All questions and answers are based on the 2017 NEC. Q. Per the NEC, overcurrent protection devices must be placed at what location in branch-circuit or feeder conductors? A. Except as permitted by ...

Changes to the 2011 NEC affect how you supply power to a structure and protect the conductors carrying that power. Most of these changes are subtle, so understanding the new requirements isn’t ...

Incident energy is directly proportional to the total arcing time. Because of this, most strategies for arc flash hazard mitigation focus on faster detection and clearing of the arc flash. The two ...

ABB has released its Relion REF615R feeder IED. The REF615R was designed to offer an easy, quick and affordable way to upgrade ABB’s DPU2000R relay along with providing a 19-inch rack mount version of ...

The 5-inch, 800-by-480-pixel color touchscreen display lets users seamlessly navigate to the various folders and application options. Users can create custom bay screens exhibiting one-line diagrams, ...