Surge protection for an electrical panel controls how transient voltages enter and spread through branch circuits inside the ...

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 ...

Explanation: Section 427.22 requires heat trace cable on pipelines to have ground-fault protection of equipment, not personnel. Lupacchino is a senior design engineer with Gaylor Electric, Inc. in ...

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 ...

A motor protection relay safeguards electric motors by detecting thermal stress, phase imbalance, stall, and abnormal ...

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 ...

Homeowners tend to think of electrical work as something you tackle only when a breaker keeps tripping or a renovation forces ...

Complex grids depend on equipment such as transformers, protection relays, switchgear, and cables—each of which can develop faults not immediately visible during normal operation. As a result, ...

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 ...

AREVA Transmission & Distribution has just launched a cost-efficient and user-friendly family of advanced numerical distance and differential protection relays in its MiCOM range AREVA Transmission & ...