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January-February 2004
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January-February 2004 CoverJanuary/February 2004

TABLE OF CONTENTS

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Features

Grounding and Bonding Methods for Outbuildings

by Michael Johnston

Most properties today, whether residential, commercial, or industrial, include at least one building or structure on that property. Often there are multiple buildings on a single property. Some include buildings that are each supplied by its own utility service and others have an electrical service at one point and deliver electrical power to the other buildings or structures by feeder(s) or by branch circuit(s). This article takes a closer look at the grounding and bonding requirements and methods for separate buildings or structures supplied from other than a service. Read more

Which came first, the NEC rule for the product standard; or does the egg precede the chicken?

by Steve Campolo

Anyone who has served on an NEC code-making panel or a standards development organization’s advisory committee, knows how intertwined these two endeavors are. Simply being a user of the NEC or any third party product standard, one sees that the interrelationship between a product standard and the applicable installation code is paramount to safety and well-known. However, the process whereby one standard can influence the other can often be fuzzy and downright confusing. This article will examine by example several recent interactions between installation code and product standards. Read more

Warning: Electrical Equipment May Be Hazardous To Your Healthcare

by Greg Smith

Health care facilities are an integral part of our lives. We regularly visit them ourselves and take our loved ones to them for care. We assume that we are taking them for help and improvement, and that the technology being used will not cause harm. We think of electrical power as something that exists for our benefit, as a convenience or a tool. Electrical equipment surrounds us and we rarely consider the potential dangers that lie within. Read more

Change…We Deal With It Not Because It’s Easy, But Because It’s Hard

by Tom Moses

Many years ago, rookie baseball umpire Durwood Merrill found himself behind the plate for a game when legendary fastball pitcher Nolan Ryan was on the mound. The second pitch of the game was so fast that Merrill never saw it. He froze, unable to make the call. Finally, he yelled, "Strike!” The batter then backed out of the box, looked over at Merrill and said, "Ump, don’t feel bad, I didn’t see the ball either!” Read more

Backfire!

by David Shapiro

It can happen. Research shows that what you say when urging responsible behavior can backfire—easily. None of the research was specifically about electrical safety, but there’s every reason to believe it applies. Fortunately, if you have the intelligence it takes to earn a license, what you need to keep in mind to avoid this risk is not going to be over your head. Read more



Departments

Editorial

IAEI’s Changing Leadership Role…Helping Inspectors Adapt to Change in 2004

by James W. Carpenter

All I know is what I read in the newspaper.” I have used that line before. It is a quote from Will Rogers, and Chub Sewell used to open his articles in the North Carolina State magazine that way for many years. Read more

Canadian Code

Maximum Circuit Voltages

by Leslie Stoch

The Canadian Electrical Code in some instances limits maximum applied voltages to protect the general public and inexperienced people from electrical shock hazards. Unqualified persons are at greater risk due to their inability to identify electrical hazards and understand electrical shock risks. This article reviews some of the circumstances where the code prescribes maximum voltages to minimize exposure to serious electrical shock Read more

UL Question Corner

What should we do if we experience a nuisance trip on a UL Listed arc-fault circuit interrupter (AFCI)?

by Underwriters Laboratories

Most circuit breaker type AFCIs are Listed under the category Arc Fault Circuit Interrupters, Branch/Feeder Type (AVZQ) located on page five of the 2003 General Information for Electrical Equipment Directory (the White Book). Read more

Other Code

The World of Industry Standards

by David Young

The National Electrical Safety Code (NESC) and the National Electrical Code (NEC) are both examples of industry standards. These two standards are very important to most IAEI members because we use one or both of them every day. Though these two standards are prominent in our minds, there are thousands of other industry standards that have a significant effect on us each day. Did you know that there are industry standards that cover everything from toilet paper to topsoil? For those standards, see American Society for Testing and Materials, ASTM D3905 and D5268. Read more


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