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 ...

Homeowners who are comfortable swapping outlets or adding a new light often discover the hard way that the rules have shifted ...

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 ...

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

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 ...

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

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 ...

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, ...