Do you know what OSHA has to say about electrical safety testing requirements on jobsites? In the rugged construction site environment flexible cords that supply portable tools and appliances are all ...

False claims, fake approvals, and blind spots in protection; what is really happening with today’s so-called safety devices?

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 ...

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 ...

The methods of protecting electronics from circuitry failures and managing inrush current at power on has evolved significantly from a simple fuse and maybe a P-channel FET to much more sophisticated ...

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 ...

An Electrical Engineer, Olawoyin Rasaki, has said the way out of electric shocks and fire in buildings involved selection of protective equipment and determination of current carrying capacity of ...

The Weekly Fix is a home maintenance column by Home Repair Resource Center, a Cleveland Heights nonprofit that helps homeowners buy, repair and retain their homes. Each week, the center offers a ...

Safety codes often require “ground fault circuit interrupter” inclusion for electrical power outlets. The operation of such a device depends on making a comparison of the current levels in two wires, ...