This article discusses many common misunderstandings about the function of the neutral wire and its relation to power problems. The subjects of dedicated lines, phase reversal, isolation transformers, ...

James “J.J.” Jones Jr., senior electrical engineer for BPLW Architects & Engineers Inc., El Paso, Texas, took these photos (at left) of an existing computer server room inside an office building. The ...

When clients call you because operating problems on pieces of their 120V equipment cause them to suspect their facility's power supply, you have to decide where to start your investigation. Don't ...

A pretty typical diagram for the grounding system for a house is shown here, along with a few of the current carrying conductors commonly called live and neutral. On the far left is the transformer ...

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 ...

Q: I was hoping you guys could tell your readers what the benefits would be in installing GFCI outlets even if there is no grounding wire. There are probably many homeowners who would be willing to ...