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Monthly Archives: March 2013

Batteries in PV Systems

Electrical power outages are becoming more common in recent times with man-made and natural disasters, and the aging utility infrastructure. With natural disasters such...

We’ve got an app for you…

Do you recall the day when personal and business computers first came on the market, along with the notion that they would put people...

Shock and Awe

Recognizing shock hazards can be difficult to the untrained or inexperienced eye on job sites and especially areas / facilities that have experienced storm...

Pipe Organs — Standing the Test of Time

The National Electric Code, in Article 650, contains the electrical requirements for pipe organs. Pipe organs have been in existence since early Greece in...

Investment Mistakes to Watch for. . . at Different Stages of Life

As an investor, how can you avoid making mistakes? It’s not always easy, because investing can be full of potential pitfalls. But if you...

Application and Installation Requirements for Exit Signs: What, Why, and How

This subject, similar to many other issues that relate to the application and installation of electrically connected life safety system, is far from being...

Improving Electric Vehicle Charging Stations

As the popularity of electric vehicles (EVs) continues to expand, the demand for charging station availability is also increasing at a rapid rate. EV...

Parallel Conductors Revisited

High ampacity services and feeders are often installed with conductors in parallel to reduce pulling tensions and for easier handling. I’m sure you are...

Mineral-Insulated Cable Is Re-Classified with 2-Hour Fire-Resistive Rating

In September 2012, both UL and ULC withdrew certification for Electrical Circuit Protective Systems (FHIT and FHITC) that employed fire resistive cables. This included...

Does UL List (Certify) Paint Spray Booths?

Question Does UL certify paint spray booths? Does UL provide a field evaluation service for paint spray booths? Answer UL certifies (Lists) paint spray booths under one...
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