This answer is based on the 2017 NEC. A. Ground-fault protection of equipment is required for 277/480V service disconnects rated 1,000A or more. The rating of the ...

A friend who was buying an older house was concerned about electrical safety and asked for my opinion as an electrical engineer. All of the AC receptacles (also called outlets) in the house were the ...

What is ground-fault protection? The answer depends on whether you are talking about ground-fault protection of equipment or ground-fault protection of people. Just because ground-fault protection is ...

Electrical standards for PV systems: In part one of this series we looked at the background and scope of the U.S. National Electrical Code (NEC). We continued with a survey of 2011 NEC coverage of ...

You might think that with all our modern technology and safety awareness, homes would have safe electrical systems by now. Think again. Electrical inspectors from around the country continue to report ...

The comparison figure between no arc-fault state and arc-fault state under various type of loads, ranging from 30 W–60 W. An arc fault is an electrical discharge between two conductors due to poor ...

Editor’s note: I am happy to present this month’s author for this Signal Chain Basics blog, John P. Griffith, who is a systems engineer for the Interface group at TI. This article focuses on the ...

Researchers have developed a fast prediction and suppression method for transient piston displacement overshoot in free piston Stirling generators, addressing a fault condition that can quickly ...