We begin Part 2 of this three-part series by continuing our discussion of the requirements for securing and supporting raceway and other parts of electrical systems. The NEC requires raceways, cable ...

The distinction between a branch circuit and a feeder can be a source of confusion for many Code users. The first step in eliminating this confusion is to understand that the NEC defines a branch ...

This design example report describes a two-wire (no neutral), wide range, non isolated flyback, bluetooth wall switch using Link Switch-TN2 family of devices. It has an input voltage of 90 VAC-277 VAC ...

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 ...

Verifying that a wire goes from A to B is easy. With hundreds of As and Bs, maybe you need a cable tester. Cable/harness testing addresses safety, maintenance, and manufacturing quality issues across ...