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Monthly Archives: January 1999

A Closer Look: Looking at Article 240 Through the 1999 NEC

For those of us who have been using the NEC for a number of years, when looking at the 1999 edition, we see a...

What Changed in Article 690?

Article 690, Solar Photovoltaic Power Systems, has been in the National Electrical Code (NEC) since 1984. An NFPA-appointed Task Group for Article 690 proposed...

Which GTO cable types may be used in electric signs?

Question: GTO cable Which GTO cable types may be used in electric signs? I am especially interested in the cable that looks like a coaxial...

The Cost of Losing an Arm

Tom had flash burns to his face. Fortunately, he had been wearing safety glasses. What was left of his right arm had to be...

IAEI Chapters Promoting Good Education

Two major purposes of the IAEI is to promote the uniform understanding and application of the NEC and other electrical codes and to collect...

Photovoltaic Power Systems and the NEC

Introduction Photovoltaic (PV) systems that generate electricity from sunlight are being installed in ever increasing numbers throughout the United States and the rest of the...
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