An electrical system must have well-maintained insulation to operate properly and safely. Because insulation deteriorates with age, accurately testing its condition is essential. The megohmmeter is the basic testing tool to...

Optical power is to fiber optics like voltage is to the electrical field—it is the primary measurement unit and is fundamental to almost all other measurements. Optical power meters are used to measure transmitter output and...

Many powered devices in a building’s systems today are not directly connected to a standard AC source because electricity is brought to them by the same wires that transmit data by power over ethernet (PoE). PoE systems...

Remotely monitoring or controlling tools isn’t new, but with Bluetooth and Wi-Fi technologies and special apps, they have become easier to implement. Tool manufacturers are finding more ways to use them to make their products...

Fire and safety issues, wasted energy, unexpected breakdowns, unnecessary wear on equipment, early replacement—these are some of the serious and costly problems that can result from improperly operating electric motors. To...