Category: Assessment Technology

An electrical hazard analysis identifies dangers that are present in an electrical system. This starts at the building’s electrical service and continues through the electrical distribution system to the building loads, including panelboards, motors, safety switches, etc. This analysis should identify electrocution (shock) hazards, arc flash (burn & toxic vapor) hazards and arc blast (pressure & shrapnel) hazards.  more

One of the most challenging aspects of designing modern video surveillance systems involves managing the Owner’s expectations. With the prevalence of large flat monitors and televisions in homes and the creative license of shows like CSI and NCIS, it is expected that security video cameras deployed on a site will provide crystal clear images where identification of a perpetrator will be possible regardless of the ambient light levels, weather conditions, or the perpetrator’s distance from the camera. more

In my earlier columns, I tried to explain the concept of uncertainty analysis and also draw the attention of the industry to the advantages of performing probabilistic energy modeling. One of the most valuable complementary tools to uncertainty analysis is sensitivity analysis. Terje Aven in his book, Foundation of Risk Analysis,1 gives the following definition for sensitivity analysis: “A sensitivity analysis is a study of how sensitive the risk is with respect to changes in input parameter of risk model.” more

When one thinks of critical infrastructures, some come quickly to mind: the water system, the power grid, the Internet, dams, bridges, roads, air and rail transportation to name a few. Commercial buildings may not occur to the average individual as critical infrastructure, but they are considered as such by the Department of Homeland Security (DHS) and ASIS International. If we think about the impact of the 9/11 attack on the Twin Towers, we understand why. The attack on the Twin Towers cost nearly 2,600 people their lives, and launched the United States into a long term war on terror that has increased the national debt approximately 1.5 trillion dollars.1  more

While overall data center efficiency can be increased through server virtualization and consolidation efforts, the use of these technologies is also pushing many data centers’ power and cooling densities beyond their original infrastructure capacity. These trends, along with the EPA’s recent report on data center inefficiencies, have caused many data center owners to reevaluate the design of their facilities and to look for innovative ideas to optimize their next generation mission critical facilities.1  more