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Monthly Archives: July 2004

Single Conductor Exposed Cables! Not In My Jurisdiction!

So sayeth the inspector when faced with inspecting his or her first rooftop residential or commercial PV installation. Yes, PV systems have some unusual...

Grounding Electro-Magnetic Interference Study (GEMI)

Newly appointed Executive Director J. Phillip Simmons approached me and asked if I knew where Eustace C. Soares got his information to develop the...

Improving Service in the Testing and Certification Industry

The testing and certification industry today faces an urgent challenge from its customers: make the product approval process more convenient and less time consuming,...

Arc-Fault Circuit Interrupter Technology

Did you know that residential electrical fires, as reported by the National Fire Protection Association, causes an average of nearly 73,000 fires every year?...

Grounding Rules for Separately Derived Systems Reorganized and Revised

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...

One Out of Four Homeowners Never Check for Electrical Hazards

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...

Basic Electricity, Part 1

The more accident investigations I perform, the more I am convinced that a thorough understanding of basic electricity is critical in solving tough cases....

Same Language, Different Words

We Canadians and our American friends use the same language, English, to communicate among ourselves and with each other. We generally take it for...

Can I get an email update from UL when new information is added to...

Question: Email updates? Can I get an email update from UL when new information is added to UL’s Regulators page or other UL information is...

Taking the Collar Off IAEI

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...
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