Danger in the natural world is not always large or obvious. Some of the smallest creatures on Earth possess toxins, diseases, or behaviors that can cause serious harm to humans. Encounters are often ...

Abstract: This paper discusses the factors to consider for sizing current transformers (CTs) for line protection applications. We first cover CT basics, with emphasis on errors and ac and dc ...

The evolution of today’s Power over Ethernet (PoE) and Power over Data Line (PoDL) systems. The fundamental power delivery characteristics of PoE and PoDL and how these digitally integrated, ...

A 240v outlet sits behind many big household upgrades, from a faster clothes dryer to a Level 2 EV charger in the garage. Once homeowners start pricing those upgrades, the next step is usually a ...

In this EC&M Tech Talk Randy Barnett discusses in five different sections the concepts and rules of overcurrent protection. Overcurrent protective devices include the fuses and circuit breakers ...

The final image captured by the recently decommissioned Landsat 7 satellite shows how "Sin City" has nearly doubled in size during the iconic spacecraft's 25-year lifespan. When you purchase through ...

Article 215 covers the installation, conductor sizing, and overcurrent protection requirements for feeder conductors not over 1,000VAC or 1,500VDC (Fig. 1). Fig. 1 ...