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September-October 2004
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September-October 2004 CoverSeptember-October 2004

TABLE OF CONTENTS

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Features

The Wind of Change Hits the NEC

by Michael Johnston

The first change that will be apparent is the relocation of Article 80, covering administration and enforcement requirements, to Annex G. The information has not been revised, is still informational in nature as it was in the 2002 NEC, and can be adopted as requirements by jurisdictions that so choose. Read more

Perspectives on PV

Should They Be Grounded?

by John Wiles

At first glance, the obvious answer is: Photovoltaic (PV) systems are no different from other electrical power systems, and of course they should be grounded as required by the National Electrical Code. The real question is: How critical is grounding PV systems? Read more

Why are We Here? And Where Will We Be Tomorrow?

by George Ockuly

There is not a single person in this room whose life has not been affected by the National Electrical Code, some of us by the inherent safety in our home’s wiring system, and others by the safety and functionally of our office or plant’s electrical distribution system. In America, a safe, reliable electrical system is generally considered a given. We pretty much take our premises’ wiring systems for granted. They are safe, functional and cost-effective. Read more

ID Theft: Keeping a Grip on Your Valuables and Identity!

by Federal Trade Commission

The 1990s spawned a new variety of crooks called identity thieves. Their stock in trade? Your everyday transactions, which usually reveal bits of your personal information: your bank and credit card account numbers; your income; your Social Security number (SSN); or your name, address and phone numbers. An identity thief obtains some piece of your sensitive information and uses it without your knowledge to commit fraud or theft. Read more

Electrical Safety Should Not Be Compromised

by Eric Thies

With a permanently mounted live line indicator, the end-users are instantly warned that a particular part of their high voltage installation is energized and under power. The fixed mounted high voltage indicators are protective safety devices that will indicate the status of the electrical distribution system to the worker, maintenance personnel or inspectors. When approaching an electrical installation, either in an open area with indoor protection or in an indoor/outdoor switchgear apparatus, the most effective and inexpensive method is to provide the electrical installation with a permanently mounted single pole voltage indicator. Read more



Departments

Editorial

Two Down, and…

by James W. Carpenter

Another year has passed since I became your CEO and Executive Director. Two years and you would think I would have learned all about the operation of the International Association of Electrical Inspectors by now. Things just keep changing! Just when I think I have a handle on a situation something else comes along. Get the roof repaired and it leaks somewhere else. Just getting around to learning the 2002 National Electrical Code and out comes the 2005! Things are always changing. As I said two years ago in my first editorial—Yesterday things where different, today things are different again. Read more

Canadian Code

Looking at Signs

by Leslie Stoch

The Canadian Electrical Code, Section 36 defines high voltage as any voltage in excess of 750 volts. Rule 36-006 specifies all of the locations and situations where special signage is required to warn persons of high voltage hazards, awareness being extremely important for protection against electric shock. Another important consideration—access to high voltage areas must at all times be confined to people with special qualifications for entering and working in such areas and therefore all such areas must be accurately identified. Read more

UL Question Corner

What are the types of equipment that can be subject to a field evaluation?

by Underwriters Laboratories

First, it is important to understand why field evaluations are performed. Section 90.7 of the 2002 National Electrical Code outlines specifific considerations for approval of equipment by the AHJ. Inherent in this language is the recognition that equipment should be evaluated to specific parameters by an organization with proper facilities to evaluate the construction and components of the equipment. Without third-party evaluated equipment, a jurisdiction would be faced with judging equipment based on NEC requirements alone. NEC requirements primarily focus on the installation of equipment and therefore, are not suitable for the evaluation of internal wiring and components used in many products. Read more

Other Code

Basic Electricity, Part 2

by David Young

In part 1, I described current as being the motion of electrons from one atom to the next within a material. A material’s ability to conduct current is a function of its ability to pass on electrons. All materials conduct current to some degree. Materials that resist the passing on of electrons are called insulators. Materials that put up very little resistance to the passing on of electrons are called conductors. Read more


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