Blog - The Stress Point

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When Wet isn't Really Wet (Part 3)

Albert M. Rose, P.E.

In our first post (part 1) we discussed equipment ratings and location definitions (what is a dry or wet location). In our last post (part 2) we discussed equipment that is not made to get wet, yet for some reason it does and what do you do. So, what happens when the Authority Having Jurisdiction...

When Wet Really Isn't Wet (part 2)

Albert M. Rose, P.E.

In our last post we discussed equipment ratings and location definitions (what is a dry or wet location). In this post let's discuss equipment that is not made to get wet, yet for some reason it does. Does this mean it needs to be thrown away and a new one purchased? No, of course not.

When Wet Isn't Really Wet (Part 1)

Albert M. Rose, P.E.

It has been common in the past to assume that water and electrical equipment do not mix. However, just because a piece of electrical equipment, such as an electrical panel or a computer, gets wet doesn't mean that it needs to be replaced.

Diesel Fire Pump Damages

Diesel engines are a rugged and reliable choice for propulsion and power generation. In applications where electricity is not available or may be disrupted, a Diesel engine is a good choice for providing an alternative to an electric motor for pumps. Why, then, do so many Diesel engines with...

Smoke Detectors

Smoke detectors are a critical element for fire safety and have been found to reduce the risk of dying in a home structure fire by 54%. In this blog, we talk about two common types of residential smoke detectors and the importance of having them in your home.

Arc-Fault Circuit Interrupters (AFCIs)

What is an Arc-Fault Circuit Interrupter (AFCI) and how does it work? AFCIs are microprocessor-controlled devices that continuously monitor the voltage and current flowing in a circuit and interrupt the current flow if an arc is detected, and have been required as part of the National Electrical...

Condensate Drainage

To understand proper condensate removal, it is first important to have a working definition of the term condensate in the context of Heating, Ventilation, and Air Conditioning (HVAC). Most HVAC systems contain a form of refrigeration cycle which uses mechanical work acting on a fluid (in most cases...

The Meeting Point - Human-Machine Interfaces (Part 1)

Can a poorly designed user interface lead to a large loss? You better believe it. Have you ever hit the wrong button on the remote control, or had trouble getting a device to work correctly because it was left in the wrong mode? Thankfully, these sort of mistakes are just mild annoyances, but when...

Snow Loads

Jason M.K. Cochran, M.S., P.E.

Freshly fallen snow is often a beautiful and awe-inspiring sight to see. Some parts of the country may see new snow daily while other areas may only see it once a century. Regardless of how prepared our cities are, snow can have a great impact on our everyday lives, particularly on our structures...

Electrocution

Edgardo López, P.E., CFEI

EDT was asked to determine the cause of an electrocution of a pedestrian. The following information is a review of the case, and what EDT found to be the cause.