The need to control access to buildings and internal areas within them has led to the proliferation of electronic locking systems. Their primary mission is to determine the identity of those who wish to enter through a protected door.
According to the Associated Press, copper thefts are on the rise, as China’s expanding economy continues to provide a high demand for scrap metal. Historically, copper theft has been cyclical, with temporary rises when the price of metal is high.
We appear to be entering a slow construction period. Those of us in the field have experienced these slow periods before, and we know that professional electrical contractors who plan for these slowdowns prosper through them.
Most people who are products of the American education system could, oddly enough, tell school clock stories. Examples might include anecdotes like this one, which could have been from the high school level, “The clock in Mrs.
Often when you are installing fire alarm systems, you are asked what style or class of circuitry you plan to use. The circuit designations may be required in a local or state code or may be specified by the designer of the fire alarm system.
The National Fire Alarm Code, NFPA 72, Section 10.4.1.1 requires trained technicians to perform an acceptance test on all new fire alarm systems. Specifically, the section states, “All new systems shall be inspected and tested in accordance with the requirements of Chapter 10.
Data centers live and die according to their ability to cool their systems. If a data center loses its ability to keep cool, then its systems will fail. Part of the data center management team’s responsibility is ensuring the systems do not get too hot.
The demand for photovoltaic (PV) systems in commercial, institutional and residential buildings continues to grow. Over the past decade, the PV industry has experienced phenomenal growth driven by environmental concerns.
Running a successful contracting business is a time-consuming job. You spend time marketing and selling your company to clients and then spend time operating the company, hopefully at a profit. Those of you who install fire alarm systems often treat them like other electrical projects.
The drive toward high performance buildings demands the integration of diverse building systems that were not previously required to interact with one another. For example, occupancy sensors no longer control just lighting in a space. They also control the HVAC system supplying that space.
During a recent NFPA fire alarm systems seminar, a gentleman introduced himself and his two technicians. They had traveled quite a distance. Knowing NFPA planned a future seminar in his state, I asked why he did not wait to attend the closer seminar.
The U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy defines a high-performance building (HPB) as “a building that is substantially better than standard practice.” There are no exact criteria for defining an HPB.