Perspectives on PV: PV Systems and Workmanship 
by John Wiles
With electrical system lifetimes exceeding forty years, PV systems must be installed using the best available workmanship to ensure public safety over the life of the system. Article 110, Requirements for Electrical Installations, and particularly Section 110.12, Mechanical Execution of Work, of the National Electrical Code (NEC) establish some general requirements for the installation of electrical equipment.
Pre-Alt Inspections
by George Anchales and Bob Ludecke
The Fire Protection Research Foundation Residential Electrical System Aging Research Project evaluates the condition of electrical systems in various older homes in order to determine how aging original installations and later modifications may relate to residential electrical fires.
What Do Those Economic Indicators Mean, Anyway?
by Jesse Abercrombie
If you follow the news regularly, you will see many different reports on the state of the economy. Government officials and economists closely watch these reports — and, as an investor, maybe you should, too.
Case Study: Arizona Cardinals’ new state-of-the-art retractable stadium roof
by Michael Vallier
As professional sports venues become bigger and more complex in design and scale, architects and engineers are looking for bold new ideas. Retractable roofs have become a popular feature in those structures because they provide the ability to control the stadium’s interior environment more effectively.
What Do the Markings on Circuit Breakers Mean?
by Ed Larsen
Have you ever been confused about what the markings on circuit breakers mean? Understanding the markings on electrical equipment is a fundamental need to ensure a safe and reliable electrical installation.
Temporary Services — an anything goes situation?
by Michael Weitzel
In most areas of the country, building construction is booming, and there is a huge need for and use of temporary construction power. As electrical inspectors and installers in the field, we either inspect, install, or otherwise work with these types of installations frequently, if not daily. That being the case, it can be easy to become too comfortable with electrical equipment that is commonplace and all around us.
The Value of Electrical Inspection
by Michael J. Johnston
The electrical power and lighting that powers society has become a resource that is taken for granted. People generally don’t think twice about the electricity they use until it is not available. Another expectation is that the electrical system within their dwelling or place of business is safe.
Report: NFPA Electrical Inspector’s Forum
This special report focuses on the forum of electrical inspectors hosted by NFPA on May 22–23, 2006. The purpose of this forum was to identify issues where the electrical industry can provide support that will enhance the quality of the electical inspections process across the country (or around the world). |