrical inspector with the North Carolina Department of Insurance. Today, I find myself moved to another state and with a new position—CEO & Executive Director of the International Association of Electrical Inspectors. Now you may surmise from the opening of this editorial that big changes are coming as I begin this experience as your CEO, but I am not one to rush in and make a lot of changes. Canadian Code: Canadian Electrical Code Revisions: Grounding and Bonding Requirements  by Leslie Stoch The new 19th edition of the Canadian Electrical Code has brought about some changes in the grounding and bonding rules. Not many of these are major changes. In a few instances, a change might simply be the re-arrangement of some words or the relocation of rules to more logical places in the code. In this article, we will review some of the revisions made in Sections 10, 60, and 68 as they affect grounding and bonding. Other Code: NESC Substation Grounding  by David C. Young, PE In this series of articles, I will try to shed some light on the often difficult-to-understand grounding system design methods used to comply with the NESC grounding requirements. 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: Fuel Cells: Rationalizing Regulatory Responsibility by Glenn Tubrett, Program Manager, Canadian Gas Standards, CSA Fuel cells are being touted as the energy source that will facilitate sustained and environmentally responsible growth without dependence on unstable global oil markets. As a new technology incorporating both gas and electricity, there is uncertainty and inconsistency in the industry regarding regulatory responsibility.

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