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 ...

Here's the thing about electrical work in your home. The temptation to save a few hundred bucks can be powerful, especially when online tutorials make everything look ridiculously simple. Problem is, ...

Ground fault protection is a cornerstone in ensuring the safety and operational reliability of modern power systems. Ground faults, which occur when an unintended electrical path connects a live ...

The HelloNation article emphasizes the growing importance of understanding the national electrical code when planning improvements. Homeowners often focus on visible upgrades, yet hidden issues in ...

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 ...

As more and more employers perform arc flash assessments of their facilities to keep workers safe and meet OSHA and NFPA 70E requirements, they usually discover that they have a lot of dangerous ...

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 ...

Members can download this article in PDF format. Reliability of the power-conversion system is a critical issue, especially at high power levels. Application areas that fall under this umbrella ...

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 ...

Analog input protection for high performance signal chains is often a pain point for system designers. There is typically a significant trade-off between analog performance (leakage, on resistance, ...